Limit Switches - SWAGELOK - #1

Text version of the page

Limit Switches Materials of Construction Swagelok limit switches indicate the position of a valve by means of an electrical signal. The signal can also be used to actuate other components, such as fail-safe alarm systems. Features  Limit switch can be used with any Swagelok ball valve pneumatic actuator assembly and with manual 63, 65, 67, and 68 series ball valves.  Cam arrangement allows switch actuation at any point in valve cycle.  Cam position and switch sequence can be adjusted without tools.  Either switch can be adjusted independently of the other.  Self-lifting, captive pressure plates provide quick and secure electrical connections.  Stainless steel mounting bracket supports entire valveactuator- limit switch assembly.  O-ring seals for cap and shaft protect internal components from rain, dust, and oil.  Limit switch assembly meets specifications for NEC Class I (NEMA 7), Division I, Groups C and D; and NEC Class II (NEMA 9), Division I, Groups E, F, and G.  Limit switch is UL listed and CSA certified. Technical Data Temperature Rating –13 to 185°F (–25 to 85°C) Electrical Data Two switches; single-pole, double-throw circuit Electrical Ratings UL/CSA rating: L23 20 A; 120, 240, or 480 V (ac), inductive and resistive 1 hp, 120 V (ac); 2 hp, 240 V (ac) 0.5 A, 125 V (dc); 0.25 A, 250 V (dc) resistive Wiring Conduit should be installed in accordance with NEC 501-4 and 501-5. www.swagelok.com Buna N Component Material Housing Epoxy-coated aluminum Coupling Anodized aluminum Actuator bracket Stainless steel O-rings Limit switch Swagelok actuator Swagelok valve (60 series valve shown)