AWWA standard design and manufacture, simple structure. preventStop dielectric backflow, pump and drive motor reverse, and capacitance
Discharge of the apparatus medium.
With internal rocker arm rotating structure, it is suitable for the pipeline of petroleum, chemical, pharmaceutical, electric power and other industries to prevent the backflow of the medium.Applicable media for water, oil, steam, acid media, etc.
Short Description
Standards
- Connection flange : ANSI/ASMEB16.1, ANSI/AWWA C111/A21.1, ISO 7005-2 PN10/PN16
- Test standard: BS6755, API 598, AWWA C508
- Design standard: BS5153, API 594, MSS SP-71, AWWA C508
Material
- Valve body : Carbon steel, 304, 316, 316L
- Valve cover :Carbon steel, 304, 316, 316L
- Valve Disc: Carbon steel, 304, 316, 316L
- Sealing : Carbon steel surfacing iron base alloy, body seal
Technical Parameter
- Pressure range: PN10, PN16, 150PSI, 300PSI
- Valve size: 4 “-48”
- Connection mode: flange type
- Temperature range: -40°C-500°C
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