2-way cartridge valve, actively controllable LC2A

Двухходовой патронный клапан с активным управлением LC2A Bosch Rexroth — это гидравлический прибор, который необходим, чтобы контролировать и регулировать поток рабочей жидкости в гидросистемах.

Принципом работы данного клапана является двухпозиционное управление потоком жидкости. Это устройство имеет два состояния: открытое и закрытое. При открытом состоянии рабочая жидкость проходит через клапан и передается в гидросистему. При закрытом состоянии поток жидкости блокируется и не проходит через клапан.

Активное управление клапаном осуществляется с помощью электромагнитного привода. Этот привод открыт или закрыт в зависимости от сигнала, поступающего от управляющей системы. Когда электромагнитный привод открыт, клапан находится в открытом состоянии, и поток жидкости проходит через него. Когда электромагнитный привод закрыт, клапан закрывается, и поток жидкости блокируется.

Двухходовой патронный клапан используют в гидравлических системах, в которых необходимо точное и быстрое управление потоком жидкости. Его можно использовать в промышленных машинах и оборудовании, автомобильной промышленности, сельскохозяйственной технике и других областях.

Основная функция двухходового патронного клапана с активным управлением LC2A Bosch Rexroth заключается в регулировании и контроле потока рабочей жидкости в гидросистемах. С помощью этого устройства происходит точное управление потоком жидкости, при этом открывая и закрывая клапан в соответствии с требованиями управляющей системы. Это позволяет обеспечить эффективную работу гидросистемы и выполнение необходимых операций.

Description

• Size 16 … 125
• Component series 1X
• Maximum operating pressure 450 bar
• Maximum flow 17000 l/min
• Size 16 … 125
• Component series 1X

Features

• Actively controllable 2/2 directional cartridge valve ("two-level active logics")
• Modular design, flexible circuit set-up
• Installation bore according to ISO 7368
• Energy efficiency due to flow-optimized geometry
• Leakage-free due to integrated shaft sealing
• Spool position monitoring “closed” and/or “open” or analog (can also be retrofitted)
• BG certification

Product description

General

The 2-way cartridge valves type LC2A (hereinafter referredto as "active logics" (2) are designed in compact modular design and basically consist of cartridge (control spool (3) and socket (4), intermediate cover (5) as fixed functional unit and a control cover type LFA (1) that is part of the Rexroth standard logics program. This control cover (separate order, see data sheet 21010 or 21050) establishes the connection with the pilot control valves and/or other hydraulic elements and thus integrates the most different functions - irrespective of the basic assembly. Virtually all standard and special control covers type LFA can be mounted. Optionally, the active logics (2) is available with position switch (6). By default, the "closed" position of the control spool (3) is recorded. The receiving hole for the position switch is provided as a standard. This means that the position switch "Q7" can be retrofitted at any time without requiring adjustments. In contrast to the logic assemblies with only one control area in the spring chamber ("passive logics"), the name "active logics" significantly stands for a version with differential spool, with at least one additional control area A4 ("two-level active logics"). This area allows for the opening and keeping open of the active logics (2) by means of pilot pressure (without the necessity of pressure in the main ports A or B). The spring chamber area A5 of the control spool (3) consists of the individual areas A1 + A2 + A4. Compared to passive logics without control area A4, this results in excess area which, with suitable hydraulic circuitry, offers advantages during closing and keeping closed (excessive force, closing velocity).

In general

Area total A5 = A1 + A2 +A4 = A3 + A4 The areas A1, A2 and A4 are effective in the opening direction, area A5 (and the spring force) in closing direction. So the resulting effective force determines the position and movement of the control spool (3). Usually, there are no interim positions in the directional function variants. The direction of flow is free and can thus be perfectly adjusted to the application. Active logics type LC2A are generally equipped with spool sealing and are therefore leakage-free inside. The seat area is hydraulically "tight".

Active logics for directional function

Depending on the task, different control spool versions are possible. The active area can be connected with the available pilot oil guides in almost any way and in this way, most different functions can be realized with only 1 basic assembly.

Installation bore

The active logics type LC2A can be directly installed in a standard installation bore according to ISO 7368 (see dimensions). Thus, it is also suitable as retrofitting for existing "passive logics" that must be leakage-free inside or require position monitoring or faster closing times.

