The difference between soft sealed gate valves and hard sealed gate valves
date:2024-04-08 08:47
The opening and closing component of a soft sealed gate valve is the gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully open and fully closed, and cannot be adjusted or throttled. The gate has two sealing surfaces, and the two sealing surfaces of the commonly used gate valve form a wedge shape. The wedge angle varies with the valve parameters, usually 50, and is 2 ° 52 '' 'when the medium temperature is not high. Generally, gate valves are prone to water leakage and rusting. Soft sealed gate valve (elastic seat sealed gate valve), with cast iron lined rubber gate plate material, overcomes the shortcomings of general gate valves such as poor sealing, elastic fatigue, and easy rusting.
Soft sealed gate valve is an upgraded product of traditional gate valves. It uses an elastic material gate plate and utilizes the slight deformation compensation effect generated by the elastic material to achieve good sealing effect. Soft sealed gate valves have significant advantages such as lightweight opening and closing, reliable sealing, good elastic memory, and long service life. The gate plate of the hard sealing face gate valve is made of cast iron or stainless steel, with low opening and closing resistance and no flow resistance, but the sealing performance is poor. The difference between soft sealed gate valves is that the sealing surface of the gate plate is different.
