Product Description:

ZSHO pneumatic piston cut-off ball valve (referred to as cut-off ball valve) is an actuator product in pneumatic unit combination instruments, generally used in combination with pneumatic components such as solenoid valves. There are two types of valve body structures: soft sealed valve seats and all metal valve seats, which are used for normal temperature (-40~180 ℃) and high temperature (-60~450 ℃) applications, respectively. Widely used in the cutting or opening of media in gas and liquid transportation pipelines in production sectors such as petroleum, chemical, pharmaceutical, metallurgical, textile, papermaking, sewage treatment, etc., to achieve the production process following a certain procedure.
The cut-off ball valve is mainly composed of a pneumatic piston actuator, a cut-off ball valve, and two parts. According to user needs, a handwheel mechanism can also be configured between the actuator and the shut-off valve, as shown in Figure 1.

Product features:

·The valve body is of integral structure and does not have a lower valve cover (only a bottom sealing gasket is provided). The valve core is equipped with upper and lower sleeve guides for stable operation· The valve seat is tightly attached to the valve core by a threaded sleeve, and the clamping force and relative position with the valve core can be adjusted to ensure a tight fit between the valve seat and the valve core, reducing leakage;
·The surface of the valve core is ground and partially or completely welded with Stellite alloy to increase surface hardness and improve service life;
·The valve seat is made of two different materials, which can adapt to the needs of different temperature ranges.
Specifications and Technical Parameters:

Note: The performance indicators of this product comply with GB/T4213-92

Accessories available:

Adjustable type, electric pneumatic valve positioner, air filter pressure reducer, handwheel mechanism
Cut off type, solenoid valve, air filter pressure reducer, handwheel mechanism

Material for main parts

Valve body and cover: HT200, ZG230-450, ZG1Cr18Ni9Ti
Valve core and seat: 1Cr18Ni9Ti, welded with Stellite alloy
Soft seal valve core: reinforced polytetrafluoroethylene
Packing: polytetrafluoroethylene, flexible graphite
Bellows: 1Cr18Ni9Ti
Gasket: Rubber asbestos board, 10, 1Cr18Ni9Ti, asbestos wrapped gasket
Membrane cover: A3
Ripple film: Nitrile rubber clip reinforced polyester fabric
Spring: 60SIMN
Valve stem and push rod: 2Cr13, 1Cr18Ni9Ti
Lining: 2Cr13

structure

Connection size and standard

Allowable pressure difference

External dimensions and weight

Ordering Instructions

Please provide the following information when setting the schedule:
Name and model of regulating valve
Nominal diameter (mm)
Nominal pressure (MPA)
Rated flow coefficient (KV)
Inherent flow characteristics
Media name
Working temperature and range
Operation mode of the whole machine
Valve body, valve internals, and packing materials
Attached attachments
Other special requirements