Home>Products>REXROTH Pressure relief valve>REXROTH Z2DB 10 VD2-4X/50 R900444618 Pressure relief valve
REXROTH Z2DB 10 VD2-4X/50 R900444618 Pressure relief valve
category
REXROTH Pressure relief valve
REXROTH Z2DB 10 VD2-4X/50 SPECIFICATIONS
- REXROTH
Z2DB 10 VD2-4X/50
- 75.0 LB
- Flange Mount
- Left Hand (CCW)
- 3520VQ38A5-11AA20LH
- 3
- Flange
- N/A
- Standard Pilot
- Hydraulic Gear Pump INC2020-07-10 09:46:19
Welcome to my shop! Glad to serve you! Please send your question!
REXROTH Z2DB 10 VD2-4X/50 R900444618 Pressure relief valve Codes and sizes
- 1.25 in
- 14 Tooth Splined
- 3520VQ
- 1 15/16 in
- Buna-N
- 2400
- 1.04 in
- SAE C, 2 Bolt
- Single Shaft Seal
- 12/24
- 2500
- 2400
- N/A
- 5 gal/min @ 1200 rpm, 7.5 gal/min @ 1800 rpm
- 1.248 in
- 1.247 in
- N/A
- N/A
- N/A
- 38 gal/min @ 1200 rpm, 57 gal/min @ 1800 rpm
- 3520VQ38A5-11AA20LH
- 3000
- 3000
- 7.5
- 57
- w/o Integral Valves
- Outlet 135° CCW from Inlet
- Outlet Opposite Inlet
- 3/4 in Flange
- 1 1/4 in Flange
- 1.1
- 7.42
REXROTH Z2DB 10 VD2-4X/50 REXROTH Z2DB 10 VD2-4X/50 R900444618 Pressure relief valve Code system
REXROTH DBW 10 B2-5X/100-6EG24N9K4 R900906650 Pressure relief valve | Pump Series:75.0 LB; GPM @ 1,800 rpm, Shaft End:Flange Mount; Pilot Type:Left Hand (CCW); Displacement Cover End (cu in/revolution):3520VQ38A5-11AA20LH; Minor Diameter:3; Minor Diameter [Max:Flange; Weight:N/A; Port Size:Standard Pilot; Shaft Length:1.25 in; Model No.:14 Tooth Splined; Pump Series:3520VQ; Shaft Length:1 15/16 in; Seal Material:Buna-N; Max. RPM [Max:2400; Minor Diameter:1.04 in; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:12/24; Cover End RPM [Max:2500; Shaft End RPM [Max:2400; Controlled Flow Rate:N/A; Cover End Flow @ RPM:5 gal/min @ 1200 rpm, 7.5 gal/min @ 1800 rpm; Major Diameter [Max:1.248 in; Major Diameter [Min:1.247 in; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:38 gal/min @ 1200 rpm, 57 gal/min @ 1800 rpm; Manufacturer Part No.:3520VQ38A5-11AA20LH; Cover End Pressure [Max:3000; Shaft End Pressure [Max:3000; GPM @ 1,800 rpm, Cover End:7.5; GPM @ 1,800 rpm, Shaft End:57; Integral Valve Configuration:w/o Integral Valves; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:3/4 in Flange; Pressure Port Size, Shaft End:1 1/4 in Flange; Displacement Cover End (cu in/revolution):1.1; Displacement Shaft End (cu in/revolution):7.42; |
REXROTH DBW 30 B2-5X/200-6EG24N9K4 R900923938 Pressure relief valve | Major Diameter [Max:75.0 LB; Rotation:Flange Mount; Integral Valve Configuration:Left Hand (CCW); Shaft Dia.:3520VQ38A5-11AA20LH; Controlled Flow Rate:3; Pressure Port Size, Cover End:Flange; Manufacturer Part No.:N/A; Weight:Standard Pilot; Minor Diameter [Min:1.25 in; Major Diameter [Min:14 Tooth Splined; Pump Series:3520VQ; Shaft Length:1 15/16 in; Seal Material:Buna-N; Max. RPM [Max:2400; Minor Diameter:1.04 in; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:12/24; Cover End RPM [Max:2500; Shaft End RPM [Max:2400; Controlled Flow Rate:N/A; Cover End Flow @ RPM:5 gal/min @ 1200 rpm, 7.5 gal/min @ 1800 rpm; Major Diameter [Max:1.248 in; Major Diameter [Min:1.247 in; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:38 gal/min @ 1200 rpm, 57 gal/min @ 1800 rpm; Manufacturer Part No.:3520VQ38A5-11AA20LH; Cover End Pressure [Max:3000; Shaft End Pressure [Max:3000; GPM @ 1,800 rpm, Cover End:7.5; GPM @ 1,800 rpm, Shaft End:57; Integral Valve Configuration:w/o Integral Valves; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:3/4 in Flange; Pressure Port Size, Shaft End:1 1/4 in Flange; Displacement Cover End (cu in/revolution):1.1; Displacement Shaft End (cu in/revolution):7.42; |
