BOOK A SERVICE FOR YOUR DISPENSER BOOK A SERVICE Contact me via Email Phone I will be sending my unit via Dropoff Courier Other (please note below in comments) Se-Tech model 1-32 2-32 2-50 Older model Identify your model here Submit Thanks for submitting!

SE-TECH DISPENSERS See also: DISPENSER OVERVIEW DISPENSER IDENTIFICATION SE-TECH 1-32 SE-TECH 2-32 SE-TECH 2-50 SERVICING YOUR DISPENSER DISPENSER FAQ SERVICING YOUR DISPENSER Se-Tech Dispenser Servicing and Support If you’re having issues, we recommend checking our Frequently Asked Questions. ​ For best performance and reliability, we recommend your Se-Tech Dispenser is serviced annually. ​ With an appointment we can turn your unit around in 24 hours or, by prior arrangement, we offer a 2 ½ hour turn around should you want to drop it off/pick it up in the same day. ​ To book a service Please phone 07 849 3108 or use or use our online booking form. ​ Please remember to include any additional instructions or requirements such as additional zinc passivators (is your present one in good repair?), suction hose or filter, or requests for a particular drop-off, pickup or service time. Packaging your Se-Tech Dispenser It is important the dispenser is packaged for protection when shipping by courier. ​ Experience has shown that units can get dropped or “stacked on” in transit and that more rigid packaging than the average “cardboard box” is really necessary in order to ensure the dispenser reaches its destination in one piece and undamaged. If packaging yourself, we strongly recommend multiple layers of padding with “FRAGILE” clearly marked on the packaging outer. ​ An alternative to disposable packaging, the Se-Tech Dispenser Transport Case is designed to protect dispensers in transit. Developed specifically to minimise shipping costs (both in weight and in volume), the case is made of light, rigid plastic, fits all current models and is fitted with easy to grab handles. ​ If ordered at the same time as a service (either when booking or via a note with the dispenser), we offer a 10% discount on the Dispenser Transport Case. Dispatching your Se-Tech Dispenser Send your unit (minus the manifold or pipe work) to: Singh’s Engineering Services, 66-68 Mahana Road, Te Rapa, Hamilton ​ Please ensure you include your phone number and contact name (and farm/company name, if appropriate) with your dispenser. ​ Servicing Dispenser services are performed in our purpose-built service department, located within the Singh’s Engineering Services workshop at Mahana Road. As the dispensers are manufactured in the same building, parts are always available. ​ In a regular service we will: Dismantle the unit Clean and check all running parts for corrosion and wear – replace or repair as appropriate Replace all worn seals Re-assemble and align the piston assembly Re-assemble the body and Check mounting plate, cylinder and end plate alignment Test the reassembled Dispenser at maximum and minimum rated flows and pressure ratings, for linearity of operation and proportionality of suction pickup. ​ ​ Service Reminders are sent to end user customers when your Se-Tech Dispenser is due for a service. If you are not receiving reminders please contact us. Parts Support All parts are available for Series 1-32 (and superseded) Se-Tech Dispensers: these units are designed for ‘on-site’ repair and all parts can be fitted/exchanged by the owner on-site. ​ Seal kits containing all seals are available direct from us or your local Se-Tech reseller. We recommend that dispensers are periodically returned to Singh’s Engineering Services for a service, where we’ll check for wear, corrosion and the alignment of running and body components. These faults, if left uncorrected, will affect accelerating wear and the performance and efficiency of your dispenser. There are no user-serviceable parts in the Series 2-32 and Series 2-50 Se-Tech dispensers: the units must be returned to Singh’s Engineering Services for servicing. ​ Help, Support and Advice Our may provide the answer you need, but if not we are available during working hours by phone (07 849 3108) or via if you need advice or help with your dispenser installation, operation or fault-finding. Frequently Asked Questions email ​ If you’re in the Hamilton region, please feel free to and see us! drop in ​ You can also view and download the following Operator Manuals for the 1-32 , 2-32 and 2-50. 1-32 MANUAL 2-32 MANUAL 2-50 MANUAL BOOK A SERVICE Contact me via Email Phone I will be sending my unit via Dropoff Courier Other (please note below in comments) Se-Tech model 1-32 2-32 2-50 Older model Identify your model here Submit Thanks for submitting!

