How to Order IFW5 10 N Diaphragm Style Flow Switch to 10 l/min NPT. Port size. Specifications. Contact. Port size

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1 Flow Switch Diaphragm Style Series IFW5 IFW Series Flow Switches detect and confirm flow. They are applicable to general industrial machines and various other applications. How to Order IFW5 N 3 Q Low flow setting possible ( l/min) Simple flow setting Without removing the cover, you can set it with a screwdriver from the outside. Diaphragm Style Flow Switch Flow range to l/min 2 to 2 l/min Light Without neon light With neon light (V AC, red) 2 With neon light (V AC, green) 3 With neon light (22V AC, red) 4 With neon light (22V AC, green) 5 2 to 5 l/min Terminal Box Thread Without Terminal Box (Contact: ab) N Rc(PT) NPT 2 With Terminal Box (Contact: ab) WithTerminal Box (Contact: 2b) F G(PF) Port size PAT. PEND 3 4 3/8 /2 6 3/4 Specifications Fluid Water, Non-corrosive liquid Operating pressure Proof pressure Operating temperature Operation Insulation Voltage proof Contact Port size Body Body material in contact Rod with fluid material Diaphragm When using, contact an SMC representative.. to.6mpa.2mpa 5 to 6 C Diaphragm MΩ (DC5) 5V AC for one min. Without Terminal Box: ab With Terminal Box: a or b 3/8, /2, 3/4 BC6 C364B NBR 3.4-

2 Series IFW5 Micro Switch Ratings Model Voltage 25V AC 25V AC 8V DC 4V DC 3V DC 25V DC 25V DC Non-inductive Load (A) Inductive load (A) Resistance load Lamp load Inductive load Motor load N.C. N.O. N.C. N.O. N.C. N.O. N.C. N.O Model Flow range (l/min) Max. flow Hysteresis () (l/min) (l/min) IFW5 to 2 or less IFW52 IFW55 to 2 2 to or less 3 or less Note ) Hysteresis is the flow rate that is necessary for moving the microswitch from the operation position (ON signal) to the return position (OFF signal). Construction/Operation Flow Characteristics IFW5 Pressure drop (MPa) IFW52 Pressure drop (MPa) P =.6MPa P =.5MPa P =.4MPa P =.3MPa P =.2MPa P =.MPa Flow rate (l/min) P =.6MPa P =.5MPa P =.4MPa P =.3MPa P =.2MPa P =.MPa Operation principles Liquid flow creates a pressure differential nearby the orifice of the port of the body. One set of diaphragms monitors the pressure differential and operates the micro switch through the rod w and operating lever r. The rod moves downward with increased flow, and upward with decreased flow. Moving the gear e upward or downward by the adjusting gear t manually offers an electric signal at various flow rates. Parts List No. Description q Body w Rod e Gear Material BC6 C364B POM No. r t Description Operating lever Adjusting gear Material SPCC POM IFW55 Pressure drop (MPa) Flow rate (l/min) P =.6MPa P =.5MPa P =.4MPa P =.3MPa P =.2MPa P =.MPa Flow rate (l/min)

3 Diaphragm Style Flow Switch Series IFW5 Dimensions IFW5 - - to 4 (Without Terminal Box) IFW5 - - to 24 (With Terminal Box) 3.4-3

