Natural Rubber/NBR/EPDM RF Flanged Duckbill Check Valve
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Natural Rubber/NBR/EPDM RF Flanged Duckbill Check Valve

Natural Rubber/NBR/EPDM RF Flanged Duckbill Check Valve

Natural Rubber/NBR/EPDM RF Flanged Duckbill Check Valve Of Vatac Series Duckbill Check Valves are a flexible sleeve desi
Basic Info
Model NO. H44
Material Cast Steel
Connection Form Flange
Structure Tubular
Pressure 1.0-2.5MPa
Function Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
Sealing Form Metal
Flow Direction Unidirection
Standard ANSI
Application Industrial Usage, Water Industrial Usage, Household Usage
Characteristic Duckbill Check Valve
Design & Manufacture API 6D, Asme B16.34, DIN 3202
Pre-Temp. Rating Asme B16.34
Face to Face API 594
Ends Connection Asme B16.25, Asme B16.5/16.47
Inspect & Test API 598
Certificate 1 Dnv CE 0575
Certificate 2 ISO 9001: 2008
Transport Package Sea Worthy
Specification API, ANSI, ASME, DIN, JIS, GB etc.
Trademark VATAC or OEM
Origin China
HS Code 84818010
Production Capacity 65000 T Per Year
Product Description

Natural Rubber/NBR/EPDM RF Flanged Duckbill Check Valve


Natural Rubber/NBR/EPDM RF Flanged Duckbill Check Valve Of Vatac Series Duckbill Check Valves are a flexible sleeve design made of quality fab- ric-reinforced elastomer materials for maxi-mum resistance to corrosion and wear caused by continuous operation with abrasive slurries, sludge, or effluent. The flexible sleeve provides maximum flow with a mini-mum pressure drop across the valve at all times

1. Construction is as follows:

- Flange Duckbill Check Valve
- Slip-over Duckbill Check Valve
- In-line Duckbill Check Valve
- Low Pressure
- Flanged Ends to ASME B16.5 and B16.47 A/B

2. Main Part & Materials

Part Names
Part Materials
FlangeQ235F304F316F304LF316F316LSAF 2205BRONZE
Body MaterialNATURAL RUBBER/NBR/EPDM
Suitable MediumWater, Waste Water and Sewage
Suitable Temperature-29~120 °C

3. Normal Pressure Rating
PN10 & PN16, CLASS150

4. Normal Size Range
DN50~DN1000, 2"~40"

5. Pictures

Natural Rubber/NBR/EPDM RF Flanged Duckbill Check Valve

Natural Rubber/NBR/EPDM RF Flanged Duckbill Check Valve