4311949 | 212.53.2 | 160 psi 2nd scale bar 1/4 NPT lower mount | Bourdon Tube Pressure Gauge, Copper Alloy | Stainless steel case, liquid filling | Wika

212.53.2 | 160 psi 2nd scale bar 1/4 NPT lower mount | Bourdon Tube Pressure Gauge, Copper Alloy | Stainless steel case, liquid filling

Applications

• Intended for adverse service conditions where pulsating or vibration exists (with liquid filling)
• Hydraulics & compressors
• Suitable for gaseous or liquid media that will not obstruct the pressure system

Product Features

• Vibration and shock resistant (with liquid filling)
• Stainless steel case
• Pressure ranges up to 15,000 psi (1000 bar)

Specifications

Design
ASME B40.100 & EN 837-1

Sizes
2”, 2½” & 4” (50, 63 & 100 mm)

Accuracy class
2” & 2½”: ± 2/1/2% of span (ASME B40.100 Grade A)
4”: ± 1% of span (ASME B40.100 Grade 1A)

Ranges
Vacuum / Compound to 200 psi (16 bar)
Pressure from 15 psi (1 bar) to 15,000 psi (1000 bar)
Pressure from 15 psi (1 bar) to 10,000 psi (690 bar) - 2” size or other equivalent units of pressure or vacuum

Working pressure

2 & 2½”:

• Steady: ¾ full-scale value
• Fluctuating: 2/3 full-scale value
• Short time: full-scale value

4”:

• Steady: full-scale value
• Fluctuating: 0.9 x full-scale value
• Short time: 1.3 x full-scale value

Operating temperature

Ambient:

• -4°F to +140°F (-20°C to +60°C) - dry
• -4°F to +140°F (-20°C to +60°C) - glycerine filled
• -40°F to +140°F (-40°C to +60°C) - silicone filled

Medium:

• +140°F (+60°C) maximum

Temperature error
Additional error when temperature changes from reference temperature of 68°F (20°C) ±0.4% of span for every 18°F
(10°K) rising or falling.

Weather protection
Weather tight (NEMA 4X / IP 65)

Pressure connection
Material: copper alloy
Lower mount (LM) or center back mount (CBM) - 2” & 2½”
Lower mount (LM) or lower back mount (LBM) - 4”
⅛” NPT, ¼” NPT or ½” NPT limited to wrench flat area ABS (2”
& 2½”) and white aluminum (4”)

Bourdon tube
2” (50 mm) < 870 psi (60 bar): C-shape copper alloy
2” (50 mm) > 870 psi (60 bar): Helical copper alloy
2½” (63 mm) < 870 psi (60 bar): C-shape copper alloy
2½” (63 mm) > 870 psi (60 bar): Helical copper alloy
2½” (63 mm) > 6000 psi (400 bar): Helical stainless steel
4” (100 mm) < 1000 psi (70 bar): C-shape copper alloy
4” (100 mm) > 1000 psi (70 bar): Helical stainless steel

Movement
Copper alloy

Dial
White ABS (2” & 2½”) and white aluminum (4”)

Pointer
Black aluminum

Case
304 stainless steel with vent plug and stainless steel crimp ring. Suitable for liquid filling.

Case connection sealed with O-ring, (O-ring material dependent on the case fill):

• 2½”: EPDM O-ring for Glycerine case fill; FKM O-ring for Silicone fill
• 4”: EPDM O-ring for Glycerine or Silicone case fill; FKM O-ring for Halocarbon or Fluorolube fill

Window
Polycarbonate with Buna-N gasket

Case fill
Type 213.53 -

Glycerin
Glycerin/Water

Optional extras

• Brass restrictor
• Stainless steel front or rear flange - 2½” & 4”
• Zinc-plated steel or SS U-clamp bracket (field installable)
• External zero adjustment (2½” only)
• Red drag pointer or mark pointer
• Silicone or Halocarbon oil case filling
• Special connections limited to wrench flat area
• Custom dial layout
• Other pressure scales available bar, kPa, MPa, kg/cm² and dual scales