MixRite TF 25 Proportional Dosing Injectors
Contents
1. 29999 KY CN cO AN oD VQ Uu A W J 0 A D LON 5 LAY NO FE 10 PARTS MIXRITE TF 25 001 28240100000 MIXRITE TF 25 002 28240200000 MIXRITE TF 25 005 28240500000 COMPONENT COMPONENT CODE COMPONENT NAME CODE 35001001301 34 35002151302 35 35003003103 36 35004001804 37 35005003305 38 35006001806 39 ADJUSTMENT NUT 35007001807 4 LATCH NUT 35008001808 41 YLINDER 196 MIXRITE TF 25 001 3503001610 42 RECORD NUT 1 CYLINDER 296 MIXRITE TF 25 002 35009026109 4 1 SEAL CYLINDER 5 MIXRITE TF 25 005 35010056109 4 CYLINDER SUPPORT SPACER 35016003810 4 INSIDE BASE 35011005211 LARGE EXIT VALVE 3 3501200111 CENTRAL VALVE 3 3501200111 TOGGEL FRAME 3501200111 4 TOGGEL 35015001115 5 TOGGEL PIN 35012001116 56 Z COMPONENT NAME COVER TF BODY 2 BSPT PISTON TF COVER NUT CYLINDER SUPPORT CYLINDER SUPPORT NUT C9 0 UI ui ui 22 I gt 5 BRIGE PIN 35012001117 58 VALVE BRIDGE PIN 35029001118 59 O RING 35X4 5 38035459219 O RING 24X4 38024409220 61 TOGGEL BEARING 35021001121 62 PISTON BAR 190 36016111103 63 PISTON BAR 296 596 3501300522 64 ORING 2 118 PISTON SLEEVE 35014001123 65 SUCTION PISTON 190 MIXRITE TF 25 0012. MixRite 25 DEMA Engineering Company 10020 Big Bend Blvd St Louis MO 63122 e PH 314 966 3533 www demaeng com sales demaeng com MixRite TF 25 Proportional Dosing Injectors We congratulate you on your purchase of one of 5 excellent products It is important to devote a few minutes to carefully reading the explanations and recommendations in this user s manual in order to get the most from the proportioning dosing injector Operation of the injector The proportioning dosing injector is fitted on the water line The flow of water passing through the injector activates it and causes the pumping of liquid additive and inserts it in a relative quantity into the water line The MixRite TF 25 proportioning dosing injector will operate in the following conditions The flow rate of the water passing through the MixRite TF 25 is between 2 and 25 m hour 530 6600 gal hour The water pressure is between 1 and 8 bar 14 120 PSI Head loss for MixRite TF 25 Minimum flow 0 1 Bar Maximum flow 1 5 Bar The water amp air temperature are not less than 4 C 40 F and not more than 40 C 1049F The flow rate of the additive can be adjusted relative to the flow rate of the water in the range of 0 1 to 1 for Model 001 and of 0 3 to 2 5 for Model 002 and in the range of 1 to 5 5 for Model 005 Installation of the injector Option A Wall mounting bracket Supplied as standard The package sho
3. cover seal fit the cover and thoroughly tighten the There is a cover locking nut leak from Remove the suction tube replace the defective the injector The leak is from the connection of the suction tube PT Dismantle the non return valve and replace the The leak is from the non return valve defective seal There is no The suction filter is blocked Clean the filter suction in Dismantle the injector unit and check if the suction seal is defective Replace the suction seal the additive inlet The non return valve is defective Replace the non return valve For advice technical support and purchase of spare parts contact the authorized sales representative in your area PARTS MIXRITE TF 25 001 28250100000 MIXRITE TF 25 002 28250200000 MIXRITE TF 25 005 28250500000 COMPONENT COMPONENT NAME CODE 35001001301 35002251302 35003003103 35004001804 CYLINDER SUPPORT 3500500330 3500600180 3500700180 35008001808 3503001610 35009026109 3501005610 10 3501600381 35011005211 35012001112 35012001113 3501200111 3501500111 3501200111 3501200111 3502900111 3803545921 3802440922 3502100112 3601611110 3501300522 3501400112 3503101422 3501702312 3501705312 3500001822 3500002822 SUCTION SEAL 5 MIXRITE TF 25 005 35000058225 35013005226 3700585200 38022060084 35023002229 3502400223 3802370923 3806061056 3802337923 35018003334 5 35018003335 COMPONENT COMPONENT NAME ae CHECK VALVE PISTON C
4. rest passes through the main line Using the choke valve on the main line the flow of water passing through the main line is regulated so that only A proportion of the flow passes through the bypass and activates the injector The metering must be calculated in accordance with the flow rate passing through both lines It is necessary to fit a main valve at the beginning of the line 1 water filter of 200 mesh 2 backflow prevention valve 3 must be fitted to a drinking water line according to local regulations in order to prevent entry of chemicals to the drinking water A pressure reducer 4 a T connection for diversion from the main line to the bypass a valve 5 on the bypass before the inlet to the proportioning dosing injector a valve 6 after the outlet from the injector on the bypass and a T connector for the return to the main line On the main line between the bypass junction and the return connection a choke valve should be fitted 7 preferably an angled valve to regulate the flow rates between the main line and the bypass After the return connection from the bypass there should be fitted anti vacuum valve 8 and valves for the branch lines 9 J __ gt enw u f b i A High pressure B Low pressure mW 7 o 2 b Y M f A Py 9 llo Installation of two injectors in parallel When the water flow rate in the irrigation line i
