エイチツー List of Products and Services

●Chemical Injection in Newly Installed Wastewater Treatment Equipment In the wastewater treatment of a painting factory, our chemical micro-injection pump has been adopted by the plant manufacturer for injecting chemicals into the wastewater pit. The M-type diaphragm pump is also performing well in sites where reliable chemical injection is required. ●Delivery of Mixers and Tanks Please consult us about all equipment related to chemical injection, such as chemical storage tanks and mixers. We will provide the best proposal tailored to the conditions of the site.

● pH adjustment of manganese phosphate cleaning water We received an order for a chemical dosing pump from a user who is a loyal customer of our air diaphragm pump. Although most of the existing pumps were from other companies, the performance of our air diaphragm pump was recognized, leading to its adoption. It is operating stably for the purpose of injecting caustic soda to neutralize the cleaning water. ● The chemical inlet is equipped with a lock for safety considerations. We also adopted a chemical tank (PVC, 50L) and, at the user's request, the chemical inlet is secured with a lock. We can flexibly accommodate the user's desired dimensions and specifications even for PVC tanks.

Here is a case study of transporting factory wastewater at a pharmaceutical small-scale packaging factory in the Chubu region. The company consulted us about the mixing of caustic soda, dilute sulfuric acid, and sodium hypochlorite in the cleaning wastewater, and we proposed and adopted the "LC series" submersible pump, which can handle various chemical liquids. Additionally, we supported float specifications with a liquid level controller, contributing to the automation of the neutralization process that had previously been done entirely manually. [Case Overview] ■ Client: Pharmaceutical factory in the Chubu region ■ Application: Transport of factory wastewater ■ Model: Corrosion-resistant submersible pump LC *For more details, please refer to the PDF document or feel free to contact us.

● Self-priming and pumping of high-viscosity slurry We received an inquiry from a major chemical company, Company S, regarding the transfer of ceramic slurry. Ceramic slurry is a high-viscosity liquid with particle inclusion, and this time, self-priming capability and pumping capability were also part of the evaluation. We proposed the ADD model air diaphragm pump, which was used on-site. The evaluation was very positive, and the on-site personnel were convinced, leading to its adoption. ● Key factors for adoption by a major chemical company The key factors for adoption were: 1. Initial costs are lower compared to other companies. 2. Flexible response as a manufacturer to special specifications. 3. Consumables (such as diaphragms) are also cheaper compared to other companies. 4. High evaluation of transfer and pumping capabilities with the demo unit. Based on the above four points, it was adopted. The features of the diaphragm pump are "self-priming," "pumping capability," and "ability to transfer slurry and viscous liquids." We also have demo units available, so please feel free to contact us.

●Quantitative Injection of Liquid Fertilizer We received an order for a liquid fertilizer mixing unit from an agricultural equipment manufacturer to quantitatively inject liquid fertilizer. Previously, the amount of liquid fertilizer injected by other manufacturers was inconsistent, leading to variations in dilution rates. However, by switching to our quantitative pump, the injection amount has become significantly stable, allowing for precise control over the dilution rate of the liquid fertilizer, which greatly impacts the crops. ●All Piping and Pressure Gauges Assembled We provided and delivered all piping (50A), pressure gauges, and frames (SS + painted) fully assembled. Previously, this work was done by craftsmen on-site, but by modularizing it, we successfully reduced labor costs and significantly lowered the total cost. The performance, as well as the cost advantages compared to other companies, led to our adoption.

●For the precise injection of small amounts of neutralizing agent (caustic soda). We received an order for a pH automatic neutralization treatment system from Company A, a major glass manufacturer. H2's pH automatic neutralization treatment system is equipped with our own devices, and the quantitative injection pump is also adopted from our company. ●Accurate injection of small amounts below 10 mL/min. The injection of caustic soda required a small amount of injection below 10 mL/min. Additionally, the operation is batch-type, and due to the infrequent nature of the site, responsiveness and recovery in case of air contamination were concerns. H2's quantitative diaphragm pump optimizes the volume change rate of the pump head and the diaphragm shape, achieving both prevention of air lock and quantitative performance, thus enabling precise injection even under severe conditions.