Type LC2A 025 ...-1X/.Q7G24…

(with control cover type LFA . D... and monitoring of the closed position of the valve poppet)

Type code

01	02	03	04	05	06		07		08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24
LC	2A					–	1X	/																	*

01	Logic Cartridge	LC
02	2-level, active	2A
03	Size 16	016
	Size 25	025
	Size 32	032
	Size 40	040
	Size 50	050
	Size 63	063
	Size 80	080
	Size 100	100
	Size 125 (only version "F", valve poppet with overlap; not with version "450")	125
Control spool design (area ratio see product description)
04	A1:A2 = 2:1(A2 = 50 %)	A
	A1:A2 = 14,3 : 1 (A2 = 7 %)	B
	A1:A2 = 1 : 0 (A2 = 0 %)	D
05	Without spring	00
	With spring, cracking pressure approx. 4 bar (referring to control spool design "A")	40
06	Valve poppet without damping nose	E
	Valve poppet with damping nose	D
	Valve poppet with overlap (preferred with "spool position monitoring"; only with control spool design "B")	F
07	Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions)	1X
Maximum operating pressure
08	420 bar (standard)	no code
	450 bar	450
Active area1) connected to port:
09	Z1	Z1
	Z2	Z2
	Z1 and Z2	U
	X (not with version "450")	X
	Y (not with version "450")	Y
Spool position monitoring 2) (position switch 1 = "1"; position switch 2 = "2") (version "450" only with "Q7", "Q9" and "without")
10	Position monitoring "closed"
	Without position switch ("1" on side "Y" – can be retrofitted)	no code
	With 1 position switch ("1" on side "Y" – mounted)	Q7
	With 2 position switches ("1" - mounted on side "Y", attachment side of "2" NG-dependent ‒ mounted)	Q7Q7
	With 1 position switch and second installation bore ("1" on side "Y" – not fitted, attachment side of "2" NG-dependent– mounted)	Q.Q7
	Without position switch, with 2 installation bores ("1" on side "Y" – not fitted, attachment side of "2" NG dependent– not fitted)	Q.Q.
	Combined position monitoring "1" (closed) and "2" (open) 3)
	With 2 position switches "1" on side "Y" – mounted, attachment side of "2" NG-dependent – mounted)	Q7Q7T
	Without position switch, with 2 installation bores ("1" on side "Y" – not fitted, attachment side of "2" NG dependent– not fitted)	Q.Q.T
	With 1 position switch and second installation bore ("1" on side "Y" – not fitted, attachment side of "2" NG-dependent– mounted)	Q.Q7T
	- Position monitoring "closed"; NAMUR 4)
	With 1 position switch ("1" on side "Y" – mounted)	Q8
	– Analog, position sensing
	Inductive sensor with analog output (1 … 9 V DC); only with versions "LC2A . D40E-1X/…A", "LC2A . A.D-1X/…" and "LC2A . B.F-1X/…"	Q9
	Combination "analog" and "digital" upon request
Electrical connection for position switch 5)
11	Without position switch	no code
	UB = 24 V DC (standard; only with version "Q7" and "Q9")	G24
	UB = 8 V DC (NAMUR; only with version "Q8"; not with version "450")	G08
Pilot oil bore in the control spool 6)
12	Without pilot oil bore	no code
	- Pilot oil bore A → spring chamber (NG25 to 100 only)
	NG25 – Maximum pilot oil bore Ø 10.0 mm	A100
	NG32 – Maximum pilot oil bore Ø 13.0 mm	A130
	NG40 – Maximum pilot oil bore Ø 16.0 mm	A160
	NG50 – Maximum pilot oil bore Ø 20.0 mm	A200
	NG63 – Maximum pilot oil bore Ø 26.0 mm	A260
	NG80 – Maximum pilot oil bore Ø 32.0 mm	A320
	NG100 – Maximum pilot oil bore Ø 40.0 mm	A400
Nozzle fitting
13	Without orifice	no code
	With orifice in channel X – ➀	X**
14	Without orifice	no code
	With orifice in channel F – to the active area	F**
15	Without orifice	no code
	With orifice in channel Z1 – ➁ (not with version "X" and "Y")	D**
16	Without orifice	no code
	With orifice in channel Z1 – ➀	Z**
17	Without orifice	no code
	With orifice in channel Y – ➀	Y**
18	Without orifice	no code
	With orifice in channel Z1 – ➁ (not with version "X" and "Y")	S**
19	Without orifice	no code
	With orifice in channel Z2 – ➀	W**
20	Without orifice	no code
	With orifice in channel X – ➁ (not with version "Z1", "Z2" and "U")	H**
21	Without orifice	no code
	With orifice in channel Y – ➁ (not with version "Z1", "Z2" and "U")	L**
Corrosion resistance
22	None	no code
	Improved corrosion protection (240 h salt spray test according to EN ISO 9227)	J3
Seal material 7)
23	FKM seals (preferred)	F
	NBR seals (see technical data)	N
	H-ECOPUR seals (with version "450")	P
24	Further details in the plain text	*

1)	For structural-inherent reasons, the active surface (A4) can only be combined with one of the two pilot oil pairs "Z1/Z2" or "X/Y". Any subsequent change from "Z1/Z2" to "X/Y" is only possible with NG125.
2)	BG certificate, see electrical connection
3)	Not for NG16, 25 and 32
4)	Only with version "G08". Evaluation electronics designed and approved of for NAMUR interfaces are standard.
5)	Mating connectors, separate order, see "Accessories"
6)	Only with type LC2A . D40E-1X/… for "check valve function"; the maximum pilot oil bore Ø has been determined according to thesize.
7)	The selection of the seal material depends on the operating parameters (fluid, temperature, etc.)

