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R900424155 DBDS10P1X/100 Rexroth direct acting relief valve

China R900424155 DBDS10P1X/100 Rexroth direct acting relief valve

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R900424155 DBDS10P1X/100 Rexroth direct acting relief valve

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Delivery Time	2 weeks
Max. Adjustable Relief Pressure	100 bar (10 MPa)
Max. Flow Rate (Qmax)	approx. 120 L/min (Size 10 DBD)
Nominal Size (NG)	10 — subplate mounting per ISO 6264 / NG10
Fluid Temperature Range	-30 °C to +80 °C (NBR seals)
Packaging Details	wooden box
Ports	2 (P → T, Pressure to Tank)
Supply Ability	100
Payment Terms	Western Union,T/T,D/P,D/A,L/C
Place of Origin	Germany
Model Number	R900424155 DBDS10P1X/100
Brand Name	Rexroth
Certification	ISO

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Product Details
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Product Specification


Delivery Time	2 weeks	Max. Adjustable Relief Pressure	100 bar (10 MPa)
Max. Flow Rate (Qmax)	approx. 120 L/min (Size 10 DBD)	Nominal Size (NG)	10 — subplate mounting per ISO 6264 / NG10
Fluid Temperature Range	-30 °C to +80 °C (NBR seals)	Packaging Details	wooden box
Ports	2 (P → T, Pressure to Tank)	Supply Ability	100
Payment Terms	Western Union,T/T,D/P,D/A,L/C	Place of Origin	Germany
Model Number	R900424155 DBDS10P1X/100	Brand Name	Rexroth
Certification	ISO
High Light	Rexroth direct acting relief valve ，DBDS10P1X hydraulic relief valve ，Rexroth hydraulic valve with warranty

R900424155 DBDS10P1X/100 Rexroth Direct Acting Relief Valve

Product Specifications

Part Number	R900424155
Model	DBDS 10 P1X / 100
Valve Type	Direct-acting seat-type pressure relief valve (DBD series)
Nominal Size (NG)	10 – subplate mounting per ISO 6264 / NG10
Adjustment Type	Hexagon socket setscrew with protective cap (P1X = index 1X, adjustable by Allen key)
Max. Adjustable Relief Pressure	100 bar (10 MPa)
Max. Operating Pressure (P-port)	630 bar
Max. Flow Rate (Qmax)	approx. 120 L/min (Size 10 DBD)
Ports	2 (P → T, Pressure to Tank)
Seal Material	NBR (standard, code omitted = NBR)
Hydraulic Fluid	Mineral oil HL, HLP per DIN 51524; HFC (water-glycol); HLPD, HVLP, HVLPD
Fluid Temperature Range	-30 °C to +80 °C (NBR seals)
Viscosity Range	10 - 800 mm²/s
Weight (approx.)	3.66 kg
Body Material	Steel, zinc-plated

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Frequently Asked Questions

Q1: Is DBDS10P1X/100 pilot-operated or direct-acting?

It is a direct-acting seat valve (DBD series) – no pilot stage. The spring-loaded poppet/ball opens immediately when system pressure exceeds the spring preload setting.

Q2: What does "P1X / 100" mean?

P1 = adjustment type: hexagon socket with protective cap (Allen key adjustable).
1X = component series index (dimensionally interchangeable within series 1X).
/100 = spring pressure stage, maximum settable relief pressure = 100 bar.

Q3: How do I adjust the relief pressure?

Depressurize the system, remove the protective cap, turn the internal setscrew with an Allen key – clockwise to increase, counterclockwise to decrease. Reinstall the cap and verify with a pressure gauge at the P-port. Factory preset is typically near the low end of the spring range; always adjust on-site to the required system pressure.

Q4: Which subplate is required?

Use a standard NG10 (Size 10) subplate per ISO 6264 with P and T ports. The valve mounts via four bolts (typically M10, tightening torque approx. 35-40 N*m – refer to Rexroth mounting drawing). Subplate port threads are commonly G 1/2" BSP or M18×1.5.

Q5: Does T-port backpressure affect the set pressure?

Yes. The spring chamber drains internally to the T-port, so any backpressure at T adds 1:1 to the relief/cracking pressure. Keep T-line backpressure minimal or compensate in the setpoint.

Q6: Common fault symptoms?

Pressure won't reach set value / can't be adjusted down to zero: wrong spring grade, high T-backpressure, poppet sticking due to contaminated oil, or weak pump.

Continuous leakage / dribble: damaged seating surface, worn O-ring, or contamination trapped in the seat – clean or replace.

Chatter / noise: air in the system, flow exceeding 120 L/min, or line resonance – bleed air and confirm flow rating.

Q7: Fluid & seal compatibility?

Standard NBR seals suit mineral oil (HL/HLP) and HFC (water-glycol). For HEES/HETG biodegradable oils or HFD phosphate ester, FKM (Viton) seals are required – order the "V" seal variant if needed.

Need the Rexroth DBD series datasheet (RE 25402) or NG10 subplate machining dimensions? Just let me know.

Company Details

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Manufacturer,Exporter 
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Total Annual:

1 million-10 millon
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Employee Number:

>50 
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Ecer Certification：

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Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha... Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha...

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Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.
Nan'an, Fujian Province, China
https://www.electrichydpump.com/

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