Mitsubishi Nagasaki Machinery Mfg. Co., Ltd.

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We have established a thorough quality management system based on ISO 9001. Also, using our expertise in detailed design and fabrication, including stress analysis, and state-of-the-art facilities, we have prepared a comprehensive production system that enables us to perform integrated manufacturing.

Super-high pressure equipment

We provide support from manufacturing to repairs of pressure vessels and heat exchangers with our diverse knowledge of high pressure equipment including super-high pressure reactors, reactor tubes, valves used in LDPE plants.

Vertical heat exchangers
High-pressure vessel
Super-high pressure double pipes
Super-high pressure reactor

Various pressure vessels

We design and manufacture various types of pressure vessels from small units to over 360 tons in compliance with various regulations and standards such as ASME S, U, U2 and U3, Pressure Vessel Class I and II, the Gas Business Act, and so on.

Buffer tank
Plate type heat exchanger
ASME U3 Stamp

In-house pressure-resistance test facilities

We can handle autofrettage and pressure testing of super-high pressure reactor tubes using 1,000 MPa hydraulic pumps.

Pressure testing room
Inside the pressure testing room
High-pressure pump
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