North American Supervising Gas Valves FM Approved
Dimensions & Instructions 1857-1
F
F
B - checking line pipe size (location varies with size)
D
D
B - checking line pipe size (location varies with size)
L
J - dia. of drilled holes K - no. of drilled holes
A - Gas pipe size
E
A - Gas pipe size
E
H
G
G
C
1857-5-F, -6-F, -7-F
1857-01, -0, -1, -3, -4
8647-01 Filter Weight: 1 lb
8657-03 Bleed Orifice (#76 Drill) Weight: 1 oz
2 ¾ dia.
7⁄8
1 ¼ pipe tap
5 ¾
¼ pipe thread outlet
½ pipe tap inlet
DIMENSIONS SHOWN ARE SUBJECT TO CHANGE. PLEASE OBTAIN CERTIFIED PRINTS FROM FIVES NORTH AMERICAN COMBUSTION, INC. IF SPACE LIMITATIONS OR OTHER CONSIDERATIONS MAKE EXACT DIMENSION(S) CRITICAL.
dimensions in inches
Valve
wt,
designation
A
B
C
D
E
F
G
H
J
K
L
lb
1857-01 1857-0 1857-1 1857-3 1857-4 1857-5-F 1857-6-F 1857-7-F
1 ½ 1 ¾
1⁄8 1⁄8 1⁄8 1⁄8 1⁄8 1⁄8 1⁄8 1⁄8
25⁄8 25⁄8 27⁄8 35⁄8 4 3 /
415⁄32 415⁄32 47⁄8 59⁄16 75⁄8 729⁄32 91⁄32
211⁄32 211⁄32 25⁄16
81⁄8 81⁄8 9 9 / 9 9 /
3 ¾ 3 ¾ 4 ¼
— — — — —
— — — — —
— — — — —
— — — — —
4 ¼ 4 ¼ 5 ½ 9 ¾
1
16
1 ½
31⁄8
5 6
16
2
329⁄32
10 ½
17
8
2 ½
7
43⁄16 429⁄32 61⁄32
10 ½
7 ½
11⁄16
¾ ¾ ¾
4 4 8
5 ½
34 47 80
3 4
7 ½
1727⁄32
8 9
¾
6
9
113⁄8
30
15⁄16
7 ½
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