Top Entry Ball Valve
The sealing performance of the top entry ball valve is good: the spring at the end of the metal seat ensures that the sealing surface has sufficient pre-top force, and the valve ensures good sealing performance under the action of the spring when the sealing surface is worn out in use; and when the pressure of the medium is high, the unbalanced force produced by the medium in the sphere ensures the sealing performance.
Quality Control About top entry ball valve
We are one of the leading manufacturers in china to supply quality valve solutions for oil, gas, refinery, chemistry, marine, power plant, pipeline transmit industries etc.; We provide full range of industrial valves products, include Gate valve, Globe valve, Check valve, Ball valve, Plug valve, Butterfly valve, strainer etc. of different types ,sizes and material, Available standard include API, BS,JIS, EN, DIN, GOST etc.
All our branch factories have strict Quality control system as per ISO 9001, API 600, API 6D , API Q1, CE/PED etc. so our products are designed and manufactured strictly as per client's requirements and latest manufacturing specification of international standards organization