Description
DKV DH77X Cast Iron Wafer Type Check Valve
The DKV DH77X Cast Iron Wafer Type Check Valve is designed for compact, space-saving installation while providing reliable backflow prevention in water supply, drainage, and HVAC systems. Its wafer-type structure allows easy mounting between flanges, reducing installation time and cost.
Constructed from high-strength cast iron with an EPDM or NBR seat, this valve ensures excellent sealing performance, corrosion resistance, and long service life. The spring-assisted disc design enables quick closure to minimize water hammer, ensuring stable and quiet operation.
Key Features:
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Wafer-type compact design for easy flange installation
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Cast iron body with corrosion-resistant rubber seat
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Spring-loaded disc prevents water hammer and backflow
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Suitable for horizontal or vertical installation
Products Design Features
| Design Standard | JB/T 8937 |
| Face To Face | GB/T 12221 |
| Flanged Slze | GB/T 17241.6 |
| Test &Inspection | GB/T 13927 |
Performance Specifications
| Nominal pressure | 1.6~6.4MPa | |
| Test pressure (Mpa) |
Shell test | 1.5×PN |
| Seling test | 1.1×PN | |
| Working temperature | -46℃-+570℃ | |
| Working medium | Water,oil,natural gas,corosive medium,etc | |
Outline and Connecting Measurememt
| Nominal diameter（DN） | L(mm) | D(mm) | H(mm) |
| 50 | 43 | 125 | 56 |
| 65 | 46 | 145 | 73 |
| 80 | 64 | 160 | 88 |
| 100 | 64 | 180 | 108 |
| 125 | 70 | 210 | 132 |
| 150 | 76 | 240 | 160 |
| 200 | 89 | 295 | 210 |
| 250 | 114 | 355 | 266 |
| 300 | 114 | 410 | 310 |
