ĐỒNG HỒ ĐO ÁP SUẤT WIKA 231.11

Applications

* For plants and equipment where measured values must

be read from a distance

* Suitable for gaseous or liquid media that will not obstruct

the pressure system

* Referred to as “Boiler Gauge” in the industry

Product Features

* Large diameter for easy reading

* Brass or 316L SS wetted parts

* Pressure ranges up to 15,000 psi (1000 bar)

Specifications

Design: ASME B40.100 & EN 837-1

Sizes: 10” (250 mm)

Accuracy class: ± 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)

or other equivalent units of pressure or vacuum

Working pressure

Steady: full scale value

Fluctuating: 0.9 x full scale value

Short time: 1.3 x full scale value

Operating temperature

Ambient: -40°F to +140°F (-40°C to +60°C)

Medium: max. +180°F (+80°C) - Type 211.11

max. +392°F (+200°C) - Type 231.11

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 resistant (NEMA 3 / IP 54)

Pressure connection:

Material: copper alloy - Type 211.11

316L stainless steel - Type 231.11

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

1/2” NPT

Bourdon tube

Material: copper alloy - Type 211.11

< 1,000 PSI: C-type, copper alloy - silver soldered

> 1,500 PSI: helical type, 316L SS - brazed

Material: 316L stainless steel - Type 231.11

< 1,000 PSI: C-type, 316L SS

> 1,500 PSI: helical type, 316L SS

Movement: Copper alloy

Dial: White aluminum with black lettering

Pointer: Black aluminum

Case: Black-painted steel with matching friction fit bezel ring

Window: Flat instrument glass