山幸 List of Products and Services

The "YSK-AFT Automatic Neutralization Unit" is a unit that can automatically control everything from the operation of the raw water inflow pump to pH measurement, the operation and stopping of the dosing pump, and the operation of the stirrer. By simply setting the pH and pressing the start button, the unit will carry out neutralization and pH adjustment processes. It has a compact design as it integrates the raw water pump, neutralization tank, stirrer, chemical tank, pH meter, and more into one unit. Additionally, installation is very easy, which is expected to reduce construction costs. Please feel free to consult us. 【Features】 ■ Automatic neutralization and pH adjustment ■ Drought alarm included ■ Dosing pump operation timer function ■ Sequencer control adopted *For more details, please refer to the catalog or feel free to contact us.

• Other water treatment related equipment
• Other water treatment

The "YSRT Coagulation Sedimentation Unit" is an easy-to-install coagulation and sedimentation treatment device for wastewater treatment. It includes a sedimentation tank (with scraper), coagulation reaction tank, mixing tank, inflow measurement tank, chemical tank, dosing pump, various frames, and walkways/stairs as a complete set. Since it is modular, assembly is easy. The main body has sufficient strength and can handle various types of wastewater. 【Features】 - Easy assembly due to modular design - Customization options available for color, diameter, length, etc. - Production of individual tanks is also possible - On-site installation work can be accommodated upon request *For more details, please refer to the catalog or feel free to contact us.

• Wastewater/wastewater treatment equipment

The "FRP corrosion-resistant tank" is a tank that is highly resistant to corrosion and is used for various applications, including chemical storage containers and drainage tanks. This product can be manufactured in any shape or size, allowing us to meet your specific requirements. It is made with a thickness that meets strength standards, and handrails and ladders can also be installed. Additionally, you can freely choose from inspection ports, various nozzles, water level gauges, scale plates, hanging hooks, and more, and you can also specify the color of the product. 【Features】 ■ Compatible with various specifications ■ Reinforced for strength assurance ■ Equipped with a gauge for easy water level visibility ■ On-site installation (assembly) work is also available *For more details, please refer to the catalog or feel free to contact us.

• tank
• Other storage and equipment

This product is designed according to JIS standards, utilizing the strength and lightweight characteristics of FRP, making it a simple measuring tank with many advantages, such as workability on site and corrosion resistance after installation. The standard model uses DV joints, and thanks to our special processing, there is no leakage from the inflow and outflow socket areas. In addition to DV joints, TS joints, HI joints, and HT joints can also be installed. For flanged specifications, a special PVC flange is included, and the connection ports for large measuring tanks are fitted with FRP flanges. At Yamazaki, we can also manufacture using other materials such as SUS and PVC, so please feel free to consult us. 【Features】 ■ Made of FRP ■ Slide plate screw lock type ■ Two types for wastewater and sludge ■ Excellent corrosion resistance ■ Can be manufactured in other materials *For more details, please refer to the catalog or feel free to contact us.

• Other water treatment related equipment
• Other water treatment

The "Separate Tank" is an ideal tank for separating air from a gas-liquid mixture that contains water or oil. By using FRP as the material, we have enhanced durability compared to PVC products and achieved a lighter weight compared to SS and SUS products. Additionally, the lid is equipped with butterfly screws, making inspection easy. We also manufacture and sell PVC and SUS separate tanks. Furthermore, we can produce flange-type products as needed, so please feel free to consult us. 【Features】 ■ Made of FRP ■ Lightweight ■ Composed of durable and easy-to-work-with materials ■ Easy inspection with a lid featuring butterfly screws *For more details, please refer to the catalog or feel free to contact us.

