Type CCB311 Flow Switch - Brooks Instrument - #1

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1 Data Sheet DS-LP-CCB311-FS-eng November, 2009 DFaltoaw SShweitecht Type CCB311 Flow Switch Features and Benefits • Suitable for liquids or gases to meet Customers’- requirements • Low pressure allows switch to be placed in many locations without increasing pressure loss • Certified explosion-proof or intrinsically safe Description The flow switch CCB 311 is designed to detect low flows in horizontal or vertical pipes with an upward flow direction. The type CCB 311 flow switch is very robust with high repeatability and a very basic design. An articulated flap placed perpendicular to the flow, moves according to the flow changes. An extemal reed switch is activated by the magnet installed on the flap. (The magnet is protected from corrosive medium by a stainless steel jacket) An external housing contains the reed switch and connection terminal block for wiring. Construction This flow switch consists of: • A stainless steel 316L body • A stainless steel 316L flap • A stainless steel 316L diaphragm • The connection is made by stainless steel fixed flanges (Standard ISO PN NF EN1092 or ANSI B16-5) • Alarm contacts - 1 or 2 reed switches inside aluminium housing IP65 equipped with a packing gland - 1 or 2 reed switches inside explosion proof housing Ex dIIC T6 equipped with a packing gland - 1 or 2 reed switches inside housing Ex ia IIC T6 equipped with a packing gland Technical Characteristics Model CCB311 Horizontal Standard Operating Conditions Pressure: 16 bar / 232 psig Temperature: -30°C to +125°C /(-22°F to +1257°F) Contact Bistable reed switch contact (SPDT) Max. power 60VA/60W (resistive load) Max. current: 1A Max. voltage: 250Vac/Vdc (Double switch on request) (DPDT) DN Max. flow (1) (3) m3/h Liquid SG=1 Switching flow (1) (3) m3/h Liquid SG=1 Possible range of switching flow on request (2) (3) m3/h Liquid SG=1 HORIZONTAL VERTICAL HORIZONTAL VERTICAL 40 (1"1/2) 20 0.4 0.8 0.2 to 1.7 0.3 to 2 50 (2")* 20 0.4 0.8 0.2 to 1.7 0.3 to 2 65 (2"1/2) 35 0.6 1 0.3 to 2.4 0.35 to 3 80 (3")* 55 0.7 1.4 0.4 to 2.7 0.5 to 4 100 (4")* 85 1 2 0.5 to 3.8 0.6 to 6.5 125 (5") 132 1.5 3 0.8 to 4.8 1 to 8 150 (6")* 190 1.8 3.7 1.2 to 5.5 1.5 to 11.5 200 (8") 340 3.7 7.5 2.7 to 10 2.5 to 21 *Recommended DN Model CCB311 Vertical