Biffi HP 15, HP 25, HP 30, HP 60, HP 65, HP 80 High Pressure Actuator Operation and Maintenance Instructions

Biffi Morin HP Model High Pressure Actuators are designed for 'on-off' or modulating control of any quarter-turn ball, butterfly, rotary plug or damper style valve application. These actuators are available with drilled and tapped ports to accept any proximity switches with 5/8-18 UNF, 12-1 mm and 18-1 mm threads. The actuator can be mounted parallel or perpendicular to pipeline. The actuator can be installed in any convenient position including vertical, horizontal or upside down.

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Biffi Morin HP Model High Pressure Actuators Operation and Maintenance Instructions | Manualzz

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Key Features

  • On-off or modulating control
  • Quarter-turn ball, butterfly, rotary plug or damper style valve
  • Factory lubricated
  • Parallel or perpendicular mounting
  • Vertical, horizontal or upside down installation
  • Proximity switch ports
  • Spring conversion
  • Fail open or fail closed
  • Manual handpump override
  • Spring return

Frequently asked questions

How do I remove the actuator from the valve?

Loosen the bracket to actuator bolts to hand tight position. Physically shift actuator back and forth to be sure there is no strain on the bracket bolts. Once there is no pressure or spring load remaining on the actuator, remove bolts and actuator from valve. If the valve is frozen or locked in place, replace HP adjustment screw on end of actuator opposite spring end with a length of 'all thread' rod and turn clockwise until it contacts the piston. This will safely secure the piston and spring assembly and allow actuator removal. Be sure to carefully remove 'all thread' rod prior to actuator disassembly.

What are the safety precautions when installing or servicing the actuator?

Read the entire operation and maintenance instruction manual before installing, operating, or servicing the actuator. Inspect the actuator regularly for signs of corrosion and repair immediately. Always remove pressure and disconnect the power supply before servicing the actuator. Keep hands and feet clear of an actuator that is in service. Do not disassemble the actuator without reviewing the disassembly procedure in this manual first. This is particularly important that the proper procedure be followed to avoid injury from internal spring power. Before attempting to remove an actuator from the equipment it is assembled to, always be sure that spring is in the 'failed' or extended position. Remove any accessory equipment that may cause the spring to be cocked. If there is any doubt that the actuator is in the 'failed' position, remove the air pressure from the actuator and install a long threaded bolt in place of both travel stops. Once the actuator has been removed from the equipment the long bolts must be removed first before the actuator can be disassembled. Repair or replace a damaged actuator immediately. Inspect the vent valves on models HP60-HP80 during regular maintenance periods. The valves should allow leaking fluids to escape but prevent contaminates from the surrounding atmosphere from entering the actuator. Fluid leaking from the lower valve indicates a valve stem seal leak. Fluid leaking from the upper valve indicates a leaking cylinder seal. If leakage is observed from either valve disassemble and repair the source immediately. Never replace the vent valves with plugs. Operate the actuators within the pressure and temperature ranges specified on the nameplate. Otherwise the actuator life may be reduced or serious safety hazards may develop.

What is the recommended proof test interval for actuators used in emergency shut-down service or IEC 61508 safety integrity level (SIL) compliant installations?

Proof testing of the actuator shall be performed on the interval determined per IEC 61508 / IEC 61511 requirements. A suggested proof test is included in report MOR 12\04-064 R001 V1 R1 FMEDA. No special tools are needed. The report includes the achieved proof test coverage.
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