REXROTH DBW 30 B1-5X/315-6EG24N9K4 R900906773 Pressure relief valve | GPM @ 1,800 rpm, Shaft End:75.0 LB; Relief Valve Setting:Flange Mount; Controlled Flow Rate:Left Hand (CCW); Cover End Flow @ RPM:3520VQ38A5-11AA20LH; GPM @ 1,800 rpm, Cover End:3; Port Size:Flange; Major Diameter [Max:N/A; Integral Valve Configuration:Standard Pilot; Weight:1.25 in; Rotation:14 Tooth Splined; Pump Series:3520VQ; Shaft Length:1 15/16 in; Seal Material:Buna-N; Max. RPM [Max:2400; Minor Diameter:1.04 in; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:12/24; Cover End RPM [Max:2500; Shaft End RPM [Max:2400; Controlled Flow Rate:N/A; Cover End Flow @ RPM:5 gal/min @ 1200 rpm, 7.5 gal/min @ 1800 rpm; Major Diameter [Max:1.248 in; Major Diameter [Min:1.247 in; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:38 gal/min @ 1200 rpm, 57 gal/min @ 1800 rpm; Manufacturer Part No.:3520VQ38A5-11AA20LH; Cover End Pressure [Max:3000; Shaft End Pressure [Max:3000; GPM @ 1,800 rpm, Cover End:7.5; GPM @ 1,800 rpm, Shaft End:57; Integral Valve Configuration:w/o Integral Valves; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:3/4 in Flange; Pressure Port Size, Shaft End:1 1/4 in Flange; Displacement Cover End (cu in/revolution):1.1; Displacement Shaft End (cu in/revolution):7.42; |
REXROTH DB 30-2-5X/100 R900594677 Pressure relief valve | Cover End Flow @ RPM:75.0 LB; Model No.:Flange Mount; Seal Material:Left Hand (CCW); Port Type:3520VQ38A5-11AA20LH; Port Size:3; Shaft Seal Type:Flange; Rotation:N/A; Shaft Type:Standard Pilot; Pilot Type:1.25 in; Spline Description:14 Tooth Splined; Pump Series:3520VQ; Shaft Length:1 15/16 in; Seal Material:Buna-N; Max. RPM [Max:2400; Minor Diameter:1.04 in; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:12/24; Cover End RPM [Max:2500; Shaft End RPM [Max:2400; Controlled Flow Rate:N/A; Cover End Flow @ RPM:5 gal/min @ 1200 rpm, 7.5 gal/min @ 1800 rpm; Major Diameter [Max:1.248 in; Major Diameter [Min:1.247 in; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:38 gal/min @ 1200 rpm, 57 gal/min @ 1800 rpm; Manufacturer Part No.:3520VQ38A5-11AA20LH; Cover End Pressure [Max:3000; Shaft End Pressure [Max:3000; GPM @ 1,800 rpm, Cover End:7.5; GPM @ 1,800 rpm, Shaft End:57; Integral Valve Configuration:w/o Integral Valves; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:3/4 in Flange; Pressure Port Size, Shaft End:1 1/4 in Flange; Displacement Cover End (cu in/revolution):1.1; Displacement Shaft End (cu in/revolution):7.42; |
REXROTH ZDB 10 VP2-4X/200V R900409937 Pressure relief valve | Rotation:75.0 LB; Controlled Flow Rate:Flange Mount; Shaft Dia.:Left Hand (CCW); Pilot Type:3520VQ38A5-11AA20LH; Pressure Port Size, Shaft End:3; Minor Diameter [Min:Flange; Shaft End Flow @ RPM:N/A; Port Size:Standard Pilot; Displacement Cover End (cu in/revolution):1.25 in; Mounting:14 Tooth Splined; Pump Series:3520VQ; Shaft Length:1 15/16 in; Seal Material:Buna-N; Max. RPM [Max:2400; Minor Diameter:1.04 in; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:12/24; Cover End RPM [Max:2500; Shaft End RPM [Max:2400; Controlled