Standard Materials of Construction

Body

ASTM A216 WCB/WCC Cast Carbon Steel Hard Chrome Plated

Plug

ASTM A216 WCB/WCC Cast Carbon Steel, Electroless Nickel Plated*

Bonnet & Lower Plate

ASTM A216 WCB/WCC Cast Carbon Steel

Slips

ASTM A536-80-55-00 ductile iron

Seals

Viton and other materials available to meet special requirements

Packing Gland

17-4 Stainless Steel

DURA SEAL TRIM SELECTION CHART

Fluoro Elastomers Slip Seal Materials : -10 to +450 degrees F

 

V

Viton

FV Standard Seal**

V-90

Viton 90 Durometer

Standard HiDp

V-FRV

Fiber Reinforced Viton

Optional HiDp

VGF

Viton GF

Viton with enhanced chemical resistance

V-E

Viton Extreme

Excellent resistance to chemicals and fluids

Nitrile Elastomers Slip Seal Materials : -75 to +250 degrees F

 

NT-S

Nitrile

Standard Nitrile Material

FVM

Modified Nitrile

For Reformulated Gasoline Seal Material

NT-LT

Nitrile low temp

Low Temp Applications

Special Applications Slip Seal Materials

EPR

Ethylene-propylene

Ammonia-but not hydrocarbon: 65 to +300 degrees F

EC

Epichlorohydrin

Good Low Temp Material : 65 to +250 degrees F

* Contact factory for special applications
**Franklin Valve Standard Slip Seal Material is Viton. For non-standard seal material-consult factory.
Other slip seal materials, not shown-consult factory.

©2005 • DuraSeal is a registered trademark of Franklin Valve and Supply