Pressure relief valves, direct operated, with direct current motor operation DBGT

Description

• Size 6
• Component series 2X
• Maximum operating pressure 700 bar
• Maximum flow 12 l/min

Features

• Operation via DC motor with speed reduction transmission
• For subplate mounting: Porting pattern according to ISO 6264
• with actual value potentiometer
• Self-locking in case of power failure
• Direct operated valve for system pressure limitation
• For high pressure applications with a system pressure of up to 700 bar
  ‒ Suitable as pilot control valve for high pressure logic valves LCT / LFT

Product description

General information

Proportional pressure relief valves type DBGT can be controlled remotely and serve for variable setting and limitation of system pressures up to 700 bar. The system pressure is set by means of a DC motor with self-locking speed reduction transmission. This way, the set pressure is maintained in the event of a voltage failure. Pressure relief valves of this series include a main valve (1) and electric motor (2) with gear (3) as pressure adjustment element.

Functional description

The system pressure is set by means of a DC motor (2) with speed reduction transmission (3). The output shaft of the speed reduction transmission turns the cam (4) that adjusts the preload of the spring (6) via the spring plate (5) to cause a pressure change. The pressure applied to channel P acts on the valve poppet (7). If the hydraulic force on the valve poppet exceeds the spring force, the valve regulates the set pressure by lifting the valve poppet from the valve seat (8) to enable the flow of hydraulic fluid from connection P to T. The cam position (4) and the spring preload is reported back by the actual value potentiometer (9). The integrated amplifier type VT-VRM1-1 enables program control. If the power supply is interrupted (cable break, fuse defect, short-circuit, etc.), the pressure set at the valve remains unchanged.

Type code

Technical data

general

hydraulic

electrical

Adjustment with actual value potentiometer for cam position feedback: Ordering code “P2”

Diagrams/characteristic curves

(measured with HLP46, ϑOil = 40 ±5 °C)

DBGT-2X/700

The characteristic curves were measured without counter pressure in port T (pT = 0 bar).

Symbols/Circuit diagrams

Type DBGT-2X/...

Electrical connection

Connector connection at DBGT valve with actual value potentiometer

Dimensions

Dimensions in mm

Recommended valve mounting screws (separate order):

• 4 hexagon socket head cap screws ISO 4762 - M6 x 80 - 10.9-flZn-240h-L

Tightening torque MA = 12.5 Nm ± 10%; material no. R913000512

Notice: For reasons of stability, exclusively these valve mounting screws may be used.

Accessories

Mating connectors for mechanical position switches, mechanical pressure switches and valves with central connection with connector “K6” and “DK6L”, 6-pole + PE

7P Z6

Mating connectors for mechanical position switches, mechanical pressure switches and valves with central connection with connector “K6” and “DK6L”, 6-pole + PE

7P Z6

• Mating connectors for mechanical position switches, mechanical pressure switches and valves with central connection with connector “K6”

• Data sheet

• Spare parts and repair

Downloads

Pressure relief valve, direct operated, with DC motor actuation, Type DBGT Data Sheet | RE29143 | 2014-02-10 | English | PDF | 1.1MB Product Groups: Direct operated Type DBGT