Industrial High Precision Quick Couplings, including hydraulic, pneumatic refrigeration refrigerant & dry break leak-free series. Available in carbon steel zinc plated, brass, 304/316 stainless steel. Adopts precision ball locking structure for one-hand plug-in connection without tools. Built-in one-way check valve automatically seals fluid when disconnected to prevent oil/gas/refrigerant leakage, double-layer high & low temperature resistant FKM sealing rings for long-lasting tight seal under high pressure. Complete bore sizes & BSP/NPT/G thread types, compatible with copper tubes, rubber hoses and PU air hoses. Widely used in refrigeration units, hydraulic machinery, pneumatic tools, cooling water lines, construction machinery oil circuits with frequent connection. Custom flat-face dry break, anti-twist & high-flow heavy-duty models available.
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