Showing posts with label South Dakota. Show all posts
Showing posts with label South Dakota. Show all posts

Thursday, October 11, 2018

Full Service Valve Automation


From simple pneumatically or electrically actuated valves, to fully automated critical valve systems, Swanson Flo delivers tested, certified, and extremely reliable product every time. Actuated valve assemblies precisely engineered for the best fit, highest performance, and optimal life.

With decades of combined experience and knowledge, Swanson Flo technicians match state-of-art components with best-in-class manufacturers and deliver carefully crafted valve packages.

Swanson Flo customers always receive the highest quality and best value possible. Their strong reputation was built upon:
  • The largest, most comprehensive facility in the Midwest.
  • In-house capabilities for all electric, pneumatic and electro-hydraulic actuators.
  • Experienced design engineering and fabrication.
  • Support for assembly of all valve, actuator, monitor and positioner technologies.
  • Complete solution for testing and serialization.
800-288-7926

Saturday, September 29, 2018

The Basics of Control Valve Actuators

Flowserve Valtek Control Valve
Control Valve
(Flowserve Valtek)
Understanding control valve operation is very important to for anyone considering a career in process engineering, in plant maintenance, or process design engineering.

Control valve actuators control fluid in a pipe by varying the orifice size through which the fluid flows. Control valves contain two major components: the valve body and the valve actuator. The valve body provides the fluid connections and a movable restrictor comprised of a valve stem and plug that is in contact with the fluid that varies the flow. The valve actuator is the component that physically moves the restrictor to vary the fluid flow.

The video below introduces the viewer to basic control valve operation concepts and the basic types of actuators.

Monday, September 24, 2018

Worcester Controls Valve and Actuator Product Catalog

Here is a new Product Catalog for Flowserve Worcester Control industrial ball valves, pneumatic actuators and electric actuators, courtesy of Swanson Flo.  These include standard flanged ball valves, ANSI and DIN specifications in reduced and full bore, three-piece valves for cryogenic, high pressure, steam, diverter or sampling duty, high integrity valves, multi-way designs, modulating controls or customized solutions.

Monday, September 17, 2018

Process Instrumentation for the Chemical Industry

Process Instrumentation for the Chemical Industry
Process Instrumentation for the Chemical Industry (Foxboro - Schneider Electric)
From petrochemicals to agrochemicals, industrial gases to plastics, pigments, and more, the industry that manufactures, processes, transports, and stores thousands of hazardous materials every day requires one thing above all – absolute confidence in the quality, reliability, accuracy, and safety of the devices entrusted with controlling some of the most complex, pressurized, and volatile processes known.

Foxboro’s complete line of robust, field-proven instrumentation provides measurement solutions for temperature, pressure, flow, process analysis, level, and data acquisition. Additionally, our line of valve positioners offers the highest accuracy in the industry.

You may download a PDF version of the Foxboro "Process Instrumentation for the Chemical Industry" brochure here, or view the embedded document below. For more information on Foxboro instrumentation contact Swanson Flo by visiting https://swansonflo.com or by calling 800-288-7926.

Tuesday, August 28, 2018

What Are Cryogenic Ball Valves?

Cryogenic Ball Valve
Cryogenic Ball Valve (Flowserve Worcester)
Cryogenic ball valves are high-performance shutoff valves for intermittent and continuous flow applications with temperatures to -425°F. They are used on tough applications involving all types of cryogens, such as oxygen, hydrogen, methane, ammonia, nitrogen, fluorine, LNG and deuterium.

Cryogenic ball valves include unique features to ensure safety and performance in cryogenic applications. Central to the cryogenic design is a rugged, one-piece, pressure safe stem with a Polyfill thrust bearing and stainless steel split ring. It provides design safety and low operational torque. Polyfill seats give you tight shutoff throughout the temperature range. With an orientation-controlled stem/ball connection and an upstream hole in the ball, you get positive overpressure protection.

