ĐỒNG HỒ ĐO ÁP SUẤT WIKA 232.50

Design: ASME B40.100 & EN 837-1

Sizes: 2 1/2”, 4” & 6” (63, 100 and 160 mm)

Accuracy class

      2 1/2”: ± 2/1/2% of span (ASME B40.100 Grade A)

      4” & 6”: ± 1.0% of span (ASME B40.100 Grade 1A)

Ranges

      Vacuum / Compound to 200 psi (16 bar)

      Pressure from 0/15 psi (1 bar) to 0/15,000 psi (1,000 bar) - 2½”, 4”

      Pressure from 0/10 (0.6 bar) to 0/20,000 psi (1,600 bar) - 6” or other equivalent units of pressure or vacuum

Working pressure

2 1/2”:

      Steady: ¾ scale value

      Fluctuating: 2/3 full-scale value

      Short time: full-scale value

4” & 6”:

      Steady: full-scale value

      Fluctuating: 0.9x full-scale value

      Short time: 1.3x full-scale value

Operating temperature

Ambient:

      -40°F to +140°F (-40°C to +60°C) - dry

      -4°F to +140°F (-20°C to +60°C) - glycerine-flled

      -40°F to +140°F (-40°C to +60°C) - silicone-flled

Medium:

      +392°F (+200°C) maximum - dry

      +212°F (+100°C) maximum - liquid-flled

Temperature: 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 / IP65)

Pressure connection

      Material: 316L stainless steel

      Lower mount (LM) or lower back mount (LBM)

      Center back mount (CBM) for 2½” size ¼” NPT or ½” NPT (other connections available)

Bourdon tube

Material:

      316 stainless steel

      > 1,000 psi (100 bar): C-shape

      < 1,500 psi (100 bar): helical

Movement: Stainless steel

Dial: White aluminum with black lettering; 2½” with stop pin

Pointer: Black aluminum, adjustable

Bezel ring: Stainless steel, bayonet-type

Window: Polycarbonate (2½”) and Safety Glass (4” & 6”) with Buna-N gasket

Optional extras

* Other pressure connections

* Restrictors for applications with high dynamic pressure pulsations

* Monel wetted parts (Type 26X.50), not available in 6” LBM

* Front flange, SS (CBM and LBM only)

* Rear flange, SS

* 316 SS case material

* U-clamp mounting, SS (not available on 4½”)

* Silicone or Halocarbon case flling

* Non-adjustable pointer

* Red drag pointer or mark pointer

* Safety glass window

* Custom dial layout

* Other pressure scales available: bar, kPa, MPa, kg/cm² and dual scales

* Integral alarm contacts or transmitters