D86 Valve Overtorque Protectors

Aunspach, overtorque protector, d86, Acrodyne, valve protectorManufacturer: Aunspach Controls Company

Model D86 Valve Overtorque Protectors TM protect water distribution and other valves from damage caused by excess operating torque. The high costs of excavation, valve repair or replacement, system downtime and traffic disruption are eliminated.

Application
Model D86 units are permanently mounted on the valve-operating nut. Operating torque is applied to the Model D86 2-inch AWWA operating nut and then transmitted thru the D86 to the valve. When excessive torque is applied the D86 drive will disengage and prevent valve damage.

Damage is prevented at both ends and through the entire valve stroke. Re- engagement is automatic and operation is the same in either direction of rotation.

Standard Models

Model D86-250

  • Operating End Connection: 2-inch AWWA nut
  • Mounting End Connection: Socket to fit over 2-inch AWWA nut
  • Standard trip torque setting: 200 lbft
  • Available trip torque settings: 50 to 250 lbft
  • Standard surface finish: Black epoxy

Model D86-500

  • Operating End Connection: 2-inch AWWA nut
  • Mounting End Connection: Socket to fit over 2-inch AWWA nut
  • Standard trip torque Setting: 400 lbft
  • Available trip torque settings: 100 to 500 lbft
  • Standard surface finish: Black epoxy

Mounting

  • To mount: place the D86 socket end over the valve operating nut and tighten the two stainless steel mounting screws.

Construction

  • The Model D86 mechanism is permanently lubricated and hermetically sealed inside a rugged cast-iron housing that is corrosion protected by epoxy coating inside and outside.

Maintenance

  • No maintenance is required.

Special Designs
Special designs and modifications are available at Acrodyne upon request.

PDF Download

D86 250 Technical Manual (1.4Mb)

D87 Technical Manual (128kb)

D87 High Temp Manual (792kb)

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