Stainless steel flange gate valve

Gate valve product series Stainless steel flange gate valve Shoulong gate valve Introduction to stainless steel flange gate valve
Gate valve has the characteristics of small fluid resistance and wide applicable pressure and temperature range. It is the most commonly used cut-off valve for cutting off or connecting pipelines. medium. When fully open, the entire flow is passed through. At this time, the pressure loss of the medium running is minimal. Gate valves are usually suitable for conditions that do not require frequent opening and closing and keep the gate fully open or fully closed. Not suitable for use as a regulator or throttling device. For high-speed flowing media, when the gate is partially opened, it can cause vibration of the gate, and the vibration may damage the sealing surface of the gate and valve seat, and throttling will cause the gate to be eroded by the medium.
Domestic low-pressure gate valves generally use cast iron materials. Cast iron gate valves often suffer from serious problems such as freezing cracks in the valve body and falling off of the gate plates. The carbon steel valve stems of cast iron gate valves are prone to rust, and the packing gaskets are of poor quality and have serious internal and external leakage. The low-pressure carbon steel gate valve produced by Valve Network replaces the traditional iron gate valve and effectively solves the problems of cast iron gate valve shells that are easy to freeze and crack, gate plates to fall off, valve stems to rust, and sealing performance is unreliable.
Features of stainless steel flange gate valve
Small fluid resistance because the internal medium channel of the gate valve body is straight-through and the medium does not change its flow direction when flowing through the gate valve, so the fluid resistance is small.
The opening and closing torque is small because the gate plate movement direction is perpendicular to the direction of medium flow when the gate valve opens and closes. Compared with the stop valve, the opening and closing of the gate valve requires less effort.
The flow direction of the medium is not restricted. The medium can flow in any direction from both sides of the gate valve to achieve the purpose of use. It is more suitable for pipelines where the flow direction of the medium may change.
The structural length is shorter because the gate plate of the gate valve is placed vertically in the valve body, while the disc of the stop valve is placed horizontally in the valve body, so the structural length is shorter than that of the stop valve.
The sealing performance is good and the sealing surface is less eroded when fully open.
The sealing surface is easily damaged. When opening and closing, the gate plate and the valve seat are in contact with each other, and there is relative friction between the two seals, which is easily damaged and affects the performance and service life of the seal.
The opening and idle time is long and the height is large. Because the gate valve must be fully open or fully closed when opening and closing, the gate plate has a large stroke and requires a certain space and high overall dimensions for opening.
There are many parts with complex structure, which makes manufacturing and maintenance more difficult and the cost is higher than that of stop valves.
Stainless steel flange gate valve parameters
Product model
Product caliber
Product pressure
Product material stainless steel
Used medium water, oil, steam, gas, etc.