➀ = component side

➁ = plate side

Order example orifice fitting:

• ** = dimension in mm x 10 – e.g. orifice Ø1.2 mm in channel X – ① = "X12"

• “99” = blanking plug e.g. blanking plug in channel Z2 – ① = “W99”

Technical data

general

Size		16	25	32	40	50	63	80	100	125
Ambient temperature range	°C	-20 … +80
MTTFD values according to EN ISO 13849 1)	Years	150

1)	For further details, see data sheet 08012

hydraulic

Size		16	25	32	40	50	63	80	100	125
Maximum operating pressure	bar	450
Maximum flow 1)	l/min	17000
Hydraulic fluid		see table
Hydraulic fluid temperature range	°C	-20 … +80
Viscosity range	mm²/s	2.8 … 500
Maximum admissible degree of contamination of the hydraulic fluid 2)		Class 20/18/15 according to ISO 4406 (c)

1)	Measured with p = 10 bar; if functionally higher Δp values are admissible, higher flows are possible, as well.
2)	The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter.

Hydraulic fluid		Classification	Suitable sealing materials	Standards	Data sheet
Mineral oils		HL, HLP	NBR, FKM, H-ECOPUR	DIN 51524	90220
Bio-degradable 1)	Insoluble in water	HETG	FKM, H-ECOPUR	ISO 15380	90221
		HEES	FKM, H-ECOPUR
	Soluble in water	HEPG	FKM	ISO 15380
Flame-resistant	Water-free	HFDU (glycol base)	FKM, H-ECOPUR	ISO 12922	90222
		HFDU (ester base)	FKM, H-ECOPUR
		HFDR	FKM
	Containing water 1)	HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620)	NBR	ISO 12922	90223
Important information on hydraulic fluids: For further information and data on the use of other hydraulic fluids please contact us. There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.). Flame-resistant – containing water: Life cycle as compared to operation with mineral oil HL, HLP 30 … 100% Maximum hydraulic fluid temperature 60 °C Bio-degradable and flame-resistant: If this hydraulic fluid is used, small amounts of dissolved zinc may get into the hydraulic system.

1)	Not recommended for corrosion-protected version "J3" and "J5" (contains zinc)

Size of the annulus area
Surface in cm2	Type	Size
		16	25	32	40	50	63	80	100	125
A1	LC2A . A...	1,89	4,26	6,79	11,1	19,63	30,02	37,9	63,6	–
	LC2A . B...	2,66	5,73	9,51	15,55	26,42	41,28	52,8	89,1	133,7
	LC2A . D...	2,84	6,16	10,18	16,62	28,27	44,2	56,74	95,0	–
A2	LC2A . A...	0,95	1,89	3,39	5,52	8,64	14,0	18,84	31,4	–
	LC2A . B...	0,18	0,43	0,67	1,07	1,85	2,90	3,94	5,9	9,3
	LC2A . D...	–	–	–	–	–	–	–	–	–
A3	LC2A . A/B/D...	2,84	6,16	10,18	16,62	28,27	44,2	56,74	95	143
A4		0,62	1,39	2,39	3,81	5,94	8,75	11,2	19,1	22,0
A5		3,46	7,55	12,6	20,4	34,2	52,8	67,9	114,0	165
Area ratio A5 : A4 2)		5,58	5,43	5,27	5,35	5,76	6,03	6,06	5,97	7,5

	2) When determining the nozzle diameters for influencing the switching time, please observe the area ratio A5 : A4 (inflowing and outflowing hydraulic fluid in the control chambers A5 and A4)
	In case of non-compliance, pressure conversion can be applied!

Control spool form
		Type	Size
			16	25	32	40	50	63	80	100	125
Stroke	cm	LC2A . ..E...	0,9	1,17	1,4	1,7	2,1	2,3	2,4	3,0	‒
		LC2A . ..D...	0,9	1,17	1,4	1,9	2,3	2,8	3,0	3,8	4,8
		LC2A . ..F...	0,9	1,17	1,4	1,9	2,3	2,8	3,0	3,8	4,8
Pilot volume	cm3	LC2A . ..E...	3,1	8,8	17,6	34,7	71,8	121,4	163,0	339,0	‒
		LC2A . ..D...	3,1	8,8	17,6	34,8	78,7	147,8	203,7	429,4	792
		LC2A . ..F...	3,1	8,8	17,6	34,8	78,7	147,8	203,7	429,4	792
Theoretical pilot flow 3)	l/min	LC2A . ..E...	3,7	10,6	21,1	41,6	86,6	145,7	195,6	406,8	‒
		LC2A . ..D...	3,7	10,6	21,1	46,6	94,4	177,4	244,4	515,3	950,4
		LC2A . ..F...	3,7	10,6	21,1	46,6	94,4	177,4	244,4	515,3	950,4
Weight	kg	LC2A ...	2,2	2,6	3,9	10,3	16,5	30,5	52,5	92,0	167