●Making small-scale sewer pipe work easier We received an inquiry from Company T in the Kanto region, stating, "We want to make the pressure delivery of the chemical solution easier for the chemical injection method aimed at stopping water underground." The chemical solution requires mixing equal amounts of water glass and hardener underground, necessitating corrosion resistance, pressure, and metering capabilities. ●Smaller and lighter than before. Easy to handle! Previously, a large electric diaphragm pump (weighing over 100 kg!) was used, which caused significant difficulties even at simple job sites. However, with H2's air diaphragm pump, it weighs 1/5 of the original, is less than half the size, and can perform the same work as the conventional product. Since it is air-driven by a compressor, it has been rated higher in terms of workability and safety compared to conventional products. The previously concerning "metering capability" was also resolved by adjusting the flow rate at the air input to maintain the same "air supply amount." Mixing the two liquids (in equal amounts) was not an issue either. Cleaning the pump after delivery is also easy, and we received positive feedback in all aspects compared to conventional products.

We received an inquiry from a major chemical manufacturing company wanting to transfer the same type of chemical solution from various tanks. Based on the Chemical Magnetic Pump HTX, we manufactured and delivered a custom specification. Since there were three different piping configurations for delivery from the tanks, we prepared three types of suction attachments to facilitate easy connections from various tanks. Instead of being used in a fixed installation, we proposed a design that allows for easy attachment and detachment using couplers, anticipating use at various sites. We refined the specifications so that one pump could be reused for different transfers. By placing the Chemical Magnetic Pump HTX and the piping on a single cart, we made it easier to handle. For transferring chemical solutions to and from tankers, as well as between various tanks, if you want to manage transfers from various sites and tanks with a single pump, please consult with H2. We are happy to manufacture custom specifications as well. [Case Study] ■ Delivery: Major chemical manufacturer ■ Application: Transfer of chemical solutions (from tanker to various tanks and vice versa) ■ Model: HTX type *For more details, please refer to the PDF document or feel free to contact us.

●I want to transport delicate ice without breaking it. We received an inquiry from a device manufacturer in Mie Prefecture asking if it was possible to gently transport fine ice using a DC drive. We proposed using the DC type of H2's electric diaphragm pump and promptly conducted a demonstration. ●The ice remains intact. With the pulsation-free diaphragm pump from major manufacturer T, the ice was damaged, and the cost was also high. Initially, Company N had doubts about using a diaphragm pump, but the results of the demonstration were astonishing. Since Company N's device is designed to produce fine ice, it was absolutely essential that the ice not be damaged during transport. However, with the SS model, we were able to transport the ice without any damage at all. Company N expressed their satisfaction, saying, "Costs have decreased, and we are very pleased with the results."

In the wastewater treatment of surface treatment factories, pH adjusters (caustic soda, dilute sulfuric acid) and coagulants (PAC) have been adopted by plant manufacturers for injection purposes. The NSD-type diaphragm pump is also active in sites where precise chemical injection is required. Additionally, H2 can supply a complete set of peripheral equipment associated with the pump. This time, we achieved space-saving by placing the pump and mixer on the chemical tank. We also select various equipment related to chemical injection, such as chemical storage tanks and mixers, so please feel free to consult us if you have any questions. We will provide suitable proposals based on the site conditions. 【Case Details】 ■ Delivery: Surface treatment factory in the Kansai region ■ Application: Chemical injection for wastewater treatment equipment ■ Model: Chemical dosing pump "NSD-60" *For more details, please refer to the PDF document or feel free to contact us.

●I want to transport different types of liquids with one pump! We received an inquiry from Company T in the Kanto region, stating, "We want to transfer curing agent A and liquid B with one pump." The chemicals need to be mixed in equal amounts, with water glass and curing agent, and it was necessary to ensure corrosion resistance, pressure, and accurate dosing. By welding the connector on the suction and discharge sides of the photo department to seal it, we changed the structure so that the fluid drawn in from one side of the head is discharged alone without merging. ●A site that needed two pumps can now operate with just one! A site that previously used two pumps for transfer can now operate with one, achieving cost reduction and space-saving. There have been no issues due to the single-sided head design, and it is operating smoothly.

● Due to the failure of an overseas chiller, we received an order for an update of the cooling system. The chiller (made in Italy) used by the customer broke down, and since the repair would incur significant costs, they requested an update of the cooling system, including the chiller. The cooling water is used after the heating process when turning waste plastic into pellets, so overall temperature management and reliable pump transfer were required. ● Using a Magnet Pump HT type for cooling water circulation. The chiller was updated to a Hitachi model, and a Magnet Pump HTX-440 was used for the transfer from the PE cushion tank, the return from the heat exchanger, and the transfer to the cooling tower. It serves as the core of the system due to its durability and reliable transfer capabilities. Additionally, at the customer's request, to regularly maintain against resin pellet blockages, inline strainers were installed in various parts to improve maintainability.

