WIKA 990.26 帶內(nèi)嵌膜片的法蘭式
隔膜密封法蘭隔膜壓力表 DN15
Flanged Process Connection, Diaphragm
Seals with Internal Diaphragm
Model 990.26
Diaphragm Seal, Flanged Process Connection Model 990.26
with Pressure Gauge Model 233.50 NS 100
Applications
Chemical process industry
Petrochemical industry
Suitable for corrosive, highly viscous, crystallising or hot pressure media
For small flanged process connections
Special Features
Open flange with an internal welded diaphragm with contoured diaphragm bed
No sealing or clamping elements
Compact design
Description
Process connection
Flanges DN 15, 20, 25 following EN 1092-1,
sealing face form B1
or NPS ½", ¾", 1" per ASME B 16.5, RF 125 ... 250 AA
Pressure rating
See table (reverse side)
Suitable pressure ranges
400 mbar and up, depending on diaphragm size and
process conditions
Material of wetted parts
Stainless steel 316L
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 m
Minimum curve radius: 30 mm
Ordering information
Model / Process connection (standard, nominal size, pressure rating, sealing face) / Material of wetted parts / Instrument
connection: directly combined or capillary extension, capillary length / Fill fluid / Pressure gauge model / Process
conditions: application, process temperature max. and min., ambient temperature max. and min.
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