Q: the commencement check valve installation, to bring a: 1) , do not make the check valve in the line weight, large check valve: should be independent, to make it not influenced by initiation pressure piping. 。 For office pressure is greater than 1. 0 MPa and play on ZhuGanGuan truncation utility valve, before installation should try of strength and tightness, conform to the standard rear must use. Construction, installation, main point 2) , installation position and height, the import direction must accord with the preset requirement, even who strengthen emergency. 3) And all kinds of manual valves installed on the warm pipe, handle are not down. Was sex to try, try to pressure for the nominal pressure of 1. 1 times; Try to pressure trying to continuous time should accord with GB 50243 standard requirements, with disc tightly closed surface no leakage to conform to the standard. 4) , valve installation prior to implementation of seizing appearance, metal brand should accord with the current nation standard GB 122 of 'general micro valve Marine valve 20 rules. The strength to try, try to pressure for the nominal pressure of 1. Five times the continuous time not less than 5 min, Industrial Valves shell, packing should be no leakage to conform to the standard. Notes to the order: The national standard) A, A: B: product name, model, nominal size medium and temperature, pressure range C: whether there is attachment, delivery time, and special requirements so that we can correct selection for you. Second, if the valve has been selected by design unit of our company model, please order according to the valves parameters directly with our sales center. Three, it is very important when you use the occasion or the environment is more complex, would you please provide design drawings and detailed parameters, our engineers experts will concentrate on review and analysis for you. We can provide you with professional solutions, including design, customization, complete, operation and service. We've been working on the valve leader in the field of industry, to provide you with the latest knowledge of the valve, the best service, best technical adviser. Thank you for visiting our website, if you have any questions, you can call us, we will be dedicated to provide you with quality services. The factory provides professional ball Industrial Valves, butterfly valve, gate valve, globe valve, check valve, relief valve, safety valve, Marine Industrial Valves, oil valve, hydraulic control valve and other kinds of valves.
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