Henan Liwei Industry Co., Ltd.
| Packaging Details | Inner plastic film,outer wooden case, if multiple compensators are packed in one case, we will use steel frame to fix it. |
| Delivery Time | After payment 15-30 working days |
| Payment Terms | T/T, Western Union, L/C, D/A, MoneyGram |
| Supply Ability | 100000 Pieces per Month |
| Product Name | Duckbill Check Valve |
| Anti-corrosion | Yes |
| Product Category | Rubber Customized Products |
| Flange Material | Carbon Steel Galvanized,Stainless Steel Etc. |
| Forward opening water resistance is small | Yes |
| Noise Reduction | Yes |
| Automatically open and close | Yes |
| Long service life | Yes |
| Brand Name | liwei |
| Model Number | DN50-DN3000 |
| Place of Origin | Henan, China |
| Certification | ISO9001, TUV, WRAS, CO, MTC, PL, IV etc |
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Product Specification
| Packaging Details | Inner plastic film,outer wooden case, if multiple compensators are packed in one case, we will use steel frame to fix it. | Delivery Time | After payment 15-30 working days |
| Payment Terms | T/T, Western Union, L/C, D/A, MoneyGram | Supply Ability | 100000 Pieces per Month |
| Product Name | Duckbill Check Valve | Anti-corrosion | Yes |
| Product Category | Rubber Customized Products | Flange Material | Carbon Steel Galvanized,Stainless Steel Etc. |
| Forward opening water resistance is small | Yes | Noise Reduction | Yes |
| Automatically open and close | Yes | Long service life | Yes |
| Brand Name | liwei | Model Number | DN50-DN3000 |
| Place of Origin | Henan, China | Certification | ISO9001, TUV, WRAS, CO, MTC, PL, IV etc |
| High Light | Noise Reduction Duckbill Check Valve ，Personalized Duckbill Check Valve ，Highly Durable Duckbill Check Valve | ||
Rubber duckbill valve is a new type of water supply and drainage valve product with a special structure, a "duckbill shaped" appearance, and a "forward discharge, reverse check" function. Made of elastic chloroprene rubber and artificial fibers through special processing, the valve body is made of full rubber structure, and some products may also contain reinforced structures such as nylon curtain layer inside. Its connection methods are divided into sleeve type, embedded type, built-in type, flange type, installation plate type, mortar or cement pipeline type according to the installation method. Common types include clamp type and flange type connections.
Good check performance: In the absence of internal pressure, the duckbill outlet closes under its own elastic action; When water flows through and the pressure gradually increases, the duckbill outlet gradually increases to maintain the ability of the liquid to be discharged at high flow rates; When the water flow stops, the valve automatically closes to prevent liquid or gas from flowing back.
Low opening pressure: Generally, it can be opened with a water head greater than 0.01 meters (equivalent to 0.001MPa) and can be opened statically.
Small head loss: Under normal working conditions, head loss can be reduced to a very small extent, but the built-in rubber duckbill valve may experience an increase in head loss due to a smaller inner diameter than the original pipeline.
Widely applicable to various media such as weak acidity, alkalinity, and wastewater.
| Type | Nominal diameter of pipe | L for length | H for height | C for external diam eter of flange |
| XF50-158-T | 50 | 158 | 100 | 25 |
| XF80-232-T | 80 | 232 | 140 | 40 |
| XF100-270-T | 100 | 270 | 200 | 40 |
| XF150-360-T | 150 | 360 | 265 | 50 |
| XF200-450-T | 200 | 450 | 325 | 50 |
| XF250-560-T | 250 | 560 | 425 | 75 |
| XF300-650-T | 300 | 650 | 525 | 115 |
| XF350-750-T | 350 | 750 | 625 | 115 |
| XF400-850-T | 400 | 850 | 725 | 135 |
| XF450-950-T | 450 | 950 | 825 | 150 |
| XF500-1060-T | 500 | 1060 | 925 | 200 |
| XF600-1200-T | 600 | 1200 | 1025 | 200 |
| XF700-1260-T | 700 | 1260 | 1125 | 200 |
| XF800-1450-T | 800 | 1450 | 1400 | 250 |
| XF900-1620-T | 900 | 1620 | 1525 | 250 |
| XF1000-1720-T | 1000 | 1720 | 1725 | 250 |
| XF1200-2010-T | 1200 | 2010 | 1950 | 300 |
| XF1400-2280-T | 1400 | 2280 | 2320 | 320 |
| XF1600-2600-T | 1600 | 2600 | 2650 | 350 |
| XF1800-2920-T | 1800 | 2920 | 2960 | 400 |
| XF2000-3150-T | 2000 | 3150 | 3300 | 450 |
| XF2200-3450-T | 2200 | 3450 | 3580 | 500 |
| XF2400-3760-T | 2400 | 3760 | 3925 | 550 |
| XF2600-3900-T | 2600 | 3900 | 4250 | 600 |
| XF2800-4200-7 | 2800 | 4200 | 4580 | 650 |
| XF3000-4500-T | 3000 | 4500 | 4990 | 700 |
Prevent backflow
Environmentally friendly and green
Strong adaptability
Strong anti blocking ability
Has buffering and noise reduction performance
Strong customizability
Product Packaging:
Each rubber customized product will be packed and shipped with care to ensure that it arrives in pristine condition. The products will be wrapped in protective material and placed securely in a sturdy box to prevent any damage during transit.
Shipping:
We offer worldwide shipping for all our rubber customized products. The shipping cost will be calculated based on the weight and destination of the order. We strive to deliver your products as quickly as possible and provide a tracking number to monitor the progress of your shipment.
Here are some frequently asked questions about our Rubber Customized Products:
Q: What is the brand name of these products?
A: The brand name is liwei.
Q: What is the minimum order quantity for these products?
A: The minimum order quantity is 1 set.
Q: What is the price of these products?
A: The price is negotiable.
Q: What is the packaging for these products?
A: The products are packaged with inner plastic film and outer wooden case. If multiple compensators are packed in one case, we will use steel frame to fix it.
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: Can you make the product as per client's requirement?
A: Yes, We can customize according to customer requirements, and we have a professional technical team to draw drawings.
Company Details
Business Type:
Manufacturer
Year Established:
1988
Total Annual:
13834800-27669600
Employee Number:
200~300
Ecer Certification：
Verified Supplier
Henan Liwei Industry Co., Ltd. was founded in 1988, covering an area of 42000 square meters. It is a manufacturing enterprise specializing in the research and development, production, and sales of anti-corrosion pipeline lining, flexible rubber joints, metal joints, rubber p... Henan Liwei Industry Co., Ltd. was founded in 1988, covering an area of 42000 square meters. It is a manufacturing enterprise specializing in the research and development, production, and sales of anti-corrosion pipeline lining, flexible rubber joints, metal joints, rubber p...
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