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Vacuum isolation valve installation and maintenance
Installation steps 1. Check the valve chamber before installation and sealing surface and other parts, do not allow dirt or grit attached; 2. The bolts of the connection parts, require uniform tightening; 3. Check the packing parts require compression, both to ensure that packing Of the sealing, but also to ensure that the gate open flexible; 4 users in the installation of the valve, the valve must be proofed the model, the connection size and pay attention to the flow of media to ensure consistency with the requirements of the valve; 5 users in the installation of the valve must be reserved Valve drive the necessary space; 6. Drive wiring according to the road map; 7. Gate valve must be regularly maintained, not free to crash and squeeze, so as not to affect the seal. Matters needing attention Handwheel, handle and transmission mechanism are not allowed for lifting, and no collision. Double gate valve should be installed vertically (ie stem in a vertical position, the hand wheel at the top). The gate valve with bypass valve should open the bypass valve before opening (to balance the pressure difference between inlet and outlet and reduce the opening force). Gate valve with transmission, according to the instructions of the product installation instructions. If the valve is always on and off, lubricate at least once a month.