Zshtrr.y pneumatic o-cut ball valves consist of pneumatic horizontal piston actuators (hereinafter referred to as pneumatic piston actuators) and o-type series ball valves. It powered by compressed air, stem drive the ball in the valve body rotate 90 degrees, realization of full open to full close action, has excellent cutting performance, widely used in petroleum, chemical industry, papermaking, metallurgy, sewage treatment, oil tank truck etc, for all kinds of liquid, gas, slurry flow etc to cut off the control and the circulation medium, especially suitable for control of high viscosity, medium with fiber and fine particles.
specifications
Main technical parameters
○The valve body
Type: full diameter spheroid
Nominal diameter（DN）： 15～600mm
Nominal pressure（PN）：1.6、6.3MPa 或ANSI150、300、400 及600、900Lb RF
Connection mode: flange connection
materials：WCB CF8 CF8M
Filling: asbestos - impregnated tetrafluoroethylene, teflon, flexible graphite
○In the valve components
Spool type: ball spool
Spool material: CF8, CF8M (polished, nitrided) or surface spray welded cemented carbide
The seat material and using temperature: soft seal (R) ptfe - 20 ~ + 180 ℃
Fill four fluorine - 20 ~ + 180 ℃
Para polystyrene - 40 ~ + 350 ℃
Hard seal (y) 2Cr13, 304, nitrification treatment or
Spray welding carbide - 40 ~ + 450 ℃
Shaft material: 2Cr13, CF8, CF8M, 17-4ph
Shaft sleeve material casting copper alloy, CF8, CF8M
○Schematic diagram of valve seal
○actuator
ZSH, ZST series cylinder lateral thrust actuator
○Actuator standard specification
Main technical performance
Main technical performance
Actuator arrangement and allowable pressure differential pressure VPS
(1) soft seal with double action cylinder actuator (air source pressure: 0.5mpa)
