Pneumatic And Hydraulic Equipment Page 744

NORGREN Two Hand Pneumatic Control Systems are used in compressed air systems to protect both hands of a machine operator by requiring nearly simultaneous operation of two hand-operated 3-way valves to obtain a pneumatic output from the control module. The output from the control module is used to pilot a customer supplied 2, 3, or 4-way, spring return valve or, in some cases, to directly control a spring return cylinder up to 2-inch bore. The sys- tems are available as an assembled unit or in kit form. With kit installations, the control module may be mounted at a convenient location on the machine, adjacent to or remote from the palm button operated, 3-way control valves. FEATURES Designed to provide an output only when both palm button 3-way valves are operated nearly simultaneously. Designed to prevent an output if either palm button is tied down. Designed to cut off the output if either one or both palm buttons are released. Supply pressure is directly connected to the control module, resulting in a fast response time, as compared to designs that use the output of the 3-way valves to supply the module. The control module is protected internally against air contamination by filter disks. Clogging of either inlet will prevent an output. For maximum service life, the air supply should be prefiltered with a 25-micron or finer filter. TWO HAND PNEUMATIC CONTROL SYSTEMS OPERATION An outlet pressure at S is provided only when the machine operator actuates palm buttons A and B within 250 milliseconds of each other. If only one palm button is actuated, or if both palm buttons are actuated more than 250 milliseconds apart, an outlet pressure at S is prevented. Outlet pressure at S is cut off if either palm button A or B is released, of if supply P is cut off. If outlet pressure S is interrupted for any reason, palm buttons A and B must again be operated within 250 milliseconds of each other to restore an outlet pressure at S. Description Part No. Price Two Hand Control Unit CSV-101 $495.41 Order the CSV-101 assembled unit when a complete two hand control package that requires only one supply and one output connection provides the most practical solution. Air line connections 1/8" female pipe. Description Part No. Price Two Hand Control Kit* D0040A $756.65 * Contains: 2-Palm Buttons 2-Three-way valves 20 Feet of nylon tubing (5/32" OD) 4-Brass connectors; 1/4" male x 5/32" tube 1-Brass pipe cross (1/4" NPT female) 2-Palm button shrouds 1-Control module Mead Norgren pneumatics (314) 427-0600 800-444-0522 (FAX) 314-427-3502 www. j hf.com JHF Catalog [ Volume 7 ] 744 Prices Subject to Change Without Notice John Henry Foster pneumatic and hydraulic equipment

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