Bourdon tube pressure gauge Stainless steel case, NS 100 [4″] and 160 [6″]

Durable and robust design
Cost-effective and reliable
DNV approval for shipbuilding
Scale ranges from 0 … 0.6 to 0 … 1,000 bar [0 … 10 to 0 … 15,000 psi] and vacuum and +/- scale ranges

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 mechanical model 212.20 Bourdon tube pressure gauge is constructed with a case from stainless steel. The wetted parts material is copper alloy or stainless steel, depending on the scale range.

WIKA manufactures and qualifies the pressure gauge in accordance with the standards EN 837-1 and ASME B40.100. As a safety function, this instrument has a blow-out device. In the event of a failure, overpressure can escape there.

Applications for this instrument can be found in the machine building, plant construction and building services industries. The model 212.20 can also be used in refrigeration applications.

The cases are available in nominal sizes of 100 [4″] and 160 [6″] and fulfil IP54 ingress protection.

The modular design enables a multitude of combinations of process connections, nominal sizes and scale ranges. This high variance enables universal use of the instrument in the industrial sector.

For mounting in control panels, the pressure gauges can be fitted with a mounting flange or with a triangular profile ring and mounting bracket.

Specifications

Connection location	■ Lower mount (radial) ■ Lower back mount
Nominal size	■Ø 100 mm [4"] ■Ø 160 mm [6"]
Scale ranges	0 … 0.6 to 0 … 1,000 bar [0 ... 10 to 0 ... 15,000 psi] and vacuum and compound scale ranges
Accuracy	■ 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 ¼ B, male thread ■G ⅜ B, male thread ■G ½ B, male thread ■M20 x 1.5, male thread ISO 7: ■R ¼, male thread ■R ⅜, male thread ■R ½, male thread ANSI/B1.20.1: ■¼ NPT, male thread ■⅜ NPT, male thread ■½ NPT, male thread Restrictor: ■Without ■∅ 0.6 mm [0.024"], brass ■∅ 0.3 mm [0.012"], brass Material (wetted): ■Process connection: Copper alloy Bourdon tube: ■< 100 bar [1,500 psi]: Copper alloy ■≥ 100 bar [1,500 psi]: Stainless steel 1.4404 (316L)
Case	Design: With blow-out device Material: Stainless steel, natural finish
Window	■ Instrument glass ■ Laminated safety glass ■ 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: ■ Pointer, aluminium, black ■ Knife edge pointer, aluminium, black ■ Adjustable pointer, aluminium, black Mark pointer/drag pointer: ■Without ■Red mark pointer on dial, fixed ■Red mark pointer on window, adjustable ■Red drag pointer on window, adjustable
Movement	■Copper alloy ■Copper alloy, silicone-damped
Ambient temperature	-40 ... +60 °C [-40 ... +140 °F]
Medium temperature	■-20 ... +80 °C [-4 ... +176 °F] ■-20 ... +150 °C [-4 ... +302 °F]
Ingress protection per IEC/EN 60529	IP54