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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Concentric Butterfly Valve with Vulcanized Rubber Lining
Face to Face according to ISO 5752/ EN 558, basic series 20 (wafer short)
Flange Connection: DIN PN 10/16
Size Range: DN350 - 1000 (14" - 40")
Actuation: Manual, Electric, Pneumatic, Hydraulic
Top Flange according to ISO 5211

Material Options:
- Body: GGG40 Ductile Iron, GG25 Cast Iron, Carbon Steel, Stainless Steel, Bronze RG10
- Disc: Duplex Stainless Steel 1.4462, Martensitic Stainless Steel 1.4408, Aluminum Bronze
- Shaft: Duplex Stainless Steel 1.4462, Martensitic Stainless Steel 1.4408, Aluminum Bronze
- Liners: NBR, EPDM Standard Grade, EPDM Special Grade, FPM Viton

Body type: Single flange wafer short type, centric, rubberlined
Valve function: Isolating valve (on/off) and/or regulating valve
Installation: Clamping between flanges with possibility for downstream pipe dismantling. As end of line valve
Valve shut off pressure: 2,5 / 6 / 10 / 16 bar
Leakage rate: ISO 5208, Rate A (Bi-directional tight shut off)
Available type approvals: DNV,ABS,GL,RIN,NKK,RMRS,FM
Unit of Measure

Specifications

Size

 N/A DN500 - 20"

A

 N/A 486 mm

B - Diameter

 N/A 576 mm

C

 N/A 127 mm

D

 N/A 360 mm

E

 N/A 413 mm

F

 N/A 25 mm

G

 N/A 50 mm

H - Diameter

 N/A 30 mm

K

 N/A 140 mm

L

 N/A 175 mm

M - Diameter

 N/A 17 mm

n - Number of Holes

 N/A 4

S

 N/A 32 mm

T

 N/A 60 mm

X

 N/A 470 mm

Y

 N/A 180 mm

ISO 5211

 N/A F14

Weight

 N/A 135.0 kg

Valve Function

 N/A Isolating valve (on,off) and regulating valve Regulating valve

Flange Connections

 N/A DIN PN 10 DIN PN 6

Valve Shut off Pressure

 N/A 10 bar16 bar2.5 bar6 bar

Available Type Approvals

 N/A ABS DNV FM GL NKK RIN RMRS

Actuation Possibilities

 N/A Electric Hydraulic Manual Pneumatic

Body material

 N/A Bronze RG10 Carbon Steel GG25 Cast Iron GGG40 Ductile Iron Stainless Steel

Stem Material 

 N/A Aluminum Bronze Duplex Stainless Steel 1.4462 Martensitic Stainless Steel 1.4408

Liner Material

 N/A Ethylene Propylene Diene Monomer (EPDM) Special Grade Ethylene Propylene Diene Monomer (EPDM) Standard Grade Fluoroelastomer Polymer (FPM) Viton Nitrile Butadiene Rubber (NBR)