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. Nuestro check valve range includes flanged and silent designs if the line calls for a different arrangement.
Wafer Check Valves and Closing Mechanisms
Válvula de mariposa manual tipo oblea – D71X
La válvula de mariposa manual tipo oblea D71X se usa ampliamente en diversas tuberías de suministro y drenaje de agua., sistemas de construcción y extinción de incendios,
Válvula de mariposa eléctrica tipo oblea – D971X
Las válvulas de mariposa eléctricas tipo wafer D971X son un tipo de válvula industrial que utiliza un actuador eléctrico para controlar el flujo.
DH77X Wafer Check Valve
The DH77X is a compact wafer check valve installed between pipe flanges. 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.
El 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.
Farpro Valve es un gran fabricante mundial de válvulas dedicado a la investigación, desarrollo, fabricacion y venta de valvulas.
Nuestros estándares de productos incluyen: ES/JB, API, ANSI, AWWA, DE, ÉL, GOST, NF, etc..
Nuestras válvulas están disponibles en 12 Categorías mayores, 200 serie y 4000 tamaños, incluido válvulas de compuerta, válvulas de globo, válvulas de bola, válvulas de mariposa, revisar válvulas, válvulas de diafragma, válvulas reductoras de presión, válvulas de tapón, trampas, etc..
La producción anual alcanza 80,000 montones. Todos los productos son ampliamente utilizados en petróleo., petroquímico, químico, energia electrica, metalurgia, conservación del agua, construcción, farmacéutico, drenaje y otros campos.
Nuestros productos se venden bien en los mercados de Alemania., Inglaterra, Francia, Italia, Brasil, Polonia y más de 30 países y regiones de europa, Asia Central, Asia occidental, etc..