Brief interrogation:
 
Middle part of pressure seal globe valve using pressure self-tightening structure, make sure the valve has good sealing performance under high-pressure and high-temperature conditions, usually, the sealing ring has two kinds of material, one is low carbon steel, the other is flexible graphite + SS 316, besides, the sealing surface is welding with hard alloy, after the welding is finished, the thickness of metal layer should be 3mm therefore, it has advantages of wear-resistant, temperature-resistant and anti-corrosion, greatly prolong the service life
Both ends adopt welding structure, the dimensions of welding groove can be customized on clients' requirements
Medium can be high-temperature and high-pressure water, steam, oil products and super-heated steam
It is widely used for a thermal power plant, petrochemical industry, metallurgy and other industrial sectors

Main features

1. Central connection adapts pressure self-tightening structure

2. Disc and seat are welding with hard alloy

3. High-temperature creep-resistance design

4. Material of stem is precipitation hardening stainless steel by nitriding

5. Operating device can be manual, gear, bevel gear and electric actuator