Adopting stardand: JB/LQ2075, JB/LQ20703 The exhaust orifice shouldn't connect with throttle valve. Slide valve type structure, taking the connect plate pipe type installation. Backouted connect plate, can be used to assemble with conflux plate. Produces K25D serie, K25D2H, K35D2H, two-position three-way solenoid walve, three-position five way series,adopting 0201 coil, also can use 0270,0271 ex-proof coil