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Flanged Process Connection Diaphragm Seals

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Flanged Process Connection Diaphragm Seals

Flange-Type Seals with Extended Diaphragm
Model No: 990.29

Flange with an extended welded diaphragm with contoured diaphragm bed

Available for all standard dimensions and nominal diameters

With special materials all wetted parts of the selected material

Process connection Flanges DN 50, 80, 100, 125 following EN 1092-1, sealing face form B1 or NPS 2”, 3”, 4”, 5” per ASME B 16.5, RF 125 ... 250 AA

Pressure rating See table (reverse side)

Suitable pressure ranges 25 mbar and up, depending on diaphragm size and process conditions

Material of wetted parts Stainless steel 316L

Diaphragm extension 50, 100, 150 or 200 mm

Instrument connection Material stainless steel 316L, axial weld-in connection or adaptor G ½ female per EN 837-1, welded to capillary

Capillary extension Axial entry capillary of stainless steel 1.4571, welded to body, armoured, armour material stainless steel 1.4301 Standard extensions: 1, 1.6, 2.5, 4, 5, 6, 7, 8 m Minimum curve radius: 30 mm

Chemical process industry

Petrochemical industry

Suitable for corrosive, highly viscous, crystallising or hot pressure media

For thick-walled or isolated tanks and pipelines