Diaphragm type accumulators HAD

Description

• Component series 1X and 2X
• Nominal capacity 0.075 … 3.5 l
• Maximum operating pressure 250 bar

Features

• Hydro-pneumatic accumulator for use in mobile machines and stationary machinery and systems
• Use:
  – Energy storage in intermittent operation systems
  – Energy reserve for emergencies
  – Impact and vibration absorption
  – Volume compensation in case of pressure and temperature change
• Approval:
  – according to PED 2014/68/EU
  – according to TR CU 032/2013

Product description

Function, section, symbol

General information

One of the main tasks of hydro-pneumatic accumulators is e.g. to accept certain volumes of pressurized liquids of hydro-pneumatic installations and to return them to the system if required.

As the liquid is pressurized, the hydro-pneumatic accumulators are treated like pressure vessel and must be designed for the max. operating over pressure considering the acceptance standards of the country of installation.

In most hydro-pneumatic systems, hydro-pneumatic accumulators with separator element are used. The difference between bladder-type, piston and diaphragm-type accumulators lies in the type of separator element.

Hydro-pneumatic accumulators essentially consist of a fluid section and a gas section with a gas-tight separator element. The fluid section has a connection to the hydraulic circuit. During the pressure increase, the gas is compressed and liquid accepted in the hydro-pneumatic accumulator. When the pressure decreases, the compressed gas expands and displaces the accumulated fluid into the circuit.

Diaphragm type accumulator

Diaphragm-type accumulators consist of a pressureresistant steel vessel (1) which most commonly has a spherical to cylindrical form. Inside the accumulator, there is the separator element, namely a diaphragm (2) made of an elastic, flexible material (elastomer) with the closing button (3) and the plug screw (4). They correspond to Pressure Equipment Directive 2014/68/EU.

1	Containers
2	Diaphragm
3	Closing button
4	Plug screw (gas filling screw)
5	Fluid connection

Symbol

Type code

Ordering code

01	02		03		04		05	06	07		08	09	10	11	12		13		14
HAD		-		-		/				-			1	1	1	-		-

Device designation
01	Diaphragm type accumulators													HAD
Nominal capacity
02			0,075	0,16	0,35	0,5	0,6	0,7	1,0	1,4	2,0	2,8	3,5
Maximum operating pressure
03	70 bar											○		70
	100 bar							○			○			100
	140 bar									○				140
	160 bar				○	○								160
	180 bar							○						180
	200 bar								○					200
	210 bar				○			○						210
	250 bar		●	●	●	●		●	●	●	●	●	●	250
	330 bar						●							330
	350 bar							○		○	○	○	○	350
Component series
04	Component series 10 … 19 (only with these nominal volume/pressure combinations)		250	250	160 210 250	160	330	100 180 210 250	200 250	140 250	100 250	70 350	350	1X
	Component series 20 … 29 (only with these nominal volume/pressure combinations)					250		350		350	350	250	250	2X
Preload pressure
05	0 bar		●	●	●	●	●	●	●	●	●	●	●	0
	1 ... 250 bar		○	○	○	○	○	○	○	○	○	○	○	1 ... 250
Port size for hydraulic fluid 1)
06	M14x1.5		○											Z04
	M18x1.5			○	○	○		○		○				Z06
	M22x1.5								○	○	○	○		Z08
	G1/2		●	●	●	●	●	●	●	●	○	○		G04
	G3/4										●	●	●	G05
Type of mounting (oil port form) 1)
07	Mounting cavity				○	○		○						A
	Mounting cavity with external hexagon		●	●	●	●	●	●	●	●	●	●	●	C
	Screw-in stud		○	○										F
	Screw-in stud M33x1.5 with internal thread							○	○	○				E
	Screw-in stud M45x1.5 with internal thread										○	○	○	E5
Gas port form 1)
08	Standard		●	●	●	●	●	●	●	●	●	●	●	1
	Cannot be refilled, welded on the gas side		○											4
Diaphragm material
09	NBR		●	●	●	●	●	●	●	●	●	●	●	N
	ECO			○	○	○		○	○	○		○	○	E
Tank material
10	Steel		●	●	●	●	●	●	●	●	●	●	●	1
Surface of the tank inside
11	Steel		●	●	●	●	●	●	●	●	●	●	●	1
Surface of the connection side
12	Steel		●	●	●	●	●	●	●	●	●	●	●	1
Certification (acceptance) 2)​
13	Operating instructions	EU	●	●	●	●	●	●	●					BA
	PED 2014/68/EU	EU								●	●	●	●	CE
	Operating instructions and TR CU 032/2013	EU + Eurasian customs union	○	○	○	○	○	○	○					BA+ EAC
	TR CU 032/2013	EU + Eurasian customs union								○	○	○	○	CE+ EAC
Additional details
14	Further details in the plain text, e.g. special versions													*
●	Preferred program
○	Delivery range
	Upon request

