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Automax PMV WS/WM Series Switchbox

WS/WM series switchbox is a simple switchbox with many features.

The WS/WM Series UltraSwitch™ provides cost efficient, accurate and reliable position signaling. The compact enclosure is offered in aluminum or corrosion resistant engineered resin and is provided with multiple switch options.

The range covers domed and flat indicators as well as covers without indicator for a lower profile. The WS/WM is designed to be directly and easily mounted onto actuators for both rotary and linear indication.

It is designed to meet IP66/67 and NEMA Type 4X standards and is offered both for Intrinsically Safe and Non-Incendive hazardous locations.


For price and availability or further information on Valves or any Automation Packages, please contact

Automax W Series Aluminium Switchbox

Automax W series switchbox is designed to be directly and easily mounted onto actuators having connections according to Namur VDI/VDE 3845, in order to reduce switchbox/actuator overall dimensions.

Automax X Series Explosion Proof Ultra Switchbox

The Flowserve Automax X Series UltraSwitch™ is a globally certified explosion-proof/flame-proof position indicator. The X Series features Quick-Set ™ cams for easy, tool-free adjustment of sensing position. The UltraDome™ visual indicator provides for clear position viewing, while a lower assembly profile can be achieved with a flat-top enclosure. Many switch options can be installed to meet specific application needs. Each integral switch is pre-wired to a multi-point terminal block. A minimum of two spare terminals are provided for external accessories to eliminate costly junction boxes. The enclosure includes two2 x M25 x 1,5. conduit entries for easy wiring access

Flowserve Apex 5000 Pneumatic Positioner

The Automax Apex 5000 Pneumatic Positioner provides accurate valve positioning with advanced features. It may be used with 3-15 psi pneumatic control signals, or fitted with a current-to-pressure tranducers for 4-20 mA signal input . The Automax Apex is available with many options including: limit switches, position feedback transmitter, speed controls, NAMUR shaft, and our Pharos visual position indicator.

Please Note: This product is now obsolete and has been superseded by the Automax Apex 7000 Pneumatic Positioner.


For a quotation on a replacement Apex 7000 Positioner or further information on Valves or any Automation Packages, please contact

Flowserve Apex 7000 Pneumatic Positioner

The Apex 7000 Pneumatic Positioner provides accurate valve positioning for rotary and linear actuators in either double acting or spring return configurations. It may be used with 3-15 psi pneumatic control signals, or fitted with current-to-pressure transducers 4-20 mA signal outputs. The compact, ligthweight positioner also conforms to NAMUR VDI/VDE 3845 mounting standards and features a UltraDome visual position indicator.

  • Corrosion resistant materials
  • Captive cover screws
  • Multiple cam options
  • Compact design
  • Low profile visual indicator
  • Quick and simple calibration


For price and availability or further information on Valves or any Automation Packages, please contact

Flowserve Apex 8000 Pneumatic Positioner

The Flowserve Automax APEX 8000 positioner provides outstanding control for a wide range of valves and dampers. The APEX 8000 High-performance positioners feature a unique two-stage stage pneumatic relay that provides un-rivaled performance. This two-stage relay allows end users exceptional control traditionally found only in digital positioners.

The Flowserve APEX 8000 line also utilizes a modular design that allows maximum flexibility for the end user. The high visibility UltraDome Indicator allows plant personnel to quickly and easily identify valve status. Multiple current-to-pressure (I-P) options are available to convert the APEX pneumatic positioner into a 4-20mA electro-pneumatic positioner. The I-P's are available as a stand alone item and are globally certified for hazardous locations applications as well as weatherproof and intrinsically safe installations.

The Flowserve Apex 8000 positioners are easily calibrated with minimal tools required and provide years of accurate, reliable service. The non-interactive zero and span calibration permits quick and easy calibration. A unique gain adjustment allows the user to better match the postioner to actuator dynamics. Multiple cam options allow the user to select from a wide range of positioning characteristics: standard 3-15 psi, split ranging, 180° direct and reverse acting are easily accomplished with the standard cam configuration. Other options are available upon request.

In addition, the Flowserve APEX 8000 allows options for transmitters and end of travel limit switches to be mounted internally. (General purpose and Division 2 applications only). For Division 1 applications, the Flowserve APEX 8000 is available with a top-mounted UltraSwitch option for discrete or analog feedback.

