FV-一个气动紧急阀门

FV-A Pneumatic Emergency Valve 1) AILE s Pneumatic Emergency Valve now make product handling safer. 2) The emergency valve has a shear groove that meets 49 CFR 178.345-8. The seat area of the valve is located inside of the tank shell as required by DOT regulations.The valve gives you the advantage of a faster flow rate while fitting a standard 4TTMA sump. 3) The high flow rate is established by a full opening throat area. Emergency valves are available in 90 degree elbow type 4 TTMA Flanges and mechanical or air assisted. 4) Specifically designed for ease of maintenance, high flow and durability. 5) The simplistic design of this valve makes it ideally suited to oil companies and transporters of petroleum products who require a tough, reliable, high flow emergency valve. 6) Features: a. High Flow Rate b. Fits Std 4TTMA Sump c. Shear section per TTMA, RP84-92and meets DOT 49 CFR 178.345-8 d. Force ratings from TTMA RP86-92 e. Shear Groove meets DOT 406 requirements f. Optional External Air Cylinder available g. Available in flanged version h. Seals-viton i. High quality die cast body and component materials, to international standards, are used for durability and performance. j. Lightweight aluminium construction for increased payloads. k. High lift poppet for maximum flow. l. External shear groove meets TTMA and NTTC DOT 406 to limit product spillage in the event of an accident. m. Closure by self-centring plunger and durable compression spring. n. Brass cam with bearing boot on plunger stem for smooth operation and extended life. o. Double O-ring seals on camshaft for improved sealing and ease of maintenance. p. Push Rod Adaptor or Eye Bolt available for mechanical vent or top operation.Metting EN 13308:2002 Standard