English Units* Standard Model Torque (lbf-in) = Tangential Force (lbf) x Disc Friction Radius (in) Disc Friction Radius (in) = Disc Diameter (in) ÷ 2 - 1.25 (in) Tangential Force (lbf)= Adjustable - see table Heavy-Spring Model Torque (lbf-in) = Tangential Force (lbf) x Disc Friction Radius (in) Disc Friction Radius (in) = Disc Diameter (in) ÷ 2 - 1.25 (in) Tangential Force (lbf) = 22,000 (lbf) | # of Turns of Spring Retaining Cap | Tangential Force (lbf) | Release Pressure (psi) | | 0 | 0 | 0 | | 1 | 2750 | 400 | | 2 | 6600 | 600 | | 3 | 9100 | 800 | | 4 | 10,800 | 950 | | 5 | 13,100 | 1100 | | 6 | 14,900 | 1250 |
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