Stainless Steel High Pressure Check Valve with NPT Female Ends
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Material of valve: AISI 304, AISI 316L
Standard of valve: DIN/SMS/3A/ISO/IDF
Flux domination of pipeline:1/4"-4", applied to the stainless steel pipeline system
Medium: Beer, Dairy, Beverage, Pharmacy.
Operating Principle:The valve opens when the pressure of the fluid in the exceeds the pressure exerted by the pump spring. When the two pressures are equalised, the valve closes.A stronger counter-pressure allows the valve to close.
Applications: A check valve is a valve that prevents the fluid from flowing back and ensures that it flows in only one direction. It can be used to prevent the loss of prime of the pump and to avoid pipe-hammering. It is used in the food-processing, beverages, wine-making, oil-making, cosmetics, pharmaceutical and chemical industries.
We can supply this check valve with weld end, clamp end, flanged end and thread end connection. Requiring more detail information pls don't hesitate to contact us. We can also produce according to your drawing if the Specification is out of our standard.
FAQ:
1.  Are you a trader or manufactor? Â
     We are a manufactor
2.   Can your products reach to FDA , CE and 3A requirements?Â
     Yes, all of our material can reach to the requirements of FDA, CE and 3A
3.  How can you ensure the quality?
     We always take the Quality as the most important point during our business. So we have a formal regulation to control the quality, the procedure will be: A. The raw materials will be 100% inspected. we will ruturn to the supplier for any of poor raw materials. B. during production, different materials will be charged by different person to avoid any mixing. C. After production, we always inspect 50% for each lot. If there is any problem in the 50%, then we will go back to inspect 100%. of course, if our customer have the special requirement to inspect 100%. We can do that as well.
4.   Can you supply the 3.1 Quality Certificate (including the chemical composition analysis resuls)?
      Yes, we inspect chemical composition for every lot of our material ,  and supply the record to issue the 3.1 Quality Certificate. If necessary, we can send the 3.1 Quality Certificate together with the shipping documents.
5. How do you solve the quality Complaint, if any?
We are prety proud that we never let any customer leave us bcz the quality.  We'll do our best to supply the correct products, so we receive little quality complaint during our 15 years business.  If it is happend, we'll be responsible for it from the begining to the end.
6.  How long would be the delivery time?Â
Regarding the common products, 8-10 days will be enough; for bulk order, 15-25days is required.  It depends the order quantity
7.   Any further questions, pls feel free to let me know
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Connecting Ends
Female Threaded
Standard
DIN, SMS, 3A, ISO, IDF, RJT, BS
Available Sizes
DN25-DN100, 1"-4"
Metal Material
Parts in contact with fluid
304, 316L (DIN 1.4301, 1.4304) Forging
Other parts
304
Seal Material
Options
Silicone, EPDM, FPM, NBR
Pressure
Max. working pressure
10 barÂ
Opening pressure
0.08 bar
Surface Finish
Internal surface
Ra < 0.8 μm
External surface
Ra < 1.6 μm