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WIKA 990.31 塑料腔體螺紋連接化學(xué)密封隔膜壓力表 PVC-U PP PVDF
Threaded Process Connection, Diaphragm Seals
Model 990.31, Plastic Design
Diaphragm Seal, Threaded Process Connection, Plastic Design
Model 990.31 with Pressure Gauge Model 232.50 NS 100
Applications
Process instrumentation of chemical plants
Plating industry
Waste water treatment
Fertiliser industry
Special Features
All-plastic design
Metal-free
Process connection with thread for direct mounting, but also suitable for bonding (PVC-U) or welding (PP, PVDF)
Description
Pressure rating
PN 10 (with water, 20 °C)
Suitable pressure ranges
0 ... 1 bar to 0 ... 10 bar
not suitable for + / - ranges and vacuum ranges
Operating pressure and process temperature
See also diagram pressure-temperature rating on page 2
Upper housing (instrument connection)
G ¼ female
G ½ female
Material:
PP (polypropylene), fibre-glass reinforced, blue RAL 5022
Diaphragm with sealing ring
EPDM, with PTFE foil on the medium side
Lower housing (process connection)
d 25, G ¼ female (optional ¼ NPT)
d 32, G ½ female (optional ½ NPT)
Material:
PVC-U (polyvinyl chloride), grey RAL 7011
PP (polypropylene), grey-beige RAL 7032
PVDF (polyvinylidene fluoride), opaque, yellowish white
Multi-purpose connection, optionally via threaded neck,bonding neck (PVC-U) or welding neck (PP, PVDF)
Mounting position
any position possible, preferably measuring instrument on top
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