| |
Series 20 Models and Dimensions |
Sect.
Size |
Visible
Range |
Overal
Length |
Reflex,
R-20 Weight |
Transp.,
T-20 Weight |
|
in |
mm |
in |
mm |
Ibs |
Kgs |
Ibs |
Kgs |
11 |
3-3/4 |
95 |
5-1/4 |
133 |
8 |
3.6 |
10 |
4.5 |
12 |
4-3/4 |
121 |
6-1/4 |
159 |
9 |
4.1 |
14 |
6.4 |
13 |
5-3/4 |
146 |
7-1/4 |
184 |
11 |
5.0 |
17 |
7.7 |
14 |
6-3/4 |
171 |
8-1/4 |
210 |
12 |
5.5 |
19 |
8.6 |
15 |
7-7/8 |
200 |
9-3/8 |
238 |
14 |
6.4 |
21 |
9.5 |
16 |
9-1/8 |
232 |
10-5/8 |
270 |
16 |
7.3 |
24 |
10.9 |
17 |
10-1/4 |
260 |
11-3/4 |
298 |
18 |
8.2 |
27 |
12.3 |
18 |
11-7/8 |
302 |
13-3/8 |
340 |
20 |
9.1 |
30 |
13.6 |
19 |
12-5/8 |
321 |
14-1/8 |
359 |
21 |
9.5 |
32 |
14.5 |
23 |
13 |
330 |
14-1/2 |
368 |
22 |
10.0 |
33 |
15.0. |
24 |
15 |
381 |
16-1/2 |
419 |
25 |
11.4 |
38 |
17.3 |
25 |
17-1/4 |
438 |
18-3/4 |
476 |
28 |
12.7 |
43 |
19.5 |
26 |
19-3/4 |
502 |
21-1/4 |
540 |
32 |
14.5 |
49 |
22.3 |
27 |
22 |
559 |
23-1/2 |
597 |
35 |
15.9 |
54 |
24.5 |
28 |
25-1/4 |
641 |
26-3/4 |
679 |
40 |
18.2 |
61 |
27.7 |
29 |
26-3/4 |
679 |
28-1/4 |
718 |
43 |
19.5 |
64 |
29.1 |
36 |
30-3/8 |
772 |
31-7/8 |
810 |
48 |
21.8 |
73 |
33.2 |
37 |
33-3/4 |
857 |
35-1/4 |
895 |
53 |
24.1 |
80 |
36.4 |
38 |
38-5/8 |
981 |
40-1/8 |
1019 |
60 |
27.3 |
92 |
41.8 |
39 |
40-7/8 |
1038 |
42-3/8 |
1076 |
64 |
29.1 |
97 |
44.1 |
47 |
45-1/2 |
1156 |
47 |
1194 |
71 |
32.3 |
107 |
48.6 |
48 |
52 |
1321 |
53-1/2 |
1359 |
80 |
36.4 |
122 |
55.5 |
49 |
55 |
1397 |
56-1/2 |
1435 |
85 |
38.6 |
129 |
58.6 |
57 |
57-1/4 |
1454 |
58-3/4 |
1492 |
88 |
40.0 |
134 |
60.9 |
58 |
65-3/8 |
1661 |
66-7/8 |
1699 |
100 |
45.5 |
152 |
69.1 |
59 |
69-1/8 |
1756 |
70-5/8 |
1794 |
106 |
48.2 |
161 |
73.2 |
68 |
78-3/4 |
2000 |
80-1/4 |
2038 |
120 |
54.5 |
187 |
85.0 |
69 |
83-1/4 |
2115 |
84-3/4 |
2153 |
127 |
57.7 |
196 |
89.1 |
78 |
92-1/8 |
2340 |
93-5/8 |
2378 |
140 |
63.6 |
221 |
100.5 |
79 |
97-3/8 |
2473 |
98-7/8 |
2511 |
148 |
67.3 |
230 |
104.5 |
88 |
105-1/2 |
2680 |
107 |
2718 |
160 |
72.7 |
254 |
115.5 |
89 |
111-1/2 |
2832 |
113 |
2870 |
169 |
76.8 |
265 |
120.5 |
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| |
| SPECIFICATIONS: |
| SECTION LENGTHS: |
| Gage sections are available in nine standard glass
sizes. Longer sizes are constructed with multiple vision slots
in a continuous solid bar chamber. |
| |
| CONNECTIONS: |
| Standard connections are at top and bottom and are
% or 3 /, NPT female. Optional connections are available, such
as socket weld, flanged or close hook-up (side/side). |
| |
| LIQUID CHAMBER: |
| Machined from bar stock. The gasket seat is recessed
to allow lateral support and facilitate positioning. |
| |
| COVERS: |
| Forged carbon steel is standard. Optional materials
are available. The cushion gasket seat is recessed. |
| |
| BOLTS & NUTS: |
| Alloy steel is standard, A193 B7 and Al 94 2H. Optional
materials are available. All steel fasteners are "black oxide" treated
to prevent rust. |
| |
| GLASS: |
| Tempered Borosilicate is used to 600° F (316°).
Aluminosilicate is used to 800° (427° C). Transparent glass
may be protected from corrosive media with mica or Neoflon CTFE
shields. |
| |
| GASKETS: |
| Standard gaskets are precision die cut in proprietary
Jerguson dies. |
| |
| FINISH: |
| All steel parts are finish coated prior to assembly.
Stainless steel is not coated. |
| |
| VALVES: |
| Use of Jerguson gage valves is strongly recommended.
Standard features include safety ball checks which help prevent
loss of product and physical injury in the event of failure. |
| |
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