Hydraulic Pressure Tube Expanding Machine

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1.Heat Exchanger Tubes Expanding Machine Introduction

The Hydraulic pressure tube expanding machine is a special expanding joint equipment for boiler and heat-exchanger manufacturing and maintenance. The equipment can reliably expand heat exchange tubes of various specifications and materials, and is especially suitable for the expansion of thick tube sheets and large-diameter tube heat exchangers. The heat exchanger produced by the rapid expansion machine expansion joint technology has uniform expansion joint, safe and reliable, long service life and low failure rate. In addition, the expansion joint operation is simple and the expansion joint speed is fast, which greatly shortens the manufacturing or maintenance time, reduces the production stop loss of the chemical plant, and has high economic benefits.

2.Heat Exchanger Tubes Expanding Machine Technical Parameters

● The highest expansion pressure: 3500Bar

● Common expansion pressure: 1800-3400 Bar

● Expansion speed: 6-8 times per minute

● Minimum expansion tube inner diameter: ≥5mm

● The thinnest tube sheet for expansion: 6mm

● Expansion tube wall range (inner diameter / outer diameter):

≤ strength expansion 1/1.25 stick expansion 1/1.4

● Expansion medium: emulsion or water

● Expansion rod interface: M10X1mm

● Operation handle weight: 1.5Kg

● Weight of the whole machine: 500Kg

● Dimensions of the whole machine: 126X96X150cm

● Power supply: three-phase 380V

● Input power: 5.5KW

● Tube sheet hole roughness: 6.3μm

● Strength expansion slot width (mm): 8-10-8 or 9-10-9-12

3.Hydraulic Pressure Tube Expanding Machine Working Principle

The pressure setting is mainly through the touch screen to set the pressure required by the user. The pressure of the expansion tube during operation is transmitted to the digital-to-analog conversion module through the transmitter. The pressure value is displayed on the touch screen "current pressure value". The current pressure value and the setting When the pressure values are equal, the decompression system works to relieve pressure, and the entire expansion process ends.

Heat Exchanger Tubes Expanding Machine Working Scenario