Pipelines still present a lot of hand operated valves. Did anyone solve this extenuating and tyring hand operation by a sort of practical "power kit"?
The answer is yes, and already commercially solved (within limits).
a) Carry or portable electrical powered actuators (Net or battery) (At least two or more producers in Europe (Germany?). Limited by price, weight and abillity to transfer torque from ball valves or gearboxes operated to other objects than the operators themselves. (Valves for larger streetmains)
b) By using (where suitable) pneumatic actuators (without pressurized air connected from pneumatic permanent net) with carry or portable pneumatic bottels with mounted pressure reduction stations on the portable unit for operation. (German waste-water treatment plants for knife-gate valves)

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