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
Print Back
Concentric Butterfly Valve with Vulcanized Rubber Lining
Face to Face according to ISO 5752 / EN 558, basic series 20 (wafer short)
Flange Connection: DIN PN10 / 16
Size Range: DN50 - 300 (2" - 12")
Design Pressure: 16 Bar / 232 psi
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: Semi-lug wafer short type, centric, rubberlined
Valve function: Isolating valve (on/off) or regulating valve
Installation: Clamping between flanges with possibility for downstream pipe dismantling. As end of line valve
Valve shut off pressure: 6 / 10 / 16 bar. As end of the line valve max. 10 bar
Leakage rate: ISO 5208, Rate A (Bi-directional tight shut off)
Available type approvals: KIWA,DVGW,WRC,LRS,DNV,ABS,BV,GL,RIN,NKK,RMRS,FM,UL,VdS,APSAD
Unit of Measure

Specifications

Size

 N/A DN250 - 10" 250 mm

A

 N/A 250 mm

B - Diameter

 N/A 315 mm

C

 N/A 68 mm

D

 N/A 194 mm

E

 N/A 245 mm

F

 N/A 15 mm

G

 N/A 45 mm

H - Diameter

 N/A 24 mm

K

 N/A 102 mm

L

 N/A 125 mm

M - Diameter

 N/A 11 mm

n - Number of Holes

 N/A 4

R

 N/A 47 mm

X

 N/A 241 mm

Y

 N/A 91 mm

ISO 5211

 N/A F10

Weight

 N/A 24.0 kg

Valve Function

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

Flange Connections

 N/A PN 10 PN 16

Valve Shut off Pressure

 N/A 10 bar16 bar6 bar

Available Type Approvals

 N/A ABS APSAD BV DNV DVGW FM GL KIWA LRS NKK RIN RMRS UL VdS WRC

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)

Standard

 N/A DIN