株式会社MIHANA制造所成立于1952年，是日本一家专业从事安全阀的设计开发与制造的生产厂。经过长期不懈的努力，取得了日本高压气体认证工厂、日本工业标准（JIS）认证工厂、及ISO9001认证； 2003年3月获得中国国家质量监督总局锅炉压力容器安全质量许可证书。
MIHANA（名阀纳）安全阀系列产品有安全阀、减压阀、溢流阀、呼吸阀、火焰阻隔器、真空释放阀及破裂板式安全装置。
MIHANA（名阀纳）安全阀系列产品，主要应用于石油化工、电力、航天工业、工业气体、生物食品、医药制造等行业的超低温、超高温、超低压、超高压、超真空等领域。在中国的主要成功案例有：燕山石化公司、茂名石化公司、宁夏化肥厂、中国运载火箭技术研究院、中集圣达因低温装备有限公司、新疆广汇公司、深圳美视电厂、酒泉钢铁集团等用户。公司的设计部门还可以根据客户的具体要求，量身定制所需要的阀门。
为了更紧密地联系广大的中国用户，2006年5月，株式会社MIHANA制造所在中国投资成立办事处，我们将承担起中国的销售及售后服务工作，最终实现产品的国产化目标。

Safety and Relief Valves Revolutionizing Industry

Mihana Seisakusho produces innovative safety and relief valves unparalleled anywhere in the world.

Conventionally, leakage with valve operation has always been considered to be part and parcel of the nature of valves to the extent that leakage is included in valve standards in Japan and throughout the world. Until now.

Mihana Seisakusho is revolutionizing the way industry looks at valves.

In a safety valve endurance test comprising 100 operations, Mihana Seisakusho’s valve was found by a public agency to have no leakage. Another innovative feature is that the blowing and blow-off phases happen essentially simultaneously.

●Patent received

ISO 9001 certified production plant

Approved for high-pressure gas facility testing and manufacturing

Certified to use the Japanese Industrial Standards (JIS) mark

Chinese Safety Quality License

●Applications

The Mihana Seisakusho safety valve is used in a wide range of applications including such industrial devices as compressors and boilers, automobiles and containers, food processing equipment and medical devices. It is also used in the such industries as electrical power, petrochemicals, manufacturing and atomic energy.

●Specifications

Types: lifting, full-bore including screw-in and flange valves

Length: 3 to 600 mm

Pressure: ±25 mmAq or 50 MPa

Compatible fluids: gases, vapors, liquids

Temperature range: -262 to +600° C

Available materials: CAC406/SCPH2/SCS13A

SCS14A/SCS16A/SUS 304(L)

SUS 316(L)/Monel/Hastelloy/Inconel