
A modular relief valve is a sandwich plate that sits between the subplate and the directional valve. It limits pressure on one port without a separate valve, extra ports or extra hoses.
P to T caps the whole station — the usual choice for a single function fed from a shared manifold. A to T or B to T caps one side of the actuator only, which is how you protect a cylinder that can be over-pressured in one direction while leaving the other at full system pressure.
| Part number | Port | Adjustment range | Max flow | Bolt length |
| RV-02M-P-1-B | Cetop 3, P to T | 7 – 70 bar | 35 L/min | 40 mm |
| RV-02M-P-2-B | Cetop 3, P to T | 35 – 140 bar | 35 L/min | 40 mm |
| RV-02M-P-3-B | Cetop 3, P to T | 70 – 210 bar | 35 L/min | 40 mm |
| RV-02M-A-1-B | Cetop 3, A to T | 7 – 70 bar | 35 L/min | 40 mm |
| RV-02M-A-2-B | Cetop 3, A to T | 35 – 140 bar | 35 L/min | 40 mm |
| RV-02M-A-3-B | Cetop 3, A to T | 70 – 210 bar | 35 L/min | 40 mm |
| RV-02M-B-1-B | Cetop 3, B to T | 7 – 70 bar | 35 L/min | 40 mm |
| RV-02M-B-2-B | Cetop 3, B to T | 35 – 140 bar | 35 L/min | 40 mm |
| RV-02M-B-3-B | Cetop 3, B to T | 70 – 210 bar | 35 L/min | 40 mm |
| RV-03M-P-3-B | Cetop 5, P to T | 70 – 210 bar | 70 L/min | 55 mm |
Also available: DY-02-W-21 and DY-02-W-31.5 relieve both A and B to tank from one plate (210 bar and 315 bar), and VLP40DFC302A / VLP40DIFC302A give A&B-to-T and crossline relief at 250 bar / 40 L/min.
Modular valves stack. Each plate you add makes the assembly taller, so the mounting bolts must be longer — the bolt length in the table is what that single plate adds. Add up your stack and order the matching SHCS bolt set; they are not included.