SEND US YOUR INQUIRY SE-Tech Products Singh's Engineering Servicing Chlorinator Accounts Specials arrow&v Submit Thanks for submitting! CONTACT US +64 (7) 8493 108 +64 (7) 8493 108 66-68 Mahana Rd, Te Rapa, Hamilton, New Zealand

ESTABLISHED IN 1979 Proudly New Zealand owned. Manufacturing and Design Engineers, specialising in Stainless steel, with a wide range of experience in mild steel, aluminium, plastics, brass and copper materials. FARMING EQUIPMENT We manufacture the range of dispensers, water flow indicators, chlorinator and associated products for livestock and horticultural farming in New Zealand Se-Tech LEARN MORE LAB EQUIPMENT From custom Lab workspaces to 1-off machine trays and holders: we will build to your specifications or design and produce to your requirements ​ LEARN MORE FOOD PREPARATION We not only make Pots, Tea urns and Tandoori Ovens but also benches and bench tops custom designed for your workspace. ​ LEARN MORE STAINLESS STEEL MANUFACTURING C.A.D. design, prototyping, 1-off or high volume manufacture: our CNC machine tools, sheetmetal, press, and polishing shops stand ready ​ LEARN MORE SPECIALS AND PROMOTIONS Discounted, end-of-line and clearance products. ​ ​ ​ LEARN MORE

SE-TECH DISPENSERS See also: DISPENSER OVERVIEW DISPENSER IDENTIFICATION SE-TECH 1-32 SE-TECH 2-32 SE-TECH 2-50 SERVICING YOUR DISPENSER DISPENSER FAQ DISPENSER FREQUENTLY ASKED QUESTIONS The Dispensate Drum is back filling This is due to water bypassing around the non-return valve (NRV) at the bottom of the dispenser. On all units (Series 1 and 2) the dispensate hose plugs into a tapered nut, which is the seal for the non-return valve. If foreign particles build up on the seal on the inside of the nut or the non-return ball is unable to seal properly, then the dispensate drum will back fill. For all Se-Tech dispensers identification and repair is straight forward: Bypass the water supply around the dispenser Ensure the tapered nut can be seen (on Series 2 dispensers set dosing rate to 1) The hose is a friction fit to the nut, simply pull it out Unscrew the nut (hold the body immediately above when doing so) Inside the NRV there is a stainless steel weight, a ball (that does the sealing) and an o-ring fitted to the inside of the nut If backfilling, there is leakage either between this o-ring and ball, or between the o-ring and nut. Clean out any build up or material on the o-ring and/or ball. Both must be clean in order to seal properly Check the o ring is seated properly into the nut Check the ball is clean, round and in good condition Confirm the flat side of the weight is clean, without pitting or product build up Reassemble the NRV Weight goes in first, cross up (i.e. flat side to the ball) Ball goes in next Screw the nut containing the seal o-ring in place: HAND TIGHTEN ONLY Over tightening may cause damage to either the NRV nut or body, requiring replacement. Quality of water issues Please note that whilst we recommend pre-filtration for optimal equipment life in poor quality water situations, the Series 2 dispensers with their heavier seals and continuous wiping capability, will significantly out perform the series 1 dispenser. The filter in the manifold is a coarse filter, intended to stop twigs, pebbles etc from entering the dispenser. It will not stop silt, iron sand etc If large particulates are still passing the filter we have available a finer filter which may be of assistance. Please note that when using a finer filter it will be necessary to clean out the filter more regularly Please note when using river / stream water, rain after a long dry period will likely cause an increase in silt which is extremely abrasive. The use of your dispenser in these conditions will significantly increase wear and impact reliability I am going through a lot of Zinc passivators Under normal conditions a zinc passivator should last greater than 6 months. Some farmers have found that earthing their dispenser reduces the corrosion rate. For recommendations please Contact us. Why do you recommend the use of a Zinc weight? Different mixes of chemicals and water supply types can result in high electro-negativity build up which “picks” the chrome and nickel from stainless steel, and rots brass, copper and many other metals. This was a stainless steel NRV weight from a unit without a passivator: The Se-Tech zinc passivator is made of more than 99% pure zinc. This acts in the same way as a block of zinc bolted to a boat keel or an outboard motor, and will decay in preference to the materials in your dispenser and pipe fittings. We recommend checking your passivator weekly: if you observe decay order a replacement. Please Note: “Ordinary” cast or galvanised