清水工業 List of Products and Services

As the AVK Group, we handle a variety of valves, fittings, fire hydrants, and air valves that meet ISO, EN, BS, DIN, AWWA, and AS standards for use in water supply, sewage, gas, fire protection, and industrial fields.

• Piping and insulation
• Drainage and ventilation equipment
• Fire extinguishing equipment

The SupaGrip water stop support system, composed of flexible brackets, accommodates various types of pipes with different outer diameters, including cast iron pipes, polyethylene pipes, PVC pipes, asbestos pipes, steel pipes, and stainless steel pipes. *This product is not certified by the Japan Water Works Association. Features: - With its unique expansion and contraction function, the bracket is optimal for various types of pipes with different outer diameters, making it suitable for emergency leak repairs and disaster recovery materials. - It has a maximum flexibility of ± 4° on each side. - It includes a reliable anti-pull-out feature. - The permanently attached protective cap protects bolts and other components from foreign materials such as sand during installation and work. - For sizes ranging from 100mm to 600mm, it includes lifting hook holes. - It is coated with epoxy resin powder paint, providing excellent corrosion resistance on both the inner and outer surfaces. - The end cap comes with a 1 1/4 inch plug that can be used for drainage and other purposes. For more details, please contact us or download the catalog.

• Piping Equipment

It will be possible to operate the repair valve inside the manhole from above ground. Features: - This is a hook-type lever repair valve that can be operated from above ground using a manhole opening tool. When opened, the lever is vertical, and when closed, the lever is horizontal, clearly indicating the open and closed states with arrows and O-S markings. - The simple lever design, along with the use of stainless steel for key components such as the valve box and valve body, helps prevent rust and corrosion, ensuring excellent durability for long-term use. - Since it is unpainted, there is no concern about cracking or chipping that can occur with powder coating, and there is no need for repair painting. For more details, please contact us or download the catalog.

• Drainage and ventilation equipment
• Water and sewerage pipe fittings

A rapid air valve made of stainless steel that enhances corrosion resistance and durability, contributing to the longevity of piping systems. It can be used safely for an extended period. The "SCS14" made of high corrosion-resistant stainless steel is also ideal for salt damage prevention. Its lightweight and compact design allows for easy installation and maintenance. 【Features】 - The "SCS14" uses high corrosion-resistant stainless steel for all major components, including the valve body and cover, as well as bolts, effectively suppressing rust and corrosion, resulting in excellent durability. - The exhaust performance meets the standard values of JWWA B 137 for rapid air valves used in water supply. - The φ25mm model connects the floating valve body and the float valve body, applying the principle of leverage for smooth and reliable operation. - The cover is equipped with standard screws for piping installation, allowing for easy attachment of piping at any time. By installing piping, it prevents the spray generated during the operation of the air valve from splashing onto the main pipe, thus preventing corrosion of the main pipe. Additionally, by attaching the optional dedicated emergency town nozzle (65A), it can be used for emergency water supply, etc. For more details, please contact us or download the catalog.

• Drainage and ventilation equipment
• Fire extinguishing equipment

The inner and outer surfaces are coated with epoxy powder resin, and the use of stainless steel for the valve rod, cap, and tightening bolts achieves high corrosion resistance. By adopting lead-free copper alloy Biwalite (CAC411) for the valve seat and threaded parts, it has become a lead-free compliant product. What is Biwalite? Biwalite is a lead-free copper alloy standardized as CAC411 (JIS H 5120), which has pressure resistance and wear resistance equivalent to CAC406. 【Features】 〇 The inner and outer surfaces are coated with epoxy resin powder, and the use of stainless steel for the valve rod, cap, and tightening bolts achieves high corrosion resistance. 〇 It is a lead-free compliant product that uses lead-free copper alloy Biwalite (CAC411) for the valve seat and threaded parts. 〇 Smooth opening and closing operations are enabled by the resin thrust bearing. 〇 It features a metal sheet structure that is optimal for piping systems concerned about rubber degradation due to high concentrations of chlorine. For more details, please contact us or download the catalog.

• Drainage and ventilation equipment

The valve body is made with a rubber lining, providing high water-stopping capability, and the straight design of the valve bottom prevents debris accumulation. It features a rational design that maintains sufficient strength and stable functionality while being lightweight and compact. 【Features】 - This product has passed the JWWA B 120 type test. - It uses chlorine-resistant EPDM (EJV-70) for the rubber valve seat, significantly enhancing durability against chlorine. - The threaded connection is a robustly press-fitted integrated type, ensuring stable opening and closing of the valve body without putting stress on the rubber lining. - Both the valve body and valve box are equipped with long guides that have a large pressure-bearing area, allowing for stable operation over an extended period. - The valve body has a wedge shape, resulting in low water-stopping torque and excellent water-stopping capability. For more details, please contact us or download the catalog.

• Safety and consumables

Firefighting training using underground fire hydrants installed in the community, such as at school playgrounds and parks, will be possible. A Machino-type connection port is provided on the inflow side, allowing water to be sent from a pump truck or an actual fire hydrant using a 65A fire hose. *We also offer a 30-day rental service that can be used only when needed for the required period. 【Features】 - Equipped with a Machino-type connection port, allowing water to be sent from actual fire hydrants or pump trucks. - Underground fire hydrants can be freely selected from our various hydrants. *The photo and diagram show the valve body storage type underground fire hydrant Camel (standard specification). - The weight in standard specification is 45 kg, making it possible to transport with a cart or by two people. - An emergency water supply kit (optional) can be attached to the hydrant's nozzle, allowing it to be used as an emergency water supply in case of emergencies. - Rapid air valves (Machino type) and rapid air valve with a diameter of 75 mm can be used for training sessions on fire hydrants and air valves at various water service offices. - The side message board (optional) can be freely marked with the name of the office and various slogans. - A 30-day rental contract is also available. *For more details, please contact us or download the catalog.

• Fire extinguishing equipment

This is a stainless steel underground fire hydrant with a valve body that has been improved for corrosion resistance. By adopting a design that stores the valve body in the lid, it achieves compactness and ensures a smooth flow path. The outlet is lowered 80 mm from the cap to maximize safety and operability during firefighting. Features: - The design eliminates waste, achieving both compactness and a smooth flow path. - By separating the height of the outlet and cap by approximately 80 mm, it allows for safer and smoother operation even when using a standpipe. - The body, lid, and cap are made of stainless steel and are unpainted, preventing paint peeling and deterioration over time, while also suppressing rust formation. The outlet flange is also made of stainless steel, enhancing strength. - The flange connection bolts are visible from the top, making installation and removal easy. - By eliminating nuts from the assembly bolts, the threaded parts are protected from sand and other debris, and maintenance can be performed with just a T-shaped wrench. For more details, please contact us or download the catalog.

• Car and bicycle parking facilities
• Fire extinguishing equipment
• Water Supply Facilities