Port Size
- 20mm (3/4 in) (3)
- 25mm (1 in) (2)
- 32mm (1 1/4 in) (7)
- 40mm (1 5/8 in) (4)
- 50mm (2 in) (4)
- 65mm (2 1/2 in) (4)
- 75mm (3 in) (1)
- 100mm (4 in) (5)
Check Valve
Coil Style
- DIN, Red LED Pilot Light (1)
- DIN, Standard (3)
- Leaded, Green LED Pilot Light (3)
- Leaded, Standard (23)
Flange Type
Flange Connection
Motor/IO Module
Plated
Range
Reduced Capacity
Set Point
Strainer
Valve Material
Parker A4AS Electric Shut-Off 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 | Check Valve | Coil | Coil Style | Flange Type | Flange Connection | Range | Reduced Capacity | Set Point | Strainer | Price | Qty | Add To Cart | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/4 A4AS RA 240 | A40FA200A7X00H1XNXSN See Details |
20mm (3/4 in) | None | 240/60 | Leaded, Standard | No Flange | None | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer |
|
|||
| 3/4 A4AS RA 3/4SW 240 ST | A40FA200A7S20H1XYXSN See Details |
20mm (3/4 in) | None | 240/60 | Leaded, Standard | SW | 3/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 3/4 A4AS RA 1-1/4SW 240 | A40FA200A7S32H1XNXSN See Details |
20mm (3/4 in) | None | 240/60 | Leaded, Standard | SW | 1 1/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer |
|
|||
| 1 A4AS RA 1SW 240 | A40FA250A7S25H1XNXSN See Details |
25mm (1 in) | None | 240/60 | Leaded, Standard | SW | 1 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer |
|
|||
| 1 A4AS RA 1SW 240 ST | A40FA250A7S25H1XYXSN See Details |
25mm (1 in) | None | 240/60 | Leaded, Standard | SW | 1 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1-1/4 A4AS RA 240R QD ST | A40FA320A7X00H5XYXSN See Details |
32mm (1 1/4 in) | None | 240/60 | DIN, Red LED Pilot Light | No Flange | None | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
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| 1-1/4 A4AS RA 1-1/4SW 240 QD | A40FA320A7S32H4XNXSN See Details |
32mm (1 1/4 in) | None | 240/60 | DIN, Standard | SW | 1 1/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer |
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| 1-1/4 A4AS RA 1-1/2WN 240 QD | A40FA320A7W38H4XNXSN See Details |
32mm (1 1/4 in) | None | 240/60 | DIN, Standard | WN | 1 1/2 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer |
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| 1-1/4 A4AS RA 1-1/4SW 240G ST | A40FA320A7S32H3XYXSN See Details |
32mm (1 1/4 in) | None | 240/60 | Leaded, Green LED Pilot Light | SW | 1 1/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
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| 1-1/4 A4AS RA 1-1/4SW 240 | A40FA320A7S32H1XNXSN See Details |
32mm (1 1/4 in) | None | 240/60 | Leaded, Standard | SW | 1 1/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer |
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| 1-1/4 A4AS RA 1-1/4SW 240 ST | A40FA320A7S32H1XYXSN See Details |
32mm (1 1/4 in) | None | 240/60 | Leaded, Standard | SW | 1 1/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
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| 1-1/4 A4AS RA 1-1/2SW 240 | A40FA320A7S38H1XNXSN See Details |
32mm (1 1/4 in) | None | 240/60 | Leaded, Standard | SW | 1 1/2 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer |
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| 1-5/8 A4AS RA 1-1/2SW 240G ST | A40FA400A7S38H3XYXSN See Details |
40mm (1 5/8 in) | None | 240/60 | Leaded, Green LED Pilot Light | SW | 1 1/2 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
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| 1-5/8 A4AS RA 1-1/2SW 240 | A40FA400A7S38H1XNXSN See Details |
40mm (1 5/8 in) | None | 240/60 | Leaded, Standard | SW | 1 1/2 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer |
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| 1-5/8 A4AS RA 1-1/2SW 240 ST | A40FA400A7S38H1XYXSN See Details |
40mm (1 5/8 in) | None | 240/60 | Leaded, Standard | SW | 1 1/2 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
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| 1-5/8 A4AS RA 2SW 240 | A40FA400A7S50H1XNXSN See Details |
40mm (1 5/8 in) | None | 240/60 | Leaded, Standard | SW | 2 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer |
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| 2 A4AS RA 240G | A40FA500A7X00H3XNXSN See Details |
50mm (2 in) | None | 240/60 | Leaded, Green LED Pilot Light | No Flange | None | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer |
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| 2 A4AS RA 240 | A40FA500A7X00H1XNXSN See Details |
50mm (2 in) | None | 240/60 | Leaded, Standard | No Flange | None | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer |
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| 2 A4AS RA 2SW 240 | A40FA500A7S50H1XNXSN See Details |
50mm (2 in) | None | 240/60 | Leaded, Standard | SW | 2 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | No Strainer |
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| 2 A4AS RA 2SW 240 ST | A40FA500A7S50H1XYXSN See Details |
50mm (2 in) | None | 240/60 | Leaded, Standard | SW | 2 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
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