The Z14W flange gate valve is a valve that cuts off or flows through the gate lifting and lowering of the gate. It is suitable for the opening and closing control of media in the pipeline system. It adopts flange connection, has a compact structure and a reliable seal, and is especially suitable for frequent operation or high pressure differential working conditions. The internal passage of the valve body is straight through, and the flow resistance is extremely small. When fully opened, the gate completely leaves the medium channel to avoid interference with the flow of the medium.
Model analysis
Z: Represents the gate valve (Gate Valve).
1: Bright rod wedge-type rigid single gate structure (bright rod design, visible lifting and lowering of the valve stem).
4: Flange connection method.
W: The sealing surface of the valve seat is made of stainless steel (such as stainless steel or cemented carbide surfacing of the valve plate and the valve seat).
Core features
Low flow resistance design
When fully opened, the gate plate is fully raised to the top of the valve cavity, the medium flow channel is straight through, and the pressure drop is extremely small. It is suitable for large flow and low resistance loss systems.
Bidirectional sealing performance
The wedge-shaped shutter plate is closely fitted with the valve seat sealing surface, and can achieve reliable sealing in both the forward and reverse directions, and can withstand high pressure differences (such as PN16~PN40).
Wear and corrosion resistance
The valve seat and gate sealing surface are surfacing stainless steel or cemented carbide, resistant to erosion and high temperature (-29℃~425℃), suitable for water, steam, oil and weakly corrosive media.
Compact and durable
The valve body material can be made of cast steel (WCB), stainless steel (304/316), etc., to meet different working conditions.
The open rod structure is designed to facilitate the observation of the valve opening status, and the valve stem thread does not come into contact with the medium, reducing wear.
Easy to operate
Hand-wheel drive, with low opening and closing torque and supports frequent operation; it can also be adapted to electric or pneumatic actuators to achieve automated control.
Technical parameters
Petrochemical: Opening and closing control of crude oil and refined oil pipelines.
Electric power industry: boiler steam system, condensate pipe.
Water supply and drainage system: municipal water supply and sewage treatment plants intercept flow.
Industrial fluids: conveying compressed air, inert gas and non-corrosive liquids.
Selection suggestions
Select the valve body material (such as corrosive medium, stainless steel) according to the characteristics of the medium (corrosiveness, particulate content).
It is recommended to use cemented carbide sealing surface for high-pressure or frequent operating conditions to extend service life.
During installation, it is necessary to ensure that the pipe flange matches the valve flange standard to avoid leakage risk.
If remote control is required, the electric or pneumatic actuator can be customized (the control signal type must be indicated, such as 4-20mA, switching quantity, etc.).
