Description
Application
- Differential pressure measurement of two applied pressures
- For non-corrosive, non-crystallizing gaseous and liquid media
- Heating ventilation and air conditioning
Product Features
- Differential indication via subtracting movement and one indicating pointer
- Economical and rugged design
- Scale ranges from 0…15 psi (1 bar)
- Available in 4½” (115 mm) and 6″ (160 mm)
Specifications
Sizes
4½” & 6″
Accuracy
+ 2/1/2% of span
(ASME B40.1 Grade A)
Ranges
Differential pressure from 0/15 PSID(1 bard) to 0/1000 PSID (70 bard)
Static Pressure Rating
1.3 x full scale pressure
Working Range
Steady: 3/4 of full scale value
Fluctuating: 2/3 of full scale value
Short time: 1.3 x full scale value
Operating Temperature
Ambient:-4°F to 140°F (-20°C to 60°C)
Media:max. 140°F (+60°C)
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
NEMA 2 (IP 33)
Connection
Material: copper alloy
Lower mount (LM) only
2 x 1/4″ NPT
Bourdon Tube
Material: copper alloy
2 x C-shape
Movement
Copper alloy, dual-subtracting
Dial
White aluminum with black lettering. Dial marked with “L” indicating the low pressure connection and “H” indicating the high pressure connection.
Pointer
1 black adjustable aluminum pointer
Case
Black cast aluminum with built-in rear flange
Window
Instrument glass
Threaded Ring
Black aluminum
Operating Principle
High pressure needs to be applied to the right connector, low pressure to the left side. A subtracting movement will indicate the difference of two applied pressures via one pointer
Selected documents