Summary of specialized design features:
Brass Cryogenic Ball Valve
Brass Cryogenic Ball Valve
(Flowserve Worcester)
  • Positive Ball Cavity Relief – An upstream relief hole in the ball prevents dangerous overpressure due to thermal expansion. On extended stem valves through 2", a one-piece stem with alignment pin assures proper orientation of the ball.
  • Pressure Safe Stem – Both one-piece and two-piece, assembled inside-the-body stems are safe from blowout and are supported with Polyfill® thrust washers.
  • Zero Leak Packing – Belleville live-loaded TFE packing rings and stem centering followers assure zero leakage through the toughest, high-cycle applications.
  • Effective Bonnet Extensions – The stem extensions of cryogenic valves conform to standard industrial practices. That means wall thickness and lengths that keep heat transfer down, the packing frost-free, operational torques low, and actuators solidly supported.
  • High-Performance/Low-Thermal Stress – The special “part compatibility” design of valve parts, Polyfill seats and body seals assure tight shutoff, zero body leakage and low torque through large thermal excursions from ambient to -425°F.
Cryogenic valves are normally available in four body configuration, in either stainless steel or brass:
  1. Three-piece construction - makes it easy to install, versatile in application and simple to maintain.
  2. The cryogenic diverter valve - accepts media through the bottom inlet port and directs it to one of two side ports.
  3. The wafer design - a flangeless cryogenic valve that mounts between ANSI Class 150 or 300 flanges.
  4. A flanged design - has a body cast with ANSI Class 150 flanges.
Application for cryogenic ball valves:
  • Over-the-Road LNG-LPG Trailers
  • Terminal Unloading Stations
  • High-Purity Cryogenic/Gas Systems
  • LNG Storage and Distribution
  • CO2 and Nitrogen Injection for Enhanced Oil Recovery
  • Over-the-Road CO2, LNG, Food Carriers
  • Petroleum Refining Unleaded Gasoline (Gas Treatment Skids)
  • Lyophilization Systems
  • Air Separation Plants
  • Liquid and Gaseous Oxygen
  • Inerting and Heat Treatment
For more information on cryogenic ball valves, contact Swanson Flo by visiting https://swansonflo.com or by calling 800-288-7926.

Sunday, August 19, 2018

What Are Valve Positioners?

Digital Positioner
Digital Positioner (Valtek)
A valve positioner is used in combination with a valve actuator to precisely position a valve so that optimum flow accuracy may be achieved. The positioner does this by measuring a the process variable, comparing it to a desired condition (set point) and then pneumatically, electrically, or hydraulically changing the valve disc, globe, plug or ball position until the difference between the set point and actual position is zero.

Valve positioners are key elements in a closed loop control system where the final control element is a valve. They assist in maintaining tight control, overcoming the realities of imprecise calibration, differential pressure across the valve, valve wear and a host of other process control challenges.

A valve positioner responds to a signal from some type of master control system, typically a distributed control system (DCS), a programmable logic controller (PLC), or PID controller. The control system reads a signal from a process sensor (flowmeter, temperature sensor, pressure sensor, etc...) and compares that reading to the desired setpoint. A corrective signal, based on the difference,  is provided to the valve positioner which re-adjusts (if necessary) the valve position to bring the system in to equilibrium.

Valve positioners are available with pneumatic, electrical, electro-pneumatic, and digital operation. Here is a brief description of each:

Pneumatic
Pneumatic Positioner
Pneumatic Positioner (Valtek)
Pneumatic positioners receive pneumatic signals (3-15 or 6-30 PSIG). The positioner then throttles supply air to the valve actuator to move the valve to the required position. Pneumatic positioners are intrinsically safe and can provide a large amount of force to close a valve.

Electric
Electric valve positioners receive an electric signal, usually 4-20 mA, 1-5 VDC, 2-10 VCD or 0-10 VDC and generally drive the motors in electric actuators. They perform the same function as pneumatic positioners do, but use electricity instead of air pressure as an input signal.

Electro-Pneumatic
Electro-pneumatic Positioner
(PMV)
Electro-pneumatic valve positioners contain internal I/P (current to pneumatic) modules that converts the electrical input signal to a pneumatic output (4-20 mA to 3-15 PSIG for instance). Very similar to a pneumatic positioner except that its input is electrical.

Valve positioners are used throughout the process industries including power, pharmaceutical, chemicals, oil and gas, food and beverage, pulp and paper, refining and petrochemicals, pipelines, and many other processes.

For more information on valve positioners, contact Swanson Flo by visiting https://swansonflo.com or by calling 800-288-7926.

Thursday, August 9, 2018

Properties of Fluids: The Basics


This video introduces the viewer to basic fluid properties such as viscosity, viscosity index, compressibility, cleanliness, filtration and additives. These basics apply throughout process control, from flow instrumentation to valve automation.

