Figure 5: Universal Shield, Position 1; Figure 6: Universal Shield, Position 2; Figure 7: Universal Shield, Position 3 - Roberts Gorden CoRayVac CRV-B-2 Design Manual

NOTE: 1. All dimensions are from the surfaces of all tubes, couplings, elbows, tees and crosses.
2. Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from
where the combustion chamber and the tube connect.

FIGURE 5: UNIVERSAL SHIELD, POSITION 1

FIGURE 6: UNIVERSAL SHIELD, POSITION 2

FIGURE 7: UNIVERSAL SHIELD, POSITION 3

Model A
CRV-B-2 4
CRV-B-4 4
CRV-B-6 4
CRV-B-8 4
CRV-B-9 8
CRV-B-10 8
CRV-B-12 8
CRV-B-12A 8
Model A
CRV-B-2 4
CRV-B-4 4
CRV-B-6 4
CRV-B-8 4
CRV-B-9 4
CRV-B-10 4
CRV-B-12 4
CRV-B-12A 4
Model A
CRV-B-2 4
CRV-B-4 4
CRV-B-6 4
CRV-B-8 4
CRV-B-9 8
CRV-B-10 8
CRV-B-12 8
CRV-B-12A 8
(inches)
B C D
12 12 12
12 12 12
12 12 12
12 12 12
18 24 18
18 24 18
18 24 18
18 24 18
(inches)
B C D
24 48 24
24 48 24
24 48 24
24 48 24
36 48 36
36 48 36
36 48 36
36 48 36
(inches)
B C D
12 56 30
12 56 30
12 56 30
12 56 30
12 60 42
12 60 42
12 60 42
12 60 42
SECTION 3: C C
LEARANCES TO OMBUSTIBLES
(centimeters)
A B C
11 31 31
11 31 31
11 31 31
11 31 31
21 46 61
21 46 61
21 46 61
21 46 61
(centimeters)
A B C
11 61 122
11 61 122
11 61 122
11 61 122
11 92 122
11 92 122
11 92 122
11 92 122
(centimeters)
A B C
11 31 143
11 31 143
11 31 143
11 31 143
21 31 153
21 31 153
21 31 153
21 31 153
D
31
31
31
31
46
46
46
46
D
61
61
61
61
92
92
92
92
D
77
77
77
77
107
107
107
107
7