A wafer check valve fits between mating pipe flanges, providing automatic reverse-flow protection in a short body. It is worth considering where a conventional flanged check valve would take up too much space along the line.
Farpro’s wafer range includes the DH77X model shown below. Its product page lists the materials and dimensions for checking against a new piping layout or an existing installation.
The compact body is only part of the choice. The closing mechanism, seal material and available disc clearance also affect how the valve fits and works. kami check valve range includes flanged and silent designs if the line calls for a different arrangement.
Wafer Check Valves and Closing Mechanisms
Injap Rama-rama Wafer Manual – D71X
Injap rama-rama wafer manual D71X digunakan secara meluas dalam pelbagai saluran paip bekalan air dan saliran, pembinaan dan sistem memadam kebakaran,
Injap Rama-rama Wafer Elektrik – D971X
D971X Injap rama-rama wafer elektrik ialah sejenis injap industri yang menggunakan penggerak elektrik untuk mengawal aliran
Injap Semak Wafer DH77X
DH77X ialah injap sehala wafer padat yang dipasang di antara bebibir paip. Its spring-assisted closing mechanism provides automatic reverse-flow protection
“Wafer” describes the installation between flanges; it does not specify a single closing mechanism. Wafer check valves may use a single disc, two plates or other arrangements, with a spring assisting closure on some designs. The spring arrangement is part of the valve design, rather than a setting to change on site without the manufacturer’s instructions.
Before fitting the valve, allow clearance for the closing element to open without touching adjacent pipework or equipment. Mating flange dimensions and installation orientation also need to suit the model.
The DH77X wafer check valve combines a cast iron body and disc, stainless steel spring and NBR seal. Those details help distinguish it from other compact non-return valves that may look similar from the outside.
Working With Limited Installation Space
Space is often the reason a wafer valve is chosen, especially during a retrofit. A sketch showing the gap, flanges and nearby fittings helps us understand the installation before recommending a model.
Send us the details you have, even if the original valve number is no longer readable. We can work from the existing arrangement and discuss the available options.
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