3″ Drain Sump Gasket (TTMA)
Betts flange gaskets are available in a variety of compounds in order to satisfy a wide range of service requirements. The full-face gaskets are ideal for low-torque sealing applications on drain sumps and valve mounting. Bolt-hole patterns are in accordance with TTMA recommended practice. Depending on gasket size, all materials may not be available.
Product Details
| Part No. | Material Description | Thickness | Temp. Range | I.D. | O.D. | B.C. | # of Holes | Hole Dia. |
|---|---|---|---|---|---|---|---|---|
| G15181CB | Cork Buna | 09" [2.3 mm] | 14 to 231°F (-10 to 110°C) | 5.00" [127 mm] | 7.25" [184.2 mm] | 6.25" [158.8 mm] | 6 | .56" [14.2 mm] |
| G15181VB | FKM Type B (Viton® B) | .125" [3.2 mm] | -20 to 400°F (-29 to 204°C) | 5.00" [127 mm] | 7.25" [184.2 mm] | 6.25" [158.8 mm] | 6 | .56" [14.2 mm] |
| G15181NA | Non-Asbestos - Aramid fibers w/ NBR binder | .09" [2.3 mm] | -65 to 750°F (-54 to 399°C) | 5.00" [127 mm] | 7.25" [184.2 mm] | 6.25" [158.8 mm] | 6 | .56" [14.2 mm] |
| G15181TD | Reduced Surface Area PTFE w/ Inorganic Fillers (One piece solid gasket) | .063" [1.6 mm] | -350 to 520°F (-212 to 271°C) | 5.00" [127 mm] | 7.25" [184.2 mm] | 6.25" [158.8 mm] | 6 | .56" [14.2 mm] |
| G75344TF | Slit Style PTFE Envelope w/ Non-asbestos Core | .17" [4.3 mm] | -65 to 400°F (-54 to 204°C) | 4.75" [120.7 mm] | 7.25" [184.2 mm] | 6.25" [158.8 mm] | 6 | .56" [14.2 mm] |
| G75344TF-MIL | Mil Style PTFE Envelope w/ Non-asbestos Core | .17" [4.3 mm] | -65 to 400°F (-54 to 204°C) | 5.00" [127 mm] | 7.25" [184.2 mm] | 6.25" [158.8 mm] | 6 | .56" [14.2 mm] |
| Notes: To achieve maximum sealing capability, proper star pattern tightening sequence must be followed. PTFE gaskets require re-torque after initial installation. Flange surfaces must be flat and free of scratches, damage or corrosion. | ||||||||
Engineering Bulletins
EB-03-23: PTFE Gaskets and Seals (Filled, Envelope and Encapsulated)