zinc products often contain cadmium and other products which may adversely affect animal health. We recommend using only the Se-Tech zinc passivator. Why do you recommend a 2 drum mixing set-up A setup reduces the abrasive and undissolved particles going through your dispenser and downstream components, maximising seal life and minimising wear. 2-drum mixing We recommend mixing your additives with water in the mixing drum and leaving until dissolved (1 to 24 hours depending on water and additives) When refilling the dispensate drum the solution is drained from the mixing drum into dispensate drum, leaving the heavy abrasive non-dissolved material behind. Some of this material over several mixings will dissolve and be used – dump out the heavy non-dissolved stuff periodically as appropriate Why do I need a lid on my drum? A drum lid stops foreign objects such as dirt or leaves getting into the container, which could block the filter, or if sucked into the system, will cause wear on your dispenser and downstream components such as valves, ball cocks etc Rainwater will dilute your mix, which will affect your dose rate I am replacing springs often (Series 1 Units only) This is most likely due to a worn main valve. See the for the location of this component. exploded diagram To check: Bypass water around the unit and remove the piston assembly There should be no more than 0.3mm clearance between the main valve guides and the inside of the piston (check this using feeler gauges) Should wear be greater than this, one or both of these parts will need repair/replacement: please contact us to arrange a service. Excessive water flow / pressure can in some cases result in broken main valve spring; confirm your water pressure and flow is less than 210 PSI and 6000 l per hour. The Drum level is not going down / Dispenser is not sucking Check the drum isn’t back filling – see “The Dispensate Drum is back filling” above. If your dispenser is a Series 2, the NRV is the only user serviceable component: please to discuss or . contact us arrange a service If your dispenser is a Series 1, the issue is most likely a worn concentrate seal or a non-functioning stop valve in the T-Bar. See the exploded diagram for the location of each of these components. The concentrate seal should be unworn – i.e. have a smooth taper on the outside surface without a step. See here to identify a worn vs good concentrate seal. Confirm the stop valve is clean and seals well against its seat, and that the hole through the T-Bar underneath the stop valve is clean and clear Unscrew the adjuster assembly from the bottom of the dispenser and confirm the inside of the stainless steel (‘adjuster’) tube is unpitted and free of product build up. This is the surface the concentrate seal runs up against, and so there must be a good fit between the two component to generate suction If product buildup is evident, clean the adjuster tube in warm water using a bottle brush and a cleaning product such as ‘Dynamo’ or dishwash liquid (not hot!) If the interior of the tube is pitted, replacement is required: the adjuster tube part number is 3228. Please see here for a parts list of the Series 1-32 dispenser. The dispenser has stopped going up and down Firstly confirm water is flowing through the dispenser. Open a tap downstream from dispenser, confirm that water is flowing and check if the dispenser cycles If there is little flow, check and clean the “Y” filter in the dispenser manifold (the last component before the quick release coupling at dispenser entry) If you have recently upgraded your pump / lines / water system, confirm that flow and pressure are still within the ratings for your dispenser. Manuals and specifications are found here: Series 1-32 Series 2-32 Series 2-50 Check the dispensate suction hose filter is clean and not clogged Has the dispenser been dismounted / serviced recently? If yes, alignment could be a problem Dismount the dispenser and place on a flat surface. If the dispenser “rocks” on its mounting brackets then it is out of alignment, which may cause jamming. We suggest Contacting us If it doesn’t “rock” (while still on the flat surface) put a square against the quick release coupling entry and then the exit: these should be at 90 degrees from the dispenser mounts. If not, the dispenser has become twisted and will require realignment – Contact us If your unit is a Series 1 dispenser and the piston assembly is locked at the bottom: There may be a build up of product in the adjuster tube – the concentrate seal may be locked into this. See checking the adjuster tube under the “Dispenser is not sucking” topic above If you have disassembled the piston assembly recently, the