VALQUA TORQUE SYSTEM CO., LTD. Product Lineup

"HN" is a nut equipped with a hydraulic mechanism similar to a bolt tensioner. By replacing conventional nuts and simply connecting the hose, it enables simultaneous tightening and loosening of a large number of bolts at once, significantly reducing time. Its compact size allows it to be used in places where the use of a bolt tensioner was previously abandoned due to space constraints. Additionally, a self-maintainable lock ring split type is also available for order, even if the seal is broken. 【Features】 ■ Used by replacing nuts ■ Tension tightening anywhere ■ Lock ring split type also available for order *For more details, please refer to the PDF document or feel free to contact us.

The "WTB" is a bolt tensioner designed to work efficiently within the limited workspace of a wind turbine. It is an integrated unit with no separate parts. The lower part is tapered in a circular shape, minimizing interference with neighboring components even in wind turbines with narrow bolt pitches. It has been adopted as a designated tool by many companies, including the Spanish company Gamesa, and its quality and track record are well-established. 【Features (partial)】 ■ Safety Plunger Bar - Structural measures are in place to prevent the main body from being ejected in the event of plunger bar breakage. ■ Snap Down Disk - Automatically assists in attaching to nuts, allowing for smooth setup. ■ 360° Swivel Joint - Makes hose connection and handling easy, preventing obstruction even in tight spaces. *For more details, please refer to the PDF document or feel free to contact us.

"T-PUMPS" is a tensioning pump with a maximum discharge pressure of 80 to 280 MPa. It offers a lineup of three types that can be selected based on discharge volume and power. For hydraulic pumps, we recommend using anti-wear hydraulic fluids in the 32 to 46 viscosity range. The more bolt tensioners or hydraulic nuts are driven simultaneously, the higher the accuracy, making the role of the pump very important. We provide appropriate selection proposals based on our extensive past cases and the specific conditions of the site. 【Features】 ■ Pump with a maximum discharge pressure of 80 to 280 MPa ■ Necessary for operating bolt tensioners and similar devices ■ A lineup of three types that can be selected based on discharge volume and power ■ Recommended use of anti-wear hydraulic fluids in the 32 to 46 viscosity range (We generally use viscosity 46) *For more details, please refer to the PDF materials or feel free to contact us.

The "CTST" is a simple structure bolt tensioner that allows for easy maintenance, including seal replacement, to be performed by the user. It is a bolt tensioner that enables advanced axial force management by pulling the bolt up with high-pressure hydraulics and tightening the nut in the meantime. This model is particularly simple, consisting only of a plunger, load cell, and bridge. By combining six types of load cells with various plungers and bridges, it accommodates a wide range of sizes. 【Features】 ■ Lightweight and simple ■ Self-maintenance is possible ■ Compatible with M20 to M100 in six types *For more details, please refer to the PDF document or feel free to contact us.

The "AB" is a tool equipped with an air-back function that automatically retracts the piston as the pressure is released, by pre-filling air into a bolt tensioner capable of advanced axial force management. It has a strong body that can withstand harsh job sites and is easy to maintain. By combining various load cells with different plumb bars and bridges, it accommodates a wide range of sizes. 【Features】 - Tensioner with air return function - Pulls up the bolt with high-pressure hydraulic force while tightening the nut - Enables efficient work - Corrosion-resistant body - Compatible with M20 to M100 in six types *For more details, please refer to the PDF document or feel free to contact us.

This document is a comprehensive catalog of large bolt tightening tool products handled by Bulkart Torque System Co., Ltd. It includes a wide range of product information covering categories such as torque tightening, tension tightening, heating tightening, and axial force measurement, as well as flange work and other work improvement products. The catalog also contains specifications and options for each product, as well as useful materials such as tightening force setting value calculation formulas and unit conversion tables, which can be used as a reference for product selection. [Contents (partial)] ■ Torque tightening ■ Tension tightening ■ Heating tightening ■ Axial force measurement ■ Accessories and other tightening-related items ■ Flange work *For more details, please download the PDF or feel free to contact us.