Highlighted products

With minimized body vertical hole dimensions, excellent gas replacement characteristics are realized through smaller interior volume

Realizes high sealing, high durability, degassing performance, and corrosion resistance through a proprietary gas-contact part seal structure

High corrosion resistance through carefully selected diaphragm materials and minimized individual variation through proprietary molding methods

Particle performance optimized through a clean manufacturing environment and interior polishing

Simple, compact design using a new high-output actuator and internal thread body structure

Lineup of high flow types NRHD4,
with a 1/4" size and a slim actuator of outer diameter 39.7 mm, realizes Cv 0.25 NRHD8,
with a 1/2" size, realizes a Cv 1.0 large flow; manual valves have low-torque handle operation

Springless diaphragm structure reduces particles

Dead volume from seat to main flow path is minimized at valve closing, realizing superb gas replacement characteristics Reduced by 86% from our 1/4" KD type

Forcible lift of the lift part diaphragm prevents vacuum closure and improves opening speed

Replaceable structure allows users to replace the seat assembly

The basic performance, materials, and cleanliness of the KD Series have been retained, while reviewing parts, changing machining methods, and reducing part counts, realizing safe and low-priced valves

Realizing reliability and durability equivalent to the conventional model, through equivalent cleaning and inspection processes

Particle performance optimized to support semiconductor high purity gas through highest-level manufacturing environments and interior polishing

Female nut (NF): Female thread is given silver plating and seizing/galling prevention, ensuring solid tightening

Sleeve (S): Smooth interior finish with our proprietary electropolishing, etc.

Gasket (G): Made of nickel as standard, realizing high sealability with sleeve through tightening

Male nut (NM): Rolled screw use for high strength and solid connection

Use of refined stainless steel enabling excellent welding capacity for materials

Our unique electropolishing technology is available as an option for high purity gas piping applications

Product cleanliness is ensured by washing, inspection, and packaging in cleanrooms

With a neck (straight piping section) suited to automatic welding attached, high-quality welding is easy