The MS brand has grown alongside the development of Japan’s LP gas industry.
We are now poised to make even greater strides toward the future of energy and daily life.

Since our founding in 1949, Miyairi Valve Mfg. Co., Ltd. has been a comprehensive manufacturer of valves for LP gas supply systems—from upstream to downstream—including those for manufacturing facilities, storage equipment, gas cocks, containers, and bulk storage tanks. Over the past seven decades, we have expanded our business in step with the growth of Japan’s LP gas industry. LP gas remains our core business, and we continue to dedicate ourselves to the development, production, and sales of safe, reliable, and high-quality products that meet stringent standards.

Building on our expertise in handling high-pressure gases and cryogenic materials cultivated through our LP gas operations, we are accelerating the development and commercialization of cryogenic valves for LNG (Liquefied Natural Gas), a promising clean energy source, and liquid hydrogen, often referred to as the ultimate clean energy. These initiatives form the foundation of our business expansion efforts.

In addition to these two pillars, we are actively pursuing a third business domain: the development and commercialization of valves, nozzles, and couplings for the food processing industry. One notable outcome of this endeavor is the creation of a wine filtration system. This marks a significant milestone for our company, as we transition from supplying components to offering complete systems as a set manufacturer.

By focusing on energy-related fields while also advancing product development in lifestyle-related sectors, we aim to contribute to a better future for both energy and daily life. We sincerely appreciate the continued support and encouragement of our stakeholders, including our customers and society at large.

Kenji Nishida
President
Miyairi Valve Mfg. Co., Ltd.

Brand NameMiyairi Valve Mfg. Co., Ltd.
Trade Mark
Date of EstablishmentApril 8, 1949
CapitalJP Yen 1,993,096,496.-
Address1-2 Ginza-Nishi, Chuo-ku, Tokyo
104-0061, Japan
Telephone+81-3-3535-5575
Executive CommitteeChief Executive Officer : Kenji Nishida
Director : Yuichi Arakawa
Director : Hikaru Kazama
Director : Takashi Sasuga
Director : Tsutomu Kashihara
AuditorAuditor : Toshiaki Nakagomi
Auditor : Emi Kitamura
Auditor : Hiroaki Rokugawa
Line of Business1. Cylinder valve for LPG
2. Valves & Equipment for other high pressure gases
3. Valves for other transportation
4. Other gas equipment.
QualificationPlant qualified by the Minister of Economy, Trade and Industry(METI)
ISO 9001
ISO 14001
Stock Exchange MarketTokyo Stock Exchange (Standard market)

Miyairi-valve is aiming at
"No.1 customer satisfaction company"
based on three mottos;

Mutual Benefit
With society, customers, Miyairi people, shareholders.

Team Work
 Miyairi people closely work together to achieve the aim.

Self-Discipline
Miyairi people individually and diligently perform own roll.