Rotork Fairchild Model 80 is a compact two stage precision pressure regulator designed for applications that require high performance, low droop and accurate process control in a smaller footprint, where space may be limited or you wish to reduce the overall size of your panel or equipment.
Operating Principles
The Model 80 is a precision two-stage device that incorporates a force balance design with pilot control. This compact, high quality unit combines the flow capacity of a process regulator with the precision of an instrument regulator.
Features
Model 80 Multi-Stage Pressure Regulator Features
- This compact, high quality pneumatic regulator combines the flow capacity of a process regulator with the precision of an instrument regulator
- Three output pressure ranges from 0-20 psi, 0-1.5 BAR, 0-150 kPa up to 1-100 psi, 0.05-7 BAR, 7-700 kPa
- Sensitivity of less than 0.1" water column - well suited for high accuracy applications
- Compact size - excellent for installations where space is limited
- Force balance and two stage pilot control minimizes any droop from downstream flow
- Excellent frequency response eliminates any output pressure excursions
- Sapphire orifice provides precise control of pilot control air flow
- Low air consumption - efficient operation with no losses of air or gas media
- Available in 1/8", 1/4" and 3/8" NPT port sizes - versatility allows you to select the configuration you need
Specifications
Model 80 Multi-Stage Pressure Regulator Specifications
| Specification | Details |
|---|---|
| Flow Capacity | 14 SCFM (23.8 m³/hr) @ 100 psig [7.0 BAR, 700 kPa] supply; 20 psig [1.5 BAR, 150 kPa] setpoint |
| Exhaust Capacity | 2.5 SCFM (4.25 m³/hr) at 5 psig [0.35 BAR, 35 kPa] above 20 psig setpoint |
| Pressure Change under Flow | < 0.1 psig [0.007 BAR, 0.7 kPa] from dead end service to 10 SCFM [17 m³/hr]; set pressure 10 psig [0.7 BAR, 70 kPa]; supply pressure 100 psig [7.0 BAR, 700 kPa] |
| Air Consumption | < 0.1 SCFM [0.17 m³/hr] |
| Sensitivity | < 0.1" [0.254 cm] Water Column |
| Maximum Supply Pressure | 150 psig [10 BAR, 1000 kPa] for 20 psig [1.5 BAR, 150 kPa] range 250 psig [17 BAR, 1700 kPa] for 60–100 psig [4–7 BAR, 400–700 kPa] ranges |
| Effect of Supply Pressure Variation | < 0.2 psig [0.014 BAR, 1.4 kPa] for 100 psig [7.0 BAR, 700 kPa] change in supply pressure |
| Ambient Temperature Limits | -40°F to +200°F (-40°C to +93.3°C) |
| Materials of Construction |
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Q & A
Model 80 Multi-Stage Pressure Regulator Q & A
+ What is the Model 80 regulator used for?
The Model 80 is a compact two‑stage precision pressure regulator designed for applications requiring high performance, low droop and accurate process control where space is limited.
+What output pressure ranges are available?
It offers three selectable output ranges: 0–20 psig (0‑1.5 BAR / 0‑150 kPa), 1–60 psig (0.1‑4 BAR / 10‑400 kPa), and 1–100 psig (0.07‑7 BAR / 7‑700 kPa).
+What is the maximum supply pressure?
The Model 80 can handle up to 150 psig (10.0 BAR / 1000 kPa) or in some ranges up to 250 psig (17.0 BAR / 1700 kPa) supply pressure.
+What is the flow capacity of the regulator?
The regulator has a flow capacity of approximately 14 SCFM (23.8 m³/hr) @ 100 psig (7.0 BAR / 700 kPa) supply and 20 psig (1.5 BAR / 150 kPa) set‑point.
+ How sensitive is the Model 80?
It features a sensitivity of less than 0.1″ water column, making it suitable for high‑accuracy applications.
Downloads
Download Rotork Fairchild Model 80D Multi-Stage Pressure Regulator Datasheet
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