1/2" 2-Way Ball Valve with Pneumatic Actuator & Position Feedback
1/2 inch pneumatic actuated ball valve with dual scotch yoke actuator, double acting with fail-to-close safety. FNPT connection, RPTFE seat, API 598 zero leakage. Includes 2x solid-state 24VDC proximity switches for open/closed position feedback. Highest flow capacity in the series.
Quick Specifications
Key Applications
Materials of Construction (MOC)
| Component | Material Specification |
|---|---|
| Body & Bonnet | Ductile Iron (ASTM A536 / EN-GJS-400-15) |
| Stem / Spindle | SS 410 / SS 420 |
| Seat / Trim | EPDM / NBR / Bronze |
Technical Specifications
| Parameter | Specification / Standard |
|---|---|
| Manufacturing / Design Standard | EN 1171 / AWWA C509 / BS 5163 |
| Testing Standard | API 598 / EN 12266-1 |
| Pressure Rating | PN16 / PN25 |
Frequently Asked Questions
What is a 1/2" ball valve with pneumatic actuator used for?
A 1/2 inch (DN15) pneumatic actuated ball valve is used for automated on/off control in hydraulic test systems, process automation, pneumatic and hydraulic circuits, and industrial pipeline applications. The 1/2 inch size provides the highest flow capacity in this series, making it suitable for main supply lines, higher flow-rate applications, and hydraulic oil pressure leak test systems requiring faster cycle times.
What is the Cv (flow coefficient) of a 1/2" ball valve?
A 1/2 inch full-bore ball valve typically has a Cv of 8-12 depending on the design. This provides significantly more flow capacity than the 1/4 inch (Cv 2-3) and 3/8 inch (Cv 4-6) variants. The higher Cv means faster filling and draining cycles in hydraulic test systems, reducing overall test cycle time.
Can this 1/2" valve handle 100 bar hydraulic oil pressure at 90°C?
Yes, when specified with forged stainless steel (SS316/SS304) or carbon steel (A105) body, this 1/2 inch ball valve is rated for 100 bar (1450 PSI) working pressure at 90°C. The RPTFE (Reinforced PTFE) seat provides API 598 zero leakage with SAE 10 hydraulic oil. RPTFE resists seat extrusion at high differential pressures better than standard PTFE.
What actuator torque is needed for a 1/2" ball valve at 100 bar?
A 1/2 inch ball valve at 100 bar typically requires 5-8 Nm of torque. The dual scotch yoke pneumatic actuator supplied with this assembly provides adequate torque at 5 bar (80 PSI) air supply with a safety factor of 1.5-2x. The actuator is sized to ensure reliable operation even under maximum differential pressure conditions.
Does Supreme Valves supply all three sizes (1/4", 3/8", 1/2") as a set?
Yes, Supreme Valves India supplies all three sizes as individual units or as a complete set for hydraulic leak test systems. All three sizes share the same actuator platform, solenoid valve specification (24VDC), and proximity switch configuration (2x solid-state, 24VDC) for consistent PLC integration across your entire test bench. Volume pricing is available for sets of 5 units per size.