Henan Liwei Industry Co., Ltd.
| Payment Terms | T/T, Western Union, L/C, D/A, MoneyGram |
| Supply Ability | 100000 Pieces per Month |
| Delivery Time | After payment 15-30 working days |
| Packaging Details | Inner plastic film,outer wooden case, if multiple compensators are packed in one case, we will use steel frame to fix it. |
| Product name | Duckbill Check Valve |
| Length | 95-500mm |
| Application | Air, Water, Sewage, Acid, Oil, Etc. |
| Material of rubber | EPDM/Neoprene/Normal rubber |
| Noise Reduction | Yes |
| Function | Prevent Backflow |
| Temperature of Media | Medium Temperature |
| Drawing | Offer |
| Brand Name | liwei |
| Model Number | DN50-DN3000 |
| Certification | ISO9001, TUV, WRAS, CO, MTC, PL, IV etc |
| Place of Origin | Henan, China |
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Product Specification
| Payment Terms | T/T, Western Union, L/C, D/A, MoneyGram | Supply Ability | 100000 Pieces per Month |
| Delivery Time | After payment 15-30 working days | Packaging Details | Inner plastic film,outer wooden case, if multiple compensators are packed in one case, we will use steel frame to fix it. |
| Product name | Duckbill Check Valve | Length | 95-500mm |
| Application | Air, Water, Sewage, Acid, Oil, Etc. | Material of rubber | EPDM/Neoprene/Normal rubber |
| Noise Reduction | Yes | Function | Prevent Backflow |
| Temperature of Media | Medium Temperature | Drawing | Offer |
| Brand Name | liwei | Model Number | DN50-DN3000 |
| Certification | ISO9001, TUV, WRAS, CO, MTC, PL, IV etc | Place of Origin | Henan, China |
| High Light | 1 duckbill check valve ，2 duckbill check valve ，4 duckbill check valve | ||
Sewage Disposal Duckbill Check Valve With Corrosion And Aging Resistance
1. Clamp type: installed at the outlet of the drain pipe
2. Flange type: installed at the outlet end of the drain pipe with flange
3. Installation plate type: installation on the structure at the end of the water outlet
4. Built-in type: installed with urban rainwater sewage and system outlet end
5. Mortar and cement pipeline type: installed at the end of mortar and cement pipelines
Duckbill Check Valve is a new type of water supply and drainage valve product with a full rubber structure, a duckbill shaped shape, and a "forward flow, reverse check" function. It is made according to force analysis and force calculation, using different design mechanisms for different working conditions, selecting different rubber formulas, and following special processes. When working in the forward direction, water flows into the inlet, and a small water pressure can open the valve. The higher the water pressure, the greater the valve opening and the greater the water flow rate. When working in reverse, the valve port naturally closes and is sealed in reverse. The greater the back pressure, the tighter the valve port, and the better the sealing effect. It is widely used in various discharge outlets such as municipal, water conservancy, sewage treatment, etc., to prevent backflow and backflow, and is an ideal product to replace flap doors.
| 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 |
1. Strong bearing capacity, vehicle running, stacking heavy objects are not affected.
2. Strong anticorrosion ability, service life can reach more than 30 years.
3. Omni-directional protection rubber joint, make rubber joint longer service life.
♦ We offer good quality products in competitive price.
♦ We have rich experience in this industry.
♦ We have short delivery time .
♦ Shipped the goods on time.
♦ Meet your special requirements.
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:When the products will be shipped ?
A:Within 7~25 days after receiving the prepayment.
Q:Do you have OEM service ?
A:Yes . A variety of products size , quality and quantity can be cutomized according to your needs.
Q:Could you offer a free sample ?
A:Yes , samples can be provided for free.
Q:How can I pay for the products ?
A: We accept a variety of payment methods. Such as T/T , L/C,D/P ,Western Union , Paypal ,Trade Assurance.
Q: How can you guarantee the quality or any warranty?
A: If any quality problems during use, all the products can be returned or according to consumer's requests
Q: Can I visit your factory before the order?
A: Yes, welcome to our factory to check the quality
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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