5000 Series Pneumatic Positioner

Product catalog summary

Overview
The Posi-flate 5000 Series Pneumatic Positioner is designed for accurate valve positioning, compatible with 3-15 PSI pneumatic control signals or 4-20 mA signal inputs via current-to-pressure transducers. It offers various options such as limit switches, position feedback transmitters, and visual indicators.

Applications
This positioner is suitable for all pneumatic rotary actuator types, including rack-and-pinion and heavy-duty actuators. Its housing is made from durable die-cast aluminum with protective coatings, making it ideal for harsh industrial environments.

Features

Non-interactive span adjustment for reduced calibration time.
Adjustable gain for sensitivity adjustment without component replacement.
Corrosion-resistant materials with anodized aluminum parts.
Captive cover screws to prevent loss during calibration.
Optional visual dome indicator for clear valve position viewing.
Field upgradable to electro-pneumatic options without cover removal.
Vibration resistant design for reliable operation.

Principles of Operation
The positioner operates by rotating a valve actuator in response to pneumatic pressure input. It uses a precision spool valve to direct supply pressure, with feedback mechanisms ensuring accurate positioning.

Specifications

Resolution, dead band, repeatability, and hysteresis all at 0.5% of full scale.
Linearity at 1% of full scale.
High-gain flow range from 30% to 110%.
Supply pressure range from 30 to 120 PSI.
Ambient temperature range from -40 to 81 degrees Fahrenheit.

Materials of Construction

Housing and cover: Aluminum with dichromate and powder coat.
Shaft, cam, and various components: Stainless steel.
Diaphragm: Nitrile rubber.

Ordering Information
To order, select options for base model, input signal, visual indicator, gauges, spool valve, and cam. Additional options can be added as needed, listed alphabetically. Posi-flate seat inflation controls are necessary when used with a Posi-flate butterfly valve assembly.

Examples

A50-1-4-7-A: Basic model with 3-15 PSI input, flat indicator, standard gauges, high flow spool valve, linear cam, and auto inflate/deflate controls.
A51-2-5-7-A-F-T: Model 5100 with NEMA 4, 4-20 mA input, visual dome indicator, stainless steel gauges, high flow spool valve, linear cam, 4-20 mA feedback, NAMUR shaft, and auto inflate/deflate controls.

Catalog excerpts

The Posi-flate > 5000 Series Pneumatic Positionerprovides accurate valve positioning with advanced features.It may be used with 3-15 PSI pneumatic control signals (as shown), or fitted with one of three current-to-pressure transducers for 4-20 mA signal inputs.The pneumatic positioner is available with many options including limit switches, position feedback transmitter and a visual dome indicator. Non-interactive span adjustment. Reducescalibration time. Adjustable gain. Allows positioner sensitivity adjustment without removing or replacing components. Corrosion-resistant materials .All exposed parts are constructed of heavy-duty anodized aluminum. > Captive cover screws. Permits calibration without potential for losing screws. A high spool valve, plus an adjustable gain system, make the pneumatic positioner well suited for use with all pneumatic rotary actuator types including rack-and-pinion, heavy duty and others.The positioner housing is constructed from durabledie-cast aluminum and treated with a dichromate undercoat and polyester powder top coat for protection against the toughest applications in all process industries. Optional visual dome indicator. Provides fully adjustable, high-contrast, full-angle viewing of valve position. Field upgradable - to any of three electro-pneumatic options without removing the cover.Switches or a position transmitter can be installed in the field by replacing the shaft and adding modular cards. Vibration resistant .Low spool mass, outboardspool bearings and locking calibration adjustments provide reliable operation under high vibration. >

Open the catalog to page 1

All Posi-flate catalogs and technical brochures

Archived catalogs

Trak-Lok® 449 Series Limit Switch and Position
4 Pages
Tork-Mate Pneumatic Actuator - Series 890
8 Pages