Features of German REXROTH proportional pressure reducing valves

Brand

REXROTH/Germany Rexroth

Application Areas

Medical & Health, Environmental Protection, Food/Agricultural Products, Chemical Industry, Petroleum

REXROTH Proportional Pressure Reducing Valve Selection Information

REXROTH Piston Pumps, REXROTH Proportional Valves, REXROTH Solenoid Valves, REXROTH Pneumatic Components

REXROTH proportional pressure reducing valves belong to the high-pressure valve series and are suitable for use in metallurgy, petroleum, hydraulic, and water pressure testing units. Main Uses: They achieve pressure reduction by throttling energy consumption, allowing high-pressure water in high-pressure and ultra-high-pressure equipment and pipelines to be reduced to the required low pressure before discharge, resulting in a uniform pressure reduction in the high-pressure system.

REXROTH Proportional Pressure Reducing Valve Features:

REXROTH proportional pressure reducing valves consist of a cylinder and a valve body. The orifice plate and high-pressure regulating valve are designed as a single unit. The valve opening and closing, discharge flow, and pressure reduction are controlled by the hydraulic cylinder stroke. Discharge pressure and flow can be adjusted arbitrarily, ensuring safety and convenience.

Proportional pressure reducing valve: Pressure drop from 50 MPa to 1.6 MPa, adjustable discharge pressure.

Working principle of REXROTH proportional pressure reducing valve:

The pilot valve opens by turning the top adjusting bolt clockwise, causing the spring to contract and the resulting elastic force to cause the pilot valve diaphragm to concave downwards. The force acting on the pilot valve connecting rod causes it to move downwards, opening the pilot valve. When the pilot valve opens, steam from the upstream inlet pipe section A enters the pilot valve annular steam chamber through the α channel (steam supply regulating channel), and is directly delivered to the upper chamber of the piston cylinder below via the β channel. With the continuous supply of steam in chamber A, the pressure continuously increases, pushing the piston downwards to open the main valve. At this time, steam continuously flows from chamber A to chamber B. When the load in the downstream outlet pipe section B is sufficient, the excess steam causes the pressure in chamber B to continuously increase. The continuously increasing pressure is fed back to the lower chamber of the pilot valve diaphragm through the γ channel (pressure sensing channel), causing the pilot valve diaphragm to bulge upwards, overcoming the pressure of the upper adjusting spring, and the pilot valve is partially closed or closed. This reduces or shuts off the steam source from the upstream α channel. When the pressure in the upper chamber of the piston cylinder decreases, the main valve is partially or completely closed by the return spring below. At this point, the pressure in chamber B begins to decrease, and this cycle repeats to achieve pressure regulation.

Models DRS and ZDRS

Proportional pressure reducing valve, pilot-operated, with DC motor operation

Size 6

Mounting surface according to ISO 4401

Valve for reducing system pressure, with overflow function

DC motor operation

Rexroth Shanghai sells pressure reducing valves/Rexroth proportional pressure reducing valves

Base plate mounting

As a stack valve

Models 3DRE(M) and 3DRE(M)E

Proportional pressure reducing valve, pilot-operated

Sizes 10 and 16

Mounting surface according to DIN 24340 Type A and ISO 4401

Valve for reducing system pressure

Proportional solenoid operation

Base plate mounting

Integrated electronic controller (OBE) for 3DREE and 3DREME

Model DRE

Proportional pressure reducing valve, pilot-operated

Sizes 6 and 10

Size 6: Mounting surface according to ISO 4401

Size 10: Mounting surface according to ISO 5781-AG-06-2-A

Valve for reducing system pressure

Proportional solenoid operation

Adjusted by the position of the electromagnet armature

DREBE type integrated electronic controller (OBE)

Models DRE(M) and DRE(M)E

Proportional pressure reducing valve, pilot operated

Sizes 10 to 32

Mounting surface according to DIN 24340 Type D

Valve for reducing system pressure

Proportional electromagnet operation

Base plate mounting

Linear pressure/command value characteristic curve

Maximum pressure reduction function for DREM and DREME types

Optional check valve between ports A and B

Integrated electronic controller (OBE) for DREE and DREME

Models (Z)DRE and ZDREE 10

Proportional pressure reducing valve, pilot operated

Sizes 6 and 10

Mounting surface according to DIN 24340 Type A and ISO 4401

R901220113 3DREME 10 P-7X/200YG24K31A1V

R901218887 3DREM 16 P-7X/200YG24K4V

R901218236 3DREM 10P-7X/200YG24K4V

R901218097 3DREME 10P-7X/200YG24K31F1V

R901213583 3DREE 16P-7X/200YG24K31A1V

R901160417 ZDRE 10 VP4-1X/200LMG24K4M

R901119041 ZDRE 10 VP4-1X/100XLMG24K4M

R900703033 DREE 30-4X/315YG24K31M

R900701653 FILTER FTDRE 2 K32/ 160YM

R900701407 FTDRE 2 K32/18AG24C4V-8

R900700593 3DREPE 6 C-2X/16EG24N9K31/A1V

R900691920 DREHKNOPF DR 6 DP1-50/

R900691911 DREHKNOPF DB 6 K7-40/

R900619604 DREE 10-5X/50YG24K31M

R900619345 ZDREE 10 VP3-1X/315XLMG24NK31M

R900619020 SENSOR,DREHWINKEL- +-35` 424A16A05801

R900617992 ZDRE 6 VP1-1X/50MG24K4M

R900617791 ZDREE 10 VP1-1X/200XLMG24K31M

Our company mainly deals in European and American brands and can source brands from any European country. For example, our advantageous German brands include: BURKERT, DEMAG, HAWE, REXROTH, HYDAC, PILZ relays, FESTO, IFM sensors, E+H, HEIDENHAIN, P+F sensors, SICK, TURCK, and HIRSCHMANN industrial switches. German brands: Henstler, Murr, Schmersal, Samson, EPRO (Emerson Group)

American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, VICKERS, ROSS

British brands: Norgren

Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camostat