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Model 990.28 Flanged Process Connection Diaphragm Seal
Brand: WIKA Alexander Wiegand SE & Co. KGDiaphragm seals are used for the protection of pressure measuring instruments in applications with difficult media. In diaphragm seal systems, the diaphragm of the diaphragm seal effects the separation of the instrument and the medium.
Features- Compact cell-type
- Intermediate flange with flush diaphragm
- Common standards and nominal widths available
- Wide variety of different materials and material combinations
- Instrument connection via radial gauge adapter
Specifications
Back-Up Flange Pressure Rating
- 150#RF
- 2500#RF
- 1500#RF
- 900#RF
- 600#RF
- 300#RF
Back-Up Flange Material
- Carbon Steel passivated, Powder-Coated
- 316 Stainless Steel
Wetted Material
- 316 Stainless Steel, Gold-Plated
- Zirconium
- Nickel 200
- Titanium, Grade 2
- Tantalum
- Incoloy 825
- 316 Stainless Steel, ECTFE (Halar) Coated
- 316 Stainless Steel, Teflon Coated
- 316 Stainless Steel, virgin Teflon-lined
- Hastelloy C-276
- Hastelloy B-2
- Monel
- 316 Stainless Steel
- Inconel 600
Upper Housing Material
- Titanium, Grade 2
- 316 Stainless Steel
Flange Rating
- Raised Face
Process Connection
- 5” Pipe
- 4” Pipe
- 3” Pipe
- 2” Pipe
- 1.5” Pipe
Instrument Connection
- 1/4” NPT Female
- Capillary Connection (To weld Capillary directly to Seal)
Diaphragm Seal Design
- Pancake Type, Flush Diaphragm
- Aggressive, highly viscous, crystallising or hot media
- Process industry
- High-pressure applications
