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Features and installation precautions of gate valve with purge holeRelease Date: September 03, 2018
I. Features of gate valve with purge hole:
1. The gate valve with purge hole is a wedge type single gate with two-way sealing, simple structure, compact and reliable sealing.
2. The purging device can clean and scour pipelines and valves that are easy to coke and granular media, effectively improving the service life of the system.
3, Z1 imitation, Z2 imitation series with purge gate valve is also suitable for water, steam, flue gas, oil or mist, powder, granular and other media pipelines, as a lifting device, especially suitable for the petrochemical industry The oil transport and catalytic fission system plays the role of opening and closing and cleaning the flushing pipeline.
Second, the installation and maintenance of the gate valve should pay attention to the following matters:
1. The hand wheel, handle and transmission mechanism are not allowed to be used for lifting, and collision is strictly prohibited.
2. The double gate valve should be installed vertically (that is, the valve stem is in the vertical position and the handwheel is at the top).
3. The gate valve with the bypass valve should be opened before opening (to balance the pressure difference between the inlet and outlet and reduce the opening force).
4. The gate valve with transmission mechanism shall be installed in accordance with the instructions of the product instruction manual.
5. If the valve is frequently opened and closed, lubricate it at least once a month.