Model 1000 Precision Pressure Regulator from Rotork Fairchild

Model 1000 Precision Pressure Regulator from Rotork FairchildRotork Fairchild Model 1000 is a no bleed precision pressure regulator designed for use in systems requiring both precision control and high forward flow and exhaust capacity. The sensitive valve system of this high-quality unit makes it virtually immune to supply pressure variations.

Operating Principles
The Model 1000 Precision Pressure Regulator is designed for use in systems requiring both precision control and high forward flow and exhaust capacity. The sensitive valve motor of this high-quality unit makes it virtually immune to supply pressure variations.

The combination of high flow capacity and good sensitivity make the versatile control applications, including loading of control valve and calendar roll actuators, operation of clutch and braking devices, and winding operations.

Features

Model 1000 Precision Pressure Regulator Features

  • A great choice for versatile control applications, including loading of control valve and calendar roll actuators, operation of clutch and braking devices, and winding operations
  • Flow capacity of up to 50 SCFM, 85 m3/hr
  • Control sensitivity of less than 0.5" water column
  • Four output pressure ranges from 0.5-10 psi, 0.03-0.7 BAR, 3-70 kPa up to 2-150 psi, 0.14-10 BAR, 14-1000 kPa
  • No-bleed design minimizes consumption of air or inert gas
  • Control chamber isolates the control diaphragm which eliminates hunting and buzzing
  • Venturi-type aspirator tube compensates downstream pressure droop under flow conditions
  • Separate pilot valve eliminates unbalanced closing forces in inner valve assembly
  • Sensitive pilot valve action - large correcting effect maintains constant setpoint immune to supply pressure variations
  • Compact size - excellent for applications where space is limited

Specifications

Model 1000 Precision Pressure Regulator Specifications

SpecificationDescription
Flow Capacity50 SCFM (85 m3/hr) at 100 psig [7.0 BAR] (700 kPa) supply and 20 psig [1.5 BAR] (150 kPa) setpoint
Exhaust Capacity8 SCFM (13.6 m3/hr) for downstream pressure 5 psig [.35 BAR] (35 kPa) above set pressure
Supply Pressure250 psig [17.0 BAR] (1700 kPa) maximum
Effect of Supply Pressure Variation0.1 psig [.007 BAR] (0.7 kPa) per 100 psig [7.0 BAR] (700 kPa) change
Sensitivity0.5" (1.27 cm) Water Column
Ambient Temperature Limits-40°F to +200°F (-40°C to +93.3°C)
Hazardous LocationsAcceptable for use in Zones 1 and 2 for gas atmospheres (Groups IIA and IIB) and Zones 21 and 22 for dust atmospheres
Materials of Construction
  • Body: Zinc
  • Diaphragms: Buna N and Dacron
  • Trim: Aluminum, Brass, Neoprene, and Zinc-Plated Steel

Q & A

Q&A Section with Expand/Collapse Icons

Model 1000 Precision Pressure Regulator Q & A

+ What is the Model 1000 designed for?
The Model 1000 is a no-bleed precision pressure regulator designed for systems requiring both precision control and high forward flow and exhaust capacity.
+What does “no-bleed” mean for this Model 1000 regulator?
“No-bleed” means the regulator does not continuously vent (bleed) supply air or inert gas to maintain output pressure; instead it isolates/control the diaphragm and only vents when needed, thereby minimising air or inert gas consumption.
+What output pressure ranges are available?
The Model 1000 supports four output pressure ranges: 0.5-10 psig (0.03-0.7 BAR, 3-70 kPa), 0.5-30 psig (0.03-2.0 BAR, 3-200 kPa), 1-60 psig (0.1-4.0 BAR, 10-400 kPa) and 2-150 psig (0.14-10.0 BAR, 14-1000 kPa).
+How immune is the Model 1000 to supply pressure variation?
The design uses a sensitive pilot valve motor and compensating mechanism so that supply pressure variation has minimal effect. Specification: ~0.1 psig (~0.007 BAR / 0.7 kPa) change in setpoint per 100 psig (~7.0 BAR / 700 kPa) change in supply pressure.
+ What are typical applications for the Model 1000?
The regulator is especially suited for precision control in pneumatic systems, such as loading control-valve actuators, calendar-roll actuators, clutch and braking devices, winding operations, and inert-gas systems where no-bleed consumption is critical.

Downloads

Download Rotork Fairchild Model 1000 Precision Pressure Regulator Datasheet

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