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Water Seal Gate Valve

Product details

1. use the middle flange bolt connection, the two ends of the branch pipe for flange connection or butt welding connection.
2. The stuffing box is designed as a water-sealed structure, which is connected with 0.6 ~ 1.6mpa water-packed material with low friction and good sealing, which can isolate the system from the atmosphere and ensure good air tightness.
3. the opening and closing parts adopt double gate plate bidirectional elastic seal, easy to open and close, reliable seal, good performance.
4. the stem after conditioning and surface nitriding treatment, has good corrosion resistance, abrasion resistance and abrasion resistance.
5. Simple structure, compact and reasonable, convenient maintenance, long service life and beautiful appearance.
6. the valve must be in the full open or closed position, can not be used for regulating valve.


Product model: DSZ44H
Nominal diameter: DN50 ~ 800mm
Nominal pressure: PN0.6 ~ 1.6MPa
Main material: carbon steel, alloy steel
Applicable temperature: ≤550℃
Design criteria: API 600, ASME B16.34, DL/T 531, JB/T3595
Structure length: DL/T 531, ASME B16.10, GB/T 12221
Connection standard: DL/T 531, JB/T3595, ASME B16.25
Pressure test: API 598, GB/T 13927, JB/T 9092
Pressure-temperature classes: API 598, GB/T 13927, GB/T 26480, JB/T9092, JB/T3595



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