Answer:
The torque required for the proper seal using the Universal Sure-Seal Clamp, will vary.
Generally, each application will require the first time user to evaluate the connection after the installation for the proper seal and the torque required to attain that seal. Once the proper seal has been attained, the torque value required to achieve the seal will be constant for other joints using the same material for the connections.
The torque value applied to a rigid steel tube to rigid steel tube connection will range from 35 to 40 ft. pounds. For a rigid steel tube to a flexible steel tube connection the torque required will be the same, however may be higher depending on weather material is carbon steel or stainless steel.
The sure-seal clamp has been tested to a much higher torque limit than would be required to seal a typical exhaust joint connection, therefore, it should be known to the installer that the clamp will not fail if a higher torque value than noted above is required to seal a particular joint. The Universal Sure-Seal Clamp is a tough heavy-duty clamp engineered for the tough-to-seal applications.
The Universal Sure-Seal Clamp has been designed to last the life of the exhaust system, while some people look at the clamp as not having serviceability, the interesting point is once the Universal Sure-Seal Clamp has been installed, you do not have the serviceability issues. 99% of the time a band clamp is being replaced, is because of the clamp itself has failed, not the exhaust joint.
To install the clamp, slide the clamp on the joint to be made making sure the ring closest to the end of the connection is approximately 1/4"-1/2" back from the end of the tube or flex. Locate the fastener and nut assembly between the notches, if the tube has notches, if the tube has no notches, locate the clamp anywhere on the circumference that will be convenient for the tool used for the installation. It is highly recommended that a air wrench or a long handled wrench be used for tightening the nut, as the all metal prevailing torque locking flange nut may be difficult to tighten once the clamp is securely in place. The all metal locking flange nut provides the clamp with a secure and constant vibration-proof seal for the life of joint connection.