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Diaphragm pressure gauge for the process industry Up to 10-fold overload safety, max. 40 bar

Diaphragm pressure gauge for the process industry Up to 10-fold overload safety, max. 40 bar

  • Case and wetted parts from stainless steel
  • Wide choice of special materials
  • Process connection thread or open flange
  • Scale ranges from 0 … 16 mbar
  • QR code on dial links to instrument-specific information
  • Responsive after-sales service / Customizable /
  • High quality / One-year warranty
  • The image is for reference; the actual product willbe based on your custom specifications.
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Description

Diaphragm pressure gauges are preferably used for low pressure ranges. Through the large working surface of the circular, corrugated diaphragm element, small pressure ranges can be measured reliably.

The model 432.50 diaphragm pressure gauge is manufactured in accordance with EN 837-3. The high-quality design is particularly suitable for applications in the chemical and petrochemical industry, oil and gas industry and power engineering.

The case and wetted parts from stainless steel fulfil high requirements for resistance against aggressive media. For especially high resistance requirements, the pressure chamber of this diaphragm pressure gauge can be designed with a wide variety of special materials such as PTFE, tantalum or Hastelloy.

The open connecting flange has the advantage over a threaded connection that the pressure port cannot become blocked. With an additional flushing bore on the open connecting flange, the pressure chamber can be easily cleaned.

Measuring systems with diaphragm elements, on the grounds of their design, offer good protection from overload, since the diaphragm can support itself against the upper flange. As standard, this diaphragm pressure gauge already features an overload safety of 5 times the full scale value.

The QR code on the dial allows instrument-specific information such as the serial number, the order number, certificates and other product data to be retrieved from the internet easily and in the long term.

Specifications

Nominal size ■Ø 100 mm [4"]
■Ø 160 mm [6"]
Scale ranges 0 … 16 mbar
Accuracy ■ 1.6
■ 2.5
Process connection Standard:
■ EN 837
■ ANSI / ASME B1.20.1
■ ASME B16.5
■ EN 1092-1, form B

Size:
EN 837:
■G ½ B
■M20 x 1.5
ANSI / ASME B1.20.1:
■½ NPT
ASME B16.5:
■Open connecting flange 1" class 150, RF
■Open connecting flange 2" class 150, RF
■Open connecting flange 1" class 300, RF
EN 1092-1, form B:
■Open connecting flange DN 25 PN 40
■Open connecting flange DN 50 PN 40

Materials (wetted):
Diaphragm element
Span ≤ 0.25 bar: Stainless steel 316L
Span ≥ 0.4 bar: NiCr alloy (Inconel)

Process connection with lower measuring flange:
Stainless steel 316L

Coating / Lining:
■Without
■ PTFE (model 45x.50 or 45x.30)
■Hastelloy
■Monel
■ Tantalum
■Gold (only for diaphragm element)
Other materials on request

Sealing :
■ FPM/FKM
■ PTFE
Case Design, models 432.50 and 433.50: Safety level “S1” per EN 837-1: With blow-out device
Design, models 432.30 and 433.30: Safety level “S3” per EN 837-1: With solid baffle wall and blow-out back

Material:
■ Stainless steel 1.4301 (304)
■ Stainless steel 1.4571 (316 Ti)
Window ■ Laminated safety glass
■ Polycarbonate
Dial Scale layout
■ Single scale
■Dual scale

Scale colour
■Single scale: Black
■Dual scale: Black/red

Material:
■Aluminium

Customer-specific version:
Other scales, e.g. with red mark, circular arcs or circular sectors, on request → Alternatively, adhesive label set for red and green circular arcs, see data sheet AC 08.03
Pointer Aluminium, black
Movement Stainless steel
Filling liquid ■Without
■Glycerine-water mixture
■ Silicone oil M50

Instruments with case filling with compensating valve to vent case.
Ambient temperature ■-20 ... +60 °C [-4 ... +140 °F]
■-40 ... +60 °C [-40 ... +140 °F]
Medium temperature ■ +100 °C [+212 °F] maximum
■ +200 °C [+392 °F] maximum
IP rating ■ IP54
■ IP65
■ IP66 (ingress protection of the case)

Downloads

English

SJ-Gauge-wika-432.50-diaphragm-pressure-gauge-datasheet-en.pdf

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