INNOVATIONS & SOLUTIONS
Asahi / America updates actuators
Asahi / America , Inc ., has announced that its electronic and pneumatic actuators have been added to the control valves specification section ( 230923.11 ) of MasterSpec ® . The Series 19 electric actuator and Series 79 pneumatic actuator specifications have been vetted and formatted by MasterSpec ® to fit the Product MasterSpec™ format . Engineers who use MasterSpec ® will now be able to incorporate Asahi / America ’ s Series 19 and Series 79 actuator specifications as the basis of design for various municipal and industrial projects . The Series 19 electric actuator is available in four operating configurations : on / off , modulating , failsafe , and modulating failsafe ; and three sizes to meet valve torque requirements . The multi-voltage general purpose unit operates at a 75 % duty cycle for more frequent cycling of the valve . Compatible with most PLCs , the Series 19 is an ideal choice for OEMs and skid manufacturers where space is at a premium , but power cannot be sacrificed . Asahi / America ’ s Series 79 pneumatic actuator is offered in glass-reinforced polyamide , cataphoresis & Rilsan-coated cast aluminum alloy , and 316 stainless steel - all of which incorporate ISO and NAMUR mounting configurations for simple installation of valves and accessories .
Double interlock preaction system
Vikings ’ Double Interlock Preaction System with electric / pneumatic release is protects water-sensitive areas such as computer rooms and storage areas from flooding by the sprinkler system . Normally the preaction system does not contain water in the sprinkler piping . The Viking system utilises a Deluge Valve Fig . 502 and Riser Check Valve Model CH . The Riser Check Valve isolates the Deluge Valve from the system air pressure and provides an air check so the system can be pressurised automatically with a supervisory air or nitrogen pressure of 42 PSI ( 2.94 Bar ). A supervisory low-pressure alarm switch can be set at 20 PSI ( 1.40 Bar ), on decreasing pressure , to indicate whether there are any abnormal leaks in the sprinkler system piping . Loss of air pressure from the system due to accidental leakage will not cause the Deluge Valve to open . The releasing trim for Deluge Valve utilises a Solenoid Valve and a Dry Pilot actuator in a series configuration . The system air pressure holds the Dry Pilot actuator closed , whereas the Solenoid Valve remains closed until it is electrically energised by a Deluge Valve Releasing Panel ( automatic control unit ).
Valworx releases new product line
Valworx has released a new line of explosion-proof electric actuators . These are certified to UL Class I Div I and ATEX standards and are typically used in applications where explosive gases may be present . They are available in On / Off & EPS Positioning units , 24VDC & 110VAC . The features are : UL C1 / D1 + ATEX + IECEx Explosion-Proof rated ; CSA Listed per UL429 and CSA C22.2 ; Quarter turn ( 90 °) operation with mechanical travel stops ; Type 4X / IP67 weatherproof aluminum alloy enclosure ; Highly visual dial-style valve position indicator ; Manual override ; ISO5211 multi-flange valve mounting ; Heavy-duty motor with overload protection , 70 % duty cycle ; and Thermostatically controlled anti-condensation heater . Valworx has also released wafer and lug ductile iron butterfly valves with explosion-proof actuation and will soon be expanding their explosion-proof line to include flange valves and other stainless steel valves . www . valve-world . net Valve World November 2022
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