T-Bar may be misaligned. Contact us If your dispenser is “bouncing” or “hovering” at the top of its stroke firstly confirm water flow as above confirm the suction hose filter is clear – if blocked, there may be damage to the dispenser’s stop valve. If you have a series 1 dispenser see the for the location of this component. exploded diagram If you have a series 2 contact us to book a service Your main piston seal (or if a Series 1, additionally the clear cylinder) may be worn, allowing water to bypass around the outside of the piston assembly. Please Contact us There are 2 reasons for this to happen: either you have no or very low water flow – the 32mm unit requires at least 5 L per minute to operate, the 50mm unit requires 10 L per minute, or something has been sucked into the dispenser and has jammed the unit. If you have a Series 1 unit you can check this out yourself or send it into us. If you have a Series 2 unit send it in to us and we will check it out for you

SE-TECH DISPENSERS See also: DISPENSER OVERVIEW DISPENSER IDENTIFICATION SE-TECH 1-32 SE-TECH 2-32 SE-TECH 2-50 SERVICING YOUR DISPENSER DISPENSER FAQ SE-TECH 2-32 The Series 2-32 Se-Tech Inline Liquid Dispenser has 1-¼” BSP (“32mm”) connections and is suitable for water flows up to 6000 litres per hour at pressures from a “gravity feed” 10 PSI to “hill country” 210 PSI (0.7-14.3 bar). ​ As an indication of capacity, we expect the Series 2-32 dispenser would be suitable for a farm of up to 600 milking head. ​ In production since 2007, the Series 2-32 was developed following requests for a dispenser that could handle poor farm water conditions, such as water containing higher particulate levels (such as manganese, pumice or silt) or hard water (generally, laden with iron). ​ As a consequence, the Series 2 series of dispensers have very wide, flat seals, running on the outside of the piston assembly, in order to provide maximum seal area to minimise overall wear, whilst “wiping” the running surface clean of contaminants and extending life. ​ Customer feedback during testing resulted in a doubling of suction throughput on the Series 2 range vs. the Series 1 units. An addition rate (“suction” rate) of up to 2% by volume can normally be achieved with a Series 2-32 dispenser. ​ The dispenser operates only on water flow – no power source is required. This makes for minimal installation requirements, as the 2-32 can be easily installed anywhere there is a water line and a vertical, rigid wall. ​ Note: Due to the very wide running seals in the Dispenser, rigidity and alignment are both essential on installation in order to maximise seal and operation life. Whilst longer running life will be achieved with cleaner supply water and dispensate (i.e. the less “grinding paste” the machine processes, the longer it will last), this 2-32 dispenser is designed to tolerate and work with less-than-ideal water supplies and/or more abrasive additive materials such as zinc or magnesium chloride. Of course, the less “grinding paste” the machine processes, the less wear will occur and so running costs will be minimised. ​ The Series 2-32 dispenser is shown with the optional pipework manifold. ​ This provides an inline coarse (mesh) filter, a non-return valve, isolation and bypass valves, along with quick-release couplings between the manifold and the dispenser proper. This makes it simple to install the dispenser, then consequently bypass the Se-Tech and/or remove the dispenser for servicing, without interrupting the properties’ water supply. ​ Over 98% of all Series 2 Se-Tech dispensers are sold with the optional pipework manifold. ​ We recommend an annual service for all Se-Tech dispensers: our busiest service period is found when farms are dried off and the requirement for animal health supplements is at a minimum. ​ Due to the wide running seals in the 2-32 dispenser, alignment on reassembly is critical: as a consequence, the Series 2 dispensers require a return to our manufacturing facility for servicing. ​ Our offer service turnaround times from overnight to less than three hours with a booking: please call us on 07 8493 108 or us to confirm a service booking. full service facilities email ​ The Series 2-32 Se-Tech Inline Liquid Dispenser installation, setup and operation manual can be found (PDF format). here ​ Frequently asked questions regarding operation can be found . here ​ Should you have any questions regarding the most appropriate size or model of dispenser for your installation, please email, call or drop in to see us. ​ As with all Se-Tech products, Singh’s Engineering Services proudly designs, manufactures and services all Se-Tech Inline Liquid Dispensers in Hamilton, New Zealand.

