山幸 List of Products and Services

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, walkways, and stairs as a complete set. Since it is modular, assembly is easy. The main body has sufficient strength and can accommodate various types of wastewater. 【Features】 ■ Easy assembly due to modular design ■ Customization 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.

• Turbid water and muddy water treatment machines

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 technology and systems
• Turbid water and muddy water treatment machines
• Water Treatment

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

• Other measuring instruments

The "Non-Full Diffuser" is an air ejection device that contributes to the activation of microorganisms in the tanks of water treatment and combined treatment systems. 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, dissolving oxygen in the water. Additionally, the cap section (damper) tightly adheres to the main body to prevent the backflow of dirty water, ensuring consistent good operation. Furthermore, the upper damper has a special processing that allows for even air ejection, resulting in very low pressure loss and reducing the burden on the blower. 【Features】 ■ Contributes to the activation of microorganisms in the tank ■ Bubbles are neither too large nor too small ■ No troubles 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 technology and systems

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

• Water Treatment
• Water Treatment Plant

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

• Sanitary fixtures
• Unit and other construction

FRP tanks have high corrosion resistance, so they are used for many applications, including drainage tanks and storage containers for chemicals.

• Sanitary fixtures
• Water Treatment

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, sewer manholes, and fire department manholes.

• Special function opening
• Sanitary fixtures
• Water Supply Facilities

The measuring tanks from Yamako Co. are designed in accordance with JIS standards, utilizing the strength and lightweight characteristics of FRP, making them a simple type of measuring tank with many advantages such as workability on-site and corrosion resistance after installation. 【Features】 - There are YMT type wastewater measuring tanks and YST type sludge measuring tanks. - The overflow device (return water device) adopts a rectangular weir method, and 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 wastewater transition device (constant outflow device), a constant outflow water volume can be ensured. - Yamako's FRP measuring tanks use DV joints as standard, and installation is done through Yamako's special processing, ensuring no leakage from around the inflow and outflow sockets. - 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.

• Sanitary fixtures

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

• pump
• Sanitary fixtures

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

• Piping and insulation
• pump
• Sanitary fixtures

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.

• pump
• Sanitary fixtures

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

• Sanitary fixtures

Using a unique circular float from Yamako, it is lightweight and compact, with no swaying of the float part, allowing for stable vertical movement and efficient suction of floating scum.

• Sanitary fixtures

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.

• Sanitary fixtures
• Drainage and ventilation equipment
• Water Treatment

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

• Sanitary fixtures

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