• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Standard or Nonstandard: Standard
  • Structure: Check, Check
  • Pressure: Medium Pressure, Medium Pressure
  • Power: Hydraulic, Hydraulic
  • Material: rubber
  • Temperature of Media: Medium Temperature
  • Media: Water
  • Port Size: DN20-2400
  • Place of Origin: Henan, China (Mainland)
  • Model Number: XH81
  • Brand Name: GYLDT, GYLDT
  • Application: General
  • Product Name: Duckbill Water Check Valve
  • BODY COLOR: BLACK
  • FLANGE COLOR: SILVER
  • MEDIUM: WATER SEAWATER ,OIL ACID AND SO ON
  • Body Material: Rubber
  • Flange Material: Carbon Steel

Packaging & Delivery

Packaging Details plastic bags , wooden box ,or as requested
Delivery Time according to your order or the feature of products

 

Duckbill Water Check Valve

 

1. How Do Rubber Duckbill Water Check Valve Work?

Rubber Duckbill Valves, widely used in the demanding applications of many industries, are precision-molded, one-piece elastomeric valves that provide reliable backflow prevention at low pressure differentials.  Rubber Duckbill valves allow free flow with positive differential pressure.  With negative differential pressure, backflow is checked.  Pressure drop across the valve is a feature unique to Rubber Duckbill valves. They can be designed to operate in a few millimeters (inches) of water to several hundred kPa (psi), depending on valve size, geometry and compound characteristics. Rubber Duckbill valves are also designed to start functioning at specific opening and closing pressure ranges, depending on your specifications. 

  • Normally Open one-way check valves
  • Prevents backflow leakage when minimal backpressure is applied
  • Can be installed easily into hole and sealed by compressing flange

 

2. Duckbill Water Check Valve Features

 

 1. Reliable backflow prevention

 

 2. 100% elastomeric construction eliminates maintenance

 

 3. Will not corrode, warp or freeze open or shut

 

 4. 1”-2” Cracking Pressure, Low Head loss

 

 5. Curved Bill enhances sealing around debris

 

 6. Custom built for each application based on pressure and flow conditions

 

 7. Available in diameters from 1/2" (12mm) to 96” (2400mm)

 

3. Duckbill Water Check Valve Type Data Sheet:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 4. Duckbill Water Check Valve DN150-350

 

SIZE I.D.(mm)VALVE DIMENSIONSStandard Dimensions for Retaining Ring Flange
C(mm)

F/F

(mm)

W(mm)Weight(kg)OD(mm)C(mm)id(mm)Hole Diam. (mm)Bolt Hole Num.T(mm)Weight(kg)
1502402852473.8280240186238153.7
2002953463065.2335295230238155.1
2503504003809.43903503002312155.2
30040043048012.84404003602312155.3
35046052054019.45004604102316177.7

 

 

 

 

 

 

 

 

 

 

 

5. Duckbill Water Check Valve DN400-2400

 

SIZE I.D.(mm)VALVE DIMENSIONSStandard Dimensions for Retaining Ring Flange
C(mm)F/F(mm)W(mm)Weight(kg)OD(mm)C(mm)id(mm)Hole Diam. (mm)Bolt Hole Num.T(mm)Weight(kg)
40051555060520.656551546025161710.4
45056560564525.561556551425201710.5
5006206307503567062056425201713
60072576088056.278072566830201715.1
7008407759507089584077230242022.6
80092086012209097592087430242020.3
900102094013201151075102097630242022.3
100011201150143014211751120107830282023.8
120013401210162027214001340129030322540
140015601270196037716201560150034362551.3
150016601330206041017201660160034362555
160017601409214045618201760170034403069
180019701705270058020451970192441443091.5
2000218018502860695226521802110424832112
2200239021473500770247523902310485234140.4
2400260026043838820268526002536485636144

6. Duckbill Water Check Valve Note:
1.The rubber duckbill valve weight is approximate.
2. Duckbill valve rubber flange bolt circles DN150-700 according to DIN PN10, DN800-2400 according to DIN PN6. Other standard available as ANSI Class150/300, BS-10, JIS 5K/10K.
3.The retaining ring flange drilling is matched to rubber flange accordingly.
4.Material of the retaining ring flanges usually is carbon steel, painted. SS304/316 available up on request.
5. We can make rubber duckbill valves with any dimensions rubber flange available as per requirement.
6. Duckbill valves of dimensions in the above table are available in inventory. Any other dimensions and designs available upon request.

 

 

 

 

 

 

 

 

Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview

Transactions

Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
China (Mainland) | Manufacturer, Trading Company
Supplier Assessments:
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $32,000
Learn More