BT-B Series Butterfly Valve by Kurimoto – Precision Control for Water and Seawater Applications
- Luis Alberto Fing

- Jan 14
- 2 min read
Updated: Jan 15
Welcome to Nichiboku's industrial Blog
Introduction
Designed with reliability and industrial-grade performance in mind, the BT-B Series Butterfly Valve by Kurimoto is a robust flow control solution tailored for water, seawater, and similar fluid applications. Trusted across diverse industries, this Japanese-engineered valve ensures excellent sealing performance and long-term durability, making it a preferred choice among engineers and industrial buyers worldwide.

High-Performance Butterfly Valve for Industrial Fluid Control
Key Features of the BT-B Series Butterfly Valve
The BT-B Series Butterfly Valve exemplifies Kurimoto’s dedication to precision engineering. Here's why it stands out:
Feature | Specification |
Nominal Size | 200–4000mm |
Pressure Capacity | Up to 1.0MPa |
Applicable Fluids | Water, seawater, and compatible liquids |
Construction Materials | |
Body | Cast iron, ductile iron, or fabricated steel |
Disc | Same as body (stainless options available) |
Stem | Stainless steel |
Seat | Rubber (vulcanized to inner body surface) |
Superior Design for Reliable Sealing
The BT-B valve's internal rubber seat is vulcanized to the full surface, ensuring a tight water-sealing capability. This feature enhances operational stability in demanding environments, especially in seawater applications where corrosion resistance is crucial.
Corrosion-resistant Options: Stainless steel or rubber-lined discs
Flexible Actuation:
Manual
Electric
Cylinder-operated types
Compliance and Customization
The BT-B valve is designed to meet major international standards including:
Standards Supported: ANSI • AWWA • BS • DIN • JIS • JWWA
Upon request, additional custom materials and specifications can be supported for specialized industrial applications.
Real-World Application of the BT-B Series Valve

Engineers conduct an inspection of the Kurimoto BT-B Series Butterfly Valve installed in a seawater piping system. The valve ensures reliable water-tight performance even in highly corrosive coastal environments.
Product Overview at a Glance

A quick-reference summary of the BT-B Series highlights key specifications and materials, making it easy to evaluate suitability for industrial and marine applications.
Official Catalog
Why Choose Kurimoto’s BT-B Series Butterfly Valve?
Engineered for durability and flexibility, Kurimoto’s BT-B Series is the ideal solution for:
Industrial water systems
Seawater pipelines
Treatment plants and distribution networks
Heavy-duty valve control scenarios
Whether for new infrastructure or retrofit upgrades, this butterfly valve provides Japanese quality with global compatibility.
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Nichiboku Ltd. provides global supply support for Japanese industrial products, ensuring reliable distribution and after-sales assistance worldwide.
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➡️ Inquire about international shipping and product availability
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