• tank
• Other water treatment related equipment
• Other water treatment

The "Air Lift Pump" is a highly efficient pump that releases air underwater, attaching sludge and water/oil to the bubbles, and performs water and sludge lifting based on the difference in specific gravity. The main body is made of strong, lightweight, durable materials that offer good workability, and its simple structure is its greatest advantage as it results in fewer breakdowns. Additionally, when combined with products such as the Yamazaki-made separate tank and scum skimmer, it demonstrates even greater capabilities. 【Features】 ■ Made of FRP ■ High efficiency ■ Lightweight ■ Simple structure with fewer breakdowns *For more details, please refer to the catalog or feel free to contact us.

• Other Pumps
• Other water treatment related equipment
• Other water treatment

The "Slide Valve" is a simple gate valve that can be used for various purposes, such as switching the return of sludge in water treatment and combined treatment septic tanks, and switching water supply in fish farms. It has a simple design structure, making it easy to handle, and is lightweight, so it does not require a dedicated frame. It is compatible with rigid PVC pipes (VP, UV size), and the partition plate is made of stainless steel and PVC. Additionally, by moving the partition plate up and down, it allows for flow rate adjustment. 【Features】 ■ Simple structure ■ Easy to handle ■ Flow rate adjustable ■ Compatible with adhesives for rigid PVC pipes *For more details, please refer to the catalog or feel free to contact us.

• Other water treatment related equipment
• Other water treatment

The "YAR Type Aerator" is a aeration device that enhances the stirring effect of wastewater in the tank and maintains a high level of oxygen dissolution efficiency. Thanks to Yamako's unique lattice structure, the ejected air is fragmented. The fine bubbles generated from this, along with the water drawn from below, provide an impressive stirring power. Additionally, the lattice structure is designed to prevent clogging, eliminating the need for maintenance, which reduces both effort and costs. 【Features】 ■ Extremely high circulation and stirring performance in the tank ■ Mechanism that prevents clogging ■ Maintains a high and constant oxygen dissolution efficiency ■ Reduces installation and maintenance costs ■ Energy-saving design that conserves blower power consumption *For more details, please refer to the catalog or feel free to contact us.

• Other water treatment related equipment
• Other water treatment

This catalog is a comprehensive catalog of Yamakou Co., Ltd., which mainly engages in the design, manufacturing, sales, and construction of water treatment equipment and related devices. It features a variety of products, including the air ejection device "Nonfull Diffuser," the aeration device "YAR Type Aerator," and the simple gate valve "Slide Valve." We have a rich lineup available for you to choose from according to your needs, so please take a look. [Contents] ■ Yamakou Product Lineup ■ Yamakou Product Water Treatment Flow Diagram ■ File Contents ■ Product List *For more details, please refer to the catalog or feel free to contact us.

• Water treatment equipment
• Wastewater/wastewater treatment equipment
• Other water treatment equipment

Since the establishment of the company in 1979, we have been engaged in the development, manufacturing, and construction of equipment (materials) used in water treatment facilities and various on-site construction projects nationwide for over 30 years. Among water treatment methods, we primarily handle equipment used in the most widely adopted activated sludge process, as well as general water treatment equipment. Our products utilize various materials, including FRP, stainless steel, PVC, and ABS resin, in addition to iron, as needed, aiming to improve on-site workability and corrosion resistance through weight reduction.

• Water treatment equipment
• Wastewater/wastewater treatment equipment
• Other water treatment equipment

The "Non-Full Diffuser" is an air ejection device that contributes to the activation of microorganisms present in water treatment and combined treatment tanks. It sends air from the atmosphere (containing 0.227 kg/m² of oxygen) through a blower and injects it into the water via a diffuser, allowing oxygen to dissolve in the water. Additionally, the cap section (damper) is tightly attached to the main body to prevent the backflow of dirty water, ensuring consistent and optimal operation. Furthermore, the upper damper has a special processing that allows for even air ejection, resulting in very low pressure loss and reduced burden on the blower. 【Features】 ■ Contributes to the activation of microorganisms in the tank ■ Bubbles are neither too large nor too small ■ No issues due to clogging at the air ejection point ■ Sealed design ■ Low pressure loss *For more details, please refer to the catalog or feel free to contact us.