Cracking pressure in bar
	Type	Size
		16	25	32	40	50	63	80	100	125
Direction of flow A to B 4)	LC2A . A...	3,50	3,90	3,80	4,0	4,11	3,8	3,13	3,04	‒
	LC2A . B...	2,48	2,90	2,70	2,86	3,05	2,8	2,25	2,17	1,45
Direction of flow B to A 4)	LC2A . A...	6,96	8,74	7,6	8,05	9,34	8,15	6,3	6,2	‒
	LC2A . B...	36,6	38,3	38,6	41,5	43,6	39,4	30,2	32,5	20,7
Control open with active area	Version "40"	>30
	Without spring	>12

	3) Quantity indications refer to a theoretical switching time of t = 50 ms (control chamber A5)
	4) With direction of flow B → A, the control spool version "D" (“0 %") has no directly effective control open area (A2 = 0). For this direction of flow, the active area is to be controlled. A minimum pressure of 30 bar is recommended. The cracking pressure of the control spool version "D" almost corresponds to version "B" (A → B)

(For applications outside these values, please consult us!)

Diagrams/characteristic curves

(simulated with HLP46, ϑÖl = 40±5 °C)

without damping nose "E", direction of flow A → B

without damping nose "E", direction of flow A → B

without damping nose "E", direction of flow A → B

Notice:

The specified characteristic curves were simulated with 100% spool stroke and an aligned socket (see sketch under recommended socket alignment). The simulation results were validated by measurement results. The basis was an installation geometry with ØD3* (see installation under dimensions) and a simulation model according to ISO 4411/2008-10-01.

Recommended socket alignment:

without damping nose "E", direction of flow B → A

without damping nose "E", direction of flow B → A

without damping nose "E", direction of flow B → A

Notice:

The specified characteristic curves were simulated with 100% spool stroke and an aligned socket (see sketch under recommended socket alignment). The simulation results were validated by measurement results. The basis was an installation geometry with ØD3* (see installation under dimensions) and a simulation model according to ISO 4411/2008-10-01.

with damping nose “D”, direction of flow A → B

with damping nose “D”, direction of flow A → B

with damping nose “D”, direction of flow A → B

Notice:

The specified characteristic curves were simulated with 100% spool stroke and an aligned socket (see sketch under recommended socket alignment). The simulation results were validated by measurement results. The basis was an installation geometry with ØD3* (see installation under dimensions) and a simulation model according to ISO 4411/2008-10-01.

with damping nose "D", direction of flow B → A

with damping nose "D", direction of flow B → A

with damping nose "D", direction of flow B → A

Notice:

The specified characteristic curves were simulated with 100% spool stroke and an aligned socket (see sketch under recommended socket alignment). The simulation results were validated by measurement results. The basis was an installation geometry with ØD3* (see installation under dimensions) and a simulation model according to ISO 4411/2008-10-01.

with overlap “F”, direction of flow A → B

with overlap “F”, direction of flow A → B

with overlap “F”, direction of flow A → B

Notice:

The specified characteristic curves were simulated with 100% spool stroke and an aligned socket (see sketch under recommended socket alignment). The simulation results were validated by measurement results. The basis was an installation geometry with ØD3* (see installation under dimensions) and a simulation model according to ISO 4411/2008-10-01.

with overlap "F", direction of flow B → A

with overlap "F", direction of flow B → A

with overlap "F", direction of flow B → A

Notice:

The specified characteristic curves were simulated with 100% spool stroke and an aligned socket (see sketch under recommended socket alignment). The simulation results were validated by measurement results. The basis was an installation geometry with ØD3* (see installation under dimensions) and a simulation model according to ISO 4411/2008-10-01.

Inductive sensor with analog output type Q9

Notice:

The maximum sensor voltage US with 100% stroke is size- and/or tolerance-dependent and may range between 7 and 9 V DC. The inductive sensor is adjusted so that with 0% stroke, an output voltage of 1 V DC is available.

for orifice selection

Orifices

Orifice Ø in mm	Order numbers	Material numbers
		M6 conical	M8 x 1 conical	G 1/8 conical	G 1/4 conical	G 3/8 conical	G 1/2 conical	G 1 conical
–	00	–	–	–	–	–	–	–
0,5	05	R913040356	R913017600	R913030187	R913040456	–	–	–
0,6	06	R913040358	R913017605	R913017606	R913020197	–	–	–
0,7	07	R913040360	R913017609	R913046092	–	–	–	–
0,8	08	R913029447	R913017614	R913017616	R913017615	R913040481	R913040499	–
1,0	10	R913019186	R913017621	R913024679	R913017622	R913040484	R913040500	–
1,2	12	R913040362	R913017627	R913017629	R913017628	R913040486	R913040501	–
1,5	15	R913028337	R913017637	R913017639	R913017638	R913040488	R913028317	–
1,8	18	R913030186	R913017644	R913017646	R913017645	R913040489	R913045913	–
2,0	20	R913029870	R913017651	R913040450	R913017652	R913028417	R913028336	–
2,5	25	R913032543	R913035796	R913017656	R913019582	R913040493	R913040502	–
3,0	30	R913040368	R913017661	R913017663	R913017662	R913018266	R913040503	R913040467
3,5	35	–	R913017667	R913040452	R913040463	R913028318	R913019856	R913040469
4,0	40	–	R913017670	R913027078	R913040464	R913018265	R913029168	R913040470
4,5	45	–	R913046571	R913017671	R913040465	–	R913040506	–
5,0	50	–	–	R913017673	R913040468	R913023871	R913019857	R913040471
5,5	55	–	–	R913027077	–	R913040495	R913053659	–
6,0	60	–	–	–	–	R913023870	R913028418	R913020247
7,0	70	–	–	–	R913040461	R913017675	R913040509	–
7,5	75	–	–	–	–	R913023430	–	R913018328
8,0	80	–	–	–	–	R913046570	R913040510	R913020246
closed	99	R913019128	R913019129	R913019137	R913019136	R913019138	–	R913019140

