Products / Parker / Refrigeration and Air Conditioning / Fixed Flow Regulator- FFR2
The FFR-2 Fixed Flow Regulator provides an economical means of maintaining constant flow by the selection of a predefined orifice size.
This FFR-2 is a precision built, heavy duty,
Fixed Flow Regulator is used as a liquid flow control device for
Liquid Recirculation Systems. The Regulator establishes and
maintains a constant flow rate determined only by the selected
orifice number and independent of initial pressure drop or changes
in the inlet or outlet pressure. By proper orifice selection an
appropriate Fixed Flow Regulator can be chosen to maintain constant
liquid flow at any one of nine different levels. To select the
proper orifice multiply the evaporator load by the recirculation
rate desired and choose the orifice with the rating closest to the
calculated rating. Choosing an orifice with a lower number will
decrease the recirculation rate, one with a higher number will
increase it. Two or more FFR-2 Regulators may be installed in
parallel to obtain capacities greater than available from one.
Solenoid valves, hand valves or strainers placed upstream of the
FFR-2 Regulators must be properly sized to give a low pressure drop
that will not cause flashing. The FFR regulators must have 100%
subcooled liquid refrigerant at the inlet with no flash gas present
in order to give proper liquid flow control.
Markets:
• Industrial Refrigeration
• Commercial Refrigeration
Features and Benefits:
• Eliminates System Balancing
• Overcomes Flow Fluctuations
• Compact
• Rugged
• Simple: One Moving Part
• Nine Capacities
• Cleanable in Line
• Flanged Ends
• U.S. Pat. No. 3,741,242
• Design Pressure (MRP): 27.6 bar (400 psig)
Application:
• For Liquid Recirculation Systems (liquid overfeed)