Refrigerant Pressure Regulators

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Automatic Flow Regulator- AFR-3

The AFR-3 Automatic Flow Regulator provides for external adjustment of the flow rate.

Parker’s AFR-3 is a liquid flow control device for overfeed or recirculated systems. Unlike pressure regulators or expansion valves the AFR directly controls the flow of refrigerant and maintains a constant flow rate of liquid to the evaporator. This precise and direct control provides increased operational efficiency. The AFR also serves as a check valve to prevent back flow into the liquid line from the evaporator during pressure reversals such as occur during hot gas defrost.

Markets:

• Industrial Refrigeration

• Commercial Refrigeration

Features and Benefits:

• External Adjustment

• Easy Setting Scale

• Eliminates System Balancing

• Integral Check Valve

• “Frost Free” Neck

• Design Pressure (MRP): 27.6 bar (400 psig)

Application:

• Used as a Liquid Control Device for Ammonia Overfeed Systems

MAXIMUM RATED PRESSURE (BAR)

27.6bar

MAXIMUM RATED PRESSURE (PSIG)

400psig

FLANGE TYPE

FPT, Socket Weld, No Flange, Weld Neck

CONNECTION SIZE

1/2″, 3/4″, None

STRAINER TYPE

With Strainer or Without Strainer

VALVE MATERIAL

Standard Valve Material

PLATING

No Plating Standard CAM, Mounting Kit~ Standard CAM

Automatic Flow Regulator- AFR-32019-06-10T00:38:53+00:00

Commercial Pressure Regulator – Flo-Con A2

The A2B products are compact pressure regulators that maintain upstream or downstream despite fluctuations in load.

Parker’s A2 series of compact pressure regulators help reduce system cost and complexity by utilizing a compact housing and direct operation. These valves are ideal for applications where a larger pilot operating valve is too costly or too large. The regulators can be used with ammonia and certain other refrigerants, oil, and other approved fluids. The regulators are ideal for use in systems where a small inlet or outlet pressure regulator is needed and can also be used as a remote pilot for larger control valves that are located in difficult to service areas.

Market:

• Industrial Refrigeration

• Commercial Refrigeration

Features and Benefits:

• Compact Direct Diaphragm Operated

• Design Pressure (MRP): 27.6 bar (400 PSIG)

• Furnished with Flanged Connections: FPT, SW, WN or ODS

• Available with Close Coupled Strainer

• Stainless Steel Diaphragm

• Easily removed for service

Application:

• May be used as a remote pilot for larger valves.

• Modulates flow of refrigerant gas or liquid to maintain constant upstream (or inlet) pressure as set-for, despite load fluctuations. The fluid temperature range for the A2 Series of Regulators is -45°C to 105°C (-50°F to 220°F).

MAXIMUM RATED PRESSURE (BAR)

27.6bar or 28bar

MAXIMUM RATED PRESSURE (PSIG)

400psig or 406psig

MINIMUM WORKING TEMPERATURE (C)

-45°C

MINIMUM WORKING TEMPERATURE (F)

-50°F

MAXIMUM WORKING TEMPERATURE (C)

105°C

MAXIMUM WORKING TEMPERATURE (F)

220°F

FLOW COEFFICIENT (KV)

0.09 Kv to 1.28 Kv

FLOW COEFFICIENT (CV)

0.1 Cv to 1.14 Cv

PRESSURE REGULATOR TYPE

Outlet- Internally Equalized, Outlet- Externally Equalized, N/A, Inlet- No Variation, Inlet- With Handwheel, Inlet- Re-Seating Relief, Inlet- Electrically Compensated, Inlet- Pneumatically Compensated (1:1 Ratio), Inlet- Pneumatically Compensated (3:1 Rat

PRESSURE RANGE (BAR)

500mm Hg to 8.3bar, 5.2 to 19.3bar, 0.35 to 10bar

PRESSURE RANGE (PSIG)

20 Hg to 120psig, 75 to 280psig, 5 to 150psig

PRESSURE SET POINT (BAR)

1.0 to 19.3bar

PRESSURE SET POINT (PSIG)

