Fairchild Industrial Products is offering the high flow, high pressure, intelligent electropneumatic valve model T7900. The unit comes in a number of pressure control ranges between 10 and 1000 kPa with flow capacities close to the model 4500 volume booster, up to 200 normal m3/h and various other features.
A built-in pressure sensor, for example, measures output pressure directly at the output port. A remote feedback option is available as well, making pressure measurement possible at a remote location. This pressure signal is subsequently available as 4 to 20 mA signal to the control system.
Output pressure control is done by the built-in PID controller receiving a 4-20 mA signal as setpoint from the control system.
The built-in PID controller can be tuned to the needs of the customer, making the change from the 4 to 20 mA input signal to the required pressure output signal as smooth as possible. The electronic valve is therefore equipped with a four button keypad to make tuning and calibration possible directly from the unit.
Especially in the paper industry the 420 mA output pressure signal, in combination with, for example, the remote pneumatic feedback option, makes it possible to keep track of any pressure losses in systems downstream from the electronic valve. This could be pressure losses, for example, in bellows used as in shoe presses or online coating systems. This way the customer notices immediately when there are any leaks in these systems.
The T7900's four button keypad and liquid crystal display allow easy on-site entry of operating parameters and the precise setting of tuning coefficients for a wide range of applications including machine tool automation and robotics. The display shows output pressure in either psig, bar or kPa.
In addition to the internal feedback sensor, a remote current or voltage feedbacks signal is also standard. Instead of the remote feedback sensor, adjustable dry contact high and low limit alarm relays are available as an option. A remote pneumatic feedback signal is also optional.
Nema 4X, IP65 and Type 4 enclosure allows use in outdoor or washdown applications and its RFI/EMI protection eliminates susceptibility to electromagnetic and radio interference.
New wastewater pump for local municipalities and industries
Valves, Actuators & Pump Control
The latest wastewater pump from KSB Pumps and Valves is making waves in the industry due to a host of new features that provide users with an ultra-durable long service pump with fewer blockages and a lower maintenance requirement than traditional pumps.
Read more...The critical role of check valves in fluid systems
Valves, Actuators & Pump Control
In fluid power systems, the performance and reliability of the entire operation often hinge on components that are small in size but significant in function. Among these, the check valve stands out as a fundamental yet frequently overlooked element.
Read more...ENERGYValves expands operations
Valves, Actuators & Pump Control
ENERGYValves is expanding its operations with a new facility in Cape Town. The new premises will significantly enhance the company’s capacity to serve the Cape Town market and surrounding areas.
Read more...Pumps lead the way with advanced technology
Valves, Actuators & Pump Control
The KSB GIW MDX pump has consistently represented a major leap forward in mill duty applications, with KSB relying on customer feedback to improving the design continuously.
Read more...Wireless leak detection valve
Valves, Actuators & Pump Control
Designed to prevent water leakage by automatically shutting off the water supply when a leak is detected, the Runxin F104 wireless leak detection valve is one of the latest offerings from Allmech.
Read more...Ball valves and actuators optimise HVAC performance Schneider Electric South Africa
Valves, Actuators & Pump Control
Schneider Electric offers the full range of innovative SpaceLogic and EasyLogic ball valves and actuators. These cutting-edge products are designed to optimise HVAC system performance, ensuring comfort and energy efficiency in commercial and residential buildings.
Read more...Alfa Laval expands hygienic valve portfolio
Valves, Actuators & Pump Control
Alfa Laval is expanding its hygienic valve portfolio by introducing the Unique SSV pressure relief valve and the Leakage Detection butterfly valve, alongside new smaller sizes of the Unique Mixproof CIP and Unique Mixproof process valves.
Read more...Preparing pump systems for adverse weather conditions
Valves, Actuators & Pump Control
As the severity of storms in South Africa increases, so has the rush of sediment-laden water become a major issue and a significant challenge for irrigation. When sediment levels rise to just 10 grams per litre or more, the risk of pump wear and dam silting increases dramatically.
Read more...High-flow solenoid valve Emerson Automation Solutions
Valves, Actuators & Pump Control
Emerson has introduced the new ASCO Series 327C solenoid valve, which features a direct-acting, high-flow design that provides superior flow-to-power ratio. It permits high flows at minimum power levels, making it ideal for use in power plants, refineries, and chemical processing facilities.
Read more...Proportional cartridge valve series is the fastest in its class
Valves, Actuators & Pump Control
Parker Hannifin is introducing the enhanced version of the proportional cartridge throttle valve series, TFP. The new pilot valve further reduces the step response times by up to 30%, making the TFP the fastest valve in its class.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version