The Rexroth DBDS6P1X/400 (material no. R900423731) is a genuine Bosch Rexroth pressure relief valve: size 6, P → T, with mechanical actuation.
Direct-operated relief valves of the DBD type are the basic safety element of a hydraulic circuit; the pressure stage in the type code defines the highest pressure the valve can be set to.
More Rexroth hydraulic and linear-motion parts: Bosch Rexroth range.
Rexroth describes it as follows: “Industrial hydraulic valve in a high performance range. Reliable pressure limitation to setting”
Technical data
| Material number | R900423731 |
|---|---|
| Type code | DBDS6P1X/400 |
| Operating pressure, max. | 400 bar |
| Max. flow | 50 l/min |
| Spool symbol | P → T |
| Type of connection | Subplate mounting |
| Size | 6 |
| Type of actuation | with mechanical actuation |
| Number of ports | 2 |
| Number of switching positions | 2 |
| Seals | NBR |
| Weight | 1.63 kg |
| Hydraulic fluids (per Rexroth) | HLP, HLPD, HVLP, HVLPD, HFC (Fuchs: Hydrotherm 46M, Renosafe 500; Petrofer: Ultra Safe 620; Houghton: Safe 620; Union: Carbide HP5046), HL |
| Product family | DBD.6-30 |
| Data sheet | RD25402 |
| Brand | Bosch Rexroth |
| Condition | New, original |
Design features, as listed by Rexroth
- Hexagon with protective cap
- Proportional pressure valve in poppet seat design
- Direct actuated
Typical applications
- Pump and power-unit protection
- Secondary pressure limiting on actuator lines
- Presses and clamping circuits
- Test benches
- Replacement of a worn relief valve
Compatibility and replacement
Order with the 10-character material number R900423731; in Rexroth codes every character (size, pressure stage, adjustment element, options and seals) changes the part, so the type code DBDS6P1X/400 on the nameplate should match exactly.
If the nameplate of the old part is unreadable, send us a photo of the part or the machine hydraulic diagram and we will identify the matching Rexroth material number.
Before you replace it
- Adjustment element
- Maximum flow of the circuit
- Size and connection (subplate, threaded body or cartridge cavity)
Frequently asked questions
Which seal material is fitted?
NBR, according to the Bosch Rexroth product data.
What is the maximum flow?
50 l/min, according to the Bosch Rexroth product data.
What is the maximum operating pressure?
400 bar, according to the Bosch Rexroth product data.
Which hydraulic fluids can it be used with?
Rexroth lists HLP, HLPD, HVLP, HVLPD, HFC (Fuchs: Hydrotherm 46M, Renosafe 500; Petrofer: Ultra Safe 620; Houghton: Safe 620; Union: Carbide HP5046), HL fluids for this part; check that the seal material suits your fluid.
Which spool symbol does it have?
P → T, according to the Bosch Rexroth product data.
Is it new and original?
Yes. We supply new, original parts in the manufacturer packaging, with a 1-year warranty.
Can I get a price and delivery time?
Prices are quoted on request. Send the order number, quantity and delivery country on WhatsApp and we will reply with price and delivery time; air shipping is usually 5 to 7 days once ready, with a 1-year warranty.
Ordering tips
Send us the full order number from the label of the old part, or a clear photo of the label, together with the quantity you need. We check the number against the current manufacturer data before we quote and tell you if there is a newer replacement.
RendatSP ships from Yiwu, China, to factories worldwide; air delivery usually takes 5 to 7 days once the part is ready. The part is new and original with a 1-year warranty (shipping, payment and warranty). For a quotation, message us on WhatsApp with the order number and quantity. We also have agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
