20 Liquid/Vapor ACME Valves All products are Pre-Applied with sealant on the inlet thread. Vapor Equalization Valve: 66.1206 Upper back check valve and lower excess flow valve combined. Other Items: 24 Fixed Liquid Level Gauges 17 Service Valves for ASME & DOT Containers / Fuel Line Application 13 Nurse Tank valves – NH3 Service << Return to Items