Henan Liwei Industry Co., Ltd.
Large diameter rubber joint, molding to find Henan Liwei
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Custom Rubber Raw Materials Rubber Flanged Duckbill Check Valve With Long Service Life
Duckbill check valve is consist of elastic neoprene rubber and man-made fiber,made by special processing,the shape is similar to the duckbill, so called duckbill valve. Under the condition of no pressure inside, the duck mouth is closed under the action of elastic force,with the increase of internal pressure, the exit of duckbill gradually increases,and the liquid can be discharged at high flow rate.
| Type | Nominal diameter of pipe | L for length | H for height | C for external diameter of flange |
| XF50-150-F | 50 | 150 | 100 | 150 |
| XF80-220-F | 80 | 220 | 140 | 200 |
| XF100-250-F | 100 | 250 | 200 | 225 |
| XF150-340-F | 150 | 340 | 265 | 275 |
| XF200-420-F | 200 | 420 | 325 | 338 |
| XF250-520-F | 250 | 520 | 425 | 400 |
| XF300-620-F | 300 | 620 | 525 | 485 |
| XF350-700-F | 350 | 700 | 625 | 525 |
| XF400-800-F | 400 | 800 | 725 | 588 |
| XF450-900-F | 450 | 900 | 825 | 625 |
| XF500-980-F | 500 | 980 | 925 | 688 |
| XF600-1120-F | 600 | 1120 | 1025 | 800 |
| XF700-1180-F | 700 | 1180 | 1125 | 969 |
| XF800-1350-F | 800 | 1350 | 1400 | 1080 |
| XF900-1500-F | 900 | 1500 | 1525 | 1150 |
| XF1000-1600-F | 1000 | 1600 | 1725 | 1325 |
| XF1200-1840-F | 1200 | 1840 | 1950 | 1485 |
a) Automatically open and close according to the water pressure difference, safe and reliable, no noise, no personnel operation, no maintenance.
b) The forward opening water resistance is small, the starting pressure is small, and the flow rate is naturally adjusted according to the water pressure:
c) Reverse check seal is good, no leakage, prevent backflow, the greater the back pressure, the better the effect;
d) Anti-corrosion, aging resistance, no deformation, strong adaptability, long service life;
e) Wide range of sizes, nominal diameters DN50 to DN3000
Packing
Inner: Plastic film, then put into carton case.
Outer: Safe firmed export plywood case, marking on carton case and wooden case can be customized, or packing as per your requests.
Shipping:
1.We could deliver the goods by international express, such as DHL, UPS, TNT, EMS, others.
2.You could also choose the transportation according to your schedule and budget.3.Or you could use your own cargo agent.
FAQ:
Q: Do you provide samples? Is it free or charged?
A: Yes, we can offer sample free but shipping charges covered by customer.
Q:Are you trading company or manufacturer?
A: We are professional manufacturer.
Q:When the products will be shipped ?
A:Within 7~25 days after receiving the prepayment.
Q: Do you have products catalog?
A: Yes, we have. Please tell me your email or instant messager, we will send our catalog.
Q: Can you provide drawings and technical data?
A: Yes, our professional technical department will design and provide drawings and techical data.