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 DescriptionThicknessTemp. RangeI.D.O.D.B.C.# of HolesHole Dia.
G15181CBCork Buna09"
[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]
G15181VBFKM 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]
G15181NANon-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]
G15181TDReduced 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]
G75344TFSlit 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-MILMil 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)