Product category:
Hydraulics and Pneumatics
News Release from: Ultraflo | Subject: Pneumatic actuator accessories
Edited by the Processingtalk Editorial
Team on 18 August 2004
Pneumatic actuator accessories to Namur
New pneumatic actuator accessories from Ultraflo direct mount and comply with Namur recommendations (VDI/VDE 3845) as standard: these include 4 and 3-way solenoid valves and a valve status monitor
Pneumatic actuator accessories direct mount to Namur standards Ultraflo has introduced new accessories for their complete line of pneumatic actuators
This article was originally published on Processingtalk on 21 Jun 2004 at 8.00am (UK)
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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.
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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 0deg and 90deg 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 pre-wired 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.
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