Year1
- 产地：
- 上海
- 包装：
- 木箱，纸箱
- 附件：
- 说明书
The spring slightly lifted safety valve has the characteristics of simple structure, good sealing performance, accurate opening pressure, large discharge capacity, small return pressure difference, and easy adjustment.
. Nozzle type valve seat. The valve seat is a Valval nozzle type valve seat. When steam flows through the outlet of the valve seat, it reaches the speed of sound and has a large emission coefficient. The sealing surface of the valve seat is overlayed with cobalt-chromium-tungsten carbide, which is wear-resistant. Anti-erosion, long life.
. Thermoelastic valve disc The valve disc is designed as a thermoelastic structure, using its slight deformation under medium pressure to improve the sealing ability and overcome the forward leakage phenomenon of the safety valve when it is close to the set pressure under medium pressure. The valve disc sealing surface adopts advanced laser quenching technology to improve hardness, wear resistance and impact resistance.
Adjusting nut By adjusting the adjusting nut, the spring compression amount is adjusted so that the valve can obtain accurate set pressure easily and quickly.
The back pressure adjustment sleeve is an auxiliary mechanism for adjusting the back pressure of the valve disc. By adjusting the back pressure adjustment sleeve, the appropriate return pressure difference can be obtained. When adjusted upward, the valve back pressure is reduced. When adjusted downward, the valve back pressure increases.
[Safety Valve Installation Instructions]
The safety valve must be installed vertically, and preferably directly on the joint of the container or pipe. The inner diameter of the joint should be no less than the inlet diameter of the safety valve.
. The outlet of the safety valve must be equipped with an appropriate expansion joint to prevent the thermal expansion of the discharge pipe from bringing undue thermal stress to the safety valve. The inner diameter of the discharge pipe should be larger than the valve outlet diameter, and the length should be as short as possible to avoid turns. The weight of the discharge pipe and expansion joint should not act on the safety valve and should be fixed to the building. The distance between the center line of the discharge pipe and the center line of the valve body should be as short as possible. A separate discharge pipe should be installed for each safety valve.
The outlet of the muffler must have sufficient area to prevent back pressure from affecting the discharge capacity of the valve.
Since its establishment, Shanghai Huanyao Valve Co., Ltd. has mainly sold various flow meters, liquid level meters, flow valves, safety valves, solenoid valves, regulating valves, gate valves, ball valves, and needle valves that meet the standards of /, etc. , stop valves, check valves, butterfly valves, flame arresters, exhaust valves, filters, traps and other marine accessories sets, meter valves. According to various user requirements, according to national standards, American standards, Japanese standards, German standards, etc. Customized to domestic and foreign standards. Its products all meet the testing standards of relevant municipal, provincial and national departments.
Huanyao Valve adheres to the tenet of sourcing quality and creating value with integrity. Its products are now sold well all over the country and have gradually developed overseas markets. And win the trust of customers with excellent product performance, reasonable price positioning and high-quality customer service.
Shanghai Huanyao Valve Co., Ltd. adheres to the business philosophy of honesty, quality first and reasonable price, and adheres to the principle of customer first to provide quality services to our customers. We sincerely welcome friends from all walks of life to negotiate business
Shanghai Huanyao Valve Co., Ltd. Contact number Fax email@.Business mobile phone contact Ye Feng
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