The Power Wrench is designed to be the ideal tool for quick opening and closing of manual valves. A striking example of the tool's benefits is provided in a refinery where Power Wrench is used to ensure quick operation of a vitally important manual bypass valve on a filter system.
The refinery pumps water from a nearby river into one of their cooling systems. In order to prevent all kinds of debris (pieces of nets, plastic, fish, shells) from entering the cooling system, a filter is used. When the filter gets obstructed with debris, a bypass valve needs to be opened quickly (within 5 to 10 min) to ensure continuous availability of fresh cooling water.
The vitally important bypass valve has to be opened within 10 min to avoid disastrous consequences for the entire production process.
The large 36-in. gate valve was initially equipped with a 1:20 ratio gearbox in order to avoid user fatigue and injuries related to operating large manual valves. With the gearbox in place, 80x20 rotations were needed to fully open or close the valve. This resulted in opening times largely exceeding 10 min.
To guarantee fast manual operation of the valve without using the gearbox, Netherlocks Power Wrench is now successfully being applied. It allows the valve to be operated fast (within 2 min) while at the same time avoiding strained backs, sore muscles, and user fatigue. Complete Power Wrench information is yours free upon request.