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Port Size

Flange Type

Check Valve

Coil

Coil Style

Motor/IO Module

Plated

Range

Reduced Capacity

Set Point

Strainer

Valve Material

Parker A4AM Electrically Compensated Inlet Regulators

The A4A outlet family of regulators are compact, heavy duty, pilot operated, and have remarkable functionality. The regulator will gradually close when downstream pressure begins to rise above the setting and will gradually open when pressure begins to fall below the setting. The regulator cannot maintain set-for pressure if uncontrolled branch pipe lines feed into the main pipeline downstream of the regulator. The valve's purpose is to modulate flow of refrigerant gas or liquid to maintain constant downstream pressure as set-for, despite load fluctuations.
Part Kits

 

 
20mm (3/4")
25mm (1 ")
Item No.
Description
Kit No.
Qty
Kit No.
Qty
1
Seal Cap
 Only Avail. With Kit
 
 1
 
 Only Avail with Kit
 
 1
 
2
Seal Cap Gasket
 Only Avail with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
1-2
Cap Kit, Seal
 202110
 
 1
 
 202110
 
 1
 
3
Nut, Packing
 Only Avail. With Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
4
Packing, Stem
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
5
Washer, Flat
 Only Avail. with Kit
 
 1
 
 Only Avail. With Kit
 
 1
 
3-5
Packing Kit, Stem
 202100
 
 1
 
 202100
 
 1
 
6
Stem, Adjusting
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
4-6
Stem Kit, Adjusting
 202120
 
 1
 
 202120
 
 1
 
12
Plate, Spring, Upper
 Only Avail with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
13
Spring, Comp.
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
14
Plate, Spring, Lower
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
15
Follower, Diaphragm
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
3-5, 6, 12-15
Spring/ Stem Kit
Range A/V
 202006
 
 1
 
 202006
 
 1
 
Range D
 202007
 
 1
 
 202007
 
 1
 
8
Bonnet
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
11
Screw, Hx. Hd.
 Only Avail. with Kit
 
 8
 
 Only Avail. with Kit
 
 8
 
16
Bonnet Gasket
 Only Avail. With Kit
 
 1
 
 Only Avail. With Kit
 
 1
 
1-6, 8, 11-16
Spring Kit with Bonnet
Range A/V
 202008
 
 1
 
 202008
 
 1
 
Range D
 202009
 
 1
 
 202009
 
 1
 
12-14, 16
Spring Kit, Less Bonnet
Range A/V
 202481
 
 1
 
 202481
 
 1
 
Range D
 202482
 
 1
 
 202482
 
 1
 
17
Diaphragm
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
19
Gasket
 Only Avail. with Kit
 
 I
 
 Only Avail. with Kit
 
 1
 
16,17, 19
Diaphragm Kit
Range A/V
 200770
 
 1
 
 200770
 
 1
 
17
Diaphragms
Range D
 Only Avail. with Kit
 
 2
 
 Only Avail, with Kit
 
 2
 
16,17, 19
Diaphragm Kit
Range D
 200771
 
 1
 
 200771
 
 1
 
16-19
VC Vacuum Cartridge
 202004
 
 1
 
 202004
 
 1
 
16-19
 
 Pilot Seat/ Diaphragm Kit (Not A4AO)
 
 Range A
 
 202000
 
 1
 
 202000
 
 1
 
Range V
 
 202004
 
 1
 
 202004
 
 1
 
Range D
 
 202002
 
 1
 
 202002
 
 1
 
27
Plug Pkg, 1/4" NPT
 202552
 
 5
 
 202552
 
 5
 
28
Adapter
 Only Avail. With Kit
 
 1
 
 Only Avail. With Kit
 
 1
 
29
Gasket
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
19,28, 29
Adapter Kit
 200703
 
 1
 
 200703
 
 1
 
30
Piston/Stem Assembly
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
29,30
Piston Kit
 200760
 
 1
 
 200760
 
 1
 
32
Valve Body
 Not Available
 
 
 Not Available
 
 
34
Spring, Comp.
 Only Avail. with Kit
 
 1
 
 Only Avail. With Kit
 
 1
 
35
Washer, Flat
 Only Avail. with Kit
 
 1
 
 Only Avail. With Kit
 
 1
 
36
Wiper, Dirt
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
37
"O" Ring
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
34-37
Spring Kit, (A4A) Closing (A4AK)
 202300
 
 1
 
 202300
 
 1
 
202298
 
 1
 
 202298
 
 1
 
33
Plug/Stem Assembly
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
40
Washer, Flat
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
41
Packing, Stem
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
42
Nut, Packing
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
33, 34-37, 40-42
Full Cap. Plug Kit, Modul.
 A4A
 
 202021
 
 1
 
 202022
 
 1
 
A4AK
 
 202037
 
 1
 
 202038
 
 1
 
33, 34-37, 40-42
50% Cap. Plug   Kit, Modul.
 A4A
 
 202029
 
 1
 
 (*)
 
