The Bosch Rexroth R901086070 (type Z1S6A05-4X/V) is a genuine check valve (sandwich plate) with NG6, 350 bar, 40 l/min. RendatSP supplies it new and original, ready to ship worldwide.
Rexroth sandwich-plate check valves stack between a directional valve and its subplate to block flow in one direction or to hold a load safely. They are typical on presses, clamping circuits and injection moulding machines. Using the identical type code keeps the stack height, port pattern and cracking pressure unchanged.
Technical Specifications
| Brand | Bosch Rexroth |
|---|---|
| Material number | R901086070 |
| Type designation | Z1S6A05-4X/V |
| Type | Check valve, sandwich plate design |
| Size | NG6 (CETOP 3) |
| Series | 4X |
| Mounting pattern | ISO 4401-03-02-0-05 |
| Max operating pressure | 350 bar |
| Max flow | 40 l/min |
| Check direction | A2 → A1 (check in channel A) |
| Cracking pressure | 0.5 bar (code 05) |
| Seals | FKM (V) |
| Weight | 0.78 kg |
| Hydraulic fluids | HL, HLP, HLPD, HVLP, HVLPD, HETG, HEES, HEPG, HFDU, HFDR |
| Condition | New, original, factory packaged |
How to Read the Type Code Z1S6A05-4X/V
| Z | Sandwich plate |
|---|---|
| 1S | Check valve |
| 6 | Size 6 |
| A | Check in channel A |
| 05 | Cracking pressure 0.5 bar |
| 4X | Component series 40-49 |
| V | FKM seals |
Rexroth type codes are configuration-specific: a different letter or number in any position gives a different material number. Always compare the full code with the nameplate of your original part.
Typical Applications
Free flow one way / blocking in channel A in stacked NG6 valve assemblies. Supplied to factories, OEMs and maintenance teams in Saudi Arabia, the UAE, Iraq, Qatar, Kuwait, Oman, Egypt and worldwide.
Related Parts
- Bolt kit for stacking with 4WE6
- Seal kit Z1S6
Frequently Asked Questions
Is the R901086070 a genuine Bosch Rexroth part?
Yes. RendatSP supplies the R901086070 as a new, original Bosch Rexroth part in factory packaging. We confirm the exact type code against your nameplate before shipping.
Where is a sandwich check valve installed?
Between the directional valve and the subplate, using longer mounting bolts. The port pattern follows ISO 4401 for the valve size.
What happens if I use a different cracking pressure?
The cracking pressure affects how the circuit holds and releases oil. Always match the code on the original valve.
Do you supply the longer mounting bolts?
Bolt kits are available on request; tell us the full valve stack so we can quote the right length.
Request a Quotation
Send us the part number R901086070, the required quantity and a photo of the nameplate if available. We reply with price and delivery time within hours and ship worldwide by express courier. Browse all Bosch Rexroth parts.
