Overview
Pneumatic relay produces a modulating pressure output, and controls pneumatic valve or damper actuators in sequence from a single thermostat. Replacements are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell devices.
Features
Adjustable pilot start point pressures.Two pilot pressure spans available.Four sharp-barb air connections.Molded plastic construction with neoprene.Mounting clip provided.
- Application : Pneumatic, Four Port Ratio Relay
- Airflow Usage : 0.002 scfm (1.0 mL/s) maximum
- Dimensions (in.) : 2 in. diameter x 2 5/8 in. deep
- Dimensions (mm) : 52 mm dia. x 67 mm deep
- Maximum Safe Operating Pressure (psi) : 30 psi, maximum
- Maximum Safe Operating Pressure (kPa) : 205 kPa, maximum
- Temperature Range (F) : 0 F to 140 F
- Temperature Range (C) : -18 C to +60 C
- Mounting : Wall or In-line or panel
- Operating Humidity Range (% RH) : 5 to 95% RH
- Pressure Range (psi) : Output Span--3 to 13 psi, 3 psi pilot input span
- Pressure Range (kPa) : Output Span--21 to 90 kPa, 21 kPa pilot input span
- Action : Direct Acting
- Pilot Start Pressure (psi) : Adjustable 0 to 10 psi
- Pilot Start Pressure (kPa) : Adjustable 0 to 69 kPa