Founded in 1960, Swanson Flo has long maintained our position as an industry leader in process automation with unmatched project success leveraging industry preferred products and services.

https://swansonflow.com
800-288-792

Friday, July 20, 2018

Limitorque Pneumatic Compact Scotch Yoke Actuator Model LPC

Limitorque Pneumatic Compact (LPC)
The Limitorque Pneumatic Compact (LPC) range is a robust, lightweight, modular Scotch yoke design available in both spring return and double acting configurations. It is suitable for actuating ball, butterfly and plug valves or any other quarter-turn application.

LPC compact actuators deliver up to 5500 Nm (4057 ft-lb) of precisely controlled torque. The LPC product range is complementary to the Limitorque LPS heavy-duty pneumatic Scotch yoke actuators.

A similar design philosophy to the heavy-duty LPS was applied to the new LPC range, delivering enhanced performance and high reliability. The LPC is available in standard as well as special material configurations upon request.

For more information, review the embedded document below, or you can download a PDF version of "Limitorque Model LPC Pneumatic Compact Scotch Yoke Actuator" here.

Tuesday, July 10, 2018

Vortex Flowmeters by Schneider Electric / Foxboro

Foxboro Vortex Flowmeters in field
Schneider Electric / Foxboro Vortex flowmeters in field.
Foxboro flowmeters set industry standards in applications requiring accuracy for totalizing and batching in utility metering of fluids. They are ideal for applications within upstream and downstream oil and gas industries, specifically on high-pressure pipeline applications.

Foxboro Vortex Flowmeters
Vortex flowmeter.
Foxboro flowmeters are the highest performing flowmeters on the market, with best-in-class sensing technology. No other competitor's meter can measure accuracy and liquid gas or steam for temperatures up to 800 degrees Fahrenheit. These instruments are designed to be flexible and reliable in harsh process environments. Foxboro vortex flowmeters have unique vortex sensing, with a lifetime warranty, patented algorithms that improve performance and real-world applications. A broad offering of sizes, material, and end connections with the widest flow range available today. Ease of configuration using FTD technology and no moving parts ensures low operating and maintenance costs.

Foxboro vortex transmitters have an on-board LCD indicator configurator for local configuration, and are equipped with Foxboro's patented DirectSense technology, which incorporates the sensor directly into the flow stream to maximize the vortex pull strength. This results in wider rangeability, greater noise immunity, along with unmatched sensitivity. With the Foxboro vortex flowmeter you achieve reliability, repeatability, and a measurement you can trust.
LCD indicator
LCD indicator

For more information on Schneider Electric / Foxboro vortex flowmeters please visit Swanson Flo at https://swansonflow.com or by calling 800-288-7926.

Wednesday, June 27, 2018

A Process Industry Stalwart - The Plug Valve

Flowserve Durco lubricated plug valve
Lubricated plug valve.
(Flowserve Durco)
This article will focus on one of the oldest and most reliable (when properly applied) industrial valve types - the plug valve.

Fluid process control operations commonly employ pumps, piping, tanks and valves as the means of transporting, containing and controlling the fluid movement through a system.

Valves, of which there are many types, provide control over the flow rate, direction and routing of fluids in a processing operation. Flow can be started, stopped or modulated between zero and full rate using a properly sized and configured valve. Some valves enable media flow to be diverted to a selection of outlets, in lieu of a single inlet and outlet pair. Specialized valves regulate inlet or outlet pressure, or prevent fluid flow from going in an undesirable direction. All of these capabilities are packaged into differing valve product offerings that present a very large selection array to a process designer or engineer.

Floserve Durco non-lubricated plug valve
Non-lubricated plug valve.
(Flowserve Durco)
Industrial flow control valve types are generally classified according to the structure or arrangement contained within the valve body that provides obstruction to fluid flow. Some of the common types are ball, butterfly, gate, globe, and plug. Surely, there are more valve types, and this article is not intended to list them all. Some of our previous blogs have discussed selection considerations for gate, ball and butterfly valves.

Plug valves, like ball and butterfly valves, span from fully open to fully closed positions with a shaft rotation of 90 degrees. The “plug” in a plug valve is installed in the flow path within the valve body and rotated by means of a stem or shaft extending to the exterior of the body. Plugs are tapered toward the bottom and are fitted to a seating surface in the valve body cavity that prevents fluid from bypassing the plug. An opening through the plug, the port, can be shaped to provide particular flow characteristics. There are two main types of basic plug, lubricated and non-lubricated. Lubricated plug valves have a cavity into which a sealant is injected. The sealant provides a renewable seal between the plug and the body, prevents internal leakage, and protects the seating surfaces against corrosion. Non-lubricated plug valves utilize an elastomeric body liner or a sleeve in the body cavity that is pressed in to the body of the valve by the plug's wedge-like shape,  with the result of reducing the friction between the plug and the body.

