4″ ALUMINUM INTERNAL AIR EMERGENCY VALVE (3″ AIR CYLINDER) – 90 DEGREE ELBOW (PTFE/FLUOROSILICONE SEALS, GROOVED)

Betts internal air emergency valve meets HM183 requirements for an internal self-closing stop valve. Body is constructed of aluminum and incorporates a shear section that satisfies 49CFR178.345-8 tested per TTMA RP 84. The 1/8” NPT air inlet is designed to shear and close the valve in the event of an under-ride accident.

See the main product page for full details and other available configurations.

Specifications

• Part Number: EV46911ALTS038
• Seal / Trim Option: Teflon product contact seals, fluorosilicone interior seals, and polyurethane air piston seal.
• Outlet: Grooved
• Inlet Flange (4" Sump): B.C: 7.25" [184 mm] 8 Holes: .563" Dia [14.3 mm]
• Outlet Flange: 4" GROOVED O.D. 4.5" [114.3 mm]
• Dimensions: A: 4.38" [111.3 mm] B: 6.25 [158.8mm]
• F b-Max Per TTMA RP 86: 44,000 lbs. [20,140 kg]
• Weight: 8.7 lbs