 
A4AK
 
 202036
 
 1
 
 (*)
 
 
33, 34-37, 40-42
35% Cap. Plug
Kit, Modul.
 A4A
 
 Not Available
 
  
 
 Not Available
 
 
A4AK
 
 Not Available
 
  
 
 Not Available
 
 
33, 34-37, 40-42
17% Cap. Plug Kit, Modul.
 (A4A)
 
 202030
 
 1
 
 (*)
 
 
(A4AK)
 
 202030
 
 1
 
 (*)
 
 
 
 
 
32mm (1-1/4")
40mm (1-5/8")
50mm (2")
65mm (2-1/2")
75mm (3")
100mm (4")
Item No.
Kit No.
Qty
Kit No.
Qty
Kit No.
Qty
Kit No.
Qty
Kit No.
Qty
Kit No.
Qty
1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
2
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
1-2
 
 202110
 
 1
 
 202110
 
 1
 
 202110
 
 1
 
 202110
 
 1
 
 202110
 
 1
 
 202110
 
 1
 
3
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail, with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
4
 
 Only Avail, with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
5
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
3-5
 
 202100
 
 1
 
 202100
 
 1
 
 202100
 
 1
 
 202100
 
 1
 
 202100
 
 1
 
 202100
 
 1
 
6
 
 Only Avail. with Kit
 
 1
 
 Only Avail with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
4-6
 
 202120
 
 1
 
 202120
 
 1
 
 202120
 
 1
 
 202120
 
 1
 
 202120
 
 1
 
 202120
 
 1
 
12
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail, with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
13
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
14
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 I
 
 Only Avail. with Kit
 
 1
 
15
 
 Only Avail. with Kit
 
 1
 
 Only Avail, with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
3-5, 6, 12-15
 
 202006
 
 1
 
 202006
 
 1
 
 202006
 
 1
 
 202006
 
 1
 
 202006
 
 1
 
 202006
 
 1
 
202007
 
 1
 
 202007
 
 1
 
 202007
 
 1
 
 202007
 
 1
 
 202007
 
 1
 
 202007
 
 1
 
8
 
 Only Avail, with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail, with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
11
 
 Only Avail. with Kit
 
 8
 
 Only Avail. with Kit
 
 8
 
 Only Avail. with Kit
 
 8
 
 Only Avail. with Kit
 
 8
 
 Only Avail. with Kit
 
 8
 
 Only Avail. with Kit
 
 8
 
16
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
1-6, 8, 11-16
 
 202008
 
 1
 
 202008
 
 1
 
 202008
 
 1
 
 202008
 
 1
 
 202008
 
 1
 
 202008
 
 1
 
202009
 
 1
 
 202009
 
 1
 
 202009
 
 1
 
 202009
 
 1
 
 202009
 
 1
 
 202009
 
 1
 
12-14, 16
 
 202481
 
 1
 
 202481
 
 1
 
 202481
 
 1
 
 202481.
 
 1
 
 202481
 
 1
 
 202481
 
 1
 
202482
 
 1
 
 202482
 
 1
 
 202482
 
 1
 
 202482
 
 1
 
 202482
 
 1
 
 202482
 
 1
 
17
 
 Only Avail with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail, with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
19
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail, with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
16,17, 19
 
 200770
 
 1
 
 200770
 
 1
 
 200770
 
 1
 
 200770
 
 1
 
 200770
 
 1
 
 200770
 
 1
 
17
 
 Only Avail with Kit
 
 2
 
 Only Avail with Kit
 
 2
 
 Only Avail. with Kit
 
 2
 
 Only Avail. with Kit
 
 2
 
 Only Avail. with Kit
 
 2
 
 Only Avail. with Kit
 
 2
 
16,17, 19
 
 200771
 
 1
 
 200771
 
 1
 
 200771
 
 1
 
 200771
 
 1
 
 200771
 
 1
 
 200771
 
 1
 
16-19
 
 202004
 
 1
 
 202004
 
 1
 
 202004
 
 1
 
 202004
 
 1
 
 202004
 
 1
 
 202004
 
 1
 
16-19
 
 202000
 
 1
 
 202000
 
 1
 
 202000
 
 1
 
 202001
 
 1
 
 202001
 
 1
 
 202001
 
 1
 
202004
 
 1
 
 202004
 
 1
 
 202004
 
 1
 
 202004
 
 1
 
 202004
 
 1
 
 202004
 
 1
 
202002
 
 1
 
 202002
 
 1
 
 202002
 
 1
 
 202003
 
 1
 
 202003
 
 1
 
 202003
 
 1
 
27
 
 202552
 
 5
 
 202552
 
 5
 
 202552
 
 5
 
 202552
 
 5
 
 202552
 
 5
 
 202552
 
 5
 
28
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
29
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
19.28,29
 