Plug valve considerations:
  • 90 degree rotation from open to closed provides fast operation.
  • With proper configuration, can be well suited for frequent operation.
  • Availability of corrosion resistant liner may provide comparative cost savings because valve body can be constructed of less expensive material.
  • Design is simple and employs a low parts count.
  • Valve can be serviced in place.
  • Generally, low resistance to flow when fully open.
  • Reliable leak-tight service due to tapered plug wedging action, replaceable sleeve, and injection of lubricant in some variants.
  • Potential issues of concern for plug valve application include a short list of items.
  • Higher friction in the plug closure mechanism may require comparatively higher operating torque than other valve types.
  • Without a specially designed plug, generally not well suited for throttling applications.
  • Rapid shutoff delivered by plug design may not be suitable for some applications where hammering may occur.
Share your fluid control application challenges with a valve and automation specialist. Leverage your own knowledge and experience with their product application expertise to develop an effective solution.

Wednesday, June 20, 2018

A Peek Inside a Valtek Mark One Control Valve with Piston Actuator

Valtek Mark One Control ValveThe video below provides a look inside the Flowserve Valtek Mark One control valve and identifies its major components.

The Flowserve Valtek® Mark One globe control valve is designed for liquid and gaseous services, and for permitting easy, fast and inexpensive maintenance.

The spring-cylinder actuated Mark One valve provides stiffness and maintains high positioning accuracy, repeatability, controlled high speed, and faithful response. The Mark One valve handles up to 150 psig supply air and has the thrust to shut off against much higher fluid pressures.

The Mark One valve is designed so the spring, supply air pressure and fluid pressure itself combine to produce exceptionally tight shutoff. A self-aligning seat ring further enhances the shutoff capability of the valve.

https://swansonflo.com
800-288-7926

Friday, June 8, 2018

Jorlon™ Structurally Modified Pure PTFE Diaphragm for Control Valves and Gas Regulators

Jorlon™
Jorlon™ Diaphragm
Jorlon™ is structurally modified pure PTFE. It is manufactured by a proprietary technique where PTFE layers are combined and formed in a unique process to reduce the creep and cold flow associated with conventionally formed solid, or laminated PTFE or Teflon.

Jorlon™ is featured in all of Steriflow's valve product lines:
  • Mark 978 Control Valves
  • JSHM Manual Metering Valve
  • Mark 96 Pressure Regulating Valves
  • Mark 95 Back Pressure Regulating Valves
  • Mark 96A, 96AA, 95A, 95AA Air Loaded Regulators
  • J Series Clean Gas Pressure and Back Pressure Regulating Valves
Lifetime Warranty
Jorlon™ is warranted for a lifetime of use on our Mark 95, Mark 96, Mark 96AA, Mark 95AA regulators, MK978 Series control valves, J-series regulators, and the JSHM metering valve.

Product Applications
JorlonTM has been specified in biopharm applications including WFI, clean steam (up to 100 psig), buffers, acids, cryogenic liquids, clean utility gas, biological intermediates and final process fluids.

Customer Use
Since its inception, thousands of Steriflow valves with Jorlon™ diaphragms have been installed in systems which have been validated by the FDA.

Cycle Testing
Jorlon™ has been tested on a variety of Steriflow control valves on 45 psig (3 bar) continuous steam service to over 1 million full stroke cycles. One of those valves was further tested with an additional 100 Steam and vacuum cycles without failure.

Lab Testing
Lab tests comparing Jorlon™ to 316L diaphragms have shown continued life after exceeding the SST failure cycle count by more than 100 times.

Jorlon™ Material
Jorlon™ has been used by Steriflow for over 15 years. To date, not one valve has been returned due to diaphragm failure when operating within its use parameters. Jorlon™ has been nitrogen pressure tested to over 1200 psi without failure.

Friday, May 25, 2018

Flowserve Control Valve Product Guide (Valtek, Kammer)

Flowserve Control Valve
Flowserve Control Valve
Flowserve general service control valves combine platform standardization, high performance, and simplified maintenance to deliver a lower total cost of ownership.

