SJ Machinery Co., Ltd. | ARMSTRONG INTERNATIONAL & MIHANA

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Mihana Seisakusho is a Japanese family-owned enterprise with a history of over 70 years. Specializing in the design, development, and manufacturing of safety valves, it was established in 1952.

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ARMSTRONG INTERNATIONAL

Armstrong International is a privately owned, fifth-generation family business founded in the United States in 1900.
More than a manufacturer, Armstrong is a trusted partner delivering advanced fluid control and intelligent thermal system solutions.

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Products

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2011 Bucket type

Stainless Steel Inverted Bucket Steam Trap

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Steam QM®

Real-Time, Automatic Steam Quality Monitoring

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Armstrong Control valve

Armstrong Control valve (Formerly Leslie Controls)

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Armstrong VERIS Accelabar®

Flowmeter

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Close Condensate Return Unit

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Armstrong Condensate Return Unit

Pumping Trap Open Condensate Return Unit

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SD10X

Lowlift Safety Relief Valve for hydrogen gas

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HKANTAE

Lowlift Safety Relief Valve with handle

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LKANTAE-S

Lowlift Safety Relief Valve for liquid

Lowlift Safety Valve

News

2026.07
18

SJ Machinery Co., Ltd. Website Update Announcement
To provide more comprehensive information and an enhanced browsing experience, the official website of SJ Machinery Co., Ltd. has been fully updated.

Blog

Expert Insights on Steam Systems, Fluid Control & Energy Efficiency

Explore technical articles, engineering insights, product applications, and industry trends covering steam systems, steam traps, pressure reducing valves, safety valves, condensate recovery, and energy-saving solutions for industrial applications.
「Knowledge Not Shared is Energy Wasted.」by Armstrong International.

Technical Articles

Q&A

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Armstrong Products Mihana Products Technical Information

Control valve

pdf / 1.50 MB

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Wireless system

pdf / 1.54 MB

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Armstrong Steam trap

pdf / 10.61 MB

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Armstrong Pumping trap

pdf / 2.84 MB

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Armstrong Liquid drainer (Air trap)

pdf / 1.78 MB

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Armstrong Air Vent

pdf / 811.32 KB

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