DN50-500 Ductile Iron Silent Check Valve

The silent check valve is composed of valve body, valve seat, guide body, disc, bearing bush and spring and other parts. The internal flow channel adopts streamlined design, with small pressure loss, short opening and closing stroke of disc, which can be quickly closed when stopping the pump to prevent huge water hammer, thus forming the silent effect.The valve is mainly used for water supply, drainage, fire protection, hvac system, can be installed in the pump outlet, to prevent medium backflow and water hammer damage to the pump.

 

Performance Parameters:

` Nominal diameter: DN50mm~DN500mm;

` Nominal pressure: pn1.0mpa, pn1.5mpa, pn2.5mpa;

` Parts and materials: gray cast iron, stainless steel, cast steel, ductile iron, etc.

Overall dimensions:

DN	L
50mm	120mm
65mm	150mm
80mm	180mm
100mm	240mm
125mm	300mm
150mm	350mm
200mm	450mm
250mm	500mm
300mm	550mm
350mm	575mm
400mm	600mm
450mm	650mm
500mm	700mm

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.