Bourdon tube pressure gauge, stainless steel for the process industry, standard version

  • Excellent load cycle stability and shock resistance
  • With case filling (model 233.50) for applications with high dynamic pressure loads and vibrations
  • Completely from stainless steel
  • Scale ranges from 0 … 0.6 to 0 … 1,600 bar or 0 … 10 to 0 … 20,000 psi
  • 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.

Description

The WIKA Model 232.50 is a stainless steel Bourdon tube pressure gauge designed for process industry applications. Featuring a robust all-stainless-steel construction, it is suitable for measuring gaseous and liquid media, even in aggressive environments. Manufactured in accordance with EN 837-1 and ASME B40.100 standards, it offers a wide measuring range up to 1,600 bar and includes a blow-out safety device for enhanced operational safety. Typical applications include chemical and petrochemical industries, oil and gas, water and wastewater treatment, and general plant engineering.

Specifications

Connection location ■Lower mount (radial)
■Lower back mount
■Centre back mount (only for NS 63 [2 ½"])
Nominal size ■Ø 63 mm [2 ½"]
■Ø 100 mm [4"]
■Ø 160 mm [6"]
Scale ranges 0 ... 0.6 kg/cm² to 1600kg/cm², or other equivalent units of pressure, vacuum or compound
Accuracy NS 63 [2 ½"]:
■EN 837-1: Class 1.6
■ASME B40.100: ±2 % │ ±1 % │ ±2 % of measuring span (grade A)

NS 100 [4"], 160 [6"]:
■EN 837-1: Class 1.0
■ASME B40.100: ±1 % of measuring span (grade 1A)
Process connection Standard:
■EN 837-1
■ISO 7
■ANSI/B1.20.1

Size:
EN 837-1:
■G ⅛ B, male thread
■G ¼ B, male thread
■G ½ B, male thread
■M12 x 1.5, male thread
■M20 x 1.5, male thread
ISO 7:
■R ¼, male thread
■R ½, male thread
ANSI/B1.20.1:
■¼ NPT, male thread
■½ NPT, male thread

Restrictor:
■Without
■∅ 0.6 mm [0.024"], stainless steel
■∅ 0.3 mm [0.012"], stainless steel

Material (wetted):
■Process connection: Stainless steel 1.4404 (316L)
■Bourdon tube: Stainless steel 1.4404 (316L)
Case Design:
Safety level “S1” per EN 837-1 With blow-out device at case circumference, 12 o'clock (NS 63 [2 ½"]) and on the back of the case (NS 100 [4"] and 160 [6"]) Scale ranges ≤ 0 ... 16 bar [≤ 0 ... 300 psi] with compensating valve to vent and reseal case

Material:
■Stainless steel 1.4301 (304)
■Stainless steel 1.4571 (316Ti)
Window Laminated safety glass (NS 63 [2 ½"]: Polycarbonate)
Dial Scale colour: Black

Material: Aluminium

Special scale:
■Without
■With temperature scale for refrigerant, e.g. for NH3: R 717
Other scales or customer-specific dials, e.g. with red mark, circular arcs or circular sectors, on request
Pointer Instrument pointer: Aluminium, black

Mark pointer/drag pointer:
■Without
■Red mark pointer on dial, fixed
■Red mark pointer on window, adjustable
■Mark pointer on bayonet ring, adjustable
■Red drag pointer on window, adjustable
Movement ■Stainless steel
■Stainless steel 1.4404 (316L)
■everlast® version
Filling liquid ■Without
■Glycerine
■Glycerine-water mixture for NS 100 [4"] and 160 [6"] with scale range ≤ 0 ... 2.5 bar [≤ 0 ... 40 psi] or for NS 63 [2 ½"] with scale range ≤ 0 ... 4 bar [≤ 0 ... 60 psi]
■Silicone oil
Ambient temperature ■Unfilled instruments or with silicone oil filling: -40 ... +60 °C [-40 ... +140 °F]
■Instruments with glycerine filling: -20 ... +60 °C [-4 ... +140 °F]
Medium temperature ■Unfilled instruments: -40 ... +200 °C [-40 ... +392 °F]
■Instruments with glycerine filling: -20 ... +100 °C [-4 ... +212 °F]
■Instruments with silicone oil filling: -40 ... +100 °C [-40 ... +212 °F]
Ingress protection per IEC/EN 60529 ■IP65
■IP66 (only selectable for scale ranges ≥ 0 ... 20 bar [0 ... 400 psi])
Accessories (options) 4", 6": drag pointer
4": adjustable set pointer