Product Description:
main feature
1. Its structure adopts the eccentric tightening principle to achieve the purpose of gate tightening, adjustment and closing through the transmission mechanism. The sealing pair is a metal surface ring with a hard surface contact seal, double offset
When the core structure is opened, the valve core is located in the ball chamber, with a large flow cross-section, and the valve will not be washed. When closed, the valve core will not be washed. When it is opened, the spherical surface of the valve core will move along the valve.
The seat is progressive, effectively removing scaling obstacles and achieving reliable sealing. It is particularly effective for mixed flow transportation of two-phase mixed flow where solids prone to scaling are precipitated.
2. The hemisphere of the valve is made of bimetal, and different alloys are overlayed on the base metal. The valve seat is also overlayed accordingly. After special treatment, the sealing surface is combined into an anti-corrosion, wear-resistant, high-performance sealing surface.
Various types such as strength to meet the needs of different occasions.
3. It is tightly sealed and can transport harmful gases with zero leakage.
4. There is a compensation amount left in the valve core of the sealing pair. When the valve is worn, rotate it a little when closing to ensure reliable sealing and extend the service life. Additionally, users will
The compression nut is unscrewed and the valve seat can still be used after adjustment or replacement, thus avoiding the disadvantage of scrapping the entire unit if the valve seal fails.
product specifications
Design specification: GB12237-89
Structure length: GB12221-89
Connection standard: GB/T17241.6-1998, GB/T9115
Pressure test: GB/T13927 , JB/T9092
Product Range
Main material: QT450, WCB, ZG20CrMo, ZG1Cr18Ni9Ti
Nominal diameter: DN40-DN1200
Pressure range: 0.6-4.0MPa
Applicable temperature: -29-425℃
Operation mode: manual, electric, pneumatic
Applicable media: water, steam, gas, oil, etc
