Check valves are used to prevent flow of fluid (gas or liquid) in one direction and allow flow in the other direction.
Sizes of port
OD of port
Maximum OD of port
ID of port
Diaphragm check valve
Material of body
Material of diaphragm
We have Five port sizes to choose : 1/8", 3/16", 1/4", 5/16" and 3/8".
Four housing materials: PA66 / PP / PVDF / ABS
Three diaphragm materials: Silicone / Viton / EPDM
Different material check valve can been used in different application
If you need ozone resistant, we recommend PVDF material check valve
If you need high temperature resistant, we recommend PVDF material and PA66 material check valve
If you need low temperature resistant, we recommend ABS material
If you need corrosion resistant, we recommend PVDF and PP material.
If you need oil, diesel fuel, gasoline resistant, we recommend PA66 material.
If you are not sure which kind check valve to choose , pls check some points and we will give you our advices:
1, What's the size of the check valve port that you need ? Or the inner diameter of the hose that the check valve connected to .
2, Where does the check valve you use in?
3,What medium can the check valve come into contact with? Such as Air, Ozone, Water, Oil ( Gasolines, Lubricant Or Edible Oil )
4, What is the using temperature about your check valve ?
5, What is the Cracking pressure of the valve you require?
Q1. What is your terms of packing? A: Generally, we pack our goods in cartons.
Q2. What is your terms of delivery? A: EXW, CPT, CIF.
Q3. What is your sample policy? A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q4. Do you test all your goods before delivery? A: Yes, we have 100% test before delivery
Q5: How do you make our business long-term and good relationship? A:1. We keep good quality and competitive price to ensure our customers benefit ; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
Located in the east of China, Shanghai .DGOzone Ltd. is one technical listed company, who professionally designs, develops, distributes ozone generators for civilian and industrial air and water treatments. DGOzone majors in ozone generator units, ozone generator machines and accessories. Ozone generator units include ceramic plate ozone generator units and ceramic tube ozone generator units. The accessories cover venturi, check valve, air dryer and so on. Our ozone generator units are certificated through CE and RoHS, honored by nice clients from home and abroad, which are widely used in houses, hotels, schools, offices, mansions, swimming pools, food factories, bottled water fill lines and fields of medical treatment and public health. Much respect is paid to the talent and much to science and research of ozone high-tech and environmental protection materials by DGOzone. Most effort is made on meeting requirements of different customers with positive service, quality products and favorable prices. OEM service offered, Design service offered, Buyer label offered. Ozone is 100% eco-friendly and chemical-free, leaving no chemical residue or harmful byproducts. For the benefit of worldwide people and the environment, now DGOzone is doing best to be well positioned as an Efficient, Excellent and Entire supplier in this wonderful sector. Now DGOzone has been one of the biggest exporter for ozone generators and accessories in China. Besides, DGOzone is also one of the biggest donator in national ozone fields to China Pavilion in Expo 2010 Shanghai.
1. OEM Manufacturing welcome: Product, Package... 2. Sample order 3. We will reply you for your inquiry in 24 hours. 4. after sending, we will track the products for you once every two days, until you get the products. When you got the goods, test them, and give me a feedback.If you have any questions about the problem, contact with us, we will offer the solve way for you.