4 Series IFW5 Internal Wiring Diagram IFW5 - -,, 2 Symbol Contact C COMMON A NORMALLY OPEN B NORMALLY CLOSED IFW5 - to 4, to 4, 2 to 24 Symbol Contact C COMMON A NORMALLY OPEN B NORMALLY CLOSED Color of Lead Black White Red Color of Lead Black White Red Precautions Be sure to read before handling. Refer to p.-26 and -27 for Safety Instructions and common precautions on the products mentioned in this catalogue. Caution Mounting Terminals qmount the switch so that the flow of liquid is in the same direction as that of the arrow on the body. wthe flow switch can be installed either horizontally or vertically. efor wiring, refer to the internal wiring diagram. rif a terminal box is not available, wire by selecting the contact at a or b. At that time, insulate the lead wires that will not be used. tbecause this is an open style, it cannot be used where water or oil splashes. yit cannot be used if a water hammer or pulsation pressure is applied to the fluid. uto prevent improper operation or diaphragm damage due to the presence of debris or cutting chip in the fluid, provide a filter of approximately mesh on the primary side of the flow switch. Caution Adjusting qto adjust flow, remove grommet of the upper cover and rotate flow adjusting gear using a screwdriver. (clockwise rotation: increase of adjusting flow rate, counterclockwise rotation: decrease of adjusting flow rate) walign the indicator needle to the graduation on the left side of the window name plate if the IN side pressure is.mpa, and to the graduation on the right side if the pressure is.2mpa. (Refer to Fig..) ethe flow rate setting point is set at the ON flow rate. Therefore, in the case of the a contact, the ON signal is output if fluid with a higher flow rate than the set flow rate has flowed. In the case of the b contact, the OFF signal is output when the flow rate has decreased from the set flow rate for the amount that corresponds to the hysteresis. rif the IN side pressure exceeds.2mpa, the setting cannot be made with the graduation on the window name plate. Therefore, perform the setting by installing a flow rate gauge on the secondary side of the flow switch. tto prevent the chattering that is associated with the fluctuation of the operating flow rate, set the difference between the set flow rate and the operating flow rate so that it is as large as possible. yuse at or below the maximum operating pressure and maximum flow rate

5 Flow Switch Paddle Style Flow Switch Series IF3 IF3 Series flow switches detect and confirm liquid flow, generally used in fields such as air conditioning, water supply equipment, etc. How to Order IF3 N Q Piping sizes range from 3/4 B to 6 B. Wide range of applicable fluids. Materials in contact with fluid: Copper alloy, Stainless steel Various enclosures (water proof). Standard style, Drip proof style, Splash proof style. Paddle Style Flow Switch Enclosure 2 Standard (Non water proof) Drip proof Splash proof Seal material NBR FPM Metal material in contact with fluid Copper alloy SUS34 ON flow range 4 to 6 l/min 2 to 5 l/min 3 36 to 26 l/min Thread Rc(PT) N NPT Port size 6 3/4 Note ) IF3 is available for "6". Note 2) IF3 and IF3 3 are available for "". Specifications Fluid Max. operating pressure Proof pressure Isolation Voltage proof Contact Port size Copper alloy SUS34 Water, Non corrosive liquid Liquid compatible with stainless steel MPa.75MPa MΩ (DC5) 5V AC for one min. ab 3/4, Micro Switch Ratings Non inductive load (A) Inductive load (A) Voltage Resistance load Light load Inductive load Motor load N.C. N.O. N.C. N.O. N.C. N.O. N.C. N.O. 25V AC 25V AC 8V DC 4V DC 3V DC 25V DC 25V DC

6 Series IF3 Fluid and Ambient Temperature Range Enclosure Fluid temperature Corresponding ambient temperature () Standard Indoor applications away from moisture 7 C or less 7C (7C ) or less 8 C 58C (6C ) or less 9 C 47C (5C ) or less C 35C (4C ) or less Note ) ( ) For IF32 Drip proof (JIS C92) Splash proof (JIS C92) Indoor or outdoor applications can tolerate water drip Sealed construction can tolerate hosing or salt laden atmosphere Construction Flow Characteristics List Fluid: Water, secondary pressure: MPa Sealing thread depth: 9mm( 3 / 4 ), mm() Flow Switch IF3-6 Mounting Port size Paddle size 3 / 4 3 / 4 Flow range (l/min) Minimum ON flow 4 8 OFF flow min 7 9 Maximum ON flow OFF flow min ON-flow rate/setting (meter/sec.) to to / to to.67 / to.67 / to to.6 IF3-2 / to to to , to ,5,3.4 to to 3.5 / to 2.67 Main parts list No. Description q Cover w Mounting plate e Bellows r Body t Mobile bar y Paddle u O ring Material IF3 IF3 IF32 SPCD SPCD ADC2 SPCC SUS34 PBP or SUS34 C364B or SUS34 C27W or SUSXM7 SUS34 NBR or FPM SUS34 IF3 3- / / ,,8 2,6 23. to to to to to.9,45.69 to ,.7 to 2.28 ON-flow: Switch point at increase of flow. OFF-flow: Switch point at decrease of flow. Maximum flow can be up to twice of ON-flow. Accurate operating flow depends on correct sealing depth and direction of flow