15 to 280psig

FLANGE TYPE

FPT, Socket Weld, No Flange, ODS, Weld Neck

CONNECTION SIZE

1/4″ to 3/4″ or None

MOTOR TYPE

None, Not Available, Motor Assembly~ 120 V 50/60 Hz 4-20 mA Standard CAM, Mounting Kit~ Standard CAM

STRAINER TYPE

Without Strainer or With Strainer

VALVE MATERIAL

Standard Material or Meets Pressure Equipment Directive (PED)

PLATING

No Plating

BODY MATERIAL

Gray Iron or Ductile Iron

Commercial Pressure Regulator – Flo-Con A22019-06-09T16:43:26+00:00

Commercial Pressure Regulator – Flo-Con A9

The A9 ductile, iron bodied, pilot operated regulators with brazed copper couplings are used to modulate the flow of refrigerant gas to maintain a nearly constant outlet pressure at the sensing point.

parker refrigeration Clark Johnson Co

Refrigerant Pressure Regulators

Commercial Pressure Regulator – Flo-Con A9

The A9 ductile, iron bodied, pilot operated regulators with brazed copper couplings are used to modulate the flow of refrigerant gas to maintain a nearly constant outlet pressure at the sensing point.

The A9 has a unique design allows the commercial pressure regulator to be soldered into the line without disassembly, yet allows disassembly of the valve for cleaning and maintenance without removing the regulator from line.

This regulator is normally furnished as A9E externally equalized. The pressure being controlled is that pressure at the external equalizer connection. In many applications where it is acceptable to control the pressure at the outlet of the regulator, an internally equalized regulator should be used. In this instance, the A9 should be ordered. For pump‑down control the regulator must be electrically shut off.

Specify A9S or A9SE “with pilot electric shut‑off” and specify voltage and frequency. Alternately, a separate full size solenoid valve can be used upstream of the regulator for shut‑off.

NOTE: A9E or A9SE cannot be converted to A9 or A9S without replacing the #22 adapter.

Market:

• Commercial Refrigeration

Features and Benefits:

• Controls outlet pressure at sensing point

• Pilot operated for close regulation

• Few sizes cover entire capacity range

• External or internal equalizer

• Available with integral electric shut‑off

• Tight seating ‑ simple adjustment

• Sweat end design solders into line without disassembly

• Cleanable in line ‑ Nominal capacities 1.3 to 24 tons

• CSA certified (A9S and A9SE types only)

• UL listed

• 27.5 bar (400 psig) maximum rated pressure (MRP)

• Adjustment range: Range A = 250mm hg to 8.2 bar (10” hg to

• 120 psig); Range B = 5.5 to 15.1 bar (80 to 220 psig)

• Minimum pressure drop to open valve completely: 0.67 bar(10 psi)

• Maximum pressure change from valve closed to completely open: 0.34 bar (5 psi)

• Temperature range: ‑45°C to 93°C (‑50°F to 200°F)

Application:

• These Regulators modulate the flow of refrigerant gas to maintain a nearly constant pressure at the sensing point at the outlet or at a remote point (A9E) of the regulator.

• These regulators allow loading of the system to eliminate short cycling of the compressors, provide required humidity control, and proper oil return.

• Booster suction control to prevent deep vacuum

• Air cooled condenser control

• Hot gas defrost control

• Liquid pressure control

TYPE

A9, A9S, A9E, A9SE, A9B, A9SEH

OPERATION STYLE

Hot Gas Bypass

OPERATING FEATURES

Standard, Electric Shut-Off, Electric Wide Open, Electric Shut-Off with Handwheel

EQUALIZER METHOD

Internally Equalized, Externally Equalized

PORT SIZE (MM)

9mm, 15mm, 22mm, 28mm

PORT SIZE (INCH)

3/8″, 5/8″, 7/8″, 1-1/8″

CONNECTION SIZE (MM)

15mm, 22mm, 28mm

CONNECTION SIZE (INCH)

5/8″, 7/8″, 1-1/8″

PRESSURE RANGE (BAR)

Range A: 250mm Hg to 8.3 bar, Range B: 5.5 to 15.1 bar

PRESSURE RANGE (PSIG)

