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. Naše check valve range includes flanged and silent designs if the line calls for a different arrangement.
Wafer Check Valves and Closing Mechanisms
Ručni leptirasti ventil za oblatne – D71X
D71X ručni leptir ventil s pločicama naširoko se koristi u raznim cjevovodima vodoopskrbe i odvodnje, građevinske i protupožarne sustave,
Električni leptir ventil – D971X
D971X Električni pločasti leptir ventili vrsta su industrijskog ventila koji koristi električni pokretač za kontrolu protoka
DH77X Vafer povratni ventil
DH77X je kompaktni nepovratni ventil s vaferom ugrađen između prirubnica cijevi. Njegov mehanizam za zatvaranje potpomognut oprugom osigurava automatsku zaštitu od obrnutog protoka
“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 nepovratni ventil 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 veliki je svjetski proizvođač ventila koji se bavi istraživanjem, razvoj, proizvodnja i prodaja ventila.
Naši standardi proizvoda uključuju: GB/JB, API, ANSI, AWWA, IZ, ON, GOST, NF, itd.
Naši ventili dostupni su u 12 glavne kategorije, 200 serije i 4000 veličine, uključujući zasuni zasuna, kuglasti ventili, kuglasti ventili, leptir ventili, povratni ventili, membranski ventili, ventili za smanjenje tlaka, čep ventili, zamke, itd.
Godišnja proizvodnja doseže 80,000 tona. Svi proizvodi imaju široku primjenu u nafti, petrokemijski, kemijski, električna energija, metalurgija, očuvanje vode, konstrukcija, farmaceutski, odvodnje i dr. polja.
Naši proizvodi dobro se prodaju na tržištima Njemačke, Engleska, Francuska, Italija, Brazil, Poljska i više od 30 zemljama i regijama u Europi, Srednja Azija, Zapadna Azija, itd.