Shijiazhuang Laiye Imort& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of dbds direct acting pressure relief valve rexroth replacement in China, also supports customized service. If you're going to wholesale high quality dbds direct acting pressure relief valve rexroth replacement made in China, welcome to get pricelist from our factory.
DBDS Direct Acting Pressure Relief Valve – Reliable Overload Protection for Hydraulic Systems
The DBDS direct acting pressure relief valve is a screw‑in, poppet‑type valve that limits system pressure by bypassing excess flow to tank. Unlike pilot‑operated designs, the DBDS responds instantly to pressure spikes because there is no delay from control orifices. This makes it the preferred choice for protecting small‑capacity circuits, accumulator stations, and auxiliary functions where fast reaction and simple construction matter.
At Onederful® Hydraulic, we machine every DBDS valve from solid steel blanks, hand‑lap the sealing cone, and test each unit at 1.5× its set pressure. No shortcuts – only consistent, long‑lasting protection for your hydraulic investment.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Nominal size | NG6 / NG10 (screw‑in cartridge) |
| Max. operating pressure | 315 bar (4500 psi) |
| Max. flow rate | 50 L/min (NG6) / 100 L/min (NG10) |
| Pressure adjustment range | 5 – 315 bar (multiple spring ranges) |
| Adjustment type | Hexagon socket screw with locknut, optional hand knob |
| Hysteresis | < 3% of set pressure |
| Response time | ≤ 10 ms |
| Temperature range | -20°C … +80°C (standard NBR seals) |
Material & Construction
Valve body – 45# carbon steel or stainless steel (on request), zinc‑plated and passivated
Poppet & seat – hardened bearing steel (HRC 55‑60), lapped to a mirror finish for zero leakage when closed
Spring – high‑cycle chrome‑vanadium alloy, preset and aged to eliminate sag
Seals – NBR (standard) / FKM (Viton) for high‑temperature or aggressive fluids
Adjustment screw – stainless steel with fine pitch for precise, vibration‑resistant setting
Every component is inspected upon arrival – if a raw casting shows porosity, it is rejected before machining.
Typical Applications
The DBDS is often installed directly into a manifold block or on a subplate, requiring no extra piping.
Hydraulic power units
main system pressure limiting (small HPU)
01
Accumulator circuits
overpressure prevention during charging
02
Brake and clutch hydraulics
precise maximum pressure clamp
03
Test benches
simulated load generation or burst protection
04
Mobile machinery
pilot line protection or auxiliary valve circuits
05
Why Choose Onederful®
Company Strength & Development History
Founded in 1988, Shijiazhuang Laiye Import & Export Trading Co., Ltd (part of Hebei Wendefu Hydraulic Technology Co., Ltd.) has 35+ years of pressure valve manufacturing experience. Our team of 200+ professionals ships over 10,000 containers annually to customers in Russia, Europe, the Middle East, South America, and Asia.
Our Manufacturing Process (DBDS line)
Raw material cutting
certified round steel from Baosteel
CNC turning & milling
tolerances within 0.008 mm
Heat treatment
vacuum hardening, no decarburization
FOUNDED COMPANY
Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae.
Lapping
manual finish on sealing cone (leakage < 2 drops/min at 90% set pressure)
Spring calibration
every spring is tested on a digital force tester
Assembly
clean area, torque‑controlled locknut
Final test
100% pressure‑flow test; each DBDS direct acting pressure relief valve receives a stamped serial number and test record
Services We Provide for Every DBDS Order
OEM customization – supply your drawing; we modify port threads, seal material, or adjustment type
Free technical support – our engineers help select the correct spring range for your flow and pressure
Fast logistics – stock orders ship in 2‑3 business days; custom orders 10‑14 days
12‑month warranty against B/L date – covers manufacturing defects only, but we have a <0.3% return rate
Packing – antirust oil + plastic bag + foam‑lined carton for small units; plywood case for bulk
Phone Number
+86 19103298301
nadia.laiye0909@gmail.com
One-stop Hydraulic Valve Factory in China
Hot Tags: dbds direct acting pressure relief valve rexroth replacement, China dbds direct acting pressure relief valve rexroth replacement, manufacturers, suppliers, factory