Plug screws
Thread	Tightening torque MA in Nm ±10 %
	420 bar	450 bar
G 1/8	12	18
G 1/4	30	45
G 3/8	55	83
G 1/2	80	120
G 3/4	135	175
G 1	225	270

Symbols/Circuit diagrams

Examples of control spool forms and circuitries of the active area

➀ = component side

➁ = plate side

Type LC2A . B40E-1X/Z1...

Type LC2A . A40D-1X/Z1Q7G24…

Type LC2A . B40D-1X/Z2…

Type LC2A . A40D-1X/YQ7G24…

Type LC2A . D40D-1X/X…

Type LC2A . D40E-1X/Z1..A…

Assignment of the "active area" A4

Type LC2A …-1X/Z1…

(F1 not fitted)

Type LC2A …-1X/Z2 …

(F2 not fitted)

Type LC2A …-1X/U …

(F1 and F2 not fitted)

Type LC2A …-1X/Y …

(F2 not fitted)

Type LC2A …-1X/X …

(F1 not fitted)

For details regarding the "open" or "closed" circuitry of channels F1 and F2 (control of the active area) refer to "Dimensions" and "Ordering code".

Depending on the "Active area" ordering code, the number of possible orifice fittings is different in the continuous pilot oil guides, see "Orifice assignments" below.

Orifice assignment

Orifice fitting of the pilot oil guides in the cover

The fitting and assignment of the "active area" is not shown here (see "Assignment of the active area")

For details on the dimensions of the orifice installation bores "X" to "L", see "Dimensions".

On the component side, the orifice installation bores are always completely available; on the plate side, only the combinations of versions "H" and "L" or "D" and "S" are possible, see "Ordering code".

Notice:

With control channels that are not required, you must either use a blanking plug ".99" or the corresponding cover.

Circuit examples (schematic diagram, function must be checked with the application)

Notice:

It has to be ensured that pilot oil ports that are not required (blanking plugs) and all pressurized transitions between LFA and LC2A (R-rings) are sealed. This is particularly true for variants marked with *.

Check valve, releasable

Function "closing pressure-supported by excess area" (e.g. with control cover type "D")

"Passive logics with piston seal and spool position monitoring" function (Closing with spring force without excess area; here with control cover type "D")

ideal for retrofitting of existing circuits

"Self-closing" or "open basic position" (e.g. with control cover type "WEMA")

1)	Pilot pressure

Control spool remains open as long as FZ2 ≥ FA + 30 bar

In case of failure or drop of the pilot pressure, the logic element closes hydraulically. Irrespective thereof, the logic element can be opened by unloading the spring chamber (minimum pilot pressure required).

"Pulling" and "Safe keeping closed" function

1)

Consumer

The control spool of the active logics can be opened or closed depending on the two pilot oil pressures X and Z2. Thus, free flow is possible in both directions, irrespective of the pressure level in port B.

"Passive logics with piston seal" function, spool position monitoring and stroke limitation

Advantages:

• Retrofitting for existing installation using the existing control cover type LFA and pilot control valves

• Leakage-free locking

• Position monitoring

• Shortened closing time

"Closed basic position" function; safe locking, increased closing force

Advantages:

• "Safe locking" in both directions

• Control spool cannot be controlled open from side B (version "...D.E...")

• Position switch retrofittable

• Shortened switching time

Advantages:

• Leakage-free separation of the two pilot pressures “X” and “Z1”

• Function of a hydraulic detent (“Keeping open”, also in case of pilot pressure failure)

• Permits complete pressure compensation of both main ports

"Check valve" and "Safe locking" function; increased closing force

Advantages:

• Leakage-free locking

• Increased closing force (shortened closing time)

“Check valve” (releasable) and “Safe locking” function; “Keeping open” additional function

Advantages:

• "Safe locking" in both directions

• Check valve function that can be switched off

• Leakage-free locking

• Monitoring of the open and closed position

"Check valve circuit" function, self-locking, fast-closing

Advantages:

• Maximum load pressure in channel A 500 bar (condition: maximum pressure in channel B 250 bar)

• Very fast closing by internal spring chamber filling (e.g. NG63 < 20 ms)

• High locking force

• Analog position sensing (optional)

“Separation between both pilot pressures and hydraulic keeping open in case of pilot pressure failure” function

Electrical connection

Inductive position switch type Q7

The electrical connection is realized via a 4-pole mating connector with connection thread M12 x 1 (separate order). The inductive position switch can be connected as normally closed or normally open contact.