Range A: 10″ Hg to 120 psig, Range B: 80 to 220 psig

POWER VOLTS/PHASE/HZ

N/A, 110-120VAC ~ 50/60Hz, 220-240VAC ~ 50/60Hz, 208VAC ~ 60Hz

WEIGHT (LBS)

3lbs, 4lbs

Commercial Pressure Regulator – Flo-Con A92019-06-10T00:39:04+00:00

Commercial Pressure Regulator – Flo-Con (S)PORT/ (S) PORTII

The FloCon (S)PORT/ (S)PORTII commercial evaporator pressure regulators provide tight control in a variety of applications.

The commercial pressure regulator (S)PORT/ (S)PORTII valves are designed with stainless steel bonnet bolts, adjusting stems, and piston and plug assemblies. The result is a regulator designed to withstand the rigorous application environment a low side regulator must endure. Models are available in combinations of connection sizes, port sizes and features as designated by the model code. Unlike some competitive models of low side regulators that utilize high pressure discharge gas as a pilot source, they are piloted with upstream pressure. This eliminates the requirement for hot gas headers, isolation devices, piping, and the labor associated with the installation of other valves. Flare connections from high pressure pilot lines are also eliminated, minimizing sources for prospective leaks.

The valves are an integrated assembly of (4) modules:

1) A body, which contains no moving parts

2) A capacity cartridge, which contains both piston and modulating plug, and defines the Port Size

3) A pilot adapter, which defines the valve function and onto which the Pilot Solenoids providing the “S” (Shut-off) or “B” (Bypass) features are added as required

4) The bonnet, containing the Range Spring and Adjustment Screw, which is set for the value of pressure which the valve is to maintain.

The unique modular design allows the regulator to be soldered into the line without disassembly, yet provides full access for disassembly, cleaning and servicing from the top only. Interchangeable capacity cartridges facilitate flow revisions should an undersized or oversized condition be encountered, while pilot adapters can be changed out to add features or even change functions.

Markets:

• Commercial Refrigeration

Features and Benefits:

• Retrofitting for additional evaporator capacity is simple and requires no pipe line revisions

• The piston and plug assembly can handle reduced flow conditions and controlling down to about 15% of the valve’s maximum capacity

• Designed entirely with corrosion resistant materials

• New cooler running coil and open frame coil housing

• New dual voltage 208/240/60 Hz coil

• Conveniently located access fitting

• Pilot operated for close control at desired set-point

• Excellent regulation at light loads

• Interchangeable capacity cartridges

• Low pressure drop

• Few moving parts

• Long-life stainless steel diaphragms (no bellows to fail)

• Variations available for pilot electric shut-off and shut-off with electric wide-opening (bypass)

• Manual opening feature (except (S) PORT 11- B and (S) PORT – B version)

• All service from the top

• Sweat-in-place without disassembly

• UL listed (except 50 Hertz versions)

• Design pressure (M.R.P.): 31.0 bar (450 psig)

• Range: 250mm hg to 8.3 bar (10″ hg to 120 psig)

Application:

• Evaporator pressure control

MAXIMUM RATED PRESSURE (BAR)

31.0 bar

MAXIMUM RATED PRESSURE (PSIG)

450 psig

PRESSURE RANGE

Range A: 250mm Hg to 8.3 bar (10″ Hg to 120 psig)

VALVE TYPE

A8 PORT II, A8 PORT II B, A8 SPORT II, A8 SPORT II B, A8 SPORT, A8 PORT, A8 SPORT B, A8 PORT B

VALVE STYLE

Evaporator Pressure Regulator

WEIGHT (LBS)

9lbs- to 17lbs

CONNECTION TYPE

Sweat-in-place w/o Disassembly

POWER VOLTS/PHASE/HZ

Not Applicable, 110-120VAC ~ 50/60Hz, 220-240VAC ~ 50/60Hz, 208VAC ~ 60Hz

OPERATION STYLE

Pilot Operated

Commercial Pressure Regulator – Flo-Con (S)PORT/ (S) PORTII2019-06-09T16:43:38+00:00

Commercial Pressure Regulator – Flo-Con A8

The A8 ductile iron-bodied regulators, with brazed copper couplings, maintain a constant pressure at a control point regardless of fluctuations in load, ambient conditions, or alternate diversions for flow.