1)	Other ports upon request
2)	Other certifications upon request

Technical data

general

Design		Diaphragm type accumulator, welded
Installation position		Any, preferably with the fluid connection socket at the bottom
Mounting type		With clamps or via stud end connectors
Ambient temperature range	°C	-15 … +65
Line connection		Screw-in thread
Surface		Painted, color glossy black

hydraulic

Nominal capacity	VNenn	l	0.075	0.16	0.35	0.5	0.6	0.7	1	1.4	2	2.8	3.5
Effective gas volume	Veff	l	0.075	0.16	0.32	0.48	0.6	0.75	1	1.4	1.95	2.7	3.5
Maximum flow	qmax	l/min	10	10	40	40	40	40	40	40	60	60	60
Maximum operating pressure	pmax	bar	-	-	-	-	-	100	-	-	100	70	-
		bar	-	-	160	160	-	180	-	140	-	-	-
		bar	-	-	210	207	330	210	200	-	-	-	-
		bar	250	250	250	250	-	250	250	250	250	250	250
		bar	-	-	-	-	-	350	-	350	350	350	350
Maximum admissible pressure fluctuation range	Δpdyn	bar	-	-	-	-	-	50	-	-	-	50	-
		bar	-	-	90	90	-	93	-	-	-	-	-
		bar	-	-	120	-	-	93	115	-	-	-	-
		bar	140	140	120	90	140	140	140	140	140	140	140
		bar	-	-	-	-	-	140	-	140	140	140	140
Hydraulic fluid 1)			Hydraulic oil according to DIN 51524
Hydraulic fluid temperature range 1)	NBR	°C	-10 … +80
	ECO	°C	-35 … +80

1)	Other hydraulic fluids upon request.

pneumatic

Charging gas		Nitrogen only, at least cleanliness class 4.0, use N2 = 99.99 vol. %!
Gas filling pressure 1)	p0	See preferred types, chapter "Dimensions"

1)	at 20 °C room temperature

Usable hydraulic fluids

Hydraulic fluid	Material
Mineral oils	NBR 1) ECO 2)​
HFC	NBR 1)

1)	Acrylonitrile butadiene rubber
2)	Epichlorohydrin rubber

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

Diagrams/characteristic curves

Calculation

Pressures

For the calculation of an accumulator, the following pressures are of significance:

p0 = gas precharge pressure (at room temperature and drained fluid chamber)

p0T = gas precharge pressure (at operating temperature)

p1 = minimum operating pressure

p2 = maximum operating pressure

tmax = maximum operating temperature

To achieve the best possible utilization of the accumulator capacity and a long service life, it is recommended that the following values be adhered to:

p0, tmax ≈ 0,9 p1 (1)

The highest hydraulic pressure should not exceed the quadruple of the precharge pressure; otherwise, the elasticity of the diaphragm is overstressed and excessive variations in the compression result in strong heating up of the gas.

The smaller the difference between p1 and p2 the longer is the service life of the diaphragm. However, this also reduces the degree of utilization of the corresponding maximum accumulator capacity.

Diaphragm-type accumulators

p2 ≤ 4 • p0 (2)

On request

p2 ≤ 8 • p0

Note!

To achieve an increased pressure ratio (p0:p2 > 1:4) in the accumulator, a filling piece can be installed on the gas side of the accumulator.

This reduces the usable gas volume V1, but the diaphragm is protected against impermissible deformation.

Oil volume

Pressures p0 … p2 determine gas volumes V0 … V2.

Here, V0 is also the nominal capacity of the accumulator.

