R900424157 DBDS10P1X/200 Direct acting relief valve from Rexroth, Germany
Price:
Negotiable
MOQ:
1
Delivery Time:
2 weeks
Brand:
Rexroth
Product Description
R900424157 DBDS10P1X/200 Direct Acting Relief Valve
Direct-acting seat-type pressure relief valve from Rexroth, Germany. Designed for precise pressure control in hydraulic systems.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | R900424157 |
| Model | DBDS 10 P1X / 200 |
| 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 | 200 bar (20 MPa) |
| Max. Operating Pressure (P-port) | 630 bar |
| Max. Flow Rate (Qmax) | approx. 100-120 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.) | 3.6-3.7 kg |
| Body Material | Steel, zinc-plated |
Product Image
Frequently Asked Questions
Is this a pilot-operated or direct-acting relief valve?
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.
What does "P1X / 200" mean?
P1 = adjustment type: hexagon socket with protective cap (Allen key adjustable).
1X = component series index (dimensionally interchangeable within series 1X).
/200 = spring pressure stage, maximum settable relief pressure = 200 bar.
1X = component series index (dimensionally interchangeable within series 1X).
/200 = spring pressure stage, maximum settable relief pressure = 200 bar.
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.
Which subplate is required?
Use a standard NG10 (Size 10) subplate per ISO 6264 with P and T ports. The valve mounts via four M10 bolts (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.
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.
Common fault symptoms?
Pressure won't reach set value: wrong spring grade (not /200), high T-backpressure, poppet sticking due to contaminated oil, or undersized pump.
Continuous dribble / leak: 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.
Continuous dribble / leak: 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.
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.
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Company
Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.
Location
Nan'an, Fujian Province, China
Contact Person
liyun