Step 8 · Tighten the Coupling Bands to Spec
This step is critical for a long-lasting, leak-proof seal. Using a torque wrench fitted with the correct size socket (usually 5/16" or 8mm), tighten the stainless steel band clamps. Refer to the coupling itself for the manufacturer's recommended torque specification, which is typically 60 inch-pounds (in-lbs). Tighten the clamps in an alternating pattern to apply even pressure across the gasket. Continue tightening until your torque wrench clicks, indicating you have reached the specified torque. Do not guess or simply tighten until it feels 'tight enough,' as this can lead to leaks or damage.