4″ 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.I.D.O.D.B.C.# of HolesHole Dia.
G15266 * *6.13" [155.6 mm]8.25" [209.6 mm]7.25" [184.2 mm]8.56" [14.2 mm]
G75346TF5.81" [147.6 mm]8.25" [209.6 mm]7.25" [184.2 mm]8.56" [14.2 mm]
G75346TF-MIL6.00" [152.4 mm]8.25" [209.6 mm]7.25" [184.2 mm]8.56" [14.2 mm]

** Material CodeMaterial DescriptionThickness (T)Temp. Range
CBCork Buna.09" [2.3 mm] Note: 8" & 12" Sump = .13" [3.3 mm]14 to 231°F (-10 to 110°C)
BNNitrile (Buna-N).125" [3.2 mm]-40 to 230°F (-40 to 110°C)
VBFKM Type B (Viton® B).125" [3.2 mm]-20 to 400°F (-29 to 204°C)
NANon-Asbestos - Aramid fibers w/ NBR binder.09" [2.3 mm]-65 to 750°F (-54 to 399°C)
TDPTFE w/ Inorganic Fillers (One piece solid gasket).063" [1.6 mm]-350 to 520°F (-212 to 271°C)
TFSlit Style PTFE Envelope w/ Non-asbestos Core.17" [4.3 mm]-65 to 400°F (-54 to 204°C)
TF-MILMil Style PTFE Envelope w/ Non-asbestos Core.17" [4.3 mm]-65 to 400°F (-54 to 204°C)
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.