The maximum tightening torque in the band specification table is guaranteed by the manufacturer. Exceeding it may cause damage or the band tightening function to deteriorate. There is no proper torque value. There are many hose hardnesses, wall thicknesses and coupling types. Setting up is difficult as it depends on which part of the barb to be attached.
To solve such issues, we offer special couplings for tightening cap nuts called TOYOCONNECTOR that do not require torque management.