1. Valves should be stored in a dry and ventilated room, and stacking is strictly prohibited.
2. Both ends of the inventory valve passage must be sealed to prevent foreign objects from entering the inner chamber and damaging the sealing components. And should avoid contact with oil or other flammable materials.
3. The metal processing surface of this valve should be cleaned of dirt and coated with rust inhibitor.
4. Do not apply oil or grease on the surface of the rubber lining or rubber diaphragm to avoid rubber swelling and affecting the service life of the valve.
5. During storage or shutdown, the handwheel should be rotated counterclockwise to keep the valve in a slightly open state, avoiding the loss of elasticity of the diaphragm due to long-term compression.
During transportation or installation, the sling must not be tied to the handwheel or valve stem. It is strictly prohibited to collide with other metals or hard objects to prevent damage to the parts and lining.
Before installation, it is necessary to carefully check whether the operating conditions and medium of the pipeline match the scope of application specified in this valve to avoid unnecessary losses caused by improper selection, which may lead to accidents.
8. This valve can be installed for bi-directional flow at any position in the pipeline, except that it is not suitable for use in vacuum pipelines, but it should ensure easy operation and maintenance.
During installation, the inner chamber of the valve body should be cleaned thoroughly to prevent dirt from blocking or damaging the sealing components, and the connecting bolts of each part should be checked for even tightening.
10. During operation, it is necessary to regularly inspect the components in contact with the medium and replace vulnerable parts according to actual usage.
11. When replacing the diaphragm, be careful not to tighten or loosen it too tightly.
12. If this valve is used on intermittent operating pipelines, the parts in contact with the medium should be cleaned during the shutdown period to extend the service life.
13. When manually operating the longitudinal valve, do not use an auxiliary lever to open and close the valve, in order to avoid excessive torque and damage to the driving parts or sealing parts.
14. After maintenance, the valve must undergo a sealing test according to relevant testing regulations before application. Only after passing the test can it be installed. And keep a maintenance record for future reference.
2022/08/31
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