日本ドレッサー List of Products and Services

The "4200 Series" is a positioner that is mounted on control valves used for process control, significantly improving positioning accuracy and responsiveness, while also providing control that meets specified requirements. We offer the "4200P Type Pneumatic Positioner" and the "4200E Type Electro-Pneumatic Positioner." 【Features】 ■ Standard specifications can accommodate both linear and rotary motion. ■ Can support a 1/2 split range in standard specifications without the need to replace components such as feedback springs. ■ The zero and span adjustment mechanism is modularized, making adjustments extremely easy. ■ In addition to its simple structure, the internal mechanisms are modularized, making maintenance very easy. *For more details, please refer to the PDF materials or feel free to contact us.

From the basic model equipped with minimal functions to the combination of an LCD display and pressure-resistant explosion-proof structure, we offer a variety of options that enable advanced features, such as combinations of push buttons, pressure sensors, and optional boards. Like the "SVI" and "SVI II," it is equipped with three types of interfaces, allowing for various usage methods and operating conditions. The components adopt a modular structure, making maintenance and parts replacement very easy. 【Features】 ■ Diverse user interfaces ■ Non-contact displacement sensor ■ Non-linear control algorithm ■ Diagnostic functions - Self-diagnosis of the positioner - Diagnosis of the control valve *For more details, please refer to the PDF document or feel free to contact us.

We would like to introduce the "Model 78 Air Set / Model 78 Transfer Valve" that we handle. The "Model 78 Air Set" is used to accurately control the supply pressure to instruments such as positioners for control valves. The "Model 78 Transfer Valve" is a transfer valve that combines a floating ball type pilot section with a three-way valve, and it is a high-performance "set pressure adjustable three-way switching valve." 【Features】 ＜Model 78 Air Set＞ ■ Supply pressure reducing valve ■ Accurately controls the supply pressure to instruments such as positioners for control valves ■ Available in standard capacity Model 78-4 and high capacity Model 78-40 ＜Model 78 Transfer Valve＞ ■ High-performance set pressure adjustable three-way switching valve ■ Can be used as a lock-up valve by stopping the exhaust port and using it as a two-way valve ■ Available in high capacity Model 78-80H and standard capacity Model 78-80S *For more details, please refer to the PDF materials or feel free to contact us.

This product is a booster relay specifically designed to match well with control valves. It is used to increase the operating speed when the required operating speed of the control valve is particularly fast, or when the actuator capacity is large. When the difference between the signal pressure and output pressure is large (conditions requiring a significant change in opening), it results in a high flow rate, while a small difference (conditions requiring a minor change in opening) results in a low flow rate. This characteristic aims to achieve both a reduction in operating time and stability. 【Features】 ■ Has flow characteristics suitable for control valves ■ Employs a secondary pressure partition plate for stable secondary pressure detection ■ Built-in bypass valve for sensitivity adjustment ■ Filters are used on both the supply pressure side and the signal pressure side ■ Exposed bolts and nuts are made of stainless steel ■ Available in BR200 and BR400 models *For more details, please refer to the PDF document or feel free to contact us.