Internally piloted reversing valve for heat pump

摘要: An internally piloted reversing refrigerant valve for selectively porting fluid from a compressor into an air-conditioning system doubling as heat pump through five-ported of which ports one, two, three and four are employed with when is in first position, while the position changed to second reversed three, two five system, said so constructed that allow be delivered refrigeration return housing provided slidably movable piston assembly pair operators including means incorporated therein complete reversal delivery third facilitating simple serve flow patterns easy shifting operation wherein pressure internal pilot performs change using high subsequently exhausted low side served by this valve.