732.51 WIKA differential industrial pressure gauge

Description

The 732.51 WIKA industrial differential pressure gauge is used for measuring the differential pressure of gaseous and liquid media.

These differential pressure gauges are made of corrosion-resistant stainless steel and have an all-metal media chamber to ensure long-term tightness (no elastomer sealing elements).

High safety against overload is achieved by the metal construction and the close-fitting design of the measuring element.

The use of high-quality stainless steel materials and the robust design are adapted to applications in the chemical and process industries. This makes the instrument suitable for liquid and gaseous media, even in aggressive environments.

An optional low-temperature version allows use at temperatures down to -70 °C.

The safety version consists of a shatterproof window, a solid partition between the measuring system and the dial, and a vent. In the event of a failure, the operator is protected at the front, as the media or components can only be extracted through the back of the housing.

Scale ranges from 0 … 16 mbar to 0 … 25 bar provide the measuring ranges required for a wide variety of applications.

 

Features 732.51

• Design:

  differential pressure gauges according to DIN 16003, lower mounting process connections, highly corrosion-resistant metal design, instrument tamper-proof, process connection position adaptable to mounting conditions

• Nominal size in mm: 100, 160
• accuracy class: 1.6, 1.0, 2.5
• scale range: 0 … 16 mbar to 0 … 25 bar

• Scale:

  • uniform scale
  • double scale
  • a specific scale (e.g. linear pressure or square root increase)
  • ladder angle approx. 180° for a scale range of 0 … 16 mbar, for all other scale ranges the scale angle shall be 270°.

• zero point setting:

  • external setting for liquid-filled instruments
  • adjustable pointer for non-fillable instruments

• pressure limit (static):

  • permanent: value of the overall scale
  • fluctuates: 0.9 x total scale value
• overload protection and maximum working pressure (static): see technical data sheet
• the effect of static pressure:
  • ± 0.3 % / 1 bar for scale range 0 … 16 to 0 … 250 mbar
  • ± 0.04 % / 1 bar for scale range 0 … 400 mbar to 0 … 25 bar

• location of the link:

  • bottom bracket (radial)
  • other connection location on request

• Process connector:

  • 2 x G ½ female thread
  • 2 x G ½ B male thread
  • 2 x 1/NPT male thread

• permissible temperature

  • surroundings:
    • -20 °C… +60 °C for instruments without liquid filling
  • medium:
    • -20 °C… +100 °C
    • -20 °C… +120 °C
    • -20 °C… +150 °C
• Temperature effect: when the temperature of the measuring system deviates from the reference temperature (+20 °C): max. ± 0.5 % / 10 K of the total scale value

• the transfer fluid in the measuring chamber:

  • silicone oil
  • glycerol
  • other portable liquids on request

• wetted materials:

  • media chambers with process connection: stainless steel 1.4571
  • pressure element:
    • ≤ 0.25 bar: stainless steel 1.4571
    • > 0.25 bar: NiCr alloy (Inconel)
  • meh: Stainless steel 1.4571
  • venting media chambers:
    • stainless steel 1.4571
    • for scale ranges ≤ 0.25 bar, venting of the media chambers is always provided.
    • for a scale range of> 0.25 bar, you can order venting of the media chambers.

• non-moistened materials:

  • Housing: stainless steel, safety level “S1” according to EN 837: With blowing device
  • movement, stainless steel bayonet ring
  • aluminium dial, white, black letters
  • the instrument pointer:
    • model 732.51: adjustable pointer, aluminium, black
  • Window: Laminated safety glass
  • ingress protection according to IEC/EN 60529
    • IP54
    • IP65 for liquid-filled instruments
  • assisted installation:
    • rigid measuring lines
    • mounting holes on the back of the instrument

 

Accessories

The new WIKA pressure measurement system is an EMICO emission meter that ensures the safety of people and the environment in critical processes. The system consists of pressure gauges of models 2xx.30 in the safety version or S-3 in accordance with EN 837-1 (S3) and a valve to prevent fugitive emissions:

• IVM stop and vent valve with WIKA flange
• IV10 needle valve for WIKA pressure gauges
• IV11 multiport needle valve for WIKA pressure gauges
• IV20 shut-off and vent valve for WIKA pressure gauges
• IV21 shut-off and vent valve for WIKA pressure gauges

The measuring instrument and the valve are connected by a lightweight swivel adapter with a special sealing packing. The system is leak tested in accordance with TA Luft (VDI 2440) for fugitive emissions. The EMICO system measures pressures from 0 to 420 bar or 6000 psi. In the event of a failure due to high overpressure, the S-3 safety version protects the user from injury.

The compact measuring system can be started up immediately after delivery. The free rotating swivel adapter allows 360° positioning of the display and easy disassembly of the measuring instrument (in case calibration is required). In accordance with ISO 15848-1 and TA-Luft, S-3 pressure gauges can be combined with top valves in a fugitive design to form EMICO gauges.

To find out more about the app itself, click here.

 

Areas of use, applications

• filter control
• pump monitoring and control
• level measurement on closed containers
• for gaseous and liquid aggressive media that are not highly viscous or crystallising, even in aggressive environments

 

To view additional options of the 732.51 and more technical features, we recommend viewing the attached pdfs. documents under the Documentation section.