● Using HT type for urea water transfer With the upgrade of the specifications of the urea water transfer device that we have been using, we designed and manufactured the device in-house. It was particularly required to have high accuracy for the sale of urea water (AdBlue), and since a flow rate of over 200L/min was desired, we selected the magnetic pump HTX-441P and completed it as a compact device. To prevent erroneous detection of the flow meter due to air mixing, we devised the piping line and placed multi-joints in various locations for easy maintenance. A strainer was installed to prevent foreign matter contamination, as this is for the urea water used in truck SCR systems. We incorporated all the requests from the transportation company. ● Designed with consideration for installation on tank trucks, including vibration resistance and heat dissipation For use on tank trucks, we equipped the device with vibration-damping rubber to account for severe vibrations. To achieve stable operation even in harsh outdoor temperatures, we installed louvers near the magnetic pump. A recording device capable of issuing receipts is equipped on the right side of the front of the device. By turning the switch ON, it is possible to easily issue a receipt for the most recent flow rate.

●Delivery while checking the flow rate with a dedicated AdBlue (urea water) pump. Conventional handheld pumps are expensive and prone to breakdowns. Listening to such feedback from users, the AdBlue (urea water) dedicated pump model SN was created. - Affordable pricing with a flow meter included - More powerful than handheld pumps, with a flow rate of 50L/min - Self-priming (can run dry), resulting in fewer breakdowns - Gently delivers liquid with a diaphragm, eliminating sliding parts, which reduces the risk of foreign material contamination due to wear. ●Flow management is possible with the included flow meter The flow meter allows for easy verification of the amount delivered when supplying AdBlue (urea water). It comes with a stainless steel frame for IBC tanks, and installation is as simple as placing it on top. Just connect the suction inlet (shown in the photo) to the IBC tank, and once the power is turned on, the transfer will begin.

We received a request from a chemical plant stating, "We would like to transfer wastewater containing high concentrations of phosphoric acid from the process storage tank using a submersible pump." Since they prefer a solution without major construction and with a float switch on a 100V single-phase system, we proposed our corrosion-resistant submersible pump model LC-251-S. They mentioned that a flow rate of about 10L/min would be sufficient, but since the pump is somewhat over-spec, we suggested adjustments using a discharge-side valve. 【Case Overview】 ■ Issues - They want to transfer wastewater containing high concentrations of phosphoric acid from the process storage tank using a submersible pump. - The currently used submersible pump quickly suffers from impeller corrosion and failure due to acid. ■ Proposal - Adopt our corrosion-resistant submersible pump model LC-251-S. - Since the pump is somewhat over-spec, we suggested adjustments using a discharge-side valve. *For more details, please refer to the PDF document or feel free to contact us.

●Failure of the bonding liquid circulation filtration pump There are many failures of air diaphragm pumps - (The item marked with a red circle in the photo is the defective product.) We received a consultation from the maintenance department, and it was noted that the existing pumps from a certain manufacturer had frequent failures, leading to consideration of switching to the H2 model ADD type. The liquid used is bonding liquid (manganese phosphate) which is high temperature and contains slurry. The flow involved drawing from the bonding tank, passing through filtration, and circulating it. After thorough inquiries with the users, it was found that the valves and valve seats were experiencing significant wear due to the slurry. Additionally, considering that SUS (stainless steel) materials tend to have a relatively longer lifespan, we proposed and adopted a specially designed SUS valve seat. ●For those troubled by failures of other companies' pumps The deciding factors for adoption were: 1. The initial cost is overwhelmingly low. 2. The manufacturer’s ability to flexibly respond to special specifications. 3. The option to verify the lifespan of the ball material against the SUS valve seat. 4. Good maintenance characteristics. These four points were evaluated, leading to the adoption. At H2, we provide liquid contact parts arranged for the site as described above.

We have delivered a dispenser that can be operated remotely via a remote control to a fuel wholesale company. The customer extends the hose, inserts the nozzle into the water supply point, and starts the water supply. However, there was a concern that if the nozzle was not securely fixed at the water supply point, it could come loose and leak. Therefore, there was a need for someone to hold the nozzle by hand while supplying water. With this device, the dispenser can be turned ON and OFF using the remote control, allowing the user to start the water supply while supporting the nozzle. Our company specializes in manufacturing custom devices based on our users' "wants." 【Case Details】 ■ Delivery: Fuel wholesale company ■ Application: Remote dispensing from a vehicle ■ Model: HTX-440 *For more details, please refer to the PDF document or feel free to contact us.

