Description
Differential pressure gauge WIKA model 732.51
These differential pressure gauges are made of highly corrosion-resistant stainless steel and feature an all-metal, all-welded media chamber to ensure long-term leak tightness (no elastomer sealing elements).
A high overpressure safety is achieved by the all-metal construction and the close-fitting design of the pressure measuring diaphragm.
With its high-grade stainless steel construction and robust design this pressure gauge is geared to chemical and process engineering applications.
It is suitable for gaseous or liquid media, also in aggressive ambience.
The optionally available low-temperature version allows the use for temperatures of down to -70 °C (-94 °F).
The scale ranges of 0 … 16 mbar to 0 … 25 bar are available to meet the requirements of a wide variety of applications.
Design
DIN 16003
Lower mount process connections, highly corrosion-resistant all-metal construction.
measuring cell secured against unauthorised intervention, process connection location adjustable to mounting conditions, WIKA trade pattern DT – GM 86 08 176
Nominal size in mm
100, 160
Accuracy class
1.6
Scale ranges
0 … 16 mbar to 0 … 25 bar
Scale range 0 … 16 mbar: Scale length approx. 180 ∢ ° or all other equivalent vacuum or combined pressure and vacuum ranges
Pressure limitation
Steady: full scale value
Fluctuating: 0.9 x full scale value
Permissible temperature
Ambient: -20 … +60 °C unfilled
-40 … +60 °C with silicone oil filling 1)
-70 … +60 °C Low-temperature version 1)
Medium: ≤100 °C
Temperature effect
When the temperature of the measuring system deviates from the reference temperature (+20 °C): max. ±0.5 %/10 K of full scale value
Ingress protection
IP54 per IEC/EN 60529 (with liquid filling IP65)
Measuring chamber with process connection (wetted)
Stainless steel 1.4571,
lower mount (LM),
2 x G ¼ female
Pressure elements (wetted)
≤ 0.25 bar: Stainless steel 1.4571
> 0.25 bar: NiCr-alloy (Inconel)
Sealing bellows (wetted)
Stainless steel 1.4571
Venting of the media chambers (wetted)
Stainless steel 1.4571 for scale ranges ≤ 0.25 bar (optional for scale ranges > 0.25 bar)
Movement
Stainless steel
Dial
Aluminium, white, black lettering
Pointer
- Model 732.51: Adjustable pointer, aluminium, black
- Model 733.51: Standard pointer, aluminium, black
Case
Stainless steel, with pressure relief
Window
Laminated safety glass
Bezel ring
Cam ring (bayonet type), stainless steel
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