The use of ZZYP regulating valve

A ZZYP high-pressure self-operated pressure regulating valve worm gear transmission device adjustment and wiring method 1. Open the electrical switch box cover, connect the core wire of the cable to the corresponding terminal according to the electrical control requirements, seal the cable inlet, and fix the cable at the same time. In order to prevent damage to the cable connection when the external force is pulled. 2. When the valve is in the 'fully closed' position, turn the lower closing cam clockwise, it is the cam that just touches the micro switch (a clicking sound can be heard), and then tighten the screw on the cam to fix the cam. 3. When the valve is in the 'full open' position, turn the upper opening cam counterclockwise, and adjust the opening cam in the same way as above. 4. Adjust the limit screw. When the valve is in the 'fully closed' or 'fully open' position, the limit screw should not be just on the limit plane of the worm gear, but should leave a certain gap, and then tighten the limit lock nut on the screw. 5. Cover the electrical switch box cover, when the valve is in the 'fully closed' position, make the pointer of the opening indicator point to the '0' scale on the dial, and tighten the screw to fix the pointer. 2. Precautions for the use of ZZYP high-pressure self-operated pressure regulating valve 1. The ZZYP high-pressure self-operated pressure regulating valve can be installed on the pipeline at any position in the space. 2. The installation position of ZZYP high-pressure self-operated pressure regulating valve should ensure the convenience of use, maintenance and replacement. 3. The ZZYP high-pressure self-operated pressure regulating valve can be installed regardless of the direction of medium flow in the pipeline, that is, bidirectional flow is allowed. 4. The ZZYP high-pressure self-operated pressure regulating valve should be stored in an indoor dry place before installation, and the valve plate should be slightly opened by 4° to 5°. 5. The following work should be done before installation of ZZYP high-pressure self-operated pressure regulating valve: a. Carefully check whether the use condition is in line with the performance specifications of this ZZYP high-pressure self-operated pressure regulating valve. b. Clean the inner cavity and sealing surface, no dirt is allowed to adhere, and do not open and close the butterfly plate before cleaning. c. Check whether the transmission device is reliably connected with the upper flange of the ZZYP high-pressure self-operated pressure regulating valve. 6. When the ZZYP high-pressure self-operated pressure regulating valve clamps the pipeline, pay attention to whether the connection force is uniform and reliable. 7. After the ZZYP high-pressure self-operated pressure regulating valve is installed, the valve plate must be in the open position when the strength of the pipeline is tested. 8. After the ZZYP high-pressure self-operated pressure regulating valve is installed, it should be checked regularly. The main inspection items are as follows: a. Whether the valve seat and O-ring of the ZZYP high-pressure self-operated pressure regulating valve are damaged. b. The sealing performance of the sealing surface of the valve plate. c. After the ZZYP high-pressure self-operated pressure regulating valve is repaired and assembled, there shall be no jamming phenomenon when opening and closing. d. After the ZZYP high-pressure self-operated pressure regulating valve is repaired and assembled, the sealing performance test shall be carried out as required. f. After each maintenance, the situation should be recorded in detail for future reference.