Pneumatic Actuator Accessories mount to NAMUR standards.

Press Release Summary:

Pneumatic Actuators are available with full line of accessories. The 4- and 3-way solenoid valves provide electrical operation of on-off functions, while pneumatic positioners automatically position output shaft to valve angles between 0-90°. Electro-pneumatic positioners offer direct or reverse operating modes. Valve status monitor signals actuator and valve position to local and remote stations. Proximity position indicator provides 2 inductive proximity switches in sealed enclosure.

Original Press Release:

Pneumatic Actuator Accessories Direct Mount To Namur Standards

Houston, TX-Augst 12, 2004-Ultraflo has introduced new accessories for their complete line of pneumatic actuators. New accessories include 4 and 3-way solenoid valves, pneumatic positioners, electro-pneumatic positioners, valve status monitor and proximity position indicator. All pneumatic actuator accessories from Ultraflo mount directly to Ultraflo pneumatic actuators and comply with NAMUR recommendations (VDI/VDE 3845) as standard.

4 and 3-way solenoid valves provide electrical operation of pneumatic actuator on-off functions. 4-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 1/4" NPT and the electrical connection is 1/2" NPT. A manual override is located on the top of the valve body. A 3-way solenoid is also available.

Modular pneumatic positioners automatically position the output shaft to precise valve angles between 0° and 90° with a standard positioner input signal of 3-15 psi. They function with double acting or spring return actuators and feature selectable speed control, fast and accurate calibration, 2 NPT conduit entries, reversible and split range functions. Waterproof and intrinsically safe housings are available.

Electro-pneumatic 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 mA DC or 4-20 mA DC input signal and function as an integrated I/P converter, 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 15 amps at 125 or 250 volts 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) micro switches. Available switch options are 4 micro switches, 2 proximity switches, 2 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 (IP 67) 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 20-140 VAC with a maximum load current of 200 mA. DC units operate on 10-36 VDC with a maximum load current of 250 mA.

Ultraflo, A Subsidiary of Bray International, Inc, is headquartered in Ste. Genevieve MO, and is a leader and innovator in process control automation. Products include automated and manual butterfly valves, pneumatic and electric actuators, valve status monitors, electro-pneumatic and pneumatic positioners, solenoid valves and control accessories. For more information, contact Mike Lurk, Ultraflo, at 8 Trautman Industrial Drive, Ste. Genevieve MO 63670. Phone: 800-950-1762; Fax: 573.883.8882

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