ĐỒNG HỒ ĐO ÁP SUẤT INSTRUMATE MODEL 111DD

Description: The InstruMate 111DD sprinkler pressure gauge is designed for pressure monitoring in fire protection systems.
Its corrosion-resistant construction, threaded polycarbonate lens and clear dual-scale dial support dependable service for air, water and compatible non-corrosive media. Standard bottom connection is 1/4 NPT; 1/4 BSPT is available as an option. Ambient / process temperature: -40 °F to 150 °F (-40 °C to 65 °C).
Applications
* Fire sprinkler systems and fire-fighting equipment
* Suitable for air and water media
* Non-clogging and non-corrosive media
* Corrosion-resistant case
Special Features
* 90 mm white aluminum dial with black and red markings
* Threaded polycarbonate lens and black plastic case
* Brass socket and 1/4 NPT bottom connection as standard
* Maximum working pressure: 75% of full-scale value
* Internal pointer over-travel stop
* ASME B40.100 compliant
* CRN registered
Specification
Dial: 3.5 in (90 mm), white aluminum with black and red markings 
Case: Black plastic
Lens: Polycarbonate, threaded
Socket: Brass 
Connection: 1/4 NPT standard; 1/4 BSPT bottom option
Bourdon Tube: Phosphor bronze 
Movement: Brass
Pointer: Aluminum, black
Welding: Silver alloy
Working: Maximum 75% of full-scale value
Ambient / Process: -40 °F to 150 °F (-40 °C to 65 °C)
Accuracy: +/-3-2-3% ASME Grade B
Enclosure Rating: IP52