Instructions for use:
ZSHVE/ZDRVE series shut-off ball valve is a rotary shut-off ball valve, which is an actuation unit in pneumatic or electric single-element instrument combination, generally used in combination with solenoid valves and other components. There are two types of seals: soft seal and hard seal, which are used under -40°C~180°C and -60°C~450°C respectively. This series of products has the characteristics of high transmission efficiency, large thrust, good sealing performance, large rated flow coefficient, and good interchangeability of parts. This series of products are widely used in petroleum, chemical, pharmaceutical, metallurgy, textile, papermaking, sewage treatment and other production departments to cut off or open the medium of gas and liquid transportation pipelines to meet the requirements of working conditions.
The “O” type shut-off ball valve adopts cylinder piston type pneumatic actuator or DCL electric actuator, the ball surface of the “O” type cut-off ball valve adopts a special process for hardening, so that its surface is smooth and wear-resistant, the valve seat and sealing material are made of high-temperature, wear-resistant carbon fiber material, the product structure is exquisite and reasonable, this series of cut-off ball valves have pneumatic piston type “O” type cut-off ball valve and electric “O” type cut-off ball valve; The nominal pressure level of this series of products is PN (mm) 1.6, 4.0, 6.4, the nominal diameter range of the valve body is DN (mm) 15 ~ 300, and the leakage standard is class IV and VI; The valve spool angle is 90o, and a variety of specifications are available.
Part material
Common materials for main parts
Valve body: ZG230~450, ZG1Cr18Ni9Ti
Sphere: ZG1Cr18Ni9Ti
Valve seat: 1Cr18Ni9Ti
Stem: 1Cr18Ni9Ti, 3Cr13
Bushing: 2 Cr13
Sealing ring: reinforced PTFLON, 1Cr18Ni9Ti, 1Cr18Ni9Ti overlay titanium alloy
Gaskets: rubber asbestos board, 1Cr18Ni9, asbestos winding gasket
Fillers: Teflon, flexible graphite
Guide sleeve: QaI9-4, 0Cr18Ni9, composite material