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Komoto Ball Valve

Series 41 ball valves are off-the-shelf standard valves that incorporate many special features. This series of valves is designed for both pressure and vacuum service.

The valves have multiple fire safe guards : a secondary metal seat ; a blowout-proof stem ; and a static electric grounding device. The Valves are available with a full bore and reduced bore.

Performance :

  • High Cv to valve weight ratio compared to conventional control valves.
  • Throttling controls 60° rotation, on-off controls 90° rotation.
  • Excellent control range ability.

Design Flexibility :

  • Stem Seal and Bearing: All ball valves incorporate a PTFE bearing to absorb any radial loading on the valve stem. A PTFE thrust bearing is also provided to reduce friction due to axial loading. packing utilizes multiple "V" shaped PTFE rings ; tightening the gland nut spreads each ring and creates a multiple seal between the stem and body. the simple gland adjustment also allows compensation for operational wear. in addition, fluid pressure below the stem packing spreads the rings and improves the seal by increasing the stress on the rings-prohibiting leakage and minimizing maintenance.

  • Ball: One of the most important components in any ball valve is the ball itself. yhe sphericity and surface finish of the ball are directly related to the life of the valve, its pressure holding capability and the operating torque. For these reasons, KOMOTO designed special production equipment to produce balls that have a sphericity of ±0008" and a 4RMS surface finish.

  • Fire-Safe API-607: One of the many requirements of today's industries is that ball valves must have a metal to metal seal in case the nonmetallic seal is destroyed by fire or other means. It provides assurance to the user handling flammable or hazardous fluids that should the non-metallic seal be destroyed, the ball valve will stop the flow of material until a new seal is installed.

Vavle  Type

2 ways, 3 ways

Valve Size

1/2"(15A) to 12" (300A)

Valve Rating

ANSI 150# to 600#, JIS 10K to 40K, PN10 to 40 RF, FF, SW, BW, Screww, RTJ…..

Valve Temperature

-17 to 230

Body Material

A216WCB, A351CF8, A351CF8M, A351CF3, A351CF3M…

Trim Material

A351CF8, A351CF8M, A351CF3, A351CF3M, H-C, H-B…


Plain, Extension, Cryogenic

Flow Characteristic



Pneumatic  Spring Return Cylinder Actuator

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