Pipe & Fittings

Nickel Twisted Tubes

The heat exchangers used MEILONG Twisted Tubes have 40% higher heat transfer coefficient for the same pressure drop as conventional shell & tube heat exchangers. Complex swirl flow on the shellside induces the maximum turbulence to improve heat transfer. Powerful tubeside turbulence is achieved even at high viscosities and/or low velocities. Uniform flow distribution gives more effective length and surface area than shell & tube exchangers.

Twisted Tube heat exchangers are self-supporting so baffles are not required. There is less vibration as tubes are supported at multiple contact points and the reduction in turbulence means no dead spots with the hope fouling will be reduced.

Comparing with conventional heat exchanger tubes, our Twisted Tubes have following features:
Higher heat transfer efficiency
Smaller exchangers and fewer shells
Less flow vibration
Reduced fouling
Increased capacity
Lower installed costs
Lower pressure drop

Twisted Nickel Tubes for Heat Exchanger

The heat exchangers used MEILONG Twisted Tubes have 40% higher heat transfer coefficient for the same pressure drop as conventional shell & tube heat exchangers. Complex swirl flow on the shellside induces the maximum turbulence to improve heat transfer. Powerful tubeside turbulence is achieved even at high viscosities and/or low velocities. Uniform flow distribution gives more effective length and surface area than shell & tube exchangers.

Twisted Tube heat exchangers are self-supporting so baffles are not required. There is less vibration as tubes are supported at multiple contact points and the reduction in turbulence means no dead spots with the hope fouling will be reduced.

Comparing with conventional heat exchanger tubes, our Twisted Tubes have following features:

* Higher heat transfer efficiency

* Smaller exchangers and fewer shells

* Less flow vibration

* Reduced fouling

* Increased capacity

* Lower installed costs

* Lower pressure drop

* Extended working time

Application:

Reformer for CCR and semi-regeneration

Hydrotreater

Hydrocracker

Alkylation equipment

Overhead condensers

Reboilers (kettle and J-shell)

Lean/rich amine

Interstage coolers for compressor

Tube material:

Low carbon steels: SAE1010, SAE1020

Stainless steels: 304, 304L, 321, 316, 316L

Duplex stainless steels: S31803, S32205

Nickels: 200, 201

Titanium: Gr.1, Gr.2, Gr.3

Copper nickels: C70600 (CuNi 90/10), C71500 (CuNi 70/30)

Other metals are available on request

Tube specification:

Other sizes are available on request

Metric or Imperial system measurement is available on request

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