Wika Wika Test Gauge, Copper Alloy
( Model: 312.20 )

Zebco proudly serves as a supplier and authorised dealer of the WIKA 312.20 Test Gauge across India, delivering durable, copper alloy gauges trusted for industrial testing and measurement.

Special Features

Shop Datasheet

For gaseous and liquid media that are not highly viscous or crystallising and will not attack copper alloy parts
High-accuracy pressure measurement
Testing of industrial type pressure gauges
Precision measurement in laboratories

Application

Knife edge pointer for optimal accuracy of reading

Precise movement with wear parts of Argentan

Per EN 837-1 and ASME B40.100

Accuracy of up to ±0.25 % of measuring span (grade 3A)Scale ranges from 0 ... 0.6 bar to 0 ... 600 bar [0 ... 10 psi to 0 ... 10,000 psi]

Descriptions of Wika Test Gauge, Copper Alloy ( Model: 312.20 )

The model 312.20 mechanical test gauge has been specifically designed for the measurement of pressures with high accuracy. With its high accuracy, the Bourdon tube pressure gauge is suitable for testing industrial type pressure gauges or for precision measurement in laboratories.

For the respective measuring requirement, a scale range between 0 ... 0.6 bar and 0 ... 600 bar [0 ... 10 psi and 0 ... 10,000 psi] can be selected. 

The model 312.20 is constructed with a case from stainless steel and wetted parts from copper alloy. The instrument meets the requirements of the international industry standard EN 837-1 for Bourdon tube pressure gauges. 

The optimal readability of the instrument, with a nominal size of 160 mm [6], is achieved via a knife edge pointer and a dial with fine divisions. In addition, a mirror band scale can be chosen to avoid the parallax error.

On request, a calibration certificate will be provided for this instrument. Safe storage and transport is ensured by a transport case (accessory).

Specifications

Standard	EN 837-1 ASME B40.100 For information on the “Selection, installation, handling and operation of pressure gauges, see technical information IN 00.05
Nominal size (NS)	Ø 160 mm [6]
Connection location	Lower mount Lower back mount
Window	Instrument glass
Case	-
Design	Safety level “S0” per EN 837 Safety level “S1” per EN 837: With blow-out device in case back Panel mounting flange, steel, black, screwed Slip-on bezel, steel, black, pressed on Slip-on bezel, stainless steel, pressed on Slip-on bezel, polished stainless steel, pressed on Triangular profile ring with mounting bracket, steel, black 1) Triangular profile ring with mounting bracket, polished stainless steel 1)
Material	Stainless steel
Ring	Bayonet bezel, stainless steel Triangular profile ring, polished stainless steel, with clamp
Mounting	Without Surface mounting flange, stainless steel Panel mounting flange, stainless steel Panel mounting flange, polished stainless steel Triangular profile ring with mounting bracket, polished stainless steel 1)
Case filling	Without With case filling (model 333.50, see data sheet PM 03.06)
Movement	Copper alloy, wear parts Argentan