Chain Operated Model |
Handwheel Operated Model |
| For valves that tend to stick or are otherwise difficult to operate, or in those cases where fail-safe operation is critical, the RotoHammer M-Series Impact Operator is recommended. Its function is to deliver a quick measured blow, similar to that of a hammer striking an anvil, to either open or close the valve. M-Series models may be chain or handwheel operated (as shown above). Clamp-on or direct mount (adapter) versions are available. | |
|
Principle Of Operation Chain Operated Model |
 |
Shown: M-12 Universal Clamp-On
Chain Wheel Actuator |
|
A |
Hammer (Chain Operated) |
|
B |
Hammer Lug (shown - 1 of 2) |
|
C |
Chain Guide |
|
D |
Anvil |
|
E |
Mounting Brackets |
|
F |
Valve Wheel (OEM) |
|
G |
Valve |
|
| Depending on the style chosen, i.e., Universal Clamp-On or Direct Mount Adapter, the Anvil (D) is attached to the valve's handwheel or to the adapter plate replacing the handwheel. Using either the hand or chain model, the operator rotates the hammer (A) which is free to move over a 180-degree arc. The hammer (A) will stop when one of its two opposing lugs (B) strikes the stationary anvil (D). AT THE MOMENT OF IMPACT THE TORQUE(FORCE) REQUIRED TO EITHER SEAT OR UNSEAT THE VALVE IS INSTANTANEOUSLY APPLIED. | |
Sizing: M Series Clamp-On Impact
(Hammer Blow) Actuator |
|
Roto Hammer
Model |
M9 |
M12 |
M15 |
M18 |
M24 |
|
Valve Wheel Size |
7"-9.75"
(178mm- 248mm) |
10"-12.75"
(254mm- 324mm) |
13"-16.75"
(330mm- 425mm) |
17"-19.5"
(432mm- 495mm) |
20"-25"
(508mm- 635mm) |
|
Domestic
Shipping Weight |
25 lbs.
(9.3 kg) |
48 lbs.
(17.92 kg) |
68 lbs.
(25.38 kg) |
85 lbs.
(31.73 kg) |
117 lbs.
(43.67 kg) |
| Galvanized Chain |
|
Size |
|
|
|
|
|
|
Additional Chain for Loop |
2' |
3' |
4' |
4' |
6' |
|
Weight/Ft. |
.17 |
.31 |
.31 |
.31 |
.35 | |
| Sizing:M Series Direct Mount Impact (Adapter Style) (Hammer Blow) Actuator |
|
Roto Hammer
Model |
|
|
|
|
|
|
|
Valve Wheel Size |
7"-9.75"
(178mm- 248mm) |
10"-12.75"
(254mm- 324mm) |
13"-16.75"
(330mm- 425mm) |
17"-19.5"
(432mm- 495mm) |
20"-28"
(508mm- 711mm) |
30" or larger
(762mm) |
|
Domestic
Shipping Weight |
27 lbs.
(12.15 kg) |
52 lbs.
(23.4 kg) |
72 lbs.
(32.4 kg) |
108 lbs.
(48.6 kg) |
137 lbs.
(61.65 kg) |
198 lbs.
(89.1 kg) |
| Galvanized Chain |
|
Size |
|
|
|
|
|
|
|
Additional Chain for Loop |
2' |
3' |
4' |
4' |
6' |
8' |
|
Weight/Ft. |
.17 |
.17 |
.31 |
.31 |
.35 |
.35 | |
|
Ordering Information Needed |
|
Valve |
Manufacturer, Type, Model Size, Handwheel Size |
|
Adapter Style |
Complete Adapter Plate Data (consult adapter plate configurations and measurements on Floor Stand page) | |
|
