acrylonitrile butadiene styrene actuator american english aspin valve automobile backwater ball valve bibcock bicycle blast valve brass british english bronze bunker butterfly valve camshaft check valve chest tube choke valve compression fitting diaphragm valve diesel engine diving regulator double check valve duckbill valve electric motor endobronchial valve exhaust fallout shelter flow control valve fluid flutter valve gas gas cylinder gate valve globe valve hastelloy heart valve industry iron leaf valve leak liquid military needle valve nickel pilot valve piping piping and instrumentation diagram piping and plumbing fittings piston valve plug valve plumbing pneumothorax polypropylene poppet valve pressure pressure regulator presta valve reed valve refrigerant regulator relief valve rotary valve rupture disc saddle valve safety valve schrader valve siphon sleeve valve solenoid solenoid valve solid stainless steel steel stellite stopcock symbol temperature thermal expansion valve tire titanium toilet trap primer valve corporation valve stem welding zone valve