SEIKA SANGYO (THAILAND) CO., LTD.

Catalog_Main Products-NDV

This NDV (Nippon Daiya Valve Co., Ltd.) catalog presents a comprehensive array of industrial valves and dampers, highlighting their diverse features, specifications, and applications. Key offerings include diaphragm valves, such as weir type (400 Series) with arcuate weirs and extensive material choices for fluid compatibility, bio-clean versions (B400 Type) designed for biotechnological applications with glandless and pocketless construction, straight-way types (500 Series) minimizing pressure loss and fluid retention for viscous or slurry media, and nuclear plant specific A400 types prioritizing safety and maintainability. Ball valves (100 Type) feature unique lip-mechanism seats for stable sealing and V-type packing ensuring long-term shaft sealability, encompassing 3-way (300 Type) and Y-type 3-way (Y300 Type) for flow diversion/mixing or handling abrasive/viscous fluids, and V-port valves (V100 Type) with V-cut balls providing excellent flow characteristics and effective shearing of fibrous materials. Butterfly valves (KM200/C200R Type) employ a double off-center disk rotation for superior sealing and operability, with PFA-lined options (C559 Type) specifically designed for highly corrosive fluids, preventing fluid contact with metal stems via a unique shaft seal mechanism. Rubber-lined check valves (B900/N900 Type) ensure all fluid-contacting surfaces are rubber-lined. A wide range of operational modes is available, including manual, pneumatic (air-operated with 0.4MPa operating pressure), and electrically operated actuators, across various sizes (e.g., DN8 to DN650). The catalog also introduces metal touch dampers (DSR4000 Series) known for their non-sliding design, maintaining long-term airtightness, particularly for cleanroom air conditioning.

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