In many cases, using a portable valve actuator might be the better option for opening large manual valves.
Saeco Gaggia - SBS Crema Valve Assy. for Odea, Talea, Primea
Safe and effortless operation of large manual valves
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SuperCompact control valves and linear actuators - Belimo
globalizeme, Author at Sofis valve operation - Page 4 of 5
Valve wrench tool - Sofis valve operation
Portable valve actuator Power Wrench - Sofis valve operation
Pigging Valves Market Analysis, Growth Opportunities, Trends, Size
Valve operation - Sofis valve operation
Solutions - Sofis valve operation
You can use your service wrench to open these gas valves. Total
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Valve wrench tool - Sofis valve operation
Globe valves with linear actuators - Betec Controls