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Rising Stem Parallel Double Gate Valve
Product overview
Rising stem parallel double gate valve is suitable for closed-circuit equipment on the pipeline with water and sewage. It is not allowed to be used for regulating flow and emptying. It is widely used in petroleum, chemical, pharmaceutical, electric power and other industries. It is used for opening and closing on the pipeline of medium such as steam, water and oil with nominal pressure ≤ 1.0MPa.
Product Features
1. When the system works normally, the gate opens and closes at a constant speed of 1.0 m / min, while the closing in case of power failure can be divided into two stages: fast closing and slow closing. 100-20% opening is fast closing, time 10 (s). 20-0% opening is slow closing, and the time is 40 (s).
2. It is used as a stop and check valve at the water pump outlet, and the valve also has a valve rod locking device. Ensure safe operation.
3. The new electric device can be operated locally or remotely, and can meet the requirements of computer program control. The control is accurate, safe and reliable.
Execution Standard
Design spec：GB/T 12234
Face to Face：GB/T 12221
Flange end：JB/T 79、HG/T 20592、GB/T 9113
Test & check：GB/T 13927、GB/T 26480
Pressure-temp：GB/T 12224
Performance Parameter
Nominal diameter：DN50~400mm
Nominal Pressure：PN1.0MPa
Applicable media：Water, steam and oil
Applicable temperature：≤200℃
Main materials：Cast iron
