Home > Products > Valves and Pipes > Ball valve > Q347Y- (16-25C) Large-bore metal hard-sealed fixed ball valve, Large-bore metal hard-sealed fixed ball valve,hard-sealed fixed ball valve,ball valve

Q347Y- (16-25C) Large-bore metal hard-sealed fixed ball valve, Large-bore metal hard-sealed fixed ball valve,hard-sealed fixed ball valve,ball valve

Product Code : VF--QCC-Q263-CU

Product Name: Large-diameter Metal Hard-sealed Fixed Ball Valve

Product model: Q347Y-16/25C

Nominal diameter: DN150 - DN1200

Structural form: Fixed spherical

Nominal pressure: 1.6Mpa to 42.0Mpa

Connection method: Flange

Applicable temperature: -29 to 450℃

Drive mode: manual, worm gear, electric, pneumatic

Valve body material: A105 forged steel, WCB cast steel, stainless steel 304, 316

Manufacturing standards: National standard GB, German DIN, American API, ANSI

Applicable media: water, oil, gas, gases and certain corrosive liquids


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Product Product Code Purity Size Contact Us
Q347Y- (16-25C) Large-bore metal hard-sealed fixed ball valve, Large-bore metal hard-sealed fixed ball valve,hard-sealed fixed ball valve,ball valve VF--QCC-Q263-CU Customized Customize

The Q347Y-16/25C large-diameter metal hard-sealed fixed ball valve is a new generation of high-performance ball valve, suitable for long-distance pipelines and general industrial pipelines. Its strength, safety, and resistance to harsh environments have been specially considered in the design, and it is suitable for various corrosive and non-corrosive media. Compared with the floating ball valve, when it is working, the force generated by the fluid pressure in front of the valve on the ball is all transferred to the bearing, and the ball will not move towards the valve seat. Therefore, the valve seat deformation is small, the sealing performance is stable, and the service life is long. It is suitable for high-pressure and large-diameter applications. The advanced spring pre-valve seat assembly, with self-tightening characteristics, achieves upstream sealing. Each valve has two valve seats and can seal in each direction, so there is no flow restriction during installation and it is bidirectional. This valve has two valve body structures: two-piece and three-piece. The middle flange is connected by bolts. The seal is made of reinforced polytetrafluoroethylene embedded in the stainless steel ring. A spring is set at the rear of the steel ring to ensure that the valve seat is in close contact with the ball and maintain the seal. Both the upper and lower valve stems are equipped with PTFE bearings to reduce friction and make operation effortless. There is no adjusting plate at the bottom of the small shaft to ensure the connection position between the ball and the sealing ring. The full-bore structure is adopted to make the valve flow hole consistent with the inner diameter of the pipeline, so as to facilitate pipeline cleaning.

The Q347Y-16/25C large-diameter metal hard-sealed fixed ball valve is a new generation of high-performance ball valve, suitable for long-distance pipelines and general industrial pipelines. Its strength, safety, and resistance to harsh environments have been specially considered in the design, and it is suitable for various corrosive and non-corrosive media.

Packing of Standard Packing: 

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 470 gallon liquid totes Special package is available on request. E FORUs’  is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original cond



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