SE-TECH DISPENSERS See also: DISPENSER OVERVIEW DISPENSER IDENTIFICATION SE-TECH 1-32 SE-TECH 2-32 SE-TECH 2-50 SERVICING YOUR DISPENSER DISPENSER FAQ SE-TECH 1-32 The Series 1-32 Se-Tech Inline Liquid Dispenser has 1-¼” BSP (“32mm”) connections and is suitable for water flows up to 6000 litres per hour at pressures from a “gravity feed” 10 PSI to “hill country” 210 PSI (0.7-14.3 bar). ​ As a sizing indication, the Series 1-32 dispenser would be suitable for installations from small runoffs to a maximum of 600 milking head. ​ The Series 1-32 has been in continuous production since 1993: all developments made since its introduction are fully retrofittable to all units. ​ As the dispenser operates only on water flow – no power source is required – the 1-32 dispenser can be easily installed anywhere there is a water line, whether in a pump shed, on the side of a building or, as we’ve seen more than once, bolted to a fence post! ​ Note: If mounting outside, we do recommend the dispenser be installed in a shaded area to minimise exposure to UV: a galvanised iron “sunshade” works very well. ​ ​ This dispenser is suited to installations where a clean water supply is assured (no abrasives in the water supply) and products to be dispensed are well mixed to minimise abrasiveness. ​ The Series 1-32 dispenser is shown with the optional pipework manifold. ​ The pipework manifold includes an inline coarse (mesh) filter, a non-return valve, isolation and bypass valves, along with quick-release couplings between the manifold and the dispenser proper. This makes it simple to install the dispenser, then consequently bypass the Se-Tech and/or remove the dispenser for servicing, without interrupting the properties’ water supply. ​ Over 90% of all Se-Tech dispensers are sold with the optional pipework manifold. ​ The Se-Tech Series 1-32 dispenser is designed with the Kiwi Farmer in mind: all parts are available and can be fitted/exchanged by the owner on-site. However we do recommend that all dispensers are periodically sent into us for a service where we will check all parts for wear, runout and alignment. ​ Parts can be ordered by or by phoning us on 07 8493 108 of the unit (PDF format) for quick reference. email here is an “exploded” parts list are of course available via our workshop: we offer service turnaround times from overnight to less than three hours with a booking: please call us on 07 8493 108 or us to confirm a service booking. Full service facilities email ​ The Series 1-32 Se-Tech Inline Liquid Dispenser installation, setup and operation manual can be (PDF format). found here Frequently asked questions regarding operation can be found . here ​ As with all Se-Tech products, Singh’s Engineering Services proudly designs, manufactures and services all Se-Tech Inline Liquid Dispensers in Hamilton, New Zealand.

