Description
Differential pressure gauge WIKA
These differential pressure gauges are made of highly corrosion-resistant stainless steel. 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 wetted parts for these instruments are available also in special materials such as Monel or Hastelloy.
The scale ranges of 0 … 60 mbar to 0 … 40 bar are available to meet the requirements of a wide variety of applications.
Design
DIN 16003
Highest overload safety either side, pressure ratings PN 40, 100, 250 or 400, hydraulic cushioning protection against rapid pressure changes
Nominal size in mm
100, 160
Accuracy class
- Model 732.14: 1.6
- Model 762.14: 2.5
Scale ranges
- Gauges with PN 40 and 100:
0 … 60 mbar to 0 … 160 mbar (measuring cell □ 140)
0 … 0.25 bar to 0 … 40 bar (measuring cell □ 82)
- Gauges with PN 250:
0 … 60 mbar to 0 … 250 mbar (measuring cell □ 140)
0 … 0.4 bar to 0 … 40 bar (measuring cell □ 82)
- Gauges with PN 400:
0 … 0.4 bar to 0 … 40 bar (measuring cell □ 86)
Pressure limitation
Steady: Full scale value
Fluctuating: 0.9 x full scale value
Permissible temperature
Ambient: -20 … +60 °C
Medium: +100 °C maximum
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 IEC/EN 60529 (with liquid filling IP65)
Measuring flanges (wetted)
- Model 732.14: Stainless steel 316L
- Model 762.14: Monel 2.4360
Flange connecting screws
- PN 40 / 100: Stainless steel
- PN 250 / 400: Steel, corrosion-protected
Process connections
- 2 x G ½ female, lower mount (LM)
Pressure elements (wetted)
- Type 732.14: Stainless steel 316L
for scale ranges ≤ 0,25 bar
Stainless steel 316L / Inconel
for scale ranges > 0,25 bar
- Type 762.14: Monel 2.4375
Hastelloy C276 for version per
NACE MR 0175/ISO 15156-T3
Measuring cell
Chrome steel
Movement
Stainless steel
Dial
Aluminium, white, black lettering
Pointer
Adjustable pointer, aluminium, black
Zero adjustment
By means of adjustable pointer (adjustment appliance with gauges with liquid filling and/or
switch contact)
Case / Bayonet ring
Stainless steel
Window
Laminated safety glass
Measuring cell filling
Silicone oil
Exception: Glycerine
Mounting by means of:
- Rigid measuring lines
- Drilled mounting holes at the back of the measuring cell
- Panel mounting flange (option)
- Mounting bracket for wall or pipe mounting (option)
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