Method for testing the performance of elastic seat soft seal gate valves

Elastic soft seal gate valves have been widely used in various fields such as petroleum, chemical, liquefied gas, water supply and drainage, food, pharmaceuticals, power generation, boiler steam systems, minerals, urban construction, municipal engineering, as well as daily life of residents. As a type of fastener, the sealing performance of elastic soft seal gate valve can only be put into the market after being tested layer by layer. This is the commitment of elastic soft seal gate valve manufacturers to consumers Next, let me introduce the performance testing of elastic soft seal gate valves

一、 Factory inspection of elastic soft seal gate valve
1. When the valve is in the open position, the valve body should withstand an internal pressure test of twice the valve working pressure value;
2. Under the closed condition of the valve, both sides can withstand 1.1 times the valve working pressure without leakage; But for metal sealed butterfly valves, the leakage value should not exceed the relevant requirements
二、 Authoritative testing of elastic soft seal gate valves
1. The opening and closing torque of the valve under working pressure conditions;
2. Under working pressure conditions, the continuous opening and closing times that can ensure the valve is tightly closed:
3. Detection of flow resistance coefficient of valves under pipeline water delivery conditions

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