China factories

Chat Now Send Email
China factory - Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.

Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.

  • China ,Fujian
  • Verified Supplier
  1. Home
  2. Products
  3. About Us
  4. Contact Us

Leave a Message

we will call you back quickly!

Submit Requirement
China R900423720 DBDS6G1X/315 Rexroth Germany overflow valve
China R900423720 DBDS6G1X/315 Rexroth Germany overflow valve

  1. China R900423720 DBDS6G1X/315 Rexroth Germany overflow valve

R900423720 DBDS6G1X/315 Rexroth Germany overflow valve

  1. MOQ: 1
  2. Price:
  3. Get Latest Price
Packaging Details wooden box
Max. Adjustable Relief Pressure 315 bar (31.5 MPa)
Delivery Time 2 weeks
Payment Terms Western Union,T/T,D/P,D/A,L/C
Supply Ability 100
Model DBDS 6 G1X / 315
Part Number R900423720
Certifiion ISO
Valve Type Direct-acting seat-type pressure relief valve (DBD series)
Nominal Size (NG) 6
Place of Origin Germany
Model Number R900423720 DBDS6G1X/315
Brand Name Rexroth

View Detail Information

Inquiry by Email Get Latest Price
Chat online Now Ask for best deal
  1. Product Details
  2. Company Details

Product Specification

Packaging Details wooden box Max. Adjustable Relief Pressure 315 bar (31.5 MPa)
Delivery Time 2 weeks Payment Terms Western Union,T/T,D/P,D/A,L/C
Supply Ability 100 Model DBDS 6 G1X / 315
Part Number R900423720 Certifiion ISO
Valve Type Direct-acting seat-type pressure relief valve (DBD series) Nominal Size (NG) 6
Place of Origin Germany Model Number R900423720 DBDS6G1X/315
Brand Name Rexroth
High Light Rexroth overflow valve DBDS6G1XRexroth hydraulic valve with warrantyDBDS6G1X overflow valve 315 bar
R900423720 DBDS6G1X/315 Rexroth Germany Overflow Valve
Product Overview

Direct-acting seat-type pressure relief valve from the DBD series, designed for reliable pressure control in hydraulic systems.

Technical Specifiions
ParameterValue
Part NumberR900423720
ModelDBDS 6 G1X / 315
Valve TypeDirect-acting seat-type pressure relief valve (DBD series)
Nominal Size (NG)6
Connection TypeScrew-in cartridge / threaded for manifold block (G = threaded connection, pipe thread G 1/4" ISO 228-1 on the cavity)
Adjustment TypeHexagon socket setscrew with protective cap (P1 equivalent, adjustable by Allen key), component series 1X
Max. Adjustable Relief Pressure315 bar (31.5 MPa)
Max. Operating Pressure (P-port)630 bar
Max. Flow Rate (Qmax)approx. 50 L/min (for Size 6 DBD)
Number of Ports2 (P → T)
Seal MaterialNBR (standard)
Hydraulic FluidMineral oil HL, HLP per DIN 51524; HFC (water-glycol); HLPD, HVLP, HVLPD
Fluid Temperature Range-30 °C to +80 °C (NBR seals)
Viscosity Range10 - 800 mm²/s
Weight (approx.)1.56 kg
Body MaterialSteel, zinc-plated
R900423720 DBDS6G1X/315 Rexroth overflow valve product image
Frequently Asked Questions
Q1: Is DBDS6G1X/315 pilot-operated or direct-acting?
It is a direct-acting seat valve (DBD series). The ball/poppet opens immediately when system pressure overcomes the spring preload — no pilot stage is involved.
Q2: What does "G1X / 315" mean in the model?
  • G = designed for threaded/screw-in cartridge installation into a manifold block with G 1/4" threaded cavity
  • 1X = component series index (dimensionally interchangeable within series 1X)
  • /315 = spring pressure stage — maximum adjustable relief pressure is 315 bar
Q3: How do I install this valve?
The valve screws into a prepared manifold block cavity with G 1/4" ISO 228-1 threaded port. Ensure the P-port in the block aligns with system pressure and T-port connects to tank. Use appropriate sealing (O-ring on the cartridge shoulder or thread sealant on the threaded portion as per the cavity drawing). Torque typically approx. 45-50 N·m — refer to the official Rexroth mounting drawing for your specific cavity.
Q4: How do I adjust the relief pressure?
With the system depressurized, remove the protective cap, turn the internal setscrew with an Allen key — clockwise to increase, counterclockwise to decrease. Reinstall the cap after setting and verify with a pressure gauge at the P-port. Factory preset is typically near the low end of the spring range; always re-set on-site.
Q5: Does T-port backpressure affect the set pressure?
Yes. Backpressure at the tank side adds 1:1 to the cracking/relief pressure because the spring chamber drains internally to T. Keep T-line backpressure minimal or subtract it from your desired setpoint during adjustment.
Q6: What if the valve does not reach set pressure or chatters?
  • Low/no pressure: Wrong spring grade, high T-backpressure, or severely contaminated oil causing poppet sticking
  • Chatter / noise: Air in the system, excessive flow beyond Qmax for Size 6, or remote piping resonance — bleed air from the system and confirm flow ≤50 L/min
  • Leakage in closed position: Damaged seating surface or contaminated oil trapped in the seat — clean or replace the cartridge
Q7: Can it be used with biodegradable or water-based fluid?
Standard NBR seals are approved for HFC (water-glycol). For HEES/HETG biodegradable oils or HFD (phosphate ester), FKM (Viton) seals are required — order the "V" seal variant if needed and verify fluid compatibility.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Exporter

  • Total Annual:

    1 million-10 millon

  • Employee Number:

    >50

  • Ecer Certification:

    Verified Supplier

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...

+ Read More

Get in touch with us

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

Leave a Message, we will call you back quickly!

Email

Check your email

Phone Number

Check your phone number

Requirement Details

Your message must be between 20-3,000 characters!

Submit Requirement