The Motion 85915/85916 Ball Drive Actuator provides a miniature package for operating loads up to 40lbs. The basic construction incorporates the Motion Ball Drive 85906 which is a high efficiency .222 diameter Epicyclic Ball Screw with integral freewheeling at stroke ends to eliminate limit switches. Both 12 VDC and 24 VDC are available. The 85915 uses a translating tube for mounting, while the 85916 is an open screw type unit where attachment is made directly to the ball nut.

Motion Systems can tailor actuators to your specific application and requirements.

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For torque requirement valves up to 28500 inch.lbs (3220 Nm.) The AFS (Air Fail Safe) actuator is designed to provide a high fail stroke torque in a double rack and pinion actuator that cannot be achieved using springs. All the safety and performance features of double rack and pinion actuators are maintained as is the Hytork "XL" reliability.

Using the time proven air accumulator system, and modern design techniques, Hytork produces air chamber modules with all the pneumatic circuitry Safety protected within.

The HYTORK AFS maintains the highest seen air supply pressure within the chamber modules, to be released upon control demand. This design also prevents closure "creeping" when air supply pressures drop, which occurs with all spring return designs. Torque output is constant in the powered stroke with only a small drop off on the fail stoke. The available torques are proportional to the air supply pressure. Spring changes for various air supply pressures need not be made.

The AFS operates as a double acting actuator in both directions until there is a loss of supply pressure. When this loss occurs, the compressed air stored in the chambers powers the actuator to close the valve. This makes the AFS Series suitable for use in ON/OFF and MODULATING CONTROL situations while still providing the fail safe requirement. The AFS is supplied already furnished with an installed, direct mount solenoid valve. The coil type is selected to suit your site requirements. This saves on site piping and ensures the assembly has been fully tested. Click here for information on Hytork's Fail Safe & Safety Spring Removal System.

Related Documentation:

• Technical Information
• Maintenance Manual
• PDF brochure for the Air Fail Safe Actuator

Actuator Features & Benefits:

• High Performance In The Fail And Powered Strokes
• High Reliability
• Compact Heavy Duty Design
• 4580AFS Actuator Torque At Various Air Pressures
• Diagrams & Charts
• Materials Of Construction
  

For torque requirement valves up to 28500 inch.lbs (3220 Nm.) The AFS (Air Fail Safe) actuator is designed to provide a high fail stroke torque in a double rack and pinion actuator that cannot be achieved using springs. All the safety and performance features of double rack and pinion actuators are maintained as is the Hytork "XL" reliability.

Using the time proven air accumulator system, and modern design techniques, Hytork produces air chamber modules with all the pneumatic circuitry Safety protected within.

The HYTORK AFS maintains the highest seen air supply pressure within the chamber modules, to be released upon control demand. This design also prevents closure "creeping" when air supply pressures drop, which occurs with all spring return designs. Torque output is constant in the powered stroke with only a small drop off on the fail stoke. The available torques are proportional to the air supply pressure. Spring changes for various air supply pressures need not be made.

The AFS operates as a double acting actuator in both directions until there is a loss of supply pressure. When this loss occurs, the compressed air stored in the chambers powers the actuator to close the valve. This makes the AFS Series suitable for use in ON/OFF and MODULATING CONTROL situations while still providing the fail safe requirement. The AFS is supplied already furnished with an installed, direct mount solenoid valve. The coil type is selected to suit your site requirements. This saves on site piping and ensures the assembly has been fully tested.

High Performance In The Fail And Powered Strokes

• Constant torque output during normal operation.
• A very low torque drop off on the fail stroke provides higher usable torque than spring designs.

High Reliability

• All components are located and protected inside the air chamber modules.
• A proven, successful track record.

Compact Heavy Duty Design

• Similar in size to spring return designs yet three times the power output.
• Central mounting over the valve prevents pipe twisting.
• Balanced design eliminates the need for support brackets.
• No side loads to wear the valve stem packing.
• Lower actuator cost.
  

The Airpot Actuator is an instrument class pneumatic pressure or vacuum operated device designed to provide ultra-low friction and exceedingly long life with the least amount of mass and contamination. It is particularly well suited for applications requiring the most sensitive response possible from an air cylinder.