5. route To ease Insertion apply a little silicon grease to the end of the pipe Push the white ring until it contacts the threaded part and tighten the nut Repeat the process in order to connect the pump to the pipe on the other side Optional Special grip ring for P V C pipes Installation of the injector on a direct line It is recommended to fit a main valve at the beginning of the line 1 and a water filter of 200 mesh 2 A backflow prevention valve 3 must be fitted to a drinking water line in accordance with local regulations in order to prevent entry of chemicals into the drinking water Then place the following pressure reducer 4 to protect the injector from excess pressure a valve before the inlet to the injector 5 a valve after the outlet 6 an anti vacuum valve 7 to prevent a siphon effect when the injector is not working and operating valves 8 for the branch lines It is advisable to add a bypass pipe 9 that will permit diverting the water flow through the bypass pipe if there is a need for irrigation without any additives or for dismantling the injector Installation of the injector on a bypass line It is necessary to fit the proportional dosing injector on a bypass line when irrigating with a flow rate higher than 25 m hour The bypass enables only part of the water flow to pass to the Injector and activate it while the
6. siphon effect The normally closed hydraulic valve should be connected to a hydraulic command tube If the additive is pumped from inside ee an open tank diagram B a heavy EE COS weight should be attached to the end of the suction tube that will keep the E a opening of the suction tube inside 4 the additive and prevent the tube from floating and falling outside the tank Make sure that the level of the additive is always below the injector Otherwise uncontrolled flow of the additive may occur Hydraulic N C valve Adjustment of metering On the metering cylinder there is a scale indicating the percentage of additives When the injector is not operating and there is no pressure in the unit turn the adjustment sleeve clockwise to increase the amount of additive or turn counterclockwise to decrease the amount of additive The actual rate should be checked If necessary adjust by increasing or decreasing the adjustment sleeve Servicing The water filter at the inlet to the injector and the additive inlet filter should be cleaned frequently NOTE If it is planned not to use the injector for a long time it should be operated for a few minutes with the suction tube inside a tank of clean water in order to flush away traces of additive from inside the injector and prevent them from adhering to it If there is a drop in temperature below 4 C 4
7. 0 F risk or a risk of freezing the injector should be drained In order to drain the unit close the inlet and outlet valves properly Unscrew and dismantle the 1 coupling nut that connects the suction tube press on the non return valve insert your finger or a small rod in order to drain all the water trapped in the unit while pressing the air bleed valve at the top of the injector with your other hand Suggested maintenance Replace injection seals every 12 months Kit 1 seals 0 1 1 Catalog No 35000000008 Kit 2 TF seals 0 2 2 5 Catalog No 35000000002 Kit 3 TF seals 1 5 Catalog No 35000000003 Troubleshooting quide Problem Check Solution The injector is fitted with the arrows in the opposite direction to the Fit the injector with the arrows in the direction The injector water flow direction of flow does not The inlet and outlet valves are closed Open the valves work The inlet filter is blocked Clean the filter There is no water flow at the appropriate pressure Open the main valve Open the nut locking the motor cover remove the motor cover and Replace the motor seals The injector remove the mechanism Check if the motor seals are defective has stopped Check if the toggle springs are broken Replace the toggle springs working Ge e seals above the valves are defective or have been Replace the seals Open and remove the motor cover replace the The leak is from the connection between the body and the
8. 35031014224 SUCTION PISTON 290 MIXRITE TF 25 002 35017023124 67 SUCTION PISTON 590 MIXRITE TF 25 005 35017053124 SUCTION SEAL 190 MIXRITE TF 25 001 3500001822 71 SUCTION SEAL 2 MIXRITE 25 002 3500002822 72 SUCTION SEAL 5 MIXRITE TF 25 005 3500005822 73 OPERATION ROD 35013005226 74 Ring 12 2 37005852002 7 O RING 2 206 38022060084 NUT SS M6 38000001176 UPPER PISTON SEAL 35023002229 EASEL LEG PLUG 38000003277 LOWER PISTON SEAL 35024002230 FILTER 1 GREY 38000000173 O RING 2 370 38023709231 V7 INNER VALVE SPRING 38000001148 O RING 6X105 38060610561 O RING 2 112 38021129280 O RING 2 337 38023379233 81 V7 INNER VALVE LOCKER 35028001181 N ES EM Lo E EI EN EN EUN LA 11 MixRite TF 25 2 BSPT WW WN d ff Y N K A V 67 11111111 d W D y 4 NU III 69 67 63 st MO WW WU WW HIH J HWW UI d lt lt lt 7 Q ee lt v _e G RN a WY NNI CN tv lt A NO Lei WA N N A co y N aN L a d D CT t ON C OD e WO NO VN VU wW X gt 12 EEN