The available oil volume ΔV corresponds to the difference beween gas volumes V1 and V2:

ΔV ≤ V1 - V2 (3)

The gas volume, which is variable within a pressure differential, is determined by the following equations:

• In the case of isothermal changes of state of gases, that is, when the gas buffer changes so slowly that enough time is available for a complete heat exchange between the nitrogen and its surroundings and the temperature therefore remains constant, the following is valid:

p0 • V0 = p1 • V1 = p2 • V2 (4.1)

• In the case of an adiabatic change of state, that is, with a rapid change of the gas buffer, in which the temperature of the nitrogen changes as well, the following is valid

p0 • Vχ0 = p1 • Vχ1 = p2 • Vχ2 (4.2)

χ = ratio of the specific heat of gases (adiabatic exponent), for nitrogen = 1.4

In practice, changes in state rather follow adiabatic laws. Charging is often isothermal, discharging adiabatic.

Taking account of equations (1) and (2), ΔV is 50 % to 70 % of the nominal accumulator capacity. The following can be applied as a rule of thumb:

V0 = 1.5 … 3 x ΔV

Calculation diagram

To allow a determination on the basis of a graphic representation, the formulas (4.1) and (4.2) were translated into diagrams. Depending on the task at hand, the available oil volume, the accumulator size or the pressures can be established.

Correction factors Ki and Ka

Equations (4.1) and (4.2) are only valid for ideal gases. In the characteristics of real gases, significant deviations can be observed at operating pressures above 200 bar, which must be taken into account by applying correction factors. These are shown on the following diagrams. The correction factors which are to be multiplied by the ideal withdrawal volume ΔV are within the range of 0.6 … 1.

Application of the calculation diagrams

Adiabatic ΔVreal = ΔVideal x Ka

Isothermal state changes p0 = 1 … 90 bar

Isothermal state changes p0 = 100 … 250 bar

Adiabatic state changes p0 = 1 … 90 bar

Adiabatic state changes p0 = 100 … 250 bar

Fields of application

Application, mode of operation

Applications

Various applications exist for hydro-pneumatic accumulators:

• Energy storage in order to save pump drive power in intermittent operation systems.

• Energy reserve for emergencies, e.g. upon failure of the hydraulic pump.

• Compensation of leakage losses.

• Impact and vibration absorption in case of periodic vibrations.

• Volume compensation in case of pressure and temperature changes.

• Suspension element for vehicles.

• Shock absorption with mechanical shocks.

Mode of operation

Fluids are almost incompressible and therefore cannot store pressure energy. Hydro-pneumatic Rexroth accumulators use the compressibility of a gas for fluid storage. The used nitrogen must at least comply with cleanliness class 4.0:

