World Wide Metric, Inc.
37 Readington Road
Branchburg, New Jersey 08876
Phone: 732-247-2300 • Fax: 732-247-7258
E-Mail: sales@worldwidemetric.com • Web site: www.worldwidemetric.com
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Body type: Flangeless wafer
Valve function: Back flow prevention
Installation: Clamping between flanges
Flange connections: PN 10 / 16 / ANSI Class 150 (other connections on request)
Valve shut off pressure: Between 0,2 and 16 bar
Pressure differential to open: 0,02 bar minimum
Leakage rate: ISO 5208, Rate A (uni-directional tight shut off)
Face to Face dimension: ISO 5752 / EN 558, basic series 16 (wafer long)
Available type approvals: LRS, GL

Material Options:
Body: GGG40 Ductile Iron, Aluminum Bronze
Disc: Aluminum Bronze
Shaft: Stainless Steel 1.4401
Liners: NBR, EPDM
Unit of Measure

Specifications

Size

 N/A DN500 - 20"

A

 N/A 486 mm

B - Diameter

 N/A 620 mm

C

 N/A 152 mm

D

 N/A 159 mm

E

 N/A 428 mm

Weight

 N/A 105.0 kg

Flange Connections

 N/A ANSI Class 150 PN 10 PN 16

Valve Shut off Pressure

 N/A 0.2-16 bar

Available Type Approvals

 N/A GL LRS

Actuation Possibilities

 N/A Manual

Body Material

 N/A Aluminum Bronze GGG40 Ductile Iron

Disc Material

 N/A Aluminum Bronze

Stem Material 

 N/A Stainless Steel 1.4401

Liner Material

 N/A Ethylene Propylene Diene Monomer (EPDM) Nitrile Butadiene Rubber (NBR)