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Metal to metal seat ball valve

Product Description:

Seat of metal to metal ball valves have special protection and tight shut-off design to be applied to some poor conditions, such as high- temperate, high pressure and abrasive mediums, to fully solve the problem of inner leakage and outer leakage, and ensure reliable sealing with zero leakage.
Seats of the metal to metal sealing ball valves are featured as special structure design protection and tight shut-off, can completely meet the high-temperature, high-pressure, high density of solid particles and other poor working conditions, thoroughly solving the interior and exterior leakage problems as well as guaranteeing total tightness with no leakage at all. 
 

Technical Specifications

Design standard: API 6D、BS 5351、GB/T 19672
Face to face standard: ASME B16.10、GB/T 12221
Flange ends: ASME B16.5、GB/T 9113
Fire safe design:API 6FA 、API 607
Pressure test:API 6D、API 598、GB/T 13927

Product Specifications

Body material: carbon steel, stainless steel, alloy steel, dual-phase steel
Nominal diameter:2"~32"
Pressure range:Class150~2500
Working temperature:-196℃~+560℃
Operation : wrench, worm gear, electric, pneumatic actuator, gas over oil actuator, electro-hydraulic actuator , etc.

Design Features
Application

Advanced rocket-spraying process ensures that sealing is realiable under all temperatures — pressures. With hydrogen used as fuel, this process has been applied to the sealing faces of the ball and the valve seat ;
Hardness of coatin surface: up to HRC68~ 72,
Bonding strength of coating: ≥10000Psi,
Thickness of coating: 0.3 - 0.5 mm;
The precise “one-to-one” grinding process ensures the precise “one-to-one” grinding between the ball and the valve seat;
_”One to one” grinding process of matched ball valve seats ensures reliable sealing and perfect matching.

 

Coal liquefaction engineering, electricity, petroleum, chemical industry, papermaking, metallurgy, aerospace and other industrial departments, especially applicable for normal operation under semi-fluid, coalite slurry, high-density polyethylene, high-pressure ethylene polymers and other special working conditions. 
 

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