N2 99.99 vol. %

Dimensions

Total overview

Dimensions in mm

1	Lettering
2	Type of mounting E5
3	Type of mounting C
4	Type of mounting A
5	Type of mounting F
6	Type of mounting E

Volume/pressure/series	Port size	Mounting type	h		h1	h2		Ød		d1	d1	Ød3		SW	Weight
					min.
			mm	mm	mm	mm	mm	mm	mm			mm	mm		kg
0.075-250-1X	G04	C	110.5	± 1.5	14	-	-	64	+ 0.3	G1/2	-	29	+ 0.4	32	≈ 0.9
0.075-250-1X	Z04	F	112	± 1.5	-	12	± 0.2	64	+ 0.3	-	M14x1.5	19	± 0.2	19	≈ 0.7
0.16-250-1X	G04	C	119	± 1.5	14	-	-	75	+ 0.3	G1/2	-	29	+ 0.4	32	≈ 0.9
0.16-250-1X	Z06	F	123	± 1.5	-	12	± 0.2	75	+ 0.3	-	M18x1.5	23	± 0.2	27	≈ 0.9
0.35-160-1X	Z06	A	130	± 1.5	14	-	-	92.5	+ 0.3	M18x1.5	-	30	+ 0.4	-	≈ 1.3
0.35-160-1X	G04	A	130	± 1.5	14	-	-	92.5	+ 0.3	G1/2	-	34	+ 0.4	-	≈ 1.3
0.35-210-1X	Z06	C	136	± 1.5	14	-	-	92.5	+ 0.3	M18x1.5	-	30	+ 0.4	41	≈ 1.4
0.35-210-1X	G04	C	136	± 1.5	17	-	-	92.5	+ 0.3	G1/2	-	34	+ 0.4	41	≈ 1.4
0.35-250-1X	G04	C	141	± 1.5	17	-	-	95	+ 0.3	G1/2	-	34	+ 0.4	41	≈ 1.7
0.5-160-1X	Z06	C	149	± 1.5	14	-	-	103	+ 0.3	M18x1.5	-	30	+ 0.4	41	≈ 1.6
0.5-160-1X	Z06	A	143	± 1.5	14	-	-	103	+ 0.3	M18x1.5	-	30	+ 0.4	-	≈ 1.5
0.5-160-1X	G04	A	143	± 1.5	14	-	-	103	+ 0.3	G1/2	-	34	+ 0.4	-	≈ 1.6
0.5-250-2X	Z06	C	151	± 1.5	14	-	-	106.7	+ 0.3	M18x1.5	-	30	+ 0.4	41	≈ 2.1
0.5-250-2X	G04	C	151	± 1.5	17	-	-	106.7	+ 0.3	G1/2	-	34	+ 0.4	41	≈ 2.1
0.6-330-1X	G04	C	170	± 1.5	17	-	-	110	+ 0.3	G1/2	-	34	+ 0.4	-	≈ 2.9
0.7-100-1X	G04	C	161	± 1.5	14	-	-	117	+ 0.3	G1/2	-	34	+ 0.4	41	≈ 1.7
0.7-100-1X	G04	E	172	± 1.5	24	18	± 0.2	117	+ 0.3	G1/2	M33x1.5	39	± 0.3	41	≈ 2
0.7-180-1X	G04	C	166	± 1.5	17	-	-	121.5	+ 0.3	G1/2	-	34	+ 0.4	41	≈ 2.6
0.7-180-1X	Z06	C	166	± 1.5	14	-	-	121.5	+ 0.3	M18x1.5	-	30	+ 0.4	41	≈ 3
0.7-180-1X	Z06	A	160	± 1.5	14	-	-	121.5	+ 0.3	M18x1.5	-	30	+ 0.4	-	≈ 2.6
0.7-180-1X	G04	A	160	± 1.5	14	-	-	121.5	+ 0.3	G1/2	-	34	+ 0.4	-	≈ 2.6
0.7-180-1X	G04	E	177	± 1.5	24	18	± 0.2	121.5	+ 0.3	G1/2	M33x1.5	39	± 0.3	41	≈ 2.6
0.7-210-1X	G04	C	166	± 1.5	14	-	-	121.5	+ 0.3	G1/2	-	34	+ 0.4	41	≈ 2.6
0.7-210-1X	G04	E	177	± 1.5	24	18	± 0.2	121.5	+ 0.3	G1/2	M33x1.5	39	± 0.3	41	≈ 2.7
0.7-250-1X	G04	C	169	± 1.5	17	-	-	123.6	+ 0.3	G1/2	-	34	+ 0.4	41	≈ 3.2
0.7-250-1X	Z06	A	163	± 1.5	14	-	-	123.6	+ 0.3	M18x1.5	-	30	+ 0.4	-	≈ 2.9
0.7-250-1X	G04	A	163	± 1.5	14	-	-	123.6	+ 0.3	G1/2	-	34	+ 0.4	-	≈ 2.9
0.7-350-2X	G04	C	173	± 1.5	14	-	-	128.5	+ 0.6	G1/2	-	34	+ 0.4	41	≈ 4
