Zero Bleed Pneumatic Controller for Valve Actuators and Other Process Control Apps

This video shows the components of the BiFold Zero Bleed Pneumatic controller. Called "PICO", this unit was first described in a previous article. Check out the video, as it nicely lays out the various operating components of a complete system. More information is available from product application specialists, with whom you should share your valve control and actuation challenges to get positive and effective solutions.

Zero Bleed Pneumatic Controller

The PICO consists of a single logic control head
and a digital filter booster
Courtesy Bifold - Rotork

The Bifold brand, under the Rotork corporate umbrella, developed a true zero bleed pneumatic position controller for valve actuators. The product, called PICO, consists of a single logic control head and a digital filter booster. The control head unit provides bluetooth communications, ESD monitoring and control, graphic display, integral valve feedback measurement, low power modes, a partial stroke test feature and local control setting switch. The properly installed assembly is suitable for use in hazardous locations.

The new control unit is capable of fulfilling applications employing positional control, on/off and ESD (emergency shutdown) valves. The filter booster allows the small size of the PICO to deliver the flow rate of a substantially larger system of conventional design.

The PICO, with control head and filter booster
shown installed on pneumatically actuated valve
Courtesy Rotork - Bifold

The PICO provides a number of operational benefits to pneumatic actuated valve applications. More information is available from product application specialists, with whom you should share your valve control and actuation challenges to get positive and effective solutions.

Two New Products From SVF Flow Controls

New products from SVF Flow Controls

SVF Flow Controls, manufacturer of valves and actuators for industrial process control (learn more here), recently released their new rack and pinion actuator, the EZ-Tork™. The line of pneumatic valve actuators features bi-directional stroke adjustment, a continuous position indicator, hard anodized aluminum housing, and universal mounting. The line offers 33 models spanning a broad range of operating torque. Units are available in double acting or spring return variants.

The SL Series of butterfly valves feature direct mounting for electric or pneumatic automation. Manually operated units have a ten position locking handle or gear operator. Epoxy coated ductile iron body, 316 stainless steel disc, and EPDM or BUNA seats enable the application of this valve throughout many industrial settings. Sizes range from 2" to 12".

More detail is available from valve and fluid control specialists. Share your application challenges and combine your own process knowledge with their product application expertise to develop effective solutions.