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The need to control process and vent valves from a remote location makes air operated (pneumatic) valves a vital component to many process applications.

All MAN Series needle valves with MPI™ connections are available with Fail Open (-FO) or Fail Closed (-FC) Piston Type Actuators. Four sizes of air actuators (Medium, Heavy, Extra Heavy-Single Stage, and Extra Heavy-Two Stage) are offered to meet the service requirements of Parker MAN Series Needle Valves. Both Fail Closed (normally closed) and Fail Open (normally open) designs have overlapping piston sizes to help meet efficiency or economical requirements.

Actuators are available for Outdoor Service. These operators provide corrosion resistant components and prevent the ingress of outside elements and moisture. Limit Switch position location is available upon request.

Piston type air-operated valves offer a unique, reliable design providing for a long and dependable life. These valves are more compact than diaphragm valves and are appropriate for applications such as high-flow gas and liquid delivery systems to reactors and mixer/vaporizers.

Note:
Air inlet for Fail Close operation is located in the back, opposite the front of valve. For other locations, consult factory. Holes supplied in yoke bracket for mounting.
Fail Close = Air-to-Open
Fail Open = Air-to-Close
Unit of Measure

Duty Rating

 N/A Extra Heavy Single Stage

Type

 N/A Fail Open

Service

 N/A Indoor

Max. Allowable Working Pressure

 N/A 100 psi

Approx. Air Usage

 N/A .33 scfm

Area of Piston

 N/A 56 in²

A

 N/A 8.60 in

B

 N/A 9.40 in

Features and Benefits

 N/A
  • Fail Open or Fail Close with spring return or Dual Acting (air controls both directions)
  • Piston actuator sizing incorporates maximum allowable air pressure of 100 psi
  • Yoke design for separation of process and air controls
  • Stem Position Indicator is standard
  • Anodized Aluminum Housing (for corrosion and wear resistance)
  • -20°F (-29°C) to 200°F (93°C) ambient temperature range (for operation below 30°F (-1°C) dry air must be used and heat tracing is recommended)
  • Remote position indication options available
  • High actuator cycle life
  • Ease of stem replacement
  • 1/8" NPT air inlet connection standard except Extra Heavy Duty has 3/8" NPT
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    Remote On-Off

    		 N/A Parker MAN series air-operated needle valves (FC – Fail Close or FO – Fail Open) can be controlled by a 3-way manual air valve or by a low pressure solenoid valve (supplied by others). These can be actuated manually or remotely depending on application requirements.

    Fail Safe control of the actuators is possible through the use of 3-way manual or solenoid operated valve placed in the pneumatic control line to either Fail Open or Fail Closed actuator.

    Remote operation increases personnel safety by eliminating the requirement to move adjacent to High Pressure Piping.

    Please note: Depending on selection of actuator, some applications will require pressure on valve to assist in opening against actuator springs.

    Limit Switch Options

    		 N/A
  • Mechanical Weather-proof
  • Mechanical Explosion-proof
  • Proximity, Intrinsically Safe
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