 200700
 
 1
 
 200725
 
 1
 
 200725
 
 1
 
 200685
 
 1
 
 200713
 
 1
 
 200716
 
 1
 
30
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
29,30
 
 200767
 
 1
 
 200389
 
 1
 
 200389
 
 1
 
 200391
 
 1
 
 200393
 
 1
 
 200227
 
 1
 
32
 
 Not Available
 
 
 Not Available
 
 
 Not Available
 
 
 Not Available
 
 
 Not Available
 
 
 Not7vailable
 
 
34
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail, with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail, with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
35
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Onlv Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
36
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit
 
 1
 
 Only Avail. with Kit

Sku Port Size Flange Type Flange Connection Motor/IO Module Range Reduced Capacity Set Point Strainer Valve Material Price Qty Add To Cart
3/4 A4AM RA HDWR A409A200A7X00X01NXSN
See Details		 20mm (3/4 in) No Flange None Mounting Kit, Standard (Std) CAM 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$1,911.78
3/4 A4AM RA A409A200A7X00X0XNXSN
See Details		 20mm (3/4 in) No Flange None None 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$461.13
1 A4AM RA 120V4-20 A409A250A7X00X04NXSN
See Details		 25mm (1 in) No Flange None Motor Assembly, 120 V 50/60 Hz 4-20 mA Std CAM 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$2,942.91
1-1/4 A4AM RA 120V4-20 A409A320A7X00X04NXSN
See Details		 32mm (1 1/4 in) No Flange None Motor Assembly, 120 V 50/60 Hz 4-20 mA Std CAM 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$3,182.31
1-1/4 A4AM RA 35% CAP HDWR A409A323A7X00X01NXSN
See Details		 32mm (1 1/4 in) No Flange None Mounting Kit, Standard (Std) CAM 0.35 to 10 (5 to 150) 0.35 2.8 (40) No Strainer Standard Valve
1
$2,386.02
1-1/4 A4AM RA HDWR A409A320A7X00X01NXSN
See Details		 32mm (1 1/4 in) No Flange None Mounting Kit, Standard (Std) CAM 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$2,306.22
1-1/4 A4AM RA A409A320A7X00X0XNXSN
See Details		 32mm (1 1/4 in) No Flange None None 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$855.57
1-5/8 A4AM RA 120V4-20 A409A400A7X00X04NXSN
See Details		 40mm (1 5/8 in) No Flange None Motor Assembly, 120 V 50/60 Hz 4-20 mA Std CAM 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$3,470.73
2 A4AM RA 120V4-20 A409A500A7X00X04NXSN
See Details		 50mm (2 in) No Flange None Motor Assembly, 120 V 50/60 Hz 4-20 mA Std CAM 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$3,670.23
2 A4AM RA 120V4-20 ST A409A500A7X00X04YXSN
See Details		 50mm (2 in) No Flange None Motor Assembly, 120 V 50/60 Hz 4-20 mA Std CAM 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) w/ Strainer Standard Valve
1
$4,184.37
2 A4AM RA HDWR A409A500A7X00X01NXSN
See Details		 50mm (2 in) No Flange None Mounting Kit, Standard (Std) CAM 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$2,794.14
2 A4AM RA A409A500A7X00X0XNXSN
See Details		 50mm (2 in) No Flange None None 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$1,343.49
2-1/2 A4AM RA 120V4-20 A409A650A7X00X04NXSN
See Details		 65mm (2 1/2 in) No Flange None Motor Assembly, 120 V 50/60 Hz 4-20 mA Std CAM 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$4,070.37
2-1/2 A4AM RA HDWR A409A650A7X00X01NXSN
See Details		 65mm (2 1/2 in) No Flange None Mounting Kit, Standard (Std) CAM 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$3,194.28
3 A4AM RA 120V4-20 A409A750A7X00X04NXSN
See Details		 75mm (3 in) No Flange None Motor Assembly, 120 V 50/60 Hz 4-20 mA Std CAM 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$4,798.26
3 A4AM RA 240V4-20 A409A750A7X00X06NXSN
See Details		 75mm (3 in) No Flange None Motor Assembly, 240 V 50/60 Hz 4-20 mA Std CAM 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$4,868.94
3 A4AM RA A409A750A7X00X0XNXSN
See Details		 75mm (3 in) No Flange None None 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$2,471.52
4 A4AM RA 120V4-20 A409AA00A7X00X04NXSN
See Details		 100mm (4 in) No Flange None Motor Assembly, 120 V 50/60 Hz 4-20 mA Std CAM 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Standard Valve
1
$5,942.25
4 A4AM RV 120V4-20 A409VA00A2X00X04NXSN
See Details		 100mm (4 in) No Flange None Motor Assembly, 120 V 50/60 Hz 4-20 mA Std CAM 500mm Hg to 8.3 (20 in Hg to 120) Full Capacity 1.0 (15) No Strainer Standard Valve
1
$6,142.32
4 A4AM DN RA A409AA00A7X00X0XNXPN
See Details		 100mm (4 in) No Flange None None 0.35 to 10 (5 to 150) Full Capacity 2.8 (40) No Strainer Meets Pressure Equipment Directive (PED)
1
$3,820.14