0.7-350-2X	G04	E	184	± 1.5	24	18	± 0.2	128.5	+ 0.6	G1/2	M33x1.5	39	± 0.3	41	≈ 4
1,0-200-1X	G04	C	180	± 1.5	14	-	-	136.2	+ 0.3	G1/2	-	34	+ 0.4	41	≈ 3.5
1,0-200-1X	Z08	C	180	± 1.5	17	-	-	136.2	+ 0.3	M22x1.5	-	34	+ 0.4	41	≈ 3.5
1,0-200-1X	G04	E	191	± 1.5	24	18	± 0.2	136.2	+ 0.3	G1/2	M33x1.5	39	± 0.3	41	≈ 3.6
1,0-250-1X	G04	C	181	± 1.5	17	-	-	137	+ 0.3	G1/2	-	34	+ 0.3	41	≈ 3.8
1.4-140-1X	G04	C	191	± 1.5	14	-	-	147	+ 0.6	G1/2	-	34	+ 0.4	41	≈ 4.3
1.4-140-1X	G04	E	202	± 1.5	24	18	± 0.2	147	+ 0.6	G1/2	M33x1.5	39	± 0.3	41	≈ 4.2
1.4-250-1X	G04	C	195	± 1.5	14	-	-	152	+ 0.6	G1/2	-	34	+ 0.4	41	≈ 5.5
1.4-250-1X	Z08	C	195	± 1.5	14	-	-	152	+ 0.6	M22x1.5	-	34	+ 0.4	41	≈ 5.5
1.4-250-1X	G04	E	206	± 1.5	24	18	± 0.2	152	+ 0.6	G1/2	M33x1.5	39	± 0.3	41	≈ 5.5
1.4-350-2X	G04	C	198	± 1.5	14	-	-	156	+ 0.6	G1/2	-	34	+ 0.4	41	≈ 6.8
1.4-350-2X	G04	E	209	± 1.5	24	18	± 0.2	156	+ 0.6	G1/2	M33x1.5	39	± 0.3	41	≈ 6.8
2.0-100-1X	G04	C	240	± 2	17	-	-	144.7	+ 0.5	G1/2	-	34	+ 0.4	41	≈ 4.1
2.0-100-1X	Z08	C	240	± 2	14	-	-	144.7	+ 0.5	M22x1.5	-	34	+ 0.4	41	≈ 4.1
2.0-100-1X	G05	E5	258	± 1.5	16	20	± 0.2	144.7	+ 0.5	G3/4	M45x1.5	49	± 0.3	50	≈ 4.3
2.0-250-1X	G04	C	251	± 1.5	14	-	-	156	+ 0.6	G1/2	-	34	+ 0.4	41	≈ 8.6
2.0-250-1X	Z08	C	251	± 1.5	14	-	-	156	+ 0.6	M22x1.5	-	34	+ 0.4	41	≈ 8.6
2.0-250-1X	G05	C	251	± 0.5	16	-	-	156	+ 0.6	G3/4	-	33	+ 0.4	41	≈ 8.6
2.0-250-1X	G05	E5	269	± 1.5	16	20	± 0.5	156	+ 0.6	G3/4	M45x1.5	49	± 0.3	50	≈ 8.9
2.0-350-2X	G05	C	251	± 1.5	14	-	-	156	+ 0.6	G3/4	-	33	+ 0.4	41	≈ 9.5
2.0-350-2X	G05	E5	269	± 1.5	16	20	± 0.5	156	+ 0.6	G3/4	M45x1.5	49	± 0.3	50	≈ 8.9
2.8-70-1X	G04	C	266	± 2	17	-	-	160	+ 0.3	G1/2	-	34	+ 0.4	41	≈ 10
2.8-70-1X	Z08	C	266	± 2	17	-	-	160	+ 0.3	M22x1.5	-	34	+ 0.4	41	≈ 10
2.8-250-2X	Z08	C	267	± 1.5	17	-	-	168.5	± 1.5	M22x1.5	-	34	+ 0.4	41	≈ 8
2.8-250-2X	G05	C	267	± 1.5	16	-	-	168.5	± 1.5	G1/2	-	33	+ 0.4	41	≈ 8.3
2.8-250-2X	G05	E5	286	± 1.5	16	20	± 0.5	168.5	± 1.5	G3/4	M45x1.5	49	± 0.3	50	≈ 9
2.8-350-1X	G05	C	264	± 1	16	-	-	180	+ 0.3	G3/4	-	34	+ 0.4	55	≈ 13.1
2.8-350-1X	G05	E5	285	± 1	16	20	± 0.5	180	+ 0.3	G3/4	M45x1.5	53	- 0.8	55	≈ 13.3
3.5-250-2X	G05	C	312	± 1.5	16	-	-	168.5	± 1.5	G3/4	-	33	+ 0.4	41	≈ 9.6
3.5-250-2X	G05	E5	331	± 1.5	16	20	± 0.5	168.5	± 1.5	G3/4	M45x1.5	49	± 0.3	50	≈ 9.8
3.5-350-1X	G05	C	304	± 1	16	-	-	180	+ 0.3	G3/4	-	34	+ 0.4	55	≈ 16.5
3.5-350-1X	G05	E5	325	± 1	16	20	± 0.5	180	+ 0.3	G3/4	M45x1.5	53	- 0.8	55	≈ 16.2