9. Connection of the suction tube tightened properly 2 3 CRS Coss Way s Y VO Bio A 2 E lt U LU WNEI 772 2 Connection of the injector to a 2 line Note the direction of the water flow Assemble the injector with the arrow stamped on the body of the injector pointing in the direction of the water flow Connect the injector using the plastic couplings For a drinking water line all injectors must have a backflow prevention valve installed in front of the injector on the main water line in accordance with local regulations Connection of the injector to 63mm plastic pipeline Note the direction of the water flow Assemble the injector with the arrow stamped on the body of the injector pointing in the direction of the water flow Cut and round the edges of the inlet and outlet pipes The distance between the end of the inlet pipe and the end of the outlet pipe should be 22cm Remove the 63mm nut and the white ring from the injector and fit them on to the pipe a short distance from the end Check that inside the injector there is the seal for 63mm accessories and that the bushing for the 63mm seal closes it from the outside Insert the pipe into the inlet and outlet opening and push hard so that the pipe penetrates and passes the seal and is stopped at the end of the
10. ONICAL SPRING FOR CHECK VALVE RING 2 211 38060221146 RING 2 132 RING 2 134 41 HECK VALAE NUT 42 ECORD NUT 1 43 1 SEAL 44 RECORD BODY 25X1 5 PRING 1 TF 7 LASSON SEAL 63 48 LASSON 63 LOCK RING 49 LASSON 63 NUT 0 R 35 CLIP 51 3 SEAL HOLDER 52 EJOTE SCREW WN 1412 S WASHER UCTION TUBE 25mm 4 5m RGE EX VALVE SPRING AIR RELEASE PRING 5 AIR RELEASER SCREW 36030284360 O RING 2 107 UT 3 4 RING 2 118 DALRIN RING 7 INNER VALVE MALL EXIT VALVE MALL EXIT VALVE SPRING ASEL LEG TF ASEL BRIDGE TF EX SCREW SS M8x45 UT SS M8 EX SCREW SS M6x35 UT SS M6 ASEL LEG PLUG ILTER 1 GREY 38000000173 7 INNER VALVE SPRING 38000001148 RING 2 112 38021129280 V7 INNER VALVE LOCKER 35028001181 z 2 H 36 37 38 ES CJ N N2 NI ool pr 0 S CO NO rri LA LA D 5 58 59 61 62 63 64 65 lt 67 71 72 23 74 75 76 77 78 79 m O lt x ri m gt 2 Op oz 0 gt U CJ A 81 MixRite TF 25 2 BSPT WA Ge WN M WI Au V MM CN O Oy
11. s higher than the maximum nominal flow rate of the injectors the water may be divided between two units If the 2 injectors are used for pumping the same type of additive the scales should be adjusted in an identical manner to the same level of metering Two different additives may be metered at different levels The metering in each unit must be calculated for each flow rate passing through the two injectors It is necessary to fit a main valve at the beginning of the line 1 water filter of 200 mesh 2 backflow prevention valve 3 must be fitted to 7449 a drinking water line according to local regulations in order to prevent entry of chemicals to the drinking water A pressure reducer 4 a T junction from the main line into 2 S lines 5 On each branch there ai should be fitted a regulation valve 6 the injector a non return valve 7 after the outlet from the injector T and a return connection to the main line 8 anti vacuum valve 9 Both sides of the instillation must be identical a Connection to the additive tank The suction tube should be connected to the additive tank preferably about 5cm above the bottom diagram A The liquid additive must pass through a chemical resistant filter of 200 mesh which must be cleaned regularly When making the connection to a large additive tank use a chemical resistant valve and a normally closed hydraulic valve to prevent a
12. uld contain A proportioning dosing injector to which are attached two couplings for a 63mm plastic pipe Or two 2 threaded couplings A flexible suction tube to which is attached a flat 1 seal and a filter A Bracket 4 SS screws M8 45 4 SS nuts M8 Spanner for TF cover nut User s manual Option B With stand Installation of the injector correct installation is with the stand supplied By Tefen OPTIONAL The package should contain gt A proportioning dosing injector to which are attached two couplings for a 63mm plastic pipe Or two 2 threaded couplings A flexible suction tube to which is attached a flat 1 seal and a filter A stand comprising 4 legs 2 arched braces 4 bolts with 8 mm nuts and 4 bolts with 6mm nuts Spanner for TF cover nut User s manual To assemble the stand Insert the narrow part of the leg into the opening in the tube in the arched brace Make sure that the holes in the leg are opposite the holes in the arched brace Insert the 6mm bolt and tighten the nut Repeat with the other legs Attach the arched brace to the body of the injector 1 with the 8 mm bolt 2 and tighten the nut 3 Repeat with the other arched brace the nut of the coupling on the end of the tube 1 Thread and tighten the nut to the inlet valve on the underside of the injector Make sure that the nut is Insert the flat seal into threaded and
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