DA vs spring-return actuators?
Double-acting needs air to open and close; spring-return fail-safe opens or closes on air failure per fail-open/fail-close selection.
Direct answer · 2026-11-02
Supreme Valves India quotes pneumatic actuated ball and butterfly valve assemblies — double-acting or spring-return — with solenoid, positioner, and switchbox options as specified.
Attach BOQ for line-by-line techno-commercial offer.
FAQ
Can you include positioners?
Yes. Pneumatic or electro-pneumatic positioners and limit switches are packaged when listed on the RFQ.
Are SIL/ESD packages available?
Partial-stroke and ESD-oriented assemblies can be scoped when SIL requirements are stated.
Related
RFQ checklist
Send size, pressure class (PN / Class), MOC, end connection, quantity, and delivery city via contact.html. Related: quotation checklist · lead hub · how to buy · RFQ landings.
Actuated packages
Pneumatic and electric actuation is quoted with the valve when fail position, supply pressure/voltage, and torque are stated. Solenoid and limit-switch accessories are optional line items.
Related: Ball valves · Soft vs metal seat · 3-piece vs 1-piece · Butterfly · Wafer butterfly · Wafer vs lug · Contact / RFQ