Accessories complement pneumatic actuator range

Edited by the Engineeringtalk editorial team Aug 23, 2004

Ultraflo has a new range of accessories for its complete line of pneumatic actuators.

Ultraflo has a new range of accessories for its complete line of pneumatic actuators.

New accessories include four- and three-way solenoid valves, pneumatic positioners, electropneumatic positioners, valve status monitors and proximity position indicators.

All pneumatic actuator accessories from Ultraflo mount directly to Ultraflo pneumatic actuators and comply with Namur recommendations (VDI/VDE3845) as standard.

Four- and three-way solenoid valves provide electrical operation of pneumatic actuator on/off functions.

Four-way solenoids are direct mounted to the actuator by a Namur interface, with no external tubing required.

Both waterproof (NEMA 4) and explosion proof (NEMA 4,7,9) housings are standard.

NPT and IP65 DIN connections are offered with both single and dual coils.

The air supply connection is 0.25in NPT and the electrical connection is 0.5in NPT.

A manual override is located on the top of the valve body.

A three-way solenoid is also available.

Modular pneumatic positioners automatically position the output shaft to precise valve angles between 0 and 90 degrees with a standard positioner input signal of 3-15lb/in2.

They function with double acting or spring return actuators and feature selectable speed control, fast and accurate calibration, two NPT conduit entries, reversible and split range functions.

Waterproof and intrinsically safe housings are available.

Electropneumatic positioners feature a modular design that allow actuators and accessories to be freely combined.

For use with either double or single acting actuators, they provide direct or reverse operating modes.

Zero and range adjustments can be set separately.

They accept either a 0-20 or 4-20mA DC input signal and function as an integrated I/P convertor, amplifier and controller.

The valve status monitor signals actuator and valve position to local and remote stations.

The compact valve status monitor mounts directly to the top of the actuator.

Features include finger-touch control cams, captive cover bolts, local position indicator and two conduit entries for easy wiring.

Rated for 15A at 125 or 250V AC, the monitor is provided with internal travel switches that are prewired to a terminal block.

Standard switches are two single-pole double-throw (SPDT) microswitches.

Available switch options are four microswitches, two proximity switches, two pneumatic switches or potentiometer for continuous readout.

The housing is available in waterproof (NEMA 4, 4X) or explosion proof (NEMA 4, 4X, 7, 9).

The proximity switch valve position indicator provides two solid-state inductive proximity switches in a self-contained, fully sealed, compact enclosure.

The NEMA 6 (IP67) rated unit offers superior moisture, chemical and corrosion resistance.

Features include a high visibility pointer and LED output for local position indication, nonmagnetic targets and a multi-pin electrical cable connector.

The indicator is easy to install and mounts directly to Ultraflo pneumatic actuators.

The unit can also be mounted to manually operated valves.

AC and DC units are available.

AC units operate on 20-140V AC with a maximum load current of 200mA.

DC units operate on 10-36V DC with a maximum load current of 250mA.