Port Size
- 20mm (3/4 in) (45)
- 25mm (1 in) (29)
- 32mm (1 1/4 in) (32)
- 40mm (1 5/8 in) (31)
- 50mm (2 in) (20)
- 65mm (2 1/2 in) (24)
- 75mm (3 in) (13)
- 100mm (4 in) (8)
Check Valve
Coil
Coil Style
- DIN, CE Approved (5)
- DIN, Green LED Pilot Light (21)
- DIN, Red LED Pilot Light (9)
- DIN, Standard (10)
- Leaded, Green LED Pilot Light (47)
- Leaded, Red LED Pilot Light (15)
- Leaded, Standard (74)
- No Coil Style (21)
Flange Type
Flange Connection
- 3/4 in (16)
- 1 in (19)
- 1 1/4 in (43)
- 1 1/2 in (26)
- 2 in (31)
- 2 1/2 in (11)
- 3 in (21)
- 4 in (8)
- None (27)
Motor/IO Module
Plated
Range
Reduced Capacity
Set Point
Valve Material
Brands
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 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 A4AS RA 1-1/4FPT 120 ST | A40FA250A7F32B1XYXSN See Details |
25mm (1 in) | None | 120/60 | Leaded, Standard | FPT | 1 1/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 1-1/4SW 120 QD ST | A40FA250A7S32B4XYXSN See Details |
25mm (1 in) | None | 120/60 | DIN, Standard | SW | 1 1/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 1-1/4SW 120 ST | A40FA250A7S32B1XYXSN See Details |
25mm (1 in) | None | 120/60 | Leaded, Standard | SW | 1 1/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 1-1/4SW 120 ST CK4 | A40FA250A7S32B1XY4SN See Details |
25mm (1 in) | w/ CK-4 | 120/60 | Leaded, Standard | SW | 1 1/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 1-1/4SW 120EXT ST | A40FA250A7S32E1XYXSN See Details |
25mm (1 in) | None | 120 EXT | Leaded, Standard | SW | 1 1/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 1-1/4SW 120G QD ST | A40FA250A7S32B6XYXSN See Details |
25mm (1 in) | None | 120/60 | DIN, Green LED Pilot Light | SW | 1 1/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 1-1/4SW 120G ST | A40FA250A7S32B3XYXSN See Details |
25mm (1 in) | None | 120/60 | Leaded, Green LED Pilot Light | SW | 1 1/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 1-1/4SW 120R ST | A40FA250A7S32B2XYXSN See Details |
25mm (1 in) | None | 120/60 | Leaded, Red LED Pilot Light | SW | 1 1/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 1-1/4SW ST | A40FA250A7S32X0XYXSN See Details |
25mm (1 in) | None | No Coil, AC | No Coil Style | SW | 1 1/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 1-1/4WN 120 ST | A40FA250A7W32B1XYXSN See Details |
25mm (1 in) | None | 120/60 | Leaded, Standard | WN | 1 1/4 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 120 ST | A40FA250A7X00B1XYXSN See Details |
25mm (1 in) | None | 120/60 | Leaded, Standard | No Flange | None | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 120G ST | A40FA250A7X00B3XYXSN See Details |
25mm (1 in) | None | 120/60 | Leaded, Green LED Pilot Light | No Flange | None | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 120R QD ST | A40FA250A7X00B5XYXSN See Details |
25mm (1 in) | None | 120/60 | DIN, Red LED Pilot Light | No Flange | None | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 120R ST | A40FA250A7X00B2XYXSN See Details |
25mm (1 in) | None | 120/60 | Leaded, Red LED Pilot Light | No Flange | None | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 1FPT ST | A40FA250A7F25X0XYXSN See Details |
25mm (1 in) | None | No Coil, AC | No Coil Style | FPT | 1 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 1SW 120 ST | A40FA250A7S25B1XYXSN See Details |
25mm (1 in) | None | 120/60 | Leaded, Standard | SW | 1 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 1SW 120G QD ST | A40FA250A7S25B6XYXSN See Details |
25mm (1 in) | None | 120/60 | DIN, Green LED Pilot Light | SW | 1 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 1SW 120G ST | A40FA250A7S25B3XYXSN See Details |
25mm (1 in) | None | 120/60 | Leaded, Green LED Pilot Light | SW | 1 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 1SW 120R ST | A40FA250A7S25B2XYXSN See Details |
25mm (1 in) | None | 120/60 | Leaded, Red LED Pilot Light | SW | 1 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||
| 1 A4AS RA 1SW 230 QD ST | A40FA250A7S25F7XYXSN See Details |
25mm (1 in) | None | 230/50 | DIN, CE Approved | SW | 1 in | 0.35 to 10 (5 to 150) | Full Capacity | 2.8 (40) | w/ Strainer |
|
|||