Flow Rate:N/A; Cover End Flow @ RPM:5 gal/min @ 1200 rpm, 7.5 gal/min @ 1800 rpm; Major Diameter [Max:1.248 in; Major Diameter [Min:1.247 in; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:38 gal/min @ 1200 rpm, 57 gal/min @ 1800 rpm; Manufacturer Part No.:3520VQ38A5-11AA20LH; Cover End Pressure [Max:3000; Shaft End Pressure [Max:3000; GPM @ 1,800 rpm, Cover End:7.5; GPM @ 1,800 rpm, Shaft End:57; Integral Valve Configuration:w/o Integral Valves; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:3/4 in Flange; Pressure Port Size, Shaft End:1 1/4 in Flange; Displacement Cover End (cu in/revolution):1.1; Displacement Shaft End (cu in/revolution):7.42; |
REXROTH DBW 20 B1-5X/100-6EG24N9K4 R900941177 Pressure relief valve | Model No.:75.0 LB; Shaft Key:Flange Mount; GPM @ 1,800 rpm, Cover End:Left Hand (CCW); Integral Valve Configuration:3520VQ38A5-11AA20LH; Pressure Port Size, Cover End:3; Pump Series:Flange; Major Diameter [Min:N/A; Displacement Shaft End (cu in/revolution):Standard Pilot; Mounting Flange:1.25 in; Displacement Cover End (cu in/revolution):14 Tooth Splined; Pump Series:3520VQ; Shaft Length:1 15/16 in; Seal Material:Buna-N; Max. RPM [Max:2400; Minor Diameter:1.04 in; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:12/24; Cover End RPM [Max:2500; Shaft End RPM [Max:2400; Controlled Flow Rate:N/A; Cover End Flow @ RPM:5 gal/min @ 1200 rpm, 7.5 gal/min @ 1800 rpm; Major Diameter [Max:1.248 in; Major Diameter [Min:1.247 in; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:38 gal/min @ 1200 rpm, 57 gal/min @ 1800 rpm; Manufacturer Part No.:3520VQ38A5-11AA20LH; Cover End Pressure [Max:3000; Shaft End Pressure [Max:3000; GPM @ 1,800 rpm, Cover End:7.5; GPM @ 1,800 rpm, Shaft End:57; Integral Valve Configuration:w/o Integral Valves; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:3/4 in Flange; Pressure Port Size, Shaft End:1 1/4 in Flange; Displacement Cover End (cu in/revolution):1.1; Displacement Shaft End (cu in/revolution):7.42; |
REXROTH DBW 20 B1-5X/200-6EG24N9K4 R900935659 Pressure relief valve | Pump Series:75.0 LB; Major Diameter [Max:Flange Mount; Displacement Shaft End (cu in/revolution):Left Hand (CCW); Minor Diameter:3520VQ38A5-11AA20LH; Pressure Port Size, Cover End:3; Shaft Seal Type:Flange; Rotation:N/A; Port Type:Standard Pilot; Port Orientation - Cover End:1.25 in; Model No.:14 Tooth Splined; Pump Series:3520VQ; Shaft Length:1 15/16 in; Seal Material:Buna-N; Max. RPM [Max:2400; Minor Diameter:1.04 in; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:12/24; Cover End RPM [Max:2500; Shaft End RPM [Max:2400; Controlled Flow Rate:N/A; Cover End Flow @ RPM:5 gal/min @ 1200 rpm, 7.5 gal/min @ 1800 rpm; Major Diameter [Max:1.248 in; Major Diameter [Min:1.247 in; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:38 gal/min @ 1200 rpm, 57 gal/min @ 1800 rpm; Manufacturer Part No.:3520VQ38A5-11AA20LH; Cover End Pressure [Max:3000; Shaft End Pressure [Max:3000; GPM @ 1,800 rpm, Cover End:7.5; GPM @ 1,800 rpm, Shaft End:57; Integral Valve Configuration:w/o Integral Valves; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:3/4 in Flange; Pressure Port Size, Shaft End:1 1/4 in Flange; Displacement Cover End (cu in/revolution):1.1; Displacement Shaft End (cu in/revolution):7.42; |