Preferred types: 0.075 ... 1 l

Dimensions in mm

Ordering code/type	Volume/pressure/series	Material number	h		h1	Ød		d1	Ød3		SW	Weight
					min.
			mm	mm	mm	mm	mm		mm	mm		kg
HAD0,075-250-1X/0G04C-1N111-BA	0.075-250-1X	R901359266	110.5	± 1.5	14	64	+ 0.3	G1/2	29	+ 0.4	32	≈ 0.9
HAD0,16-250-1X/0G04C-1N111-BA	0.16-250-1X	R901359268	119	± 1.5	14	75	+ 0.3	G1/2	29	+ 0.4	32	≈ 0.9
HAD0,35-250-1X/0G04C-1N111-BA	0.35-250-1X	R901461019	141	± 1.5	17	95	+ 0.3	G1/2	34	+ 0.4	41	≈ 1.7
HAD0,5-250-2X/0G04C-1N111-BA	0.5-250-2X	R901463743	151	± 1.5	17	106.7	+ 0.3	G1/2	34	+ 0.4	41	≈ 2.1
HAD0,6-330-1X/0G04C-1N111-BA	0.6-330-1X	R901445989	170	± 1.5	17	110	+ 0.3	G1/2	34	+ 0.4	41	≈ 2.9
HAD0,7-250-1X/0G04C-1N111-BA	0.7-250-1X	R901463745	169	± 1.5	17	123.6	+ 0.3	G1/2	34	+ 0.4	41	≈ 3
HAD1,0-250-1X/0G04C-1N111-BA	1,0-250-1X	R901461023	181	± 1.5	17	137	+ 0.3	G1/2	34	+ 0.4	41	≈ 3.8

Preferred types: 1.4 ... 3.5 l

Dimensions in mm

Ordering code/type	Volume/pressure/series	Material number	h		h1	Ød		d1	Ød3		SW	Weight
					min.
			mm	mm	mm	mm	mm		mm	mm		kg
HAD1,4-250-1X/0G04C-1N111-CE	1.4-250-1X	R901463746	195	± 1.5	14	152	+ 0.6	G1/2	34	+ 0.4	41	≈ 5.5
HAD2,0-250-1X/0G05C-1N111-CE	2.0-250-1X	R901463747	251	± 1.5	16	156	+ 0.6	G3/4	33	+ 0.4	41	≈ 8.6
HAD2,8-250-2X/0G05C-1N111-CE	2.8-250-2X	R901463748	267	± 1.5	16	168.5	± 1.5	G3/4	33	+ 0.4	41	≈ 8.3
HAD3,5-250-2X/0G05C-1N111-CE	3.5-250-2X	R901463764	312	± 1.5	16	168.5	± 1.5	G3/4	33	+ 0.4	41	≈ 9.6

Commissioning

Installation conditions

Charging pressure

Diaphragm-type accumulators are usually delivered in condition ready for operation. The charging pressure (p0) is engraved on the accumulator housing.

Charging gas

Hydro-pneumatic accumulators must only be filled with nitrogen of class 4.0, pure N2 content of 99.99 vol. %.

Admissible operating temperature

In "standard version", Rexroth hydro-pneumatic accumulators are suitable for operating temperatures of –15 ... +80 °C.

For deviating temperatures, please contact Bosch Rexroth.

Installation position

Diaphragm-type accumulators may be installed in any installation position.

Above the gas valve, an installation space of 200 mm must be provided for testing and charging devices.

Mounting

When mounting the accumulator, make sure that possible forces, such as the ones created by vibrations or acceleration specific for that application, are absorbed safely. When using several mounting points, avoid stress caused by operational, elastic deformations or temperature expansions.

Bosch Rexroth offers corresponding mounting clamps (see chapter "Accessories" - section "Mounting clamps").

