Pneumatic cylinder switches — The NITRA line now includes nine styles of position switches for pneumatic cylinders, including round, dovetail, T-slot, square, and D-shaped. Also available are additional dovetail accessories to accommodate larger dovetail slots. The solid-state electronic switches come in normally open three-wire dc pnp and npn configurations, and can be purchased with an M8 wiring connector or 3-m integral cable with wire leads. Mounting bands with adapters for round body cylinders come in 1/8 to 4-in. sizes. AutomationDirect, 3505 Hutchinson Rd., Cummings, GA 30040, (800) 633-0405, Visit www.automationdirect.com/cylinder-switches
Toggle and stem valves — The HV-HTV toggle and stem Series valves are available in three and four-way configurations. The valves feature #10-32 inlet and outlet ports, and 15 scfm @ 100-psig flow. They are available as toggle or stem actuated and cartridge styles are also available. The HV-3 Series is a fully ported three-way valve that can be used to choose between two separate pressures or fluids going to a single output. Being fully ported, the inverse will work as well using the valve as a diverter sending a fluid to two separate outputs. It may also be used as a normally closed or normally open three-way valve. The HV-4 Series is a four-way valve that vents its exhaust ports to atmosphere and is suitable for powering simple cylinder applications. Clippard Instruments Laboratory Inc., 7390 Colerain Ave., Cincinnati, OH 45239, (877) 245-6247, Visit www.clippard.com
Lockout valves — The company is expanding its line of pneumatic lockout valves. The Standard LV Series now includes compact and high-flow versions. Lockouts are installed in pneumatic drop legs or individual pneumatic control lines and are used during maintenance of pneumatically operated equipment to help protect maintenance personnel by preventing a machine from engaging while it is being worked on. The LV Series features port sizes from 3/8 to 1¼ in. and the compact version features ¼ and 3/8-in. sizes. The high-flow LV Series features 1½ and 2-in. port sizes and is suited for higher flow applications. All versions operate in 40 to 175°F (4.4 to 79.4°C). The compact version handles 15 to 145-psi inlet pressures, while both the standard and high-flow versions handle 15 to 300-psi inlet pressures. All versions are in-line or surface mountable. The new EZ Series meets the same standards as the LV Series but with the added feature of a soft start when opened. Upon opening, an adjustable needle valve controls pressure buildup rate. The valves feature 3/8 to 1¼-in. port sizes and handle 30 to 150-psi inlet pressures. The new LVSS Series consists of corrosion-resistant stainless-steel versions of the LV Series. An important new option for all of the valves is a visual indicator that verifies energy isolation by popping-up when the valve is open and air is flowing. Parker Hannifin Corp., Pneumatic Div., 8676 E. M89, Box 901, Richland, MI 49083, (269) 629-5000, Visit www.parker.com
What's new in fluid-power cylinders and valves.