Ductile Iron Ggg50 Rubber Seat Double Plate Wafer Pornd Stainless Steel Check Valve

Basic Info.Model NO.Wafer Check Valve DN50-DN1000Media Water TemperatureOrdinary TemperatureMaterial Cast Iron Connection FormDual Plate Check ValveStructureDual Plate Check ValvePressureOrdinary TemperatureApplicationIndustrial Usage, Water Industrial Usage, Household UsageProduct NameCheck ValveProduct ModelDh77X-16Nominal DiameterDN50-700mmNominal PressurePn1.0MPa-1.6MPaSuitable MediumWater, Gas, Oil, EctSuitable Temperature-15ºC-150ºCValve BodyCast Iron or Ductile IronValve DiscCast Iron or Ductile Iron or Stainless SteelSeal MaterialEPDM or NBRValve Spring Stainless Steel ColorCustomized ColorCertificatesCESurface TreatmentPaintingPower Manual PackingWooden CasesSpecificationcustomizableOriginTianjin, ChinaProduct Description  Product Description Part NameMaterialValve BodyCast Iron or Ductile IronValve DiscCast iron or Ductile Iron or Stainless SteelSeal MaterialEPDM or NBRValve SpingStainless Steel1. The opening and closing principle of swing check valve is the same as that of lifting check valve, which also depends on the action of fluid pressure and the weight of the valve disc. The difference is that the opening and closing way of the valve disc is rotating motion rather than moving up and down, and the inlet direction of the fluid should be on the side that can impact the rotation of the valve disc.2. The closing part of swing check valve is a disc or disc equivalent to the diameter of the pipeline. It is suspended in the valve chamber.When the fluid medium in the pipeline is active, a thrust will occur in the fluid medium. The thrust will push the two discs of the wafer check valve, and the valve will be opened, and the medium will flow smoothly. When the medium in the pipeline stops moving, perhaps in a stopped state, the two valve disc in its own component and spring kneading force together under the closed force. When the valve disc is closed, the media in the pipeline backflow phenomenon, the backflow of the media on the valve disc reverse thrust and the gravity of the valve disc itself, the valve disc will be tightly kneaded and sealed surface fit, prevent the attack of the media backflow.The rubber ball in the ball cover for short stroke rolling to realize the valve opening and closing. When the water pump starts, the water under the action of pressure flushes the rubber ball, so that the rubber ball rolls to the right side, the position is fixed by the conical body in the back valve body, the check valve is opened; After the pump stops, due to the return water pressure in the piping system, the rubber ball is forced to roll to the left front valve body to reach the closing of the check valve.Production Process Factory Disply Goldensea is a valve manufacturer and supplier which was established in the year 1991.The main products are butterfly valves,gate valves,check valves, ball valves, globe valves,strainer and so on.We also provide customized manufacturing facilities to support industrial needs throughout the world. We have supplied flow control products for international clients for more than 10 years.We welcome you to visit in person or learn more online platforms. If you are looking for valve manufacturers and suppliers in China, Goldensea is waiting to be your reliable partner.texting Each valve shall be subject to pressure test before delivery. Unqualified valves shall not be sold.16 kg shell pressure test, pressure test pressure 24 kg; Maintain the pressure for 2 minutes; Sealing pressure test: test pressure 17.6 kg; Hold the pressure for 2 minutesPacking & Shipping Certificate & Feedback Customer Case Presentation FAQ Q1:Can you buy a samples placing orders? A1: Yes,we welcome sample order to test and check quality.Mixed samples are acceptable.  Q2:What's your leading time? A2:It depends on the order quantity and the season you place the order.-Usually we can ship within7-15 days for small quantity, and about 30 days for large quantity. Q3:What is your payment term?A3:T/T,Western Union,MoneyGram,and Paypal .This is negotiable.  Q4:What is the shipping method ? A4:It could be shippied by sea,by air or by express, You can confirm with us before order.  Q5:How do you make your business long-term and good relationship? A5:We keep good quality, competitive price and Excellent after-sales service to ensure our customers benefit .