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    Pneumatic and hydraulic component manufacturer and supplier

    We specialize in seven major product lines, including pneumatic valves for petroleum machinery, air-source treatment components, control components, actuating components, auxiliary components, pneumatic tools, and hydraulic components—totaling over 1,000 varieties.

    qy494

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    valve pneumatic tool accessories QY494 One-Way Air-Flow valve zhpc


    The QY494 unidirectional gas-guide tap is an auxiliary component used for pipeline connection and calibration. It serves as a coupling device that connects a stationary gas pipeline to a rotating gas pipeline. The assembly consists of a housing, a central tube (orifice tube), bearings, sealing rings, springs, and an inlet-end cover. The central tube is connected to the rotating shaft, and under spring pressure, the sealing rings make a tight seal against the end face of the central tube, thereby forming a passage. Compressed air enters through the inlet port and exits via this passage.

    valve workover rig parts QY494 One-Way Air-Flow valve zhpc


    The QY494 unidirectional gas-guide tap is an auxiliary component used for pipeline connection and calibration. It serves as a coupling device that connects a stationary gas pipeline to a rotating gas pipeline. The assembly consists of a housing, a central tube (orifice tube), bearings, sealing rings, springs, and an inlet-end cover. The central tube is connected to the rotating shaft, and under spring pressure, the sealing rings make a tight seal against the end face of the central tube, thereby forming a passage. Compressed air enters through the inlet port and exits via this passage.

    valve workover rig parts QY494 One-Way Air-Flow Tap


    The QY494 unidirectional gas-guide tap is an auxiliary component used for pipeline connection and calibration. It serves as a coupling device that connects a stationary gas pipeline to a rotating gas pipeline. The assembly consists of a housing, a central tube (orifice tube), bearings, sealing rings, springs, and an inlet-end cover. The central tube is connected to the rotating shaft, and under spring pressure, the sealing rings make a tight seal against the end face of the central tube, thereby forming a passage. Compressed air enters through the inlet port and exits via this passage.