The Ratio Relay by NEUCO INC is designed for accurate control in various industrial applications. This relay provides reliable performance, ensuring precise operation of connected devices. Its robust construction guarantees durability and long-lasting use in demanding environments. The Ratio Relay is compatible with a range of systems, making it versatile for different applications. With its adherence to industry standards, this relay is an excellent choice for professionals seeking dependable control solutions.
Commercial Building Controls : Pneumatic Products : Pneumatic Relays : RP971 : RP971A1007/U
Wall, In-Line or panel mounted Pneumatic Four Port Ratio Relay
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.
Product Specifications
- 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
- Includes
- 14003030-002 Mounting Clip and scaleplate with psi markings
- 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
- Air connections
- Barb fittings, Port 1: 1/4 in. (6 mm) O.D. plastic tubing; Other Ports: 5/32 in. (4 mm) O.D. plastic tubing
- Capacity
- 0.039 scfm at 1 psi differential (18 mL/s at 5 kPa differential)
- Operation
- Produces modulating pressure output proportional to pilot pressure input changes
- Pilot Start Pressure (psi)
- Adjustable 0 to 10 psi
- Pilot Start Pressure (kPa)
- Adjustable 0 to 69 kPa
