Refrigerating Specialties Division
9
TABLE OF DIMENSIONS FOR INLET PRESSURE REGULATORS Types A4AS, A4AB, A4AD and A4AZ
Types A4AS,
Type A4AD
Type
20mm & 25mm
32mm
40mm & 50mm
65mm
75mm
A4AB & A4AZ
only
(3/4 & 1”)
(1-1/4”)
(1-5/8 & 2”)
(2-1/2”)
(3”)
100mm (4”)
100mm (4”)
DIMENSION
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm inch
mm inch
A
429
16.9
447
17.6
500
19.7
513
20.2
632
24.9
685 27.0
685 27.0
B
148
5.8
162
6.3
177
6.9
181
7.1
273
10.7
292 11.5
292 11.5
C
164
6.2
203
8.0
251
9.9
251
9.9
311
12.2
339 14.1
339 14.1
(D)
1/2”
216
8.5
1-1/4”
256
10.1
1-1/2”
307
12.1
(FPT) for
3/4”
216
8.5
2-1/2”
331
13.0
3”
389
15.3
4”
450 17.7
4”
450 17.7
PIPE SIZES
1”
216
8.5
1-1/2”
256
10.1
2”
307
12.1
SHOWN
1-1/4”
216
8.5
(E)
1/2”
216
8.5
1-1/4”
256
10.1
1-1/2”
307
12.1
(SW) FOR
3/4”
216
8.5
2-1/2”
331
13.0
3”
389
15.3
4”
450 17.7
4”
450 17.7
PIPE SIZES
1”
216
8.5
1-1/2”
256
10.1
2”
307
12.1
SHOWN
1-1/4”
216
8.5
(F)
—
—
—
1-1/4”
300
11.8
1-1/2”
364
14.3
(WN) FOR
3/4”
254
10.0
2-1/2”
401
15.6
3”
478
18.8
4”
571 22.5
4”
571 22.5
PIPE SIZES
1”
261
10.3
1-1/2”
304
12.0
2”
371
14.6
SHOWN
1-1/4”
261
10.3
(G)
7/8”
239
9.4
1-3/8”
269
10.6
1-5/8”
358
14.1
2-5/8”
348
13.7
3-1/8”
414
16.3
(ODS) FOR
1-1/8”
239
9.4
4-1/8”
503 19.8
4-1/8”
503 19.8
TUBE SIZES
1-3/8”
231
9.1
1-5/8”
279
11.0
2-1/8”
338
13.3
3-1/8”
389
15.3
3-5/8”
432
17.0
SHOWN
1-5/8”
239
9.4
2-1/8”
305
12.0
2-5/8”
358
14.1
H
117
4.6
117
4.6
140
5.5
159
6.2
178
7.0
222
8.8
222
8.8
J
98
3.9
178
7.0
251
9.9
314
12.4
314
12.4
363 14.3
363 14.3
K
112
4.4
112
4.4
117
4.6
124
4.9
142
5.6
158
6.2
157
6.2
L
122
4.8
122
4.8
135
5.3
133
5.2
122
4.8
152
6.0
140
5.5
M
138
5.4
138
5.4
140
5.5
150
5.9
170
6.6
190
7.7
