Control valves
High-temperature characterized control valves meet the challenges of space-restrictive applications, such as unit ventilators and fan-coil units. The valves are available with spring and non-spring actuators. Environmentally friendly and suitable for use as a potable-water control valve, the valves can control a steam supply of 15 psig or less.
— Belimo Americas
Circle 75
Water-source units
City Multi water-source variable-refrigerant-flow-zoning units are available in either heat-recovery or heat-pump models. WR2-Series heat-recovery units and WY-Series heat pumps are designed for buildings with existing closed-water-loop systems. Typical closed-loop installations include dry coolers, closed cooling towers, or open cooling towers with heat exchangers. Both the heat-recovery and heat-pump units can be installed inside, rather than outside, a building. The heat-recovery units simultaneously can cool and heat connected zones, while the heat pumps are designed to work in either cooling or heating mode.
— Mitsubishi Electric
Circle 76
Check valves
The curved-bill TF-1 check valve is designed to enhance sealing, especially in low-lying areas with little backpressure. The valve is constructed of rubber, making it almost immune to rust, corrosion, and weathering. The valve's curved bill seals without backpressure, allowing for a tighter seal that eliminates gapping issues. The flexible bill also seals around entrapped debris. The headloss of the valve remains low. Applications include site drainage, stormwater discharge, and sewer systems.
— Tideflex Technologies
Circle 77
Semiconductor-valves brochure
A brochure from Microstaq outlines the company's semiconductor micro-electro-mechanical-systems valves. A product overview is given, as well as a table that contains three valve models broken down by valve type, application, industry, orifice range, and description. Applications, such as industrial, commercial, medical, and process-control, are described.
— Microstaq
Circle 78
Split-case pumps
Bell & Gossett has introduced seven new models in its VSX line of double-suction, vertical split-case pumps, increasing the line to a total of 43 models and sizes. The new pump models increase capacities to 28,000 gpm, using 1,250 to 3,000 hp motors at 1,780 rpm. Balanced cartridge mechanical seals are included as standard on all models.
— Bell & Gossett
Circle 79
Valve/actuation packs
Asahi/America has prepackaged more than 125 of their valve and actuator combinations in Fast Packs. Packages feature Series 92 or 94 electric actuators or Series 79 pneumatic actuators mounted on Type 21 PVC ball valves or Type 57 PVC butterfly valves. Suited for industrial applications featuring harsh-media environments, packages are available in ½- to 4-in. ball valves and 1½- to 8-in. butterfly valves.
— Asahi/America Inc.
Circle 80
Valves
The compact VAX valve combines a process valve and actuator in an integrated unit with only one moving part. The valve has a coaxial design that offers high flow rates with minimal pressure loss and extends the valve's cycle life. The electric version of the valve functions like a direct-acting solenoid valve. Its pressure-balanced design with spring return allows the valve to function regardless of system pressure or pressure differential on either side of the valve. The valves are available in two- or three-way configurations with pressure ratings of up to 600 psi.
— Assured Automation
Circle 81
Send new-equipment, literature, and digital-media announcements for future Applications & Resources sections on BAS/controls, boilers, motors and drives, ventilation, pumping and piping, and humidification to Associate Editor Megan White at [email protected]. Indicate in the subject line of the e-mail message the intended section.