7 Paddle Style Flow Switch Series IF3 ON-Flow Change due to Pressure Pressure Drop Curve ON-Flow change (%) Min. ON-Flow Max. ON-Flow Pressure (MPa) Pressure drop (MPa) /4 Pipe Pipe 2,3 Pipe /4,4,5 Pipe /2,2 /2,6 Pipe Flow speed (m/s) Precautions Be sure to read before handling. Refer to p.-26 and -27 for Safety Instructions and common precautions on the products mentioned in this catalogue. Caution Mounting & Wiring qmount the switch on top of horizontal pipe so that fluid flow is in the direction of the arrow. Sealing depth should be 9mm±mm for 3/4 and mm±.2mm for. win terms of the direction of installation, this product can only be installed perpendicularly to the horizontal pipe. eprovide a straight pipe portion that corresponds to approximately 5 times the bore of the pipe before and after the area of the pipe on which the product is installed, thus keeping the product as far away as possible from the elements that disturb the flow, such as elbows or valves. rthree types of paddles, short, medium, and long, are provided with each model. Use one of them according to the pipe size and the set flow rate. tuse pipe fittings that comply with JIS specifications. For 3/4B to 3B, use commercially available union tees of different diameters. For 4B to 6B, use a B socket that has been cut in half and welded. Applicable Fittings For pipe fitting 3/4 through 3 For pipe fitting 4 through 6 Piping B Reducing Tees B X X / / 4 X 4 / 4 X / / 2 X 2 / 2 X 2 2 X 2 X 2 / 2 / 2 X 2 2 / 2 X 3 3 X 3 X Reducing tees: JISB23 Socket: JISB232 Pipe: JISB3452 Caution Adjusting qto adjust flow, remove grommet of the upper cover and rotate flow adjusting gear using the minus driver. (clockwise rotation: increase of adjusting flow rate, counterclockwise rotation: decrease of adjusting flow rate) wflow rate % relation to the number of turns is shown in the table below. However, this is just a guide. For precise setting use a flow meter. Number of turns Contact ON-Flow (%) ethe flow rate setting point is set at the ON flow rate. Therefore, in the case of the a contact, the ON signal is output if fluid with a higher flow rate than the set flow rate has flowed. In the case of the b contact, the OFF signal is output when the flow rate has decreased. Refer to the flow rate characteristics table for details on the operation flow rate. rdo not touch the two types of stop screws that are indicated on the construction diagram. tto prevent the chattering that is associated with the fluctuation of the operating flow rate, set the difference between the set flow rate and the operating flow rate so that it is as large as possible. yuse at or below the maximum operating pressure and maximum flow rate. uspare parts, medium, and long paddles are provided as a 3 piece set with each model, so arrange them as indicated below. There is no compatibility between the paddle for a 3/4 connecting bore and for a because their installation pitches differ. Arrangement example: Paddle set for IF3-6- yit cannot be used in case a water hammer or pulsation pressure is applied to the fluid. uwire the microswitch according to the symbols on the upper insulators. (They will be opposite the terminal symbols on the microswitch. The terminals are screw terminals.) Internal wiring diagram Symbol C A B Contact COMMON NORMALLY OPEN NORMALLY CLOSED 3.4-7

8 Series IF3 Dimensions Standard style: 3/3/33 Drip proof style: 3/3/33 Model Dimensions Connection A B C D E F Model Dimension Connection A B C D E F 3 / / IF3 IF3 IF33 Splash proof style: 32/32/323 IF3 IF3 IF33 Model IF32 IF32 IF Dimension Connection A B C D E F 3 /

9 Paddle Style Flow Switch Series IF3 Flow Speed 2 3/4B (ø2.6) B (ø27.6) /4B (ø35.7) /2B (ø4.6) 2B (ø52.9) 2 /2B (ø67.9) B (ø8.7) Flow Speed (m/s) B (ø5.3) 5B (ø3.8) 6B (ø55.2) Flow rate (l/min) ( ) : Gas pipe bore sizes 3.4-9

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