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  • DS Z41H-25C 水封闸阀(175).jpg

DS/Z41H type water seal gate valve

Category:


The water-sealed gate valve is suitable for use as an opening and closing device on pipelines with a nominal pressure of 100MPa, an operating temperature of 425℃, and a working medium of water, steam, oil and non-corrosive gases, especially for steam engine vacuum condensing systems in thermal power plants.

Product Introduction


◆ Product use

The water-sealed gate valve is suitable for use as an opening and closing device on pipelines with a nominal pressure of 100MPa, an operating temperature of 425℃, and a working medium of water, steam, oil and non-corrosive gases, especially for steam engine vacuum condensing systems in thermal power plants.

◆ Product features

1. The S/Z type series adopts double-gate two-way elastic sealing, flexible opening and closing, rapid, and reliable sealing.

2. The product has a simple structure, compact and reasonable, easy maintenance and long service life.

3. For use as an opening and closing device on the pipeline, it must be in a fully open or fully closed state and must not be used to adjust the flow rate.

4. There are two types of valve connection methods: flange and welding, and the driving methods are manual and electric.

◆ Design and manufacturing standards

Design and manufacturing: GB12234

Flange size: GB9113 JB7490

Pressure temperature: JB/T74 GB9131

Structure length: GB/T12221

Butt welding connection size: GB/T12224

Inspection and testing: JB/T9092 GB13927

◆ Main performance specifications


Nominal pressure (MPa)
Shell strength test

1.0

1.6

2.5

4.0

6.4

10.0

Sealing test

1.5

2.4

3.8

6.0

9.6

15.0

Upper seal test

1.1

1.8

2.8

4.4

7.0

11.0

Air sealing test

1.1

1.8

2.8

4.4

7.0

11.0

Scope of application
Product type Applicable temperature (℃) Applicable media
Carbon steel type

≤425

Water, steam, oil, non-corrosive gas
Alloy type

≤540

 

Statement: All text, data, and pictures in this article are only applicable for reference. For details such as valve performance parameters, structure size parameters, and price, please contact us at 010-89283399.