REXROTH ZDB 6 VP2-4X/200 R900428339 Pressure relief valve | Relief Valve Setting:75.0 LB; Major Diameter [Max:Flange Mount; GPM @ 1,800 rpm, Cover End:Left Hand (CCW); Port Orientation - Shaft End:3520VQ38A5-11AA20LH; Seal Material:3; Mounting:Flange; Spline Description:N/A; Cover End Pressure [Max:Standard Pilot; Shaft End Flow @ RPM:1.25 in; Pressure Port Size, Cover End:14 Tooth Splined; Pump Series:3520VQ; Shaft Length:1 15/16 in; Seal Material:Buna-N; Max. RPM [Max:2400; Minor Diameter:1.04 in; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:12/24; Cover End RPM [Max:2500; Shaft End RPM [Max:2400; Controlled Flow Rate:N/A; Cover End Flow @ RPM:5 gal/min @ 1200 rpm, 7.5 gal/min @ 1800 rpm; Major Diameter [Max:1.248 in; Major Diameter [Min:1.247 in; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:38 gal/min @ 1200 rpm, 57 gal/min @ 1800 rpm; Manufacturer Part No.:3520VQ38A5-11AA20LH; Cover End Pressure [Max:3000; Shaft End Pressure [Max:3000; GPM @ 1,800 rpm, Cover End:7.5; GPM @ 1,800 rpm, Shaft End:57; Integral Valve Configuration:w/o Integral Valves; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:3/4 in Flange; Pressure Port Size, Shaft End:1 1/4 in Flange; Displacement Cover End (cu in/revolution):1.1; Displacement Shaft End (cu in/revolution):7.42; |
REXROTH Z2DB 6 VD2-4X/200V R900411314 Pressure relief valve | Shaft Dia.:75.0 LB; Shaft End Pressure [Max:Flange Mount; Major Diameter [Max:Left Hand (CCW); Integral Valve Configuration:3520VQ38A5-11AA20LH; Cover End Flow @ RPM:3; Pilot Type:Flange; Seal Material:N/A; Shaft Length:Standard Pilot; Pressure Port Size, Shaft End:1.25 in; Cover End RPM [Max:14 Tooth Splined; Pump Series:3520VQ; Shaft Length:1 15/16 in; Seal Material:Buna-N; Max. RPM [Max:2400; Minor Diameter:1.04 in; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:12/24; Cover End RPM [Max:2500; Shaft End RPM [Max:2400; Controlled Flow Rate:N/A; Cover End Flow @ RPM:5 gal/min @ 1200 rpm, 7.5 gal/min @ 1800 rpm; Major Diameter [Max:1.248 in; Major Diameter [Min:1.247 in; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:38 gal/min @ 1200 rpm, 57 gal/min @ 1800 rpm; Manufacturer Part No.:3520VQ38A5-11AA20LH; Cover End Pressure [Max:3000; Shaft End Pressure [Max:3000; GPM @ 1,800 rpm, Cover End:7.5; GPM @ 1,800 rpm, Shaft End:57; Integral Valve Configuration:w/o Integral Valves; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:3/4 in Flange; Pressure Port Size, Shaft End:1 1/4 in Flange; Displacement Cover End (cu in/revolution):1.1; Displacement Shaft End (cu in/revolution):7.42; |
REXROTH Z2DB 6 VC2-4X/200 R900431164 Pressure relief valve | Shaft Type:75.0 LB; Rotation:Flange Mount; Port Orientation - Shaft End:Left Hand (CCW); Port Size:3520VQ38A5-11AA20LH; Minor Diameter [Min:3; Major Diameter [Min:Flange; Pressure Port Size, Shaft End:N/A; Shaft End RPM [Max:Standard Pilot; Pressure Port Size, Cover End:1.25 in; Shaft Dia.:14 Tooth Splined; Pump Series:3520VQ; Shaft Length:1 15/16 in; Seal Material:Buna-N; Max. RPM [Max:2400; Minor Diameter:1.04 in; Mounting Flange:SAE C, 2 Bolt; Shaft Seal Type:Single Shaft Seal; Spline Description:12/24; Cover End RPM [Max:2500; Shaft End RPM [Max:2400; Controlled Flow Rate:N/A; Cover End Flow @ RPM:5 gal/min @ 1200 rpm, 7.5 gal/min @ 1800 rpm; Major Diameter [Max:1.248 in; Major Diameter [Min:1.247 in; Minor Diameter [Max:N/A; Minor Diameter [Min:N/A; Relief Valve Setting:N/A; Shaft End