Flowserve delivers a broad range of general service control valves – linear and rotary – with pressure ratings of ANSI Class 150 to 4500/PN 10 to PN 640. These high-performance control valves offer greater reliability, precision control, and flow capacity, with significantly reduced cavitation, flashing, and noise. Quality production ensures increased process yield and throughput.

Because Flowserve general service control valves are constructed on global platforms using standardized parts and components, up-front engineering is held to a minimum. Simplified operation, maintenance, and service further ensure lower total cost of ownership.

Thursday, May 17, 2018

Wireless Process Control Instrumentation

Wireless Process Control Instrumentation
Wireless Process Control Instrumentation Diagram
Manufacturing plants are continually under tremendous pressure with demands for safety, reliability, and efficiency. Unplanned shutdowns and outages have a huge impact effects on plant performance. Lost production, escalating energy costs, unexpected maintenance costs, and heightened safety concerns are the real outcomes of equipment failure. New, developing process technologies must mitigate these plant control realities.

Wireless process control technology is a serious contender in the ongoing effort to improve plant efficiency,  mitigate risk, and increase productivity. Today's wireless transmitters are available for monitoring virtually any process control variable including flow, pressure, level, temperature, pH, Dissolved Oxygen, etc. Very notably, in the harshest environments, these devices reliably transmit critical control data back to central control areas around the clock and without the need for human presence.

The argument for wireless instrumentation is very compelling when you consider installation convenience and cost savings.  Some cost savings estimates run as high as 70%  by eliminating wires and cables, as opposed to the cost when using cables for the same application. And most remarkably, wireless instruments provide additional safety and compliance benefits by keeping maintenance personnel out of dangerous or hazardous areas.

All manufacturing industries are faced with the realities of cost cutting as plant managers endeavor toward continuous process improvement. The need for better solutions is always present, and wireless process instruments certainly appear to fit the bill. But before widespread adaptation of wireless occurs, concerns about reliability, user comfort, and integration must be overcome. However, as plant managers see the downward pressure on deployment and maintenance costs, and as they see improved employee safety and smoother environmental compliance, adoption of wireless instrumentation will accelerate and eventually become ubiquitous in process control.

Friday, May 4, 2018

DelVal Flow Control - Ball Valves, Butterfly Valves, Actuators

DelVal Flow Control offers high quality butterfly valves, ball valves, and quarter turn actuators that provide smooth, controlled and dependable flow of fluids through pipelines in process plants.

Products Include:  
  • Resilient seated butterfly valves 
  • Lined butterfly valves 
  • High-performance butterfly valves (double and triple offset) 
  • Trunnion mounted ball valves 
  • Floating ball valves
  • Actuators
800-288-7926

Friday, April 27, 2018

Valve Actuation 101: The Three Basic Types of Pneumatic Valve Actuator

Pneumatic valve actuators come in three basic design varieties:
  1. Scotch-yoke
  2. Rack & pinion
  3. Rotary vane
All three types provide the same function - converting air pressure to rotational movement intended to open, close, or position a quarter-turn valve (ball valves, plug valves, butterfly valves, or other 90 degree rotational valves).

All three styles are available in either direct acting or spring return versions. Direct acting actuators use the air supply to move the actuator in both directions (open and close). Spring return actuators, as the name implies, uses springs to move the actuator back to its "resting" state. Converting from direct acting to spring return is done through simple modifications, typically just adding an external spring module, or removing the end caps from rack and pinion actuators and installing several coil springs.

Scotch yoke
Scotch yoke (Limitorque)
Scotch-yoke actuators use a pneumatic piston mechanism to transfer movement to a linear push rod, that in turn engages a pivoting lever arm to provide rotation. They come in a wide variety of sizes, but are very often used on larger valves because they are capable of producing very high torque output. Spring return units have a large return spring module mounted on the opposite end of the piston mechanism working directly against the pressurized cylinder.

Rack and pinion
Rack and pinion (Delval)
A rack & pinion pneumatic actuator uses opposing pistons with integral gears to engage a pinion gear shaft to produce rotation. Rack & pinion actuators (sometimes referred to as a lunch box because of their shape) tend to be more compact than scotch yoke, have standardized mounting patterns, and produce output torques suitable for small to medium sized valves. They almost always include standard bolting and coupling patterns to directly attach a valve, solenoid, limit switch or positioner. Rack and pinion actuators use several smaller coil springs mounted internally and provide the torque to return the valve to its starting position.