Features:

• Adjustment-free assembly due to fixed stop

• Certification according to CE and cULus

Connection voltage		V	12 ... 30
Admissible residual ripple		%	< 15
Load capacity		mA	200
Tightening torque MA		Nm	10
			+ 5 Nm
Switching outputs			PNP transistor outputs, load between switching outputs and GND
Pinout	1		+UB
	2		Normally closed contact
	3		L0
	4		Normally open contact

Notes:

• The "closed" spool position is adjusted to and optimized for a condition at operating temperature. Considerably deviating operating temperatures thus influence the absolute switching position as well as its hysteresis.

• The position switch type Q7 has no connection for protective earthing conductors!

• Assembly tool for position switch type Q7 or blind plug upon request.

• BG certificate (only size 16 … 100 and valve poppet version "D" and "F"): The respectively valid "MHHW 10014" certificate for using the active logics type LC2A with position switch type Q7 in hydraulic security locks in injection molding machines according to the manufacturer's installation instructions is available upon request.

Inductive position switch type Q8

The electrical connection is realized via a 4-pole mating connector with connection thread M12 x 1 (separate order).

Features:

• Certification according to CE

• Explosion protection according to Ex II 2G Ex ia IIC T6

• Use not with version "450"

Connection voltage (DC voltage)		V	8.2
			+9 %/-6 %
Maximum current consumption, dampened:		mA	1
Maximum current consumption, not dampened:		mA	4
Tightening torque MA		Nm	10
		Nm	+ 5
Switching outputs			NAMUR evaluation electronics necessary
Pinout	1		Current source
	2		-
	3		0 V, GND
	4		-

Inductive sensor with analog output type Q9

The electrical connection is realized via a 4-pole mating connector with connection thread M12 x 1 (separate order).

Features:

• Certification according to CE

Connection voltage		V	15 ... 30
Admissible residual ripple		%	< 15
Tightening torque MA		Nm	10
			+ 5 Nm
Analog output:			Load resistance ≥ 2 kΩUS = 1 ... 9 V DC (in the installed, adjusted condition)Notice:The maximum sensor voltage US with 100% stroke is size- and/or tolerance-dependent and may range between 7 and 9 V DC. The inductive sensor is adjusted so that with 0% stroke, an output voltage of 1 V DC is available.
Pinout	1		+UB
	2		-
	3		L0
	4		0 … 10 V DC

Switching point behavior and overlap: Valve poppet with damping nose "D" or overlap nose "F" and position overlap "closed"

h	Overlap stroke (mechanical)
s	Switching point window (electrical)
qv0	Maximum flow until hmin

Characteristic curve position switch type Q7

Dimensions

NG16 ... 63

With spool position monitoring (1 position switch "Q7", position monitoring "closed")
(with version "450" only with pilot oil bore "Z1" and "Z2")
Dimensions in mm

1	Name plate
1.1	Name plate NG16 and 25
2	Position switch (optional) or blind plug
3	Mating connector (separate order)
4	Space required to remove the mating connector
5	Sealing by the factory
6	Transport lock for control spool (marking K). Don't remove! Loosening or disassembly and assembly only admissible in case of service/repair!
7	Standard end/control cover type LFA... (separate order, depends on the basic hydraulic function)
8	Valve mounting screws (separate order, see table)

NG	L1	L2	L3	L4	L5	L6	L7 1)	H1	H2	ØD1	ØD2	ØD3
	mm	mm	mm	mm	mm	mm	mm	mm	mm			mm	mm
16	80	67	15	7	34.5	45.5	5 10	40	11.5	M6	G 1/8	8.5
25	85	67	9.5	10	37	48	5 10	40	11.5	M6	G 1/8	13.5
32	100	65	2	7	45	55	5 10	50	13.5	M8 x 1	G 1/8	19
40	125	58	-	-	56	69	5 11	80	29.5	G 1/8	G1/4	22
50	140	58	-	-	63.5	63.5	5 11	100	42.5	G 1/8	G1/4	24
63	180	45	-	-	82.5	82.5	5 11	110	45.5	G1/4	G3/8	26	+ 1

1)	Version "450"

NG16 … 32

With spool position monitoring (2 position switches “Q7”, position monitoring “closed”)
(not with version "450")
Dimensions in mm

1.1	Name plate NG16 and 25
1.2	Name plate NG32 … 63
2	Position switch (optional) or blind plug
3	Mating connector (separate order)
4	Space required to remove the mating connector
5	Sealing by the factory
6	Transport lock for control spool (marking K). Don't remove! Loosening or disassembly and assembly only admissible in case of service/repair!
7	Standard end/control cover type LFA... (separate order, depends on the basic hydraulic function)
8	Valve mounting screws (separate order, see table)

