Walvoil VABAL Cross Line Counterbalance Valve – 1/2" BSP, 70 L/min, 350 Bar, Pilot Ratio 1:7
1570031102
Product Features:
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Walvoil VABAL Cross Line Counterbalance Valve – 1/2" BSP, 70 L/min, 350 Bar, Pilot Ratio 1:7
Walvoil VABAL 12/TR.S.p7 counterbalance valve is a high-performance solution designed for precise motion control, load holding, and hydraulic safety in demanding mobile and industrial applications. Engineered as a cross-line, load-sensitive valve, it ensures stable and controlled actuator movement while preventing uncontrolled load descent.
This double-acting counterbalance valve locks the actuator position in one direction while allowing free flow in the opposite direction. The opening is controlled by a combination of pilot pressure and a preset pressure setting, delivering smooth, responsive, and predictable operation under varying load conditions.
Built with a durable aluminium body and featuring G1/2 ports, the valve offers a robust yet lightweight solution for hydraulic systems. With a pilot ratio of 1:7, it provides excellent modulation and control, particularly in applications requiring stable handling of overrunning loads.
The valve supports a nominal flow rate of 70 l/min and operates within a pressure setting range of 50–350 bar, with a standard setting of 280 bar at 5 l/min. Its load-sensitive design enhances efficiency and system responsiveness, making it ideal for precision hydraulic control.
Technical Specifications
| Specification | Details |
|---|---|
| Valve type | Double counterbalance valve (cross-line, load sensitive) |
| Model | VABAL 12/TR.S.p7 |
| Walvoil code | 1570031102 |
| Body material | Aluminium |
| Port size | G1/2 (BSP) |
| Nominal flow rate | 70 l/min |
| Maximum pressure | 350 bar (steel body rating), aluminium up to 210 bar |
| Pilot ratio | 1:7 |
| Pressure setting range | 50–350 bar |
| Standard setting | 280 bar @ 5 l/min |
| Oil leakage | 0.25 cm³/min at 210 bar (80% of pressure setting) |
| Fluid | Mineral based oil |
| Viscosity range | 10 to 200 cSt |
| Fluid temperature | -20°C to 80°C (with NBR seals) |
| Environmental temperature | -40°C to 100°C |
| Max contamination level | ISO 4406: 18/16/13 |
Common Applications
The Walvoil VABAL 12/TR.S.p7 counterbalance valve is commonly used in hydraulic systems where load control, safety, and smooth motion are critical. Typical applications include:
- Hydraulic cylinders – controlling overrunning loads and maintaining stable positioning
- Mobile machinery – enhancing safety and precision in lifting and positioning functions
- Construction equipment – managing suspended loads and preventing sudden movements
- Agricultural machinery – stabilising booms, arms, and attachments
- Industrial systems – ensuring controlled actuator motion and pressure stability
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United Kingdom delivery rates & estimates
| Service | Price | Terms |
|---|---|---|
| FREE Delivery | FREE | Free UK delivery is available for orders over £99.99+ VAT. Delivered by close of business next working day. |
| Express Delivery | £9.99 + VAT | UK Mainland delivery for orders under £99.99 + VAT. Delivered by close of business next working day. |
| Express 9am | £42.95 + VAT | Delivered by 9am next working day. |
| Express 12pm | £20.95 + VAT | Delivered by 12pm next working day. |
| Channel Islands | ||
| Standard Delivery | £20.95 + VAT | Delivery in 2–3 working days. |
| UK Highlands & Isles | ||
| Order value below £99.99 + VAT | £31.95 + VAT | Delivery in 2–3 working days. |
| Order value over £99.99 + VAT | £28.95 + VAT | Delivery in 2–3 working days. |
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