Information

Operating instructions

Language	Operating instructions
German	RD 50150-B
English	RE 50150-B
Spanish	RS 50150-B
French	RF 50150-B
Italian	RI 50150-B
Russian	R-RS 50150-B
Czech	R-CZ 50150-B
Polish	R-PL 50150-B
Chinese	RC 50150-B
Turkish	RT 50150-B

CE Declarations of Conformity

in German, English, French

Type	Declaration of conformity
HAD up to 1.0	–
HAD1,4-140-1X	RA50835411
HAD1,4-250-1X	RA50835430
HAD1,4-350-1X	RA50835474
HAD2,0-100-1X	RA50835499
HAD2,0-250-1X	RA50835536
HAD2,0-350-2X	RA50835604
HAD2,8-70-1X	RA50835627
HAD2,8-250-2X	RA50835731
HAD2,8-350-1X	RA50835846
HAD3,5-250-2X	RA50835875
HAD3,5-350-1X	RA50835914

Accessories

Accumulator adapter for accumulator shut-off blocks type ABZSS

Please select the matching type according to data sheet 50131.

Dimensions in mm

Accumulators	Block
D1	D2	ØD3	Material number
		mm
M22x1.5	M33x1.5	12	1 533 359 012
M18x1.5		8	1 533 359 013
G1/2 ISO 228			1 533 359 034

Mounting clamp, see selection table

Type	Material number	Denomination
HAD0,075-250-1X	-
HAD0,16-250-1X	-
HAD0,35-160-1X HAD0,35-210-1X HAD0,35-211-1X	1531316017	Mounting clamp 92 ... 97 mm
HAD0,5-160-1X HAD0,5-250-2X	1531316018	Mounting clamp 101 ... 111 mm
HAD0,6-330-1X	1531316021	Mounting clamp 110 ... 120 mm 1)
HAD0,7-100-1X	1531316021	Mounting clamp 110 ... 120 mm 1)
HAD0,7-180-1X HAD0,7-207-1X HAD0,7-210-1X HAD0,7-250-1X	1531316015	Mounting clamp 119 ... 128 mm
HAD0,7-350-2X	R901073992	Mounting clamp 128 ... 136 mm
HAD1,0-200-1X	1531316019	Mounting clamp 135 ... 145 mm
HAD1,4-140-1X HAD1,4-207-1X HAD1,4-250-1X HAD1,4-350-2X	1531316016	Mounting clamp 145 ... 155 mm
HAD2,0-100-1X HAD2,0-207-1X HAD2,0-250-1X HAD2,0-350-2X	1531316016	Mounting clamp 145 ... 155 mm
HAD2,8-70-1X HAD2,8-250-2X	1531316022	Mounting clamp 160 ... 170 mm 1)
HAD2,8-350-1X	1531316020	Mounting clamp 170 ... 180 mm
HAD3,5-250-2X HAD3,5-350-1X	1531316020	Mounting clamp 170 ... 180 mm

1)	Usable for HAD and HAB

Charging and test device

Test case	Material number
for diaphragm-type accumulator (HAD)	0538103012
for bladder and diaphragm accumulator (HAB/HAD)	0538103014
Spare parts
Case (wihout contents)	R901079781
Charging and test valve HAB	0538103005
Charging and test valve HAD	0538103006
Pressure gauge 0 … 250 bar	1537231001
Hose l = 2.5 m with adapter piece form "D"	1530712005

Accessory parts to be ordered separately		Material number
Pressure gauge 0 … 25 bar		R900033955
Pressure gauge 0 … 60 bar		1537231002
Pressure gauge 0 … 400 bar		1537231005
Adapter piece	Form "F"	1533391010
	Form "GB"	1533391011
	Form "USA"	1533391012
	Form "KR"	1533391013
	Form "J"	R900216133
	Form "RUS"	1533391015
Hose l = 5 m with transition socket form “D”		1530712006

Dimensions: Charging and test valve

Dimensions in mm

1	Spare part, material number: 1537410065
2	Adapter, see tables "Adapter for nitrogen bottle to cap nut"

Adapter for nitrogen bottle to cap nut
Dimensions in mm

Material no. 1533391010	Material no. 1533391013	Material no. R900034782
Material no. 1533391011	Material no. R900216133	Material no. R900708208
Material no. 1533391012	Material no. 1533391015	Material no. R901070776

Adapter for nitrogen bottle to cap nut

Country 1)​	Material number
	1533391010	1533391011	1533391012	1533391013	R900216133	1533391015	R900034782	R900708208	R901070776
Brazil		x
Bulgaria		x
China									x
France	x
Greece		x
Great Britain		x
India		x
Italy								x
Japan					x
Canada			x
Korea North				x
Korea South				x
Malaysia		x
Mexico	x
Romania	x
Russia						x
Spain		x
Saudi Arabia	x
Singapore		x
Taiwan							x
Turkey		x
USA			x

1)	Other countries on request.