NG	L1	L2	L3	L5	L6	H1	H2	ØD1	ØD2	ØD3
	mm	mm	mm	mm	mm	mm	mm			mm
16	80	67	15	34.5	45.5	40	11.5	M6	G 1/8	8.5
25	85	67	9.5	37	48	40	11.5	M6	G 1/8	13.5
32	100	65	2	45	55	50	13.5	M8 x 1	G 1/8	19

NG40 … 63

With spool position monitoring (2 position switch "Q7", position monitoring "closed" and "open")
(not with version "450")
Dimensions in mm

1	Name plate
2	Position switch (optional) or blind plug
2.1	Position switch "open" ("Q7T")
3	Mating connector (separate order)
4	Space required to remove the mating connector
5	Sealing by the factory
6	Transport lock for control spool (marking K). Don't remove! Loosening or disassembly and assembly only admissible in case of service/repair!
7	Standard end/control cover type LFA... (separate order, depends on the basic hydraulic function)
8	Valve mounting screws (separate order, see table)

NG	L1	L2	L5	L6	H1	H2 1) 2)	ØD1	ØD2	ØD3
	mm	mm	mm	mm	mm	mm			mm	mm
40	125	58	56	69	80	29.5 23	G 1/8	G1/4	22
50	140	58	63.5	63.5	100	42.5 35	G 1/8	G1/4	24
63	180	45	82.5	82	110	45.5 36	G1/4	G3/8	26	+ 1

1)	Position monitoring "closed"
2)	Position monitoring "open"

NG80 … 125

With spool position monitoring (1 position switch "Q7", position monitoring "closed")
(version "450" only up to NG100 and pilot oil bore "Z1" and "Z2")
Dimensions in mm

1	Name plate
2	Position switch (optional) or blind plug
3	Mating connector (separate order)
4	Space required to remove the mating connector
5	Sealing by the factory
6	Transport lock for control spool (marking K). Don't remove! Loosening or disassembly and assembly only admissible in case of service/repair!
7	Standard end/control cover type LFA... (separate order, depends on the basic hydraulic function)
8	Valve mounting screws (separate order, see table)

NG	ØD1	ØD2	ØD3 1)	ØD4		ØD5	L1	L2	H1	H2
					mm	mm	mm	mm	mm	mm
80	G1/2	G1/2	G1 G3/4	26	+ 1	250	37 -	5 1) 13 1)	120	48
100	G1/2	G1/2	G1 G3/4	33	+ 0.5	300	26 -	5 1) 13 1)	140	55.2
125	G3/4	G1/2	G3/4 -	40		380	- -	5 -	160	65.2

1)	Version "450"

NG80 … 125

With spool position monitoring (2 position switch "Q7", position monitoring "closed" and "open")
(not with version "450")
Dimensions in mm

1	Name plate
2	Position switch (optional) or blind plug
2.1	Position switch "open" ("Q7T")
3	Mating connector (separate order)
4	Space required to remove the mating connector
5	Sealing by the factory
6	Transport lock for control spool (marking K). Don't remove! Loosening or disassembly and assembly only admissible in case of service/repair!
7	Standard end/control cover type LFA... (separate order, depends on the basic hydraulic function)
8	Valve mounting screws (separate order, see table)
9	Connection possibility for a 3rd position switch "closed"(optional, only NG125)

NG	ØD1	ØD2	ØD3	ØD4		ØD5	L1	H1	H2 1) 2)
					mm	mm	mm	mm	mm
80	G1/2	G1/2	G1	26	+ 1	250	37 -	120	48 37.3
100	G1/2	G1/2	G1	33	+ 0.5	300	26 -	140	55.2 44.7
125	G3/4	G1/2	G3/4	40		380	- -	160	65.2 54.5

1)	Position monitoring "closed"
2)	Position monitoring "open"

Valve mounting screws (separate order)
NG	Control cover type LFA		Hexagon socket head cap screws ISO 4762-10.9-flZn
	420 bar	450 bar	Quantity	Dimensions	Material number (preferred)	Tightening torque MA2) in Nm ±10 %
						420 bar	450 bar
16	1)	D, H	4	M8 x 80	R913015803	30
	WE., GW.	KWMA		M8 x 85	R913004145
	–	WEM., GWMA20		M8 x 95	R913015806
	WEM.	–		M8 x 110	R913015792
	HWM.	HWM.		M8 x 140	R913018191
25	1)	D, H, WEM., KWMA	4	M12 x 90	R913015617	100	90
	–	GWMA20		M12 x 130	R913015591
	HWM.	HWM.		M12 x 140	R913015593
32	1)	D, WEM, KWMA	4	M16 x 110	R913015642	240	220
	H3, H4	–		M16 x 120	R913014711
	H1, H2	H1, H2		M16 x 130	R913014713
	–	GWMA20		M16 x 140	R913015591
	HWM.	HWM.		M16 x 160	R913015647
40	1)	D, WEM, KWMA	4	M20 x 150	R913015676	480	430
	–	GWMA20		M20 x 180	R913014714
	H., HWM.	H., HWM.		M20 x 190	R913015680
50	1)	D, WEM, KWMA, GWMA20	4	M20 x 180	R913014714	480	430
	H., HWM.	H., HWM.		M20 x 220	R913014716
63	1)	D, WEM, KWMA, GWMA20	4	M30 x 210	R913015754	1600	1500
	H., HWM.	H., HWM.		M30 x 260	R913015758
80	1)	D, WEM, GWMA20	8	M24 x 220	R913015719	800	750
	H2, H4	H., KWMA		M24 x 240	R913015721
100	D, WE.	D, GWMA20, KWMA	8	M30 x 260	R913015758	1600	1500
	1)	H.		M30 x 280	R913015760
125	H., WEM, WE, D	–	8	M36 x 320	R913050473	2300	–

