Dunham Rubber & Belting Corporation
Dunham Rubber & Belting Corporation
682 Commerce Parkway West Drive, Greenwood, IN 46143
Toll Free: 800.876.5340
Tel: 317.888.3002
Fax: 317.888.2335
Email: mail@dunhamrubber.com
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The torque (force) required to close the handles on a pair of cam and groove fittings will vary according to the gasket chosen.
Due to the nature of the PTFE® material, the various PTFE® gasket designs will require the most torque, increasing as you go from envelope to encapsulated, and finally, accordion.

PTFE® white Buna filler (TFWB) and PTFE® encapsulated silicone (TES) all contain FDA approved materials.
PTFE® accordion gaskets (TFACC) are recommended for use with viscous (thick) fluids only.
Encapsulated gasket pressure ratings are reduced to 125 PSI for 3/4" - 4" at ambient temperature (70ºF)
PTFE® encapsulated Viton® (TEV) gaskets - maximum operating temperature 200ºF
PTFE® encapsulated silicone gaskets (TES) gaskets - maximum operating temperature 225ºF
Maximum operating temperatures for specific chemicals may be lower.
PTFE Gasket-Envelope
Unit of Measure
1 2 

Item #

Size

Material

Type

List Price

50-G-TF-VI N/A 1/2 in N/A PTFE® with Viton® Filler N/A Envelope QUOTE
50-G-TF N/A 1/2 in N/A PTFE® with Buna Filler N/A Envelope QUOTE
75-G-TF N/A 3/4 in N/A PTFE® with Buna Filler N/A Envelope QUOTE
75GTFACC N/A 3/4 in N/A PTFE® Accordion N/A Accordion QUOTE
75-G-TF-VI N/A 3/4 in N/A PTFE® with Viton® Filler N/A Envelope QUOTE
75-G-TES N/A 3/4 in N/A PTFE® Encapsulated Silicone N/A Encapsulated QUOTE
75-G-TEV N/A 3/4 in N/A PTFE® Encapsulated Viton® N/A Encapsulated QUOTE
100-G-TEV N/A 1 in N/A PTFE® Encapsulated Viton® N/A Encapsulated QUOTE
100GTFVI N/A 1 in N/A PTFE® with Viton® Filler N/A Envelope QUOTE
100-G-TES N/A 1 in N/A PTFE® Encapsulated Silicone N/A Encapsulated QUOTE
100GTFACC N/A 1 in N/A PTFE® Accordion N/A Accordion QUOTE
100-G-TF N/A 1 in N/A PTFE® with Buna Filler N/A Envelope QUOTE
125-G-TES N/A 1-1/4 in N/A PTFE® Encapsulated Silicone N/A Encapsulated QUOTE
125-G-TF N/A 1-1/4 in N/A PTFE® with Buna Filler N/A Envelope QUOTE
125GTFACC N/A 1-1/4 in N/A PTFE® Accordion N/A Accordion QUOTE
125-G-TEV N/A 1-1/4 in N/A PTFE® Encapsulated Viton® N/A Encapsulated QUOTE
125GTFVI N/A 1-1/4 in N/A PTFE® with Viton® Filler N/A Envelope QUOTE
150-G-TEV N/A 1-1/2 in N/A PTFE® Encapsulated Viton® N/A Encapsulated QUOTE
150GTFEP N/A 1-1/2 in N/A PTFE® with Ethylene Propylene Filler N/A Envelope QUOTE
150GTFACC N/A 1-1/2 in N/A PTFE® Accordion N/A Accordion QUOTE
150-G-TES N/A 1-1/2 in N/A PTFE® Encapsulated Silicone N/A Encapsulated QUOTE
150-G-TF N/A 1-1/2 in N/A PTFE® with Buna Filler N/A Envelope QUOTE
150GTFVI N/A 1-1/2 in N/A PTFE® with Viton® Filler N/A Envelope QUOTE
200GTFVI N/A 2 in N/A PTFE® with Viton® Filler N/A Envelope QUOTE
200-G-TES N/A 2 in N/A PTFE® Encapsulated Silicone N/A Encapsulated QUOTE
Unit of Measure
1 2