Tubular
Design
 APV
ParaTube (tubular heat exchangers) can be supplied with either
straight tubes or corrugated tubes. They all follow a similar
construction format with a single tube or number of smaller
tubes enclosed within an outer shell. They are available in
the four configurations and can be manufactured as a fully-welded
design, with removable end caps or with built-in thermal expansion
protection of O-rings or packing between the shell and tube
bundle.
Product
range APV ParaTube
Corrugated
Double Tube (CDT)
The
APV ParaTube CDT consists of a single corrugated tube concentrically
positioned in a larger diameter outer tube. Tube diameters
vary according to flows and the size of any particulates
which
may be present. The double tube offers a completely unrestricted
flow path down the center tube. This design makes them particularly
well suited for heating or cooling products with very high
pulp or fibre content, or products which contain a substantial
quantity of particulates
which
must be processed with a minimum loss of identity.
Corrugated
Triple Tube (CTT)
The
APV ParaTube CTT consists of a center tube concentrically
positioned in a middle tube which is concentrically located
in the outer tube. Stainless steel spacers are used to keep
the tubes properly separated. The result is an annular space
where heat transfer effectively occurs from both sides. The
triple tube is generally applied to high viscosity or Newtonian
fluids which may or may not contain small fibres or particulates.
Corrugated
Quadruple Tube (CQT)
The
APV ParaTube CQT is a unique design that allows significant
flexibility in annulus gap to optimize heat transfer and pressure
drop. It allows balancing of flow rates and pressure drop
ratios between the inner and outer annulus. This feature is
critical to successful heat transfer of laminar and/or non-Newtonian
fluids, particularly when applying it to product-to-product
regeneration.
Corrugated
Multi-Tube (CMT) 
The
APV ParaTube CMT consists of smaller diameter corrugated tubes
aligned in parallel within a larger diameter outer shell.
Because of the number of tubes within a shell, this design
maximizes heat transfer surface in a given volumetric space.
The CMT is ideal for heating or cooling duties of lower viscosity
products or those containing whole juice cells or pulp. Regeneration
can be either direct or indirect.
Features/benefits
- Working temperatures up to 285°C
- Design pressures to 60 bar
- Flexibility in materials of construction
from carbon steel to special alloys
- High particulate capacities
- Can handle high viscosity products
- Resistant to fouling
- Robust
- Easy maintenance
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