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TECHNICAL DATA
.
SELECTION OF CHAIN OPERATIONS
VALUE HANDWHEEL OUTSIDE
DIAMETER RANGE, OUTSIDE
IN (CM)
CHAIN
OPERATOR
NUMBER
WHEEL RIM 
OUTSIDE DIA
IN (CM)
USES
CHAIN
TRADE SIZE
WGHT/100FT
LBS (KG)
2 to 4 (5,1-10,2)
0
4 (10,2)
2
10 (4,5)
4-1/2 to 5-3/4 (10,8-14,6)
1
5-3/4 (14,6)
1/0
17-1/2 (7,9)
6 to 7-1/2 (15,2-19,1)
1-1/2
7-1/2 (19,1)
1/0
17-1/2 (7,9)
7-3/4 to 9 (19,7-22,9)
2
9 (22,9)
1/0
17-1/2 (7,9)
9-1/4 to 12-1/2 (23,5-31,8)
2-1/2
12 (30,5)
4/0
30 (13,6)
12-3/4 to 15-1/2
3
15-1/2 (39,4)
4/0
30 (13,6)
15-3/4 to 19 (40,0-48,3)
3-1/2
18-1/2 (46,9)
4/0
30 (13,6)
19-1/4 to 22 (48,9-55,9)
4
21-1/2 (54,6)
5/0
35 (15,9)
22-1/4 to 26 (56,5-66,0)
4-1/2
25-3/4 (65,4)
5/0
35 (15,9)
26-1/4 to 30 (66,7-76,2)
5
30 (76,2)
5/0
35 (15,9)
30 to 36 (76,2-91,4)
5**
30 (76,2)
5/0
35 (15,9)
................**Special Attachment Clamps

Table (1)
CHAINWHEEL DIMENSIONS
WHEEL SIZE #
0
1
1-1/2
2
2-1/2
A - Overall Hieght in (CM)*
4-5/8 (11,75)
6-3/8 (16,19)
7-3/4 (19,69)
10-1/2 (26,67)
12-1/2 (31,75)
B - Inner Bolt Circle
1-1/2 (3,81)
2-1/2 (6,35)
3-1/2 (8,89)
4-1/2 (11,43)
5-1/2 (13,97)
C - Outer Bolt Circle
1-7/8 (4,76)
3-1/2 (8,89)
5 (12,7)
6-5/8 (16,83)
9-1/4 (23,50)
D - Hub Opening (DIA)
1/2 (1,27)
7/8 (2,22)
1 (2,54)
2-1/8 (5,39)
2-1/8 (5,39)
E - Slot Size (WIDTH)
1-5/16 (7,94)
3/8 (9,525)
3/8 (9,525)
3/8 (9,525)
7/16 (11,116)
F- Rear Opening
3/4 (1,91)
1-1/2 (3,81)
1-7/8 (4,763)
3-1/8 (7,94)
3-1/2 (8,89)
G- Hub Depth
 (SHOULDER TO REAR)
1-1/8 (2,86)
1-1/2 (3,81)
1-7/16 (3,65)
1-3/8 (3,49)
1-3/4 (4,45)
H- Rim Thickness
7/8 (2,22)
1-1/8 (2,86)
1-1/8 (2,86)
1-1/8 (2,86)
1-1/4 (3,18)
 I - Overall Depth
1-3/4 (4,45)
2-1/4 (5,72)
2-3/8 (6,03)
2-3/8 (6,03)
2-5/8 (6,67)
.............*All Dimensions are in "IN (CM)"
.
.
Table (2)
CHAINWHEEL DIMENSIONS
WHEEL SIZE #
3
3-1/2
4
4-1/2
5
A - Overall Hieght in (CM)*
15-1/2 (39,37)
18-1/2 (46,99)
21-1/2 (54,61)
25-3/4 (65,41)
30-1/4 (76,84)
B - Inner Bolt Circle
8-1/2 (21,59)
11-1/2 (29,21)
11-1/2 (29,21)
14-1/2 (36,83)
18-3/4 (47,63)
C - Outer Bolt Circle
12-3/8 (31,43)
15-1/2 (39,37)
17-3/4 (45,08)
21-1/4 (53,98)
25-1/4 (65,14)
D - Hub Opening (DIA)
2-1/8 (5,39)
3 (7,62)
3 (7,62)
3 (7,62)
3 (7,62)
E - Slot Size (WIDTH)
7/16 (11,116)
7/16 (11,116)
5/8 (15,875)
5/8 (15,875)
5/8 (15,875)
F- Rear Opening
3-1/2 (8,89)
4-7/8 (12,38)
4-7/8 (12,38)
4-5/8 (11,75)
4-3/4 (12,07)
G- Hub Depth  (Sh. to Rear)
1-7/8 (4,76)
1-7/8 (4,76)
1-7/8 (4,76)
1-7/8 (4,76)
2 (5,08)
H- Rim Thickness
1-1/4 (3,18)
1-1/4 (3,18)
1-1/2 (3,81)
1-1/2 (3,81)
1-1/2 (3,81)
 I - Overall Depth
2-5/8 (6,67)
3-1/8 (7,94)
3-1/8 (7,94)
3-1/8 (7,94)
3-1/8 (7,94)
............*All Dimensions are in "IN (CM)"
.

.TYPICAL SPECIFICATIONS:
Approved chainwheel operators shall be manufactured by Babbitt Steam Specialty Co. and shall include chainwheel and chain guide for ___ inch diameter valve handwheel. Chainwheel shall be made of (cast iron/ductile iron/aluminum/bronze. Rim shall contain as an integral part of the casting a groove into which the chain guide attaches. Chain guides shall be made of (Malleable iron/aluminum/bronze). Chainwheels shall be adjustable an detachable, furnished complete with (steel/stainless steel) attachment sets for attachment of chainwheel to valve handwheel. Units shall be coated with (black enamel, galvanizing, "Teflon"*, epoxy or ____________ ) to meet manufacturer's specifications.
.
Operators shall also be furnished with ____ feet of rustproof, lock-link, (hot dipped galvanized/spark-resistant brass/stainless steel) chain. Ductile iron units (shall be/shall not be) Babbitt "Hammer-blow" configuration. Chainwheel operators (shall be/shall not be) Safety Wheel configuration.
.
.*Registered trademark for fluoropolymer resins, films and fibers made by Du Pont.
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