FLOW ALARM SWITCHES FLOW CONTROLS Flow switch for liquids with visual indicator The Riels RIV170 Series products are flow switches for liquids with a visual indicator of way (floating paddle),to generate an alarm of minimum/maximum flow rate,with a single value of intervention and SPDT output. Technical features Horizontal mounting Single switching unit (on request, two SPDT switches with simultaneous action can be supplied) Set point can be adjusted to between 10 ÷ 60% of max. flow rate (Q). Fixed differential for each set point with value variable between 20 ÷ 50% of max. flow rate (Q) Accuracy of flow indication: ± 15% of f.s Calibrating liquid: water Set point accuracy ± 5% of max. flow rate (Q) Max. temperature 130˚C Max. pressure 10 Bar Max. pressure drop 500 mm H2O Neoprene gaskets Standard "C" connections: flange UNI PN 10 / ANSI 150 RF - threads GAS/NPT-F. Flanges with higher ratings are supplied on request. All data and contents of this sheet are the exclusive property of Riels Instruments Carbon Steel body Paddle and Leverage On request, version in plastic (pvc - moplen - pvdf) can be supplied

Mercury Switch Loading rating Pneumatic Switch* 125 V c. a. 1 A 28 V c. c. 1 A Waterproof with gold contacts 250 V c. a. 1 A 24 V c. c. 3 A Sealed with inert gas PN = Brass PN1 = Stainless Steel *Air inlet and output connection 1/4” NPT-F - No bleed type Enclosures The (WP) enclosures can be supplied with cable or 3-pin/7-pin connector according to MIL standards. The (EP) enclosures can be supplied with explosion-proof gland. Type Explosion Proof Aluminium 1/2” NPT- F/GAS 3/4” NP- F/GAS ISO M20x1.5 IP 66 WP All data and contents of this sheet are the exclusive property of Riels Instruments Electrical...