Single Effect Overcenter Valve, Choked Pilotage
A single-acting counterbalance valve with integral choked pilotage — the pilot orifice dampens pressure spikes during opening, reducing oscillation in systems prone to load-induced instability. Steel manifold, rated to 350 bar.
Key Specifications:
- Valve type: Single effect overcenter — choked pilotage
- Max operating pressure: 350 bar
- Port connections V & C: Female BSPP — 3/8", 1/2", or 3/4"
- Max flow: 40 l/min (3/8"), 60 l/min (1/2"), 90 l/min (3/4")
- Pilot ratio: 4.25:1 (3/8" and 1/2") / 6.25:1 (3/4")
- Setting range: X series 30–210 bar / Y series 60–350 bar
- Standard setting: 200 bar (X) / 300 bar (Y)
- Fluid temperature: −20 °C to +90 °C
- Ambient temperature: −20 °C to +50 °C
- Filtration standard: ISO 4406
- Standard seals: NBR 70 Shore A | Viton available on request
- Manifold material: Steel
- Adjustment options: Steel cap (std) or tamper-proof cap
| Port Size (V-C) | ØF (mm) | Weight Steel (kg) | Max Flow (l/min) | Pilot Ratio |
| 3/8" BSPP | 8.5 | 1.25 | 40 | 4.25:1 |
| 1/2" BSPP | 8.5 | 1.2 | 60 | 4.25:1 |
| 3/4" BSPP | 8.5 | 2.3 | 90 | 6.25:1 |