Flow @ RPM:38 gal/min @ 1200 rpm, 57 gal/min @ 1800 rpm; Manufacturer Part No.:3520VQ38A5-11AA20LH; Cover End Pressure [Max:3000; Shaft End Pressure [Max:3000; GPM @ 1,800 rpm, Cover End:7.5; GPM @ 1,800 rpm, Shaft End:57; Integral Valve Configuration:w/o Integral Valves; Port Orientation - Cover End:Outlet 135° CCW from Inlet; Port Orientation - Shaft End:Outlet Opposite Inlet; Pressure Port Size, Cover End:3/4 in Flange; Pressure Port Size, Shaft End:1 1/4 in Flange; Displacement Cover End (cu in/revolution):1.1; Displacement Shaft End (cu in/revolution):7.42; |
Pressure relief valve, direct controlled | Bosch Rexroth AG
Pressure relief valves of type DBD are direct operated seat valves. They are used for limiting a system pressure. The valves basically consist of sleeve (1), spring
Pressure relief valve, pilot controlled | Bosch Rexroth AG
Pressure relief valve, pilot controlled. DBW(C/T). Size 10 … 32; Component series 5X; Maximum operating pressure 350 bar; Maximum flow 650 l/min. Order
Pressure relief valves | Bosch Rexroth AG
Skip to Content. International. Select your location. Bosch Rexroth around the world. Asia & Pacific. Australia · China · India · Indonesia · Japan · Kazakhstan
Pilot-operated | Bosch Rexroth AG
Pressure relief valve, pilot controlled · DB(C/T) · Pressure relief valve, pilot ... Pressure relief valve, pilot controlled · DB...XC · Pressure relief valve, pilot
Pressure relief valves, direct operated - Rexroth | Bosch Rexroth
They are used to limit the pressure in a hydraulic system. DBD type relief valves offer line contact sealing for minimal leakage at closure and a full array of pressure
REXROTH Z2DB 10 VD2-4X/50 R900444618 Pressure relief valve Video
Contact Us
- Hydraulic Gear Pump INC
- Address5654 Corporate Way Richmond, Kentucky 450987, U.S.A.
- Phone(Working Time)806-626-5622
REXROTH Z2DB 10 VD2-4X/50 Technical Articles
How can you tell if your rear wheel bearings are bad? |
How do I clean my bearings? |
How do you know when your front wheel bearings are bad? |
REXROTH Pressure relief valve CATEGORIES
- Vickers Piston Pump PV Series
- AMI Bearing
- CONSOLIDATED BEARING
- DODGE Bearing
- FAG Bearing
- ISOSTATIC Bearing
- LINK BELT
- MCGILL Bearing
- NTN Bearing
- QM INDUSTRIES Bearing
- RBC BEARINGS
- REXNORD Bearing
- RHP Bearing
- SKF Bearing
- TIMKEN Bearing
- REXROTH Throttle valves
- REXROTH Throttle check valves
- REXROTH Pressure reducing valve
- REXROTH Directional spool valves
- REXROTH Directional poppet valves
- REXROTH HY-CHECK VALVE
- REXROTH Pressure relief valve
- REXROTH Check valves
- REXROTH Valves
- REXROTH Throttle check valve
- REXROTH Twin throttle check valve
- 35bd219dum Bearing
- nsk lg2 Bearing
- timken 513188 Bearing
- din iso 12240 Bearing
- Denison Vane Pumps
- High Pressure Vane Pump
- Hydraulic Gear Pump
- Hydraulic Piston Pump
- Hydraulic Vane Motor
- Hydraulic Vane Pump
- Industrial Vane Pump
- Tokimec Vane Pump
- Vickers Vane Pump
- Yuken Vane Pump
Customers Who Viewed REXROTH Z2DB 10 VD2-4X/50 Also Viewed
- REXROTH DBW 30 B1-5X/315-6EG24N9K4 R900906773 Pressure relief valve
- REXROTH ZDB 10 VP2-4X/50 R900440098 Pressure relief valve
- REXROTH ZDB 10 VP2-4X/200V R900409937 Pressure relief valve
- REXROTH DBW 20 B1-5X/100-6EG24N9K4 R900941177 Pressure relief valve
- REXROTH DBW 10 B2-5X/100-6EG24N9K4 R900906650 Pressure relief valve