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Wafer Type Silent Check Valve
The Dongsheng Series 100 Silent Wafer Check Valve has a spring- loaded poppet that allows the valve to close before flow reversal occurs, resulting in a silent, non-slam closure. It is a truly silent check valve. For ease of installation, the valve can be installed in vertical or horizontal positions with flow up or flow down. The short lay length of the valve allows for a space-saving design. Silent Wafer Check Valves are available in sizes 2” to 10”, with either a 125 lb. or 250 lb. pressure class rating.
Advantages include:
Short Lay Length
Watertight Seating
Field Replaceable Parts
Factory Mutual Approved
Optional Resilient Seat
FEATURES:
1.WATER HAMMER ELIMINATED
2.Shortest feasible face-to-face dimensions
3.Lightweight,space-saving wafer design
4.Easily replaceable parts
5.Functions equally well in all positions
6.Simple flange-supported installation
7.Drop-tight seating
DESCRIPTION:
1. Working pressure: 1.0/1.6MPa
2. Working temperature: NBR: 0°C~+80°C ;EPDM: -10°C~+120°C
3. Flange according: ANSI 125/250
4. Face to face : ANSI 125/250
5.Testing: API598
6. Medium: Fresh water, Sea water, all kinds of oil, acid, alkaline liquid etc..
MATERIAL LIST:
| NO. | Part | Description |
| 1 | Body | Cast Iron or Ductile Iron |
| 2 | Plug | 304 or 316 Stainless Steel |
| 3 | Seat | 304 or 316 Stainless Steel |
| 4 | Spring | 304 or 316 Stainless Steel |
| 5 | Bushing | 304 or 316 Stainless Steel |
| 6 | Set screw | Stainless Steel |
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