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卓爾瑞華（北京）科技有限公司
卓爾瑞華（北京）科技有限公司
WIKA 990.35 帶插入深度的夾心型餅式隔膜密封式 夾心隔膜壓力表
| 類型： | 隔膜壓力表 | 型號： | 990.35 |
| 聯接型式： | 帶插入深度 | 精度等級： | 1.0 |
| 品牌： | WIKA/威卡 | 環境溫度： | -20-60（℃） |
| 加工定制： | 是 | 公稱直徑： | 100（mm） |
| 測量范圍： | 0-100（MPa） |
WIKA 990.35 帶插入深度的夾心型餅式隔膜密封式 夾心隔膜壓力表
Flanged Process Connection, Diaphragm Seals
Cell-Type （Sandwich） Seals with Extended Diaphragm
Model 990.35
Diaphragm Seal, Cell-Type （Sandwich） Seal with Extended
Diaphragm Model 990.35
Applications
Chemical process industry
Petrochemical industry
Suitable for corrosive, highly viscous, crystallising or hot pressure media
For thick-walled or isolated tanks and pipelines
High pressure applications
Special Features
Sandwich flange （cell） 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
Description
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
For the mounting an additional blind flange is required （not included in the scope of delivery）
Pressure rating
See table （reverse side）
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, adaptor G ½ female per EN 837-1, welded to capillary
Capillary extension
Radial 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
Options
Process connection
Sealing faces per EN 1092-1, form B2 or per ASME B 16.5, RF 125 AA, 500AA, RFSF; EN 1092-1 groove and tongue; projection and recess; ASME B 16.5 snap ring groove form RJF （limited for special materials, please inquire）
Flame arrester approved for Zone 0
Instrument connection
Adaptor with optional welding or pipe thread nipple
Material of wetted parts
Stainless steel 1.4435, 1.4541, 1.4571, 1.4462 titanium; Hasloy B3, C4, C276; Monel 400; nickel Inconel 600; Incoloy 825; tantalum
Stainless steel 316L, diaphragm with gold plating approx. 25 micron
PFA coating max. 260 °C
ECTFE （Halar®） coating max. 150 °C
Diaphragm extension
Custom lengths available
Capillary extension
Custom extension lengths between 1 and 15 m
Soft polyethylene or PTFE armour
Dimensions in mm
Ordering information
Model / Process connection （standard, nominal size, pressure rating, sealing face） / Extension RL / Material of wetted parts /
Instrument connection: directly combined or capillary extension, capillary length / System fill fluid / Pressure gauge model /
Process conditions: application, process temperature max. and min., ambient temperature max. and min.
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