# Refinery and Petrochemical Heat Exchanger Maintenance

> Refinery and Petrochemical Heat Exchanger Maintenance: Rolling in hazardous areas, thick-wall tubes and flared joints, plus tube end leak testing and pipe…

- Source: Hefei Lanbo Electric Machines and Tools Technology Co., Ltd. (Lanbo)
- URL: https://hflanbo.com.cn/en/solution/shihua.html
- Last updated: 2026-10-23
- Phone: +86-551-6288 4258 / +86-551-6287 6222 / +86-551-6288 4054 / +86-136 3706 6767; Email: Lanbo@hflanbo.com.cn; Address: 159 Tiandu Road, Hefei Economic and Technological Development Zone, Hefei, Anhui 230601, China

## Details

Typical jobs
Turnarounds in areas with flammable or explosive media, where tools must be spark-free
Rolling thick-wall carbon steel and alloy tubes at high torque
Waste heat boilers and steam generators that need flared joints
Weld preparation and in-line cutting of pipe
Recommended tools
HD series hydraulic tube rollers: explosion-proof versions available, 64–1030 N·m
850 series air-driven tube rollers: spark-free, stop automatically at the set torque
DZ-C electric tube rollers for large thick-wall tubes, Φ45–Φ159 mm
F series flaring expanders: roll and flare in one pass
GPN / GPK ID-mounted beveling machines and OE OD-mounted cutting and beveling machines
What we need to know
Tube material, OD, wall thickness and tubesheet thickness
Hazardous-area rating; air or power supply on site
Number of tubes and schedule