SE-TECH DISPENSERS See also: DISPENSER OVERVIEW DISPENSER IDENTIFICATION SE-TECH 1-32 SE-TECH 2-32 SE-TECH 2-50 SERVICING YOUR DISPENSER DISPENSER FAQ SE-TECH 2-50 The Series 2-50 Se-Tech Inline Liquid Dispenser has 2” BSP (“50mm”) connections and is suitable for water flows up to 13000 litres per hour at pressures from a “gravity feed” 10 PSI to “hill country” 210 PSI (0.7-14.3 bar). ​ As an indication of capacity, we expect the Series 2-50 dispenser would be suitable for a farm of up to 1250 milking head. ​ In production since 2005, the Series 2-50 was developed following requests for a high-capacity dispenser that could handle poor farm water conditions, such as water containing higher particulate levels (such as manganese, pumice or silt) or hard water (generally, laden with iron). ​ As a consequence, the Series 2 dispensers have very wide, flat seals, running on the outside of the piston assembly, in order to provide maximum seal area to minimise overall wear, whilst “wiping” the running surface clean of contaminants and extending life. ​ Addition rates (“suction” rate) of up to 2% (dependant on dispensate viscosity and density) by volume can normally be achieved with a Series 2-50 dispenser. The dispenser operates only on water flow – no power source is required. This makes for minimal installation requirements, as the 2-50 can be easily installed anywhere there is a water line and a vertical, rigid wall. Note: Due to the very wide running seals in the Dispenser, rigidity and alignment are both essential on installation in order to maximise seal and operation life. ​ Whilst longer running life will be achieved with cleaner supply water and dispensate (i.e. the less “grinding paste” the machine processes, the longer it will last), the 2-50 dispenser is designed to tolerate and work with less-than-ideal water supplies and/or more abrasive additive materials such as zinc or magnesium chloride. Of course, the less “grinding paste” the machine processes, the less wear will occur and so running costs will be minimised. ​ The dispenser is shown with the optional pipework manifold and an integral mounting bracket is additionally available. The manifold provides an inline coarse (mesh) filter, a non-return valve, isolation and bypass valves, along with quick-release couplings between the manifold and the dispenser proper. The integral welded stainless steel bracket both holds the manifold in alignment to the dispenser, and simplifies installation of the assembly, providing a flat, rigid surface to the mounting face. This combination makes it simple to install the dispenser, then subsequently bypass the Se-Tech and/or remove the dispenser for servicing, without interrupting the properties’ water supply. ​ Over 95% of all Series 2-50 Se-Tech dispensers are sold with the optional pipework manifold and mounting bracket. We recommend an annual service for all Se-Tech dispensers: our busiest service period is found when farms are dried off and the requirement for animal health supplements is at a minimum. ​ Due to the wide running seals and significant piston weight in the 2-50 dispenser, alignment on reassembly is critical: as a consequence, the Series 2 dispensers require a return to our manufacturing facility for servicing. ​ Our offer service turnaround times from overnight to less than three hours with a booking: please call us on 07 8493 108 or us to confirm a service booking. full service facilities email ​ The Series 2-50 Se-Tech Inline Liquid Dispenser installation, setup and operation manual can be found (PDF format). here ​ Frequently asked questions regarding operation can be found . here ​ As with all Se-Tech products, Singh’s Engineering Services proudly designs, manufactures and services all Se-Tech Inline Liquid Dispensers in Hamilton, New Zealand.

SE-TECH DISPENSERS See also: DISPENSER OVERVIEW DISPENSER IDENTIFICATION SE-TECH 1-32 SE-TECH 2-32 SE-TECH 2-50 SERVICING YOUR DISPENSER DISPENSER FAQ IDENTIFY YOUR DISPENSER All Se-Tech dispensers are primarily identified by the size of their inlets and outlets: ​ The 50mm units have 2” tri-clover (quick-release) couplings on their Stainless Steel endcaps The 32mm units have 1-¼ ” BSP threaded holes in their endcaps – and will usually have 1-¼ ” BSP tri-clover (quick-release) couplings screwed into them The 19mm unit (no longer in production) had ¾” BSP threaded holes in the top and the bottom of its endcaps For all Se-Tech dispensers, can be carried out same-day, or in less than 3 hours while you wait. pre-booked services CURRENT MODELS SERIES 1-32 ​ The Se-Tech has blue mounting plates (where it is screwed to the wall), black or (on very early models, gray) endcaps with (as above) 1-¼ ” BSP threaded holes in the side of its endcaps. Dispensate suction throughput is changed by winding the knurled knob at the bottom of the unit up and down. Series 1-32 ​ Parts and are available for this unit. Servicing SERIES 2-32 ​ The Se-Tech has blue mounting plates (where it is screwed to the wall), with longer black endcaps than the Series 1 and with 1-¼ ” BSP threaded holes in the side of its endcaps. Series 2-32 ​ Dispensate suction throughput is changed via the 5-position “gearshift” at the bottom of the unit. ​ for this unit is available at our manufacturing facility. Servicing SERIES 2-50 ​ The Se-Tech has Stainless Steel (silver in colour) mounting plates (where it is screwed to the wall) and endcaps, with 2” tri-clover couplings on the side of its endcaps. Dispensate suction throughput is changed via the 5-position “gearshift” at the bottom of the unit. Series 2-50 ​ for this unit is available at our manufacturing facility. Servicing SUPERSEDED MODELS The Se-Tech 19mm dispenser was sold from the late 1980’s until the early 2000’s. It is distinguished by blue mounting plates (where it is screwed to the wall), thinner endcaps than the 32mm units with water inlet and outlet in the bottom and top of the caps, rather than on the side as in all other Se-Tech dispensers. The Series 1-50 Se-Tech was sold from the late 1990’s until the early 2000’s. It has Stainless Steel (silver in colour) mounting plates (where it is screwed to the wall) and endcaps, with 2” tri-clover couplings on the side of its endcaps (a very few early models had 2” BSP sockets rather than the tri-clover couplings). Dispensate suction throughput is changed by winding the knurled knob at the bottom of the unit up and down. All parts are stocked and remains available for both superseded dispenser models below. Servicing

SE-TECH DISPENSERS See also: DISPENSER OVERVIEW DISPENSER IDENTIFICATION SE-TECH 1-32 SE-TECH 2-32 SE-TECH 2-50 SERVICING YOUR DISPENSER DISPENSER FAQ SE-TECH DISPENSER OVERVIEW Se-Tech Automatic Inline Liquid Dispensers dose water systems with chemicals, minerals and nutrients, minimising or eliminating drenching and reducing manual labour requirements. Using a dispenser reduces labour costs, decreases worker exposure to chemicals and improves herd health. ​ All Se-Tech dispensers operate solely on water flow – no power source is required – and are designed and manufactured in our workshop in Hamilton, New Zealand. Applications include Animal Health / Medication Treatments (e.g. prevention of Facial Eczema, Bloat) Horticulture Hydroponics Viticulture Wash/CIP detergent injection Industrial and Commercial uses Proportional addition/mixing (into water) ​ ​ Our dispensers dose or add chemicals proportionally, so that whether a trough is being filled from empty, is topping off slowly on a ballcock, or a new section of piping is opened up, the percentage of materials added to the water supply remains the same. IDENTIFY YOUR DISPENSER Not sure what version of Se-Tech dispenser you have? Go to identify your exact model... here SPECIFICATIONS AND MODELS Se-Tech dispensers are rated for operational pressures from 10 PSI to 210 PSI (70-1450 kPa), so are suitable for wide ranges of installations from gravity-fed, to hilly or extremely long-run piping systems. ​ Se-Tech dispensers are currently available in two sizes and two models. ​ The dispenser is our base model. In continuous production since 1993, it is suited for installation in a clean water supply dispensing low abrasion materials at flow rates up to 6000 litres per hour. Series 1-32 ​ Available since 2005, the dispenser (shown here with optional manifold) is our standard model, handling more abrasive materials than the Series 1-32 model. It is suited for farming, horticultural and industrial installations at flow rates up to 6000 litres per hour. Series 2-32 ​ The is our largest model, being tolerant of more abrasive materials and suited for installations at flow rates up to 13,000 litres per hour. Series 2-50 dispenser ​ Singh’s Engineering have been manufacturing dispensers since the late 1980’s: parts are held and is available for all Se-Tech dispenser models, including models no longer manufactured. servicing ​ If you have an existing Se-Tech Dispenser installation, our page may be of help – or we are available via or Frequently Asked Questions email phone. Our Frequently Asked Questions page may be of help - or we are available via or email phone DISPENSER FAQ See also: WATER FLOW INDICATORS CHLORINATORS