Port by are: between disc and seat tightly closed surface dirt. Should be based on the damage degree of right, and the use of grinding or turning after grinding method to repair; Stem buckling, heeling or lever to pivot deflection, the valve core and valve disc displacement. Such a failure if I don't get out early will affect the effectiveness of safety valve and use fixed number of year of survival. ( 5) Disc frequency jump or oscillation mainly because of the spring stiffness is too big. ( 3) To the provisions of the pressure is not open to this kind of thing is not allowed is comprised of constant pressure condition. Should from the new assembly. ( 6) Open mainly constant pressure not less than stipulated pressure; Aging elasticity decreased. Should from the new assembly or change; Reduce or miss spring elastic. Should use appropriate spring stiffness; Regulate improper debugging, make the Marine valve pressure is too high. Should from the new debug spring compression quantity or weight; Disc and seat stick. 。 Q: relief valve common faults and eliminate a: striped tube of relief valve is installed, because of improper use, often leads to a lot of trouble. Open a few times, the valve can be used to improve the board took dirt away; Tightly closed surface was damaged. Should from the new debugging heavy hammer position and make the lever movement. Should be taken to change the spring, such as new debugging opening pressure treatment method. Common faults mainly has: ( 1) After discharge disc not return mainly spring buckling stem and disc to install malposition or stuck. Should from the new debugging the adjusting ring position; Drain line resistance is too large, lead to excessive emissions back pressure. ( 4) Exhaust pressure and then go up after this is mainly due to the selection of the relief valve discharge xiaoping facilities safety discharge capacity, should from the new choose appropriate safety Industrial Valves; Stem midline deviation or spring rusting, the valve can not be open to the proper height, should from the new assembling the valve stem or change the spring; The exhaust pipe section is not enough, should take appropriate safety discharge plane or the size of the surface of the exhaust pipe. Should reduce the discharge pipe resistance. Should be appropriate tightening debugging screw or change the spring. ( 2) Leakage under pressure from normal office facilities, disc and seat tightly closed surface between the degree of leakage is occurred more than allowed. Should be conducted on a regular basis for manual vent or drain relief valve; Lever of the relief valve lever stuck or heavy hammer has been moved. 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 valve, butterfly valve, gate valve, globe Industrial Valves, check valve, relief valve, safety valve, Marine valve, oil valve, hydraulic control valve and other kinds of valves.
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