Ductile Iron Flanged Rubber Flap Check Valve

Rubber flap check valve is mainly used for water supply and drainage system, petroleum, chemical and other industrial sectors of the pipeline pump outlet, to prevent medium countercurrent.Because the sealing ring of this product adopts tilting design, the closing time is short and the water hammer pressure can be reduced.The valve disc is made of nitrile rubber and steel plate by high temperature compaction. It has the advantages of erosion resistance, good sealing performance, simple product structure and convenient maintenance, repair and transportation.


 

Performance Parameters:

` Nominal diameter: DN40, DN50, DN65, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, etc

` Nominal pressure: 1.0mpa, 1.6mpa, 2.5mpa

` Sealing test pressure: 1.1MPa, 1.76MPa, 2.75MPa

` Shell test pressure: 1.5mpa, 2.4mpa, 3.75mpa

` The operating temperature is less than 80 degrees Celsius

` Applicable medium: water and oil

` Parts materials: valve body, valve cover mainly gray iron, carbon steel;Disc rubber assembly;Stainless steel spring

Overall dimensions:

DN	L	H
40mm	165mm	180mm
50mm	200mm	190mm
65mm	215mm	210mm
80mm	240mm	230mm
100mm	290mm	250mm
125mm	330mm	280mm
150mm	355mm	315mm
200mm	500mm	370mm
250mm	620mm	430mm
300mm	700mm	475mm
350mm	785mm	550mm
400mm	915mm	600mm

Note: the connecting dimensions of cast iron flanges are in accordance with GB/ t4216-84;Dimension of cast steel flange connection according to JB/ t79.1-1994 standard.

Advantages:

1. Focusing on exporting, more than 80% products are sold worldwide.

2. Provide Full Sets of Solutions for your various industrial needs.

3. Strict & Traceable Quality Control System

4. Simplified & Effective Managing System

5. Competitive Price & On-time Delivery, with Integrated Services

 

Foundry (Castings and forgings)

 

Quality Control:

Packing and Shipment:


 

Application:
Valves serve a variety of purposes in the industrial, engineering, manufacturing and scientific communities. Selecting the right valve can determine the success or failure of the system or process.
The main purpose of a valve is to control media flow through a system. The valve may be used to start, stop, or throttle the flow to ensure safe and efficient operation of the process. Valves play a large role in most industries.   With high quality and excellent service, AFC TECH valves are widely used Oil & gas industry, refinery & petrochemical industry, off shore, power generation, mining industry, pulp and paper, water treatment etc.

Aftersales Services:

1. For each batch of goods we made, we'll furnish MTC to show the goods are 100% inspected & tested, and qualified to use.

2. Full sets of parts and accessories in the AFC TECH of the technical drawing can be supplied, in case of any possible repair or change.

3. Even our goods are made under strict quality control system, but still can not 100% avoid unexpected conditions or quality problems forever, that's why we furnish a warranty of 18 months from shipment date, during this period, we'll take responsibility for the repair, change or return for free due to quality problems.

FAQ:

1.  Q: Are you a manufacturer or a trading company?
     A: We are a production and marketing company, industry and trade integration. Our factories are responsible for manufacturing, we are dealing with all exporting business.  

2.  Q: Do you have any international certificates?
     A: Yes, our factories have CE and ISO etc. certificates.

3.Q: Do you have any export experience?

   A: Yes, we have been exported a lot worldwide. More than 80% of our products are
       for exporting.

 4.Q: Do you have any quality certificates?

   A: Yes, EN 10204 3.1 Material Certificate will be supplied together with delivery.        Certificate of Origin shall be supplied upon client's request

 5. Q: Do you have any Non-destructive Test?

    A: Yes, we have upon the customer's requests.

 6. Q: Can you manufacture valves with our brand?

    A: Yes, we can manufacture with our own brand or OEM.

 7. Q: Do you have any guarantee?

    A: Yes, we warrant our products against defects from faulty manufacturing for 12   months from the initial date of installation, or within 18 months after shipment, subject to whichever to be earlier.