●Transporting AdBlue in Explosive Areas We want to transport AdBlue quickly and reliably. After receiving inquiries from users, we proposed an air diaphragm pump, which was adopted. - We want to transport from a 1000L storage tank (IBC tank) quickly. - We want self-priming capability and to ensure no residual liquid remains. - We want to transport AdBlue gently without stirring the liquid. - We want to use high-pressure air as the power source so it can be used in explosive areas. - We want the installation to the tank to be simple. All of the above requirements were met, and it was adopted. ●For any inquiries regarding AdBlue pumps and equipment, please feel free to consult us. In explosive areas, electric pumps become explosion-proof and expensive. We want to issue receipts as a simple dispenser. Is there a better pump than the handheld type we are currently using? When it comes to transporting AdBlue, if you have specific ideas but no place to consult, please feel free to reach out to H2!

● A handheld pump for drums cannot transfer high-viscosity liquids! We received an inquiry from a chemical manufacturer who wanted to transfer a polymer coagulant (diluted). After the chemical manufacturer filled three types (three compartments) of chemicals into a PE tank, the user was to transfer the coagulant from each chemical solution, as shown in the photo. They also expressed a desire to transfer the liquids simply, without large-scale equipment. Normally, a handheld pump used for drum containers would be selected for standard chemical solutions, but in this case, the high viscosity made it impossible to transfer with a regular handheld pump. ● A compact pump that can self-prime and transfer chemical liquids The SN model is an electric diaphragm type with a flow rate of 50L/min, which is sufficient for small-scale dispensing, and it can run dry. It can suck up the chemical solution down to the bottom. Additionally, the advantages of the diaphragm type include its ability to handle high viscosity and slurries, making it flexible enough to accommodate various chemical liquids that traditional handheld pumps cannot handle. It also offers a price advantage compared to handheld pumps, leading to its adoption.

● Manufacturing line halted! A competitor's magnetic pump integrated into the existing chiller has failed. Due to the different voltage (440V), we were informed that it would take 1.5 months for delivery, and we received a consultation saying, "The manufacturing line has stopped, and we are in trouble!" With H2's chemical magnetic pump, we can respond to standard delivery times even for different voltages (440V). After selecting a suitable product, the order was placed immediately, and we also received an order for the piping and electrical work associated with the replacement of the competitor's pump. ● Piping and electrical work are also handled by the manufacturer, ensuring speed and quality. In collaboration with our partner company, installation work was carried out on-site immediately after the pump was completed. We faced challenges with piping in a narrow space, but we successfully completed the installation and confirmed that the trial operation adjustments worked without any issues. As in this case, if you are a user facing a failure of a pump with a different voltage and need to restore it as soon as possible, please contact H2.

●Refilling without opening the tank lid Typically, the addition of neutralizing agents such as caustic soda or sulfuric acid into the chemical tank of a pH automatic neutralization device was primarily done manually or with handheld insertion pumps. In recent years, due to an increased awareness of safety, more customers have requested "keyed" tank inlets. The issue that arises is the hassle of having to "unlock" each time chemicals are refilled. To address this, H2 has installed a self-priming diaphragm pump onto a PVC tank, with the discharge side piped to the tank, allowing the suction hose to be inserted into a polycan or pail, enabling refilling simply by turning on a switch. ●No dangerous chemicals splashing around! The advantage is that dangerous chemicals can be refilled without opening the keyed inlet. There is no longer a problem of where to store the handheld pump after use. Since the discharge side is piped, the risk of the "discharge hose coming off the tank and causing a large amount of chemicals to splash around," which could be alarming with a handheld pump, has been eliminated. This is a safety measure that was previously unimaginable with conventional self-priming pumps.

We received an inquiry from a major chemical plant regarding the desire to transfer urea water from the ground to a ship at a port where the ship docks. The specifications requested were: "transfer rate of 200L/min," "self-priming and resistant to dry running," "lifting height of 30m," and "to be portable, with the compressor mounted on a cart." In response, we delivered the air diaphragm pump "ADD-40-PP." Since long-distance transfer via hose was anticipated, we also included a pulsation dampener in the unit. We selected a compressor tailored to the customer's specifications and delivered it as a complete unit. [Case Study] ■ Delivery: A certain chemical plant ■ Application: Transfer of urea water from the port to the ship ■ Model: ADD-40-PP (Air Diaphragm Pump) + Compressor Unit *For more details, please refer to the PDF document or feel free to contact us.