For price and availability or further information on Valves or any Automation Packages, please contact

Flowserve Automax RG Steel Scotch Yoke Actuator

Double Acting or Spring Return Scotch Yoke Actuator

The Automax RG Series replaces the Automax R Series and Automax RM Series, The Automax RG provides up to 248,000 Nm of heavy-duty Scotch yoke torque. Enhanced performance is achieved by using a superior yoke support system that significantly reduces transverse loads.

The RG series scotch yoke actuator is available in Double-Acting, Spring Return and Canted Yoke designs. Torques up to 2.2 million in-lbs in eight models.

The RG series Spring Return Actuators, in contrast with R-series, use Pull-to-Compress the spring design. Has torque module with symmetrical or canted yokes and override options: Direct Drive Jackscrew, Bevel Gear Jackscrew or Hydraulic Override further providing flexible construction.

Product Literature: Automax RG Series Heavy Duty Actuator.pdf

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Flowserve Automax SuperNova 180° Actuator

Flowserve Automax SuperNova 180 Degree Actuators are available in the same models and with the same torque outputs as the standard Automax SuperNova Double Acting actuators S063 through to S200 Sizing. The integral mechanical, end-of-stroke travel adjustment is for one direction only. As options, travel stops can be furnished for less than 180° travel and an additional travel stop for the other direction can be provided in the valve actuator adaption.

Automax has developed economical control circuits and devices to actuate multiport valves both 2 position (0°,180°) and 3 position (0°, 90°,180°) utilizing the Flowserve Automax UltraSwitch.


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Flowserve Automax Supernova Pneumatic Rack and Pinion Actuator

The Flowserve Automax Supernova Pneumatic Rack and Pinion Actuator is the latest development of the product, which has won worldwide praise for its reliability, versatility and safety. Rugged, yet compact construction combined with new technical solutions make this product extremely reliable & Adaptable in the severest of operating conditions.


The rotational movement of a rack and pinion actuator is accomplished via linear motion and two gears. A circular gear, referred to a “pinion” engages the teeth of a linear gear “bar” referred to as the “rack”.

Pneumatic actuators use pistons that are attached to the rack. As air or spring power is applied the to pistons, the rack is “pushed” inward or “pulled” outward. This linear movement is transferred to the rotary pinion gear (in both directions) providing bi-directional rotation.

rack and pinion
Visual of rack and pinion
(courtesy of Wikipedia)


Rack and pinion actuators pistons can be pressurized with air, gas, or oil to provide the linear the movement that spins the pinion gear. To rotate the pinion gear in the opposite direction, the air, gas, or oil must be redirected to the other sides of the piston, or use coil springs as the energy source for rotation. Rack and pinion actuators using springs are referred to as “spring-return actuators”. Actuators that rely on opposite side pressurization of the rack are referred to as “direct acting”.

Most actuators are designed for 100-degree travel with clockwise and counterclockwise travel adjustment for open and closed positions. World standard ISO mounting pad is standard to the Automax SuperNova Actuator to provide ease and flexibility in direct valve installation.

NAMUR mounting dimensions on actuator pneumatic port connections and on actuator accessory holes and drive shaft are also common design features to the Automax SuperNova Actuator to make adding pilot valves and accessories more convenient.

actuated valve
Flowserve Automax SuperNova Rack and Pinion Actuator, With Automax Solenoid Valve and Automax XML Series Limit Switch Box.


The Automax SuperNova pneumatic rack and pinion actuators are compact and save space. They are reliable, durable and provide a excellent life cycle.

For price and availability or further information on any pneumatic or electric valve automation project, please contact

Flowserve Automax SXL Stainless Steel Actuator

SXL Series utilizes a 316 Series stainless steel body and is ideal for use in corrosive environments. The SXL Series is available in both Double Acting and Spring Return versions with a maximum double acting torque output of 7,279 in-lbs. It can be supplied with stainless steel or aluminum pistons and springs per customer requirements and is also available with optional polished finishes for sanitary applications.


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Flowserve PMV EP5 Electro Pneumatic Positioner

The EP5 electropneumatic positioner is adapted from the PMV P5 pneumatic positioner. This compact and sturdy unit is designed for maximum performance in all types of environments. The EP5 is available in Standard, Intrinsically Safe and Explosion Proof versions. A modular feedback unit F5 allows for the addition of limit switches and/or position transmitters, without additional mounting brackets.

Other features include: Replaceable filter, gauge ports, dampers, tapped exhaust port for venting of supply media, external zero adjustment and completely sealed cover. ATEX; CSA & FM approvals.


For price and availability or further information on Valves or any Automation Packages, please contact