Safety Instructions

Warning sign

1)	The warning sign can be directly attached at the accumulator as of nominal volume 0.35 l.
2)	The warning sign is available for order as of a batch size of 100 units.

Warning sign	Material number
for diaphragm-type accumulator (HAD) Size: 100 mm x 20 mm Color: yellow	R901441614

Important notices

Intended use

Rexroth diaphragm-type accumulators type HAD..-1X/2X are intended for the set-up of hydraulic drive systems in stationary mechanical engineering and plant construction.

In mobile applications or applications in which acceleration forces are applied to the diaphragm-type accumulator during intended use, its use is permitted only following release by the competent Rexroth product manager. Please contact technical sales for this.

Rexroth diaphragm-type accumulators type HAD..-1X/2X are not intended for private use.

Project planning information

Diaphragm-type accumulators have to be safely and permanently fastened to the machine or system using mounting elements. The fastening is intended to keep the oil port tension-free. Particularly, no tension forces or static or dynamic inertia forces should be applied to the oil port.

Thermal expansion of the supporting structure and vibrations originating from the environment should be considered in the selection of suitable mounting points.

Safety instructions for hydro-pneumatic accumulators

The machine end-user is required to enclose operating instructions RE 50150-B for the machine or system and the CE Declaration of Conformity for containers > 1 liters.

General information for hydro-pneumatic accumulators in hydraulic system can be found in DIN EN ISO 4413.

Keep all documents included in the delivery in a safe place. They will be required by the expert in recurring tests.

Legal provisions

Hydro-pneumatic accumulators are pressure vessels and subject to the application national provisions and/or regulations valid at the place of installation.

In Germany, the Ordinance on Industrial Safety and Health (BetrSichV) applies.

In special applications, additional regulations for shipbuilding, aircraft construction or mining may apply.

Authorized persons

According to Ordinance on Industrial Safety and Health (BetrSichV), only authorized persons may carry out tests. Authorized persons are such persons having obtained the required expert knowledge through professional training, experience and recent professional activity.

Safety equipment

Notice:

Hydro-pneumatic accumulators have to be secured against operation outside of the admissible limits according to Pressure Equipment Directive 2014/68/EU.

In order not to exceed the maximum operating pressure, Bosch Rexroth recommends the use of an accumulator shut-off block type ABZSS according to data sheet 50131.

Ordering codes

HAD--/-1111-Result count195 von195Display results listCapacity [l]

0,0750,160,350,50,60,71,01,42,02,83,5Permissible maximal operating pressure [bar]

5570100140160180200210250330350Port size for hydraulic fluidFurther implementations on request

G04G 1/2" ThreadG05G 3/4" ThreadZ04M14x1,5 ThreadZ06M18x1,5 ThreadZ08M22x1,5 ThreadType of mounting for hydraulic fluidFurther implementations on request

AMounting cavityCMounting cavity with external hexagonEScrew-in stud M33x1,5 with internal threadE5Screw-in stud M45x1,5 with internal threadFScrew-in studGas port formStandardFurther implementations on request

1StandardDiaphragm materialFurther implementations on request

Acrylonitrile-Butadiene-RubberNNBREpichlorhydrin-RubberEECOFluor-RubberFFKMApprovalFurther implementations on request

BAOperating instruction (EU)CEPED 2014/68/EU (EU)You have successfully finished your selection.

DocumentationAdd to basketProduct descriptionData sheetRequest CAD

Product description

Type code:HAD--/-1111-

Material number:

The following data were selected.
Gas port form	1	Standard

Downloads

	Diaphragm accumulator Data Sheet | RE50150 | 2021-06-01 | English | PDF | 516k Product Groups: HAD Type HAD
	Diaphragm type accumulator Manual | RE50150-B | 2020-10-01 | English, United States | PDF | 992k Product Groups: Accumulators Type HAD...-1X/ and HAD...-2X/