Port Size
- 20mm (3/4 in) (5)
- 25mm (1 in) (5)
- 32mm (1 1/4 in) (6)
- 40mm (1 5/8 in) (4)
- 50mm (2 in) (1)
- 65mm (2 1/2 in) (2)
- 75mm (3 in) (1)
- 100mm (4 in) (1)
Flange Type
Flange Connection
Check Valve
Coil
Motor/IO Module
Plated
Range
Reduced Capacity
Set Point
Strainer
Valve Material
Parker A4AB Electric Wide Opening 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 | Check Valve | Coil | Coil Style | Range | Reduced Capacity | Set Point | Strainer | Valve Material | Price | Qty | Add To Cart | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/4 A4AB RA 120G QD ST | A401A200A7X00B6XYXSN See Details |
20mm (3/4 in) | No Flange | None | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer | Standard Valve |
|
|||
| 3/4 A4AB RA 3/4SW 120G QD ST | A401A200A7S20B6XYXSN See Details |
20mm (3/4 in) | SW | 3/4 in | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer | Standard Valve |
|
|||
| 3/4 A4AB RA 50% CAP 1SW 120G Q D | A401A205A7S25B6XNXSN See Details |
20mm (3/4 in) | SW | 1 in | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | 0.5 | 2.8 (40) | No Strainer | Standard Valve |
|
|||
| 3/4 A4AB RA 1SW 120G QD ST | A401A200A7S25B6XYXSN See Details |
20mm (3/4 in) | SW | 1 in | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer | Standard Valve |
|
|||
| 3/4 A4AB RA 50% CAP 1-1/4SW 12 0G QD | A401A205A7S32B6XNXSN See Details |
20mm (3/4 in) | SW | 1 1/4 in | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | 0.5 | 2.8 (40) | No Strainer | Standard Valve |
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| 1 A4AB RA 120G QD | A401A250A7X00B6XNXSN See Details |
25mm (1 in) | No Flange | None | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer | Standard Valve |
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| 1 A4AB RA 120G QD ST | A401A250A7X00B6XYXSN See Details |
25mm (1 in) | No Flange | None | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer | Standard Valve |
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| 1 A4AB RA 1SW 120G QD ST | A401A250A7S25B6XYXSN See Details |
25mm (1 in) | SW | 1 in | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer | Standard Valve |
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| 1 A4AB RD 1SW 120G QD ST | A401D250C9S25B6XYXSN See Details |
25mm (1 in) | SW | 1 in | None | 120/60 | DIN, Green LED Pilot Light | 5.2 to 19.3 (75 to 280) | Full Capacity | 9.7 (140) | w/ Strainer | Standard Valve |
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| 1 A4AB RA 1-1/4SW 120G QD | A401A250A7S32B6XNXSN See Details |
25mm (1 in) | SW | 1 1/4 in | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer | Standard Valve |
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| 1-1/4 A4AB RA 120G QD ST | A401A320A7X00B6XYXSN See Details |
32mm (1 1/4 in) | No Flange | None | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer | Standard Valve |
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| 1-1/4 A4AB RA 1-1/4SW 120G QD ST | A401A320A7S32B6XYXSN See Details |
32mm (1 1/4 in) | SW | 1 1/4 in | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer | Standard Valve |
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| 1-1/4 A4AB RA 1-1/4SW 120G QD CK4 | A401A320A7S32B6XN4SN See Details |
32mm (1 1/4 in) | SW | 1 1/4 in | w/ CK-4 | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer | Standard Valve |
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| 1-1/4 A4AB RA 1-1/4SW 120G QD ST CK4 | A401A320A7S32B6XY4SN See Details |
32mm (1 1/4 in) | SW | 1 1/4 in | w/ CK-4 | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer | Standard Valve |
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| 1-1/4 A4AB RA 1-1/2SW 120G QD | A401A320A7S38B6XNXSN See Details |
32mm (1 1/4 in) | SW | 1 1/2 in | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer | Standard Valve |
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| 1-1/4 A4AB RA 1-1/2SW 120G QD ST | A401A320A7S38B6XYXSN See Details |
32mm (1 1/4 in) | SW | 1 1/2 in | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer | Standard Valve |
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| 1-5/8 A4AB RA 1-1/2SW 120G QD ST | A401A400A7S38B6XYXSN See Details |
40mm (1 5/8 in) | SW | 1 1/2 in | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer | Standard Valve |
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| 1-5/8 A4AB RA 2SW 120G QD | A401A400A7S50B6XNXSN See Details |
40mm (1 5/8 in) | SW | 2 in | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer | Standard Valve |
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| 1-5/8 A4AB RA 2SW 120G QD ST | A401A400A7S50B6XYXSN See Details |
40mm (1 5/8 in) | SW | 2 in | None | 120/60 | DIN, Green LED Pilot Light | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer | Standard Valve |
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| 1-5/8 A4AB RD 2SW 120G QD | A401D400C9S50B6XNXSN See Details |
40mm (1 5/8 in) | SW | 2 in | None | 120/60 | DIN, Green LED Pilot Light | 5.2 to 19.3 (75 to 280) | Full Capacity | 9.7 (140) | No Strainer | Standard Valve |
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