Vane actuators generally provide the most space savings when comparing size-to-torque with rack and pinion and scotch yoke. They have a reputation for long life because then contain fewer moving parts than rack and pinion and scotch yoke actuators. Vane actuators use externally mounted, helically wound "clock springs" for their spring return mechanism.

The practical difference between these three types of pneumatic actuators comes down to size, power, torque curve and ease of adding peripherals. For the best selection of valve actuator for any quarter turn valve application, you should seek the advice of a qualified valve automation specialist. By doing so your valve actuation package will be optimized for safety, longevity, and performance.

Monday, April 16, 2018

Swanson Flo Markets - New Video

Here's a new short video highlighting the markets that Swanson Flo serves in the upper midwest United States.

Wednesday, April 4, 2018

Valve Automation Basics: Electric Actuators

Electric Actuator
Electric Actuator Assembly (Limitorque)
Electric actuators bring automation to industrial valve operation, allowing complex processes to be managed and controlled by remotely located control systems.

There are other motive forces used for valve actuators, including hydraulic and pneumatic, but electric actuators carry their own particular set of operating characteristics that make them an advantageous choice for many applications.

Valve actuators are available in uncountable variants to suit every application scenario. There are three basic valve actuation motions.

  • Multi-turn, with repeated rotations of the valve shaft needed to move the valve trim from fully open to fully closed. A gate valve is a multi-turn valve. These are also called linear, with respect to the motion of the closure element. The term "linear", in this case, refers only to the movement of the valve trim and not the flow characteristics of the valve.
  • Part Turn, where a 90 degree rotation of the valve shaft produces a change from opened to closed. Ball valves are in this category.
  • Lever, generally associated with damper control.

Electric Actuator
Completed Electrically Automated Valve
An electric actuator is a combination of motor and gearbox with sufficient torque to change valve trim position. A local self-contained control commands the motor and provides feedback to the process master controller regarding position, travel, torque, and diagnostics. Several interface options are available to facilitate communication between actuator and master controller.

There are numerous considerations to take into account when selecting an electric actuator.

  • Torque needed to effectively operate the subject valve.
  • Actuator enclosure type - wash down, hazardous area, dust, etc.
  • Service area for the assembly - corrosive environment, temperature extremes, and more
  • Valve movement - linear, multi-turn, part turn, lever
  • Operation mode - open and close only, positioning, modulating
  • Frequency or duty cycle - infrequent, frequent, or almost continuous positioning
  • Communication - How will the local controller communicate with the central control system?
  • Electrical - What electric power characteristics are available for operation?
  • Protections - Motor overload, torque limit, others
  • Process Safety - Among other things, what happens if power fails? 

There are certainly other elements to consider when applying an electric actuator for industrial use. Share your valve and actuator requirements and challenges with product specialists, combining your process knowledge with their product application expertise to forge the most effective solutions.

https://swansonflo.com
800-288-7926

Friday, March 30, 2018

Swanson Flo Performance - Full Capability Instrumentation and Valve Service & Repair

In-house repair as well as field service capabilities for process measurement and control.

Swanson Flo Performance supports every process control customer with region-based, full-capability service and repair. Both in-house and in-field. Built on more than 50 years of applications experience and technical knowledge.

  • From valves and instruments to actuation, fabrication and preventative maintenance. 
  • Our technicians are factory-certified. 
  • Shop is factory audited.
  • Total service for process measurement and control
  • Valve actuation facilities – the "Center of Excellence"
  • Instrument calibration, repair, and trouble-shooting services
Call 800-288-7926 or visit https://swansonflo.com


Monday, March 26, 2018

Limitorque MX Actuator Users Instructions, Maintenance, and Spare Parts Manual

Flowserve Limitorque MX
The Flowserve Limitorque MX actuator controls the opening and closing travel of valves and other actuated devices. OPEN and CLOSED limits are protected by an absolute encoder that provides optical sensing of valve position and measures valve position in both motor and handwheel operation.

No battery or backup power supply is required. Output torque is derived from motor speed, temperature, and voltage. If the preset torque is exceeded, the motor shuts off. As a result of this reliable and advanced protection technology, all valve and other actuated devices are protected from potential damage from overload, improper seating, and foreign obstructions.

A range of control and network options is available and can be easily added to the control capabilities already available on a standard actuator.

You can download the Limitorque MX Electronic Actuator User Instructions, Maintenance, and Spare Parts Manual in PDF version from the Swanson Flo site here (8.5MB), or read the embedded version below.