1)	More available series control covers
2)	Calculated with total friction coefficient μ = 0.09 ... 0.14, adjust incase of modified surfaces

Notice!

The length of the valve mounting screws of the active logics (intermediate cover) must be selected according to the related control cover type LFA....

Screw type, screw length and tightening torque are to be adjusted to the conditions depending on the application.

For reasons of stability, exclusively the following valve mounting screws may be used:

Installation bore and connection dimensions according to ISO 7368

Dimensions in mm

Required surface quality of the valve contact surface

1	Depth of fit
2	Port B may be positioned around the central axis of port A. However, it must be observed that the mounting bores and the pilot oil bores are not damaged.

NG16 ... 63

Dimensions in mm

1	Bore for locating pin

NG80 and 100

Dimensions in mm

1	Bore for locating pin

NG125

Dimensions in mm

1	Bore for locating pin

Notes:

• All information on the mounting bore D5 is based on the use of hexagon socket head cap screws according to ISO 4762.

• Installation see assembly instructions 21040-MON.

NG	ØD1H7	ØD2	ØD3/ØD3* 1)	ØD4H7	ØD5	ØD6	ØD7H13	H1	H2		H3		H4	H5	H6		H7	H8		H9	L1	L2	L3	L4	L5	Ro 2)	Ru 2)
	mm	mm	mm			mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm
16	32	16	16 25	25	M8	4	4	42.5	56	+ 0.1	43	± 0.2	20	11	2		20	2		0.5	80 -	46 -	23	25	10.5	2	1
25	45	25	25 32	34	M12	6	6	57	72	+ 0.1	58	± 0.2	25	12	2.5		30	2.5		1	85 -	58 -	29	33	16	2	1
32	60	32	32 40	45	M16	8	6	68.5	85	+ 0.1	70	± 0.2	35	13	2.5		30	2.5		1.5	102 -	70 -	35	41	17	2	1
40	75	40	40 50	55	M20	10	6	84.5	105	+ 0.1	87	± 0.3	45	15	3		30	3		2.5	125 -	85 -	42.5	50	23	4	1
50	90	50	50 63	68	M20	10	8	97.5	122	+ 0.1	100	± 0.3	45	17	3		35	4		2.5	140 -	100 -	50	58	30	4	1
63	120	63	63 80	90	M30	12	8	127	155	+ 0.1	130	± 0.3	65	20	4		40	4		3	180 -	125 -	62.5	75	38	4	1
80	145	80	80 100	110	M24	16	10	170.5	205	+ 0.1	175	± 0.4	50	25	5		40	5		4.5	250 -	200 -	-	-	-	4	1
100	180	100	100 125	135	M30	20	10	205.5	245	+ 0.1	210	± 0.4	63	29	5		50	5		4.5	300 -	245 -	-	-	-	4	1
125	225	150	125 160	200	-	-	-	255	300	+ 0.15	257	± 0.5	-	31	7	± 0.5	50	5.5	± 0.2	2	- -	- -	-	-	-	4	1

1)	Due to the use of a bore with ØD3*, port B protrudes over the upper limit of the area intended in ISO 7368. This is, however, possible due to the sealing concept and reduces the pressure loss during flow through the valve. Thus, we recommend a bore with ØD3*.
2)	Maximum dimension

Accessories

Mating connectors for sensors and valves with connector “K24”, “K35” and “K72”, M12 x 1

4P Z24

Mating connectors for sensors and valves with connector “K24”, “K35” and “K72”, M12 x 1

4P Z24

• For sensors and valves with connector “K24”, “K35” and “K72”
• Mating connectors M12, 4-pole, line cross-section 0.75 mm2

• Data sheet

• Spare parts and repair

Downloads

	2-way cartridge valve, actively controllable Data Sheet | RE21040 | 2017-05-01 | English | PDF | 1.1MB Product Groups: Logic elements - directional function Type LC2A
	2-way cartridge valve, actively controllable, Type LC2A016...125, Mounting instructions Manual | RE21040-MON | 2016-11-01 | English | PDF | 1.6MB Product Groups: Logic elements - directional function