WIKA In-line diaphragm seal Model 981.27

Application

• For direct, permanent installation in pipelines

• For flowing, pure and aggressive media

• Chemical process industry

• Petrochemical industry

Special Features

• Completely round, no corners and edges

• For direct installation between two flanges

• Wide choice of special materials

• Heatable version available

Description

Process connection
Sealing face, Form B1 or ASME RF 125 ... 250 AA For flanges following ASME B 16.5, 1", 2", 3", 4"
Nominal size: see drawing and tables on datasheet

Pressure rating
Class 150/300

Pressure ranges
Preferably mounted to pressure gauges NS 63, 100, 160 or pressure transmitters, Pressure ranges 0 ... 15 to 0 ... 600 psi

Housing and material of wetted parts
Stainless steel (AISI 316L)

Measuring instrument connection
Pressure gauge or transmitter directly welded, process pressure transmitter with threaded adapter

Options

Process connection

• Larger nominal sizes

• Other flange connections on request

• Sealing faces per EN 1092-1, form B2 or per ASME B 16.5, RF 125 AA, 500 AA, RFSF; EN 1092-1 groove and tongue; projection and recess; ASME B 16.5 snap ring groove form RJF (limited for special materials, please request)

• Flame arrester approved for zone 0

Material of wetted parts

• Stainless steel 316TI, 316, 321, Monel, Hastelloy B3, C22, C276, tantalum

Measuring instrument connection

• Capillary, when ordering please specify: length of capillary

• Cooling tower (for directly mounted gauge when fluid temperature > +284°F)

Capillary

• Custom lengths between 3 and 25 ft.

• Soft polyethylene or PTFE armour