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>>Diaphragm Welding Chemical Sealed Gauge
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Diaphragm welding, chemical sealed diaphragm pressure gauge
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Diaphragm welding, chemical sealed diaphragm pressure gauge, by welding, chemical diaphragm seal with the isolation of different types of pressure gauge matching components. In measured media through membrane deformation under the pressure of the internal working fluid filling the transfer, allocated from the upper to the instructions of the manometer pressure value.
The diaphragm pressure gauge welded structure applicable to the strong corrosion, temperature, high viscosity, easy crystallization, easy and to prevent coagulation and the accumulation of sediments and washed occasions medium pressure measurement.
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YTP - 100HR2F2B diaphragm pressure gauge
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YTP - 150HF2B diaphragm pressure gauge
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Brady, the companies manufacturing welding diaphragm chemical sealed diaphragm pressure gauge its characteristics:
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Media contact patch and isolated part of the flange of the materials, according to the needs of its clients freedom of choice.
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Double Diaphragm Isolation laser welding technology, sealing performance than TIG welding, plasma welding process three times.
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Isolation of selected NC, and design-over-voltage protection function.
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Helium mass spectrometer detect the product more reliable.
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Isolation of the corrosion resistance of
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Isolation of corrosion resistance through the appropriate selection and measurement of dielectric isolation contact patch connecting flange gaskets and materials to be guaranteed.
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Corrosion on the isolation of membrane material selection
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Corrosion MEDIA
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Corrosion-resistant materials
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Bronze (Strip - 0.4)
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SUS316 Coarse
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Pure tantalum (Ta)
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Mongolia Nile (Ni70Cu30)
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Harrington (HC)
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Polytetrafluoroethylene (F4)
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（H2SO4） Sulfuric acid (H2SO4)
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V
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△
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○ ,
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V
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V
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V
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Nitric Acid (HNO3)
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╳ By
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V
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○ ,
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╳ By
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V
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V
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Hydrochloric acid (HCl)
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△
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╳ By
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○ ,
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╳ By
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V
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V
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Phosphoric acid (H3PO4)
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V
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V
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○ ,
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V
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V
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V
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Acetic acid (CH3COOH)
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V
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V
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○ ,
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V
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○ ,
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V
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Caustic soda (NaOH)
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△
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○ ,
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△
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○ ,
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○ ,
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V
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Soda (Na2CO3)
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○ ,
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○ ,
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○ ,
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○ ,
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V
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V
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Baking soda (NaHCO3)
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V
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○ ,
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○ ,
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○ ,
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○ ,
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V
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Chlorine (CI)
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干：V Stem: V
湿：╳ Wetlands: by
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干：V Stem: V
湿：╳ Wetlands: by
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○ ,
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干：V Stem: V
湿：╳ Wetlands: by
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V
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V
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Bromine (Br2)
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干：△ Stem: △
湿：╳ Wetlands: by
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干：╳ Stem: by
湿：△ Wetlands: △
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○ ,
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干：○ Stem:,
湿：╳ Wetlands: by
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○ ,
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V
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Ammonia (NH3)
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╳ By
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V
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╳ By
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╳ By
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○ ,
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V
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Water (30% NaCl)
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V
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V
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○ ,
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○ ,
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○ ,
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V
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Symbol:, 2000 - Best; △ - conditional use; V - can be used; By - not available.
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The companies generally use the material for coarse-0Cr17Ni12m above room temperature corrosion resistance for the material selection, in the exceptional circumstances of the corrosion resistance and I choose to specific companies for more information.
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Several diaphragm pressure gauge on the work of filling the choice
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Work liquid names
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Divide device temperature range / C
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Use
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Instrument normal work environment temperature ℃
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Silicone (low viscosity)
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-40 ~ 130
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General use
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-30 ~ 50
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Silicone (high viscosity)
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-30 ~ 240
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Using high temperature
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-20 ~ 60
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Fluorinated oil
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-30 ~ 160
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Salt, acids used
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-20 ~ 50
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Glycerol (glycerol)
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-5 ~ 100
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With food
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5 ~ 40
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Propanediol
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-30 -100
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With food
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-20 ~ 40
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Selection of the companies are generally filled with silicone fluid for the (low viscosity)
Note: In addition to the following general criteria for isolation of company size, according to customer requirements for special processing, the general situation in welding flange diameter should be not less than chic.
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F2B company general standard
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Table Selection
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D
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D1
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D2
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D3
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t T
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f F
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n-d N-d
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Range of
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1 A
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Φ150 Pass
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Φ110
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Φ82
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Φ59
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18
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2
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4-Φ18 4 - Φ18
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-0.1～0MPa -0.1 ~ 0MPa
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2
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Φ115
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Φ85
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Φ68
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Φ52
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18
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2
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4-Φ14 4 - Φ14
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≤2.5MPa ≤ 2.5MPa
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3
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Φ115
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Φ85
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Φ68
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Φ36
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18
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2
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4-Φ14 4 - Φ14
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≥4MPa ≥ excludes
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F4A adjustable angle (Table first installation will transform various angles)
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F4B adjustable angle (Table first installation will transform various angles)
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