3/8" 2-Way Ball Valve with Pneumatic Actuator & Position Feedback
3/8 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. Compatible with 12mm OD tubing.
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 3/8" ball valve with pneumatic actuator used for?
A 3/8 inch pneumatic actuated ball valve is used for automated on/off control in hydraulic test systems, pneumatic circuits, process control, and small-bore pipeline applications. With a 12mm line size compatibility, it is ideal for hydraulic oil pressure leak test benches, automated testing machinery, instrumentation panels, and process control skids requiring fast, reliable switching with fail-safe capability.
What is the difference between 1/4" and 3/8" actuated ball valves?
The primary difference is the bore size and flow capacity. A 3/8 inch (DN10) ball valve has a larger bore than 1/4 inch (DN8), providing approximately 50% more flow capacity. The 3/8 inch size is compatible with 12mm OD tubing while 1/4 inch suits 10mm lines. Both share the same actuator specifications, fail-safe function, and position feedback features. Choose 3/8 inch when your line size is 12mm or when higher flow rates are needed.
Can this 3/8" valve handle SAE 10 hydraulic oil at 100 bar?
Yes, when specified with forged stainless steel (SS316/SS304) or carbon steel (A105) body, this 3/8 inch ball valve is rated for 100 bar (1450 PSI) working pressure. The RPTFE (Reinforced PTFE) seat ensures API 598 zero leakage with SAE 10 hydraulic oil at temperatures up to 90°C. The seat material resists extrusion under high differential pressure.
What air pressure is needed to operate the pneumatic actuator?
The dual scotch yoke pneumatic actuator requires 80 PSI (5.5 bar) supply air pressure. It operates reliably with standard 5 bar plant air supply. The double acting function uses air pressure for both opening and closing, while the spring return ensures fail-to-close on air loss. A 24VDC solenoid valve is included for electrical control.
Does Supreme Valves supply this valve with complete documentation?
Yes, Supreme Valves India provides complete documentation including: Material Test Certificates (MTC/EN 10204 3.1), Hydrostatic Test Certificate (API 598), Dimensional Inspection Report, Actuator test certificate, Solenoid valve data sheet, Proximity switch wiring diagram, and GA drawing. Third-party inspection (TPI) can be arranged through Bureau Veritas, TUV, or Lloyds if required.