●We want to reduce the amount of rust preventive oil. We received an inquiry from N.P. Company, a major surface treatment manufacturer, asking if there is a good pump for reducing the amount of rust preventive oil. The best method for use is to draw up the rust preventive oil and spray it with a gun nozzle, so we adopted the self-priming diaphragm pump model SN. When using a general-purpose pump with a gun nozzle to flow and stop the fluid, the problems that arise are: "the internal pressure continues to rise, causing blowout troubles from the piping" and "additional equipment like pressure switches becomes necessary, leading to high costs." ●With powerful self-priming and pumping capabilities, it can be used just by hanging it on the wall. The H2 SN model has a built-in relief valve, so even with frequent ON-OFF operations using the gun nozzle, it circulates within the pump and keeps the internal pressure below a certain level. The self-priming capability of the SN model is high, and this time it was delivered as a wall-mounted set, allowing fluid transfer using the gun nozzle simply by inserting the suction hose into the rust preventive oil. There are no initial costs for construction, and the person in charge commented, "If we were to try to do the same thing, it would normally cost 3 to 5 times more than H2's proposal."

A fuel wholesale company requested to deliver "urea water (AdBlue)" necessary due to diesel engine exhaust regulations, and we manufactured a unit that can transfer urea water on the vehicle. The issue was the power specifications specified by the user, who wanted to operate it using a 100V power supply from the truck for delivery. As a solution, we selected a 200V type magnetic pump HT and incorporated an inverter to convert the 100V power supply to 200V three-phase, also installing an inverter box for this purpose. Our company has extensive experience in the transfer and manufacturing of urea water systems. If you are considering transferring urea water, including on-vehicle transfer and precise dispensing, please feel free to contact us. 【Case Details】 ■Delivery: Fuel wholesale company ■Application: Transfer of urea water (AdBlue) from the vehicle (complete system) ■Model: HTX-440 *For more details, please refer to the PDF document or feel free to contact us.

A sake manufacturer in Aichi Prefecture contacted us with the request to "transfer the produced sake to storage tanks." The transfer process involved specifying a designated quantity on a touch panel (e.g., 1000L), and once the transfer was complete, the pump would automatically stop. The flow rate accuracy was a stringent ±0.5%, but we successfully met this requirement. During the on-site trial operation at the manufacturing plant, the user was very pleased with the level of completion, and we received the candid feedback, "This quality at that price is amazing." Additionally, we were delighted to hear, "I would like to entrust fluid transfer to you in the future. I'm glad to have met a good manufacturer." [Case Details] ■ Delivery: A sake manufacturer in Aichi Prefecture ■ Application: Quantitative transfer to storage tanks *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce a case where we received an inquiry from a certain mining company regarding the consideration of a concentrated sulfuric acid dosing unit. They reviewed our past delivery cases and requested to eliminate the "splashing risk during chemical replenishment." Since the liquid used is concentrated sulfuric acid, we selected the injection pump and replenishment pump made entirely of PTFE, and designed the chemical tank specifically for concentrated sulfuric acid (high-density type). H2 is skilled at incorporating the detailed requirements of customers that cannot be met with off-the-shelf products into specifications. 【Case Details】 ■ Delivery: Certain mining company ■ Application: Dosing of concentrated sulfuric acid (with replenishment pump) ■ Model: Metering pump type M / PTFE replenishment pump *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce a case where H2 produced a quantitative mixing device for powders and liquids for a factory in the Chubu region. The powder is calcined calcium (derived from shells), and by mixing it with water in a specified ratio, a strong alkaline water of a constant concentration can be produced. The powder is replenished in a transparent PVC tank and is structured to be dropped into the lower tank via a screw-type feeder. 【Case Overview】 ■ Client: Factory in the Chubu region ■ Delivered Product: Quantitative mixing device for powders and liquids ■ Application: Production of strong alkaline water ■ Key Point: Powder feeder focused on quantitative accuracy *For more details, please refer to the PDF document or feel free to contact us.

A major chemical plant requested us to devise a system that automatically transfers and replenishes caustic soda to maintain a constant concentration within a large scrubber when the pH drops. Since a pH meter is installed on the scrubber side, we configured the system to incorporate that signal into our device, activating the transfer when the concentration decreases. The user commonly uses Iwaki's metering pumps, so we incorporated Iwaki pumps as the transfer pumps, as they are familiar with their maintenance and operability. Additionally, we received many requests regarding safety, so we installed a drain pan to prevent leaks from the caustic soda storage tank and a leak sensor within the drain pan to detect any leaks. [Overview] ■ Delivery: Western Japan Chemical Plant ■ Application: Transfer and replenishment of caustic soda to the scrubber ■ Request: To maintain a constant concentration of caustic soda within the scrubber *For more details, please refer to the PDF document or feel free to contact us.