CL Series Clamp-On Chain Wheels

Valves aren’t always situated in easy to access locations. Often, gaining access to open or close a valve necessitates dangerous climbing or manoeuvring. Our CL Series Chain Wheel can be installed in minutes and provides an easy, inexpensive way to ensure employee safety and effective valve operation. Opening and closing valves becomes as easy as standing at ground level and simply pulling the chain to operate the chain wheel above.

  • Ductile Iron Clamp-on Chain Sprocket fits hand wheel sizes from 2 to 40 inches in diameter
  • Clamps on to existing hand wheel for safe, effective manual valve operation
  • All units come complete with sprocket wheel, chain guide, set collar, zinc plated hardware
  • All CL Series wheels, C30 and C40 sizes are also available in galvanized

When ordering, provide diameter of existing hand wheel and length of chain required.

Model No. For Use With Valve Hand Wheel Diameter Weight kgs (lbs) Chain & Roto Link Size Additional Chain Needed for Loop Chain Weight Per m. RCK Safety Cable Kit
CL4 50 mm – 102 mm
(2”-4”)
.91 kg
(2 lbs)
#2 305 mm
(1 ft.)
0.146 kg
(0.32 lbs)
RCK 3/16
CL6 108 mm – 146 mm
(4 ¼” – 5 ¾”)
2.72 kg
(6 lbs)
#2 305 mm
(1 ft.)
0.146 kg
(0.32 lbs)
RCK 3/16
CL7.5 152 mm – 190 mm
(6” – 7 ½”)
3.17 kg
(7 lbs)
1/0 610 mm
(2 ft.)
0.253 kg
(0.56 lbs)
RCK 3/16
CL9 197 mm – 229 mm
(7 ¾” – 9”)
4.08 kg
(9 lbs)
1/0 610 mm
(2 ft.)
0.253 kg
(0.56 lbs)
RCK 3/16
CL12 235 mm – 318 mm
(9 ¼” – 12 ½”)
6.80 kg
(15 lbs)
1/0 914 mm
(3 ft.)
0.253 kg
(0.56 lbs)
RCK 3/16
CL15 324 mm – 394 mm
(12 ¾” – 15 ½”)
9.52 kg
(21 lbs)
4/0 1219 mm
(4 ft.)
0.461 kg
(1.02 lbs)
RCK 3/16
CL18 400 mm – 483 mm
(15 3/4” – 19”)
12.70 kg
(28 lbs)
4/0 1219 mm
(4 ft.)
0.461 kg
(1.02 lbs)
RCK 1/4
CL21 489 mm – 559 mm
(19 ¼” – 22”)
17.24 kg
(38 lbs)
5/0 1524 mm
(5 ft.)
0.521 kg
(1.15 lbs)
RCK 1/4
CL24 565 mm – 660 mm
(22 ¼” – 26”)
22.22 kg
(49 lbs)
5/0 1829 mm
(6 ft.)
0.521 kg
(1.15 lbs)
RCK 1/4
C30 660 mm – 813 mm
(26” – 32”)
44.45 kg
(98 lbs)
5/0 2438 mm
(8 ft.)
0.521 kg
(1.15 lbs)
RCK 5/16
C40 813 mm – 1016 mm
(32” – 40”)
66.22 kg
(146 lbs)
5/0 3353 mm
(11 ft.)
0.521 kg
(1.15 lbs)
RCK 5/16

CL Series Clamp On Installation Instructions PDF – View | Download
CL4 Series Clamp On Installation Instructions PDF – View | Download
C Series (C30 & C40 only) Clamp On Installation Instructions PDF- View | Download

CL Series Technical Data Sheet PDF – View | Download
C Series (C30 & C40 only) Technical Data Sheet PDF – View | Download

CAUTION:

  1. Whenever a chain wheel is installed, provision must be made to KEEP THE VALVE HANDWHEEL RETAINING NUT FROM BACKING OFF THE STEM. This best done by installing a SET SCREW that secures the nut to the stem.
  2. All chain wheel installations, regardless of age, must be regularly inspected as part of the user’s Safety/Maintenance Procedures. Set screws and other threaded fasteners MUST be secure and tight.
  3. As an additional safeguard, Roto Hammer strongly recommends that ALL chain wheels be fitted with an appropriately sized Roto Hammer RCK Safety Cable Kit available from H N Supplies.