• Water treatment equipment

The "YAR Type Aerator" crushes the ejected air using a unique lattice structure developed by Yamako Co.

• Aeration/air diffusion equipment
• Wastewater/wastewater treatment equipment

The measuring tanks from Yamako Co. are designed in accordance with JIS standards, utilizing the strength and lightweight characteristics of FRP. They are simple measuring tanks that offer many advantages, including workability on-site and corrosion resistance after installation. 【Features】 - There are YMT type sewage measuring tanks and YST type sludge measuring tanks. - The overflow device (return water device) adopts a rectangular weir method, and the water volume adjustment is performed by the vertical movement of a sliding plate. - Additionally, it is secured with Yamako's unique screw lock. - By combining the overflow device and the sewage transfer device (constant outflow device), a constant outflow water volume can be ensured. - Yamako's FRP measuring tanks use DV joints as standard, and due to Yamako's special processing, there is no leakage from the inflow and outflow socket areas. - In addition to DV joints, TS joints, HI joints, and HT joints can also be installed. - For flange specifications, a special PVC flange is included. - The connection ports of large measuring tanks are fitted with FRP flanges. - Yamako can also manufacture using other materials such as SUS and PVC.

• Wastewater/wastewater treatment equipment

This flow meter is manufactured according to the specifications set by JIS standards, allowing it to maintain high accuracy with simple cleaning for an extended period. It is the ideal product for measuring wastewater flow.

• Flow Meter

Among the equipment used for the removal, transportation, and pumping of scum and settled sludge that float in sedimentation tanks and storage tanks, there is the air lift pump, which has a history of over 200 years since its invention.

• Other pumps
• Wastewater/wastewater treatment equipment

The floating scum and settled sludge, which are lifted by an airlift pump and ejected from the installation tank, are a gas-liquid mixture of air, moisture, and oil. The separator tank is an ideal device for separating this gas-liquid mixture into air and liquid.

• Wastewater/wastewater treatment equipment
• Other water treatment equipment

Using a unique circular float from Yamako, it is lightweight and compact, with no swaying of the float part, allowing for stable up-and-down movement and efficiently sucking up floating scum.

• Other environmental equipment
• Wastewater/wastewater treatment equipment

In addition to the lightweight, easy-to-handle, and economical slide valve type YG for switching sludge return in water treatment and combined treatment purification tanks, as well as for switching water supply in fish farming, we also manufacture and sell type YGP.

• valve
• Wastewater/wastewater treatment equipment

The overflow trough using the new V-notch from Yamako-sha has increased the strength of the V-notch section.

• Other water treatment equipment
• Wastewater/wastewater treatment equipment

The mixed sludge water from the anaerobic tank flows into the sedimentation tank in the next process, where the treated water is separated into sludge and supernatant. At that time, the equipment that efficiently settles the sludge is the center well.

• Aeration/air diffusion equipment
• Wastewater/wastewater treatment equipment

This is a floor hole cover from Yamakou Company that is safe, odor-proof, and rust-proof, designed for easy locking and opening, suitable for water tanks, purification tanks, water treatment facilities, underground inspection openings in buildings, pit openings, and sewer manholes, among others.

• Other water treatment equipment

FRP tanks have high corrosion resistance, making them suitable for many applications, including drainage tanks and storage containers for chemicals.

• tank
• Wastewater/wastewater treatment equipment

This is a screen unit that can efficiently remove solid materials from inflow and outflow water, installed in a corner tank with automatic screens from various manufacturers.

• Wastewater/wastewater treatment equipment

pH adjustment in wastewater treatment is one of the important processing steps, and neglecting it can lead to environmental destruction. Yamako Company’s YSK-AFT automatic neutralization unit performs automatic control from the operation of the raw water inflow pump to pH measurement, operation and stop of the chemical dosing pump, and operation of the stirrer.

• Wastewater/wastewater treatment equipment