Airpot products offer the following benefits over other pneumatic piston /cylinder based motion control devices:

• They have unparalleled low friction, responding to forces as low as only a few grams and pressures less than 0.2 psi.
• Starting and running friction are almost identical, preventing jerky, uncontrolled starts and providing uniform smoothness throughout the full stroke of the device.
• They are unaffected by extreme temperature variations
• They run clean and do not contaminate surrounding components.
• No seals are required, and there are no liquids to leak.
• They are made of self-lubricating materials.
• They can withstand exceedingly high cycle rates. They do not heat up or change viscosity under conditions of rapid and/or continuous cycling
• They have a life-span of multi-millions of cycles. They will commonly outlast the machines in which they are used.
• The piston and cylinder will not rust, corrode, or deteriorate over time, even with little or no use over extended intervals.
• They are precise and accurate
• They can be customized easily to suit special space, mounting, and performance requirements

Custom air energized elastomeric clamps and actuators are perfect for clamping fragile and/or radiused products or applying consistent linear forces. Using Pneuma-Seal as an inflatable clamp provides uniform controlled pressure to firmly clamp pieces for bonding or to hold pieces in place during machining or cutting operations.

Inflatable Clamps - Using Pneuma-Seal as an inflatable clamp provides uniform controlled pressure to firmly clamp pieces together during bonding operations or to hold pieces in place during machining or cutting operations. Typical applications include the bonding of airframe components and stopping large pharmaceutical bottles on a conveyor line.

Inflatable Actuators - The expanding Pneuma-Seal moves and repositions other components which exert pressure to actuate switching devices, to open and close air or hydraulic passages, or to clamp mechanical components. In a typical application, the inflatable actuator effects the desired motion and mechanical springs return the components to their normal open or closed position.

See animations and examples of clamping and actuation applications of Pneuma Seal

• Multiple Bladder Shaft
• Single Bladder Shaft
• Conveyor Brake/Stops
• Airframe Component Bonding
• Robotic Hands

You can access detailed technical data, drawings and configurations - CLICK HERE

View Our Comprehensive Material Selection Guide Fabrics play a large role in how we design our reinforced products. Click here for a better understanding of the fabrics we commonly use

To learn more visit our website via the link on the right, or e mail us with your challenges and inquiries - we can help

For use with Ball Valves up to 2"

GENERAL DESCRIPTION

Corrosion Resistant: Hayward® PMD and PMS actuators feature heavy-duty, corrosion resistant construction. These actuators are designed to stand up to most corrosive environments and other harsh conditions without the need for epoxy coatings.

Two Modes of Operation: Series PMD actuators are air-to-air (double acting), while the PMS Series are air-to-spring (fail safe) actuators. Air-to-air actuators require air pressure for both actuation cycles, open and close. Air-to-spring actuators have a mechanical spring return unit enclosed in the actuator housing that is used to operate one of the actuation cycles, either open or close. Both types work with all True Union and Three-way Ball Valves up to 2" in size.

Rugged Design: The actuators feature a proven, heavy-duty rack and pinion design that is extremely reliable. The actuators require no maintenance. The internal lubrication lasts indefinitely, even in applications where the actuator is cycled frequently.

Modular Mounting Options: These actuators feature a Namur style modular mounting system for options. Options mount separately to the actuator, they are not built in or enclosed in the housing. This makes it very easy to add options to the actuator after it has been installed into the system should the need ever arise due to changes in application parameters. You never have to pay for an options package with features you may not use.

Manual Override Standard: Both types of actuators feature a standard manual override and can be operated manually in the event of air or electrical failure. This means that the valve can be manually opened or closed without having to remove the actuator from the valve for access to the valve stem.

• See Catalog Information

Features

• Plastic Housing
• Two-Piston Rack & Pinion Design
• Manual Override
• Position Indicator
• Light Weight
• Permanent Lubrication
• Stainless Steel Output Shaft
• Namur-Style Mounting
• Two-Year Warranty

Options

• Air-to-Spring Fail-Safe Operation
• Solenoid Valves
• Voltage Options
• Cycle Speed Controls Limit Switch

About Hayward Flow Control Systems:

Hayward carries an extensive line of plastic valves including two-way and three-way true union ball valves, proportional control valves, pneumatic and electric actuated valves, pipeline strainers, basket strainers, and Y-strainers. In addition to our complete line of pneumatic and electric actuators that can be packaged together with our valve products, we also have actuator mounting kits, control systems/panels, bag filters, cartridge filters, in-tank filtration systems and high purity water and aggressive chemical filtration cartridges designed to meet today's demanding processing requirements.

Please click on the links to the right for more information or request a quote today!