Single Effect Overcenter Flangeable Valve, 28×28 mm Fixing
A single-acting counterbalance valve built for direct flange mounting using a 28×28 mm bolt pattern. Zinc plated steel body rated to 350 bar. Suitable for motor and cylinder circuit applications where a close-coupled, leak-free connection is preferred.
Key Specifications:
- Valve type: Single effect overcenter — flangeable, 28×28 mm fixing
- Max operating pressure: 350 bar
- Port connections V & C: Female BSPP — 1/4" or 3/8"
- Pilot port: 1/4" BSPP (female, internal pilot — also exposed for external use)
- Max flow: 40 l/min (1/4"), 60 l/min (3/8")
- Standard pilot ratio: 4.25:1 (8:1 and 11:1 available on request)
- Setting range: X series 50–210 bar / Y series 100–350 bar
- Standard setting: 200 bar
- 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: Zinc plated steel
Adjustment options: No cap (std) or tamper-proof cap
| Port Size (V) | Pilot Port | Weight (kg) | Max Flow (l/min) | Pilot Ratio |
| 1/4" BSPP | 1/4" BSPP | 1.16 | 40 | 4.25:1 |
| 3/8" BSPP | 1/4" BSPP | 1.14 | 60 | 4.25:1 |
