The valves like PE 4 way valves,But we have patent and supply to Carreri,York,DB,Harier,LS,Daikin,Midea. Refrigerant apply:R134A,R22,R410a,R404,R12,R407C, 1 All connections are copper welded. 2 Available full-size porting maintains unrestricted gas flow. 3 Machined steel housing built to exacting tolerances of 0.005mm. 4 The sign eliminate the problem of inside leakage. 5 Careful selection guarantees the quality. 6.All parts have CE Approval. |