Condensed Catalog Featuring R410A Products Third Edition

Technical leaflet
Introduction
Thermostatic expansion valves, type TDE and TDEB
TDE Range 3-7 1 / 2
TR (R22), TDEB Range 8-40 TR (R22)
The TDE series of thermostatic expansion valves
is designed for use in:
n Air conditioning systems
n Heat pumps
n Water chillers
n Refrigerated containers
n Traditional refrigeration systems
The TDE product programs consist of two hermetic
valve designs:
n Single port (type TDE) and balanced port (type
TDEB). Valve selection is determined by the
application and the capacity required.
Single port version (type TDE)
n The single port’s simplified construction
is designed for use on systems with small
capacities (3 to 7.5 TR R22). Single port
design is effective because in smaller capacities
condensing pressure is negligible. Type TDE
single port valves can also be used for bi-flow
applications in the same capacity range.
Balanced port versions (type TDEB)
n The balanced port design has been developed
for large capacity systems (greater than 8 to 40
TR) where fluctuating condensing pressures are
present.
n The balanced port feature eliminates any
influence by condensing pressure on the
expansion valve function in the normal flow
direction.
n The TDEB design is unique in that it also
provides a balance function in the reverse
flow direction making it ideal for use in bi-flow
applications.
All TDE valves are available with a selection of
bulb charges with or without maximum operating
pressure (MOP) function.
Single and industrial pack quantities are available.
Features
Hermetically sealed solder valves
n Reduces the possibility of leaks in your system
Laser-welded, stainless steel thermostatic
element
n Provides longer diaphragm life, protection
against corrosion and optimum pressure
strength
Bi-flow function
n Reduces installation costs by reducing the
number of valves required in a heat pump
application
Patented double-contact bulb
n Allows for quick and easy installation and
provides for good heat transfer between pipe
and sensor
Available Refrigerants
n R22, R407C, R134a (special order)
Versions available with:
n Maximum operating pressure (MOP) function
n Bi-flow function
© Danfoss Inc. 01-07 (USCO)
USCOC.PK.000.C1.22
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