The A8 has a unique modular design that allows the commercial pressure regulator to be soldered into the line without disassembly, yet provides full access for disassembly, cleaning and servicing from the top only. Interchangeable capacity cartridges facilitate flow revisions should an undersized or oversized condition be created, while pilot adaptors can be changed out to add features or even change functions. Thus, retrofitting for additional evaporator capacity, heat reclaim, or hold back for hot gas defrost is simple and requires no pipe line revisions under most circumstances. These valves will modulate to maintain a pressure as set for in the field, in spite of fluctuations in load, changes in ambient, changes in available refrigerant flow paths, and other operating variances. Appropriately sized, these valves will modulate the flow of liquid or vapor, high side or low side in a wide variety of system arrangements used in industrial, commercial and air conditioning installations. Models are available in combinations of connection sizes, port sizes, functions and features as designated by the model code, for application in a wide variety of control functions on industrial, commercial and air conditioning systems.

Three control functions are available:

Inlet, Outlet, and Differential pressure control. Two control features can be added by incorporating pilot solenoids; either Electric Shut-Off(S) or Electric Bypass (B); also called Wide-Opening.

The valves are an integrated assembly of four modules:

1) A body, which contains no moving parts, but is ordered to suit a particular connection size;

2) A capacity cartridge, which contains both piston and modulating plug, and defines the Port Size;

3) A pilot adapter, which defines the valve function and onto which the Pilot Solenoids providing either the “S” or “B” feature are added as required;

4) The bonnet, containing the Range Spring and adjustment screw, which mechanisms are set for the value of pressure which the valve is to maintain.

Market:

• Commercial Refrigeration

Features and Benefits:

• Inlet and outlet functions feature the wide range pressure setting, 250mm Hg to 27.6bar (10” Hg to 400 psig)

• Regulators for differential function have a range of 0 to 8.3 bar (0 to 120 psi)

• Dual spring for wide range pressure set-points

• Pilot operated for close control at desired set-point

• Excellent regulation at light loads

• Interchangeable capacity cartridges (Except for the A82’s)

• Inlet, outlet or differential regulator functions

• Low pressure drop

• Few moving parts

• Long life stainless steel diaphragms

• Variations available for pilot electric shut-off and pilot electric wide open pressure control

• Manual openings feature

• All service from the top

• Sweat-in-place without disassembly

Application:

• Industrial Refrigeration

• Commercial Refrigeration

• Air Conditioning

• A particular inlet regulator can be applied to control evaporator, condensate, discharge, or defrost relief pressure

• A particular outlet regulator can be applied to control crankcase, receiver or hot gas bypass

• A differential regulator can be applied to maintain oil receiver pressure, or discharge differential, or liquid line differential pressure

TYPE

Various Valve Types- Please Configure Part for Specification

OPERATING STYLE

9mm to 66mm

OPERATING FEATURES

3/8″ to 2-5/8″

EQUALIZER METHOD

15mm to 86mm

PORT SIZE (MM)

5/8″ to 3-3/8″

PORT SIZE (INCH)

7lbs to 18lbs

CONNECTION SIZE (MM)

250mm Hg to 27.6 bar or 0 to 8.3 bar

CONNECTION SIZE (INCH)

10″ Hg to 400 psig, 0 to 120 psig, 0 to 120 psig

PRESSURE RANGE (BAR)

Standard, Electric Wide Open, Electric Shut- Off, Electric Shut- Off and Electric Wide Opening

PRESSURE RANGE (PSIG)

Not Applicable, 110-120VAC ~ 50/60 Hz, 220-240VAC ~ 50/60 Hz, 208VAC ~ 60 HZ

POWER VOLTS/PHASE/HZ

Inlet, Differential, Outlet

WEIGHT (LBS)

Internally Equalized or Externally Equalized

Commercial Pressure Regulator – Flo-Con A82019-06-09T16:43:44+00:00
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