NTD600 SERIES
THERMO-ACTIVE TRAP
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Installation Tip: Always install STV Test & Block Valve as part of trap station
SEE PAGE 354
Installation Tip: Add Uniflex Pipe Coupling for ease of maintenance
SEE PAGE 374
Incoming air and condensate flow through the
trap body and into the control chamber. Line
pressure raises the disc off the seat allowing
complete discharge. When flashing condensate
enters the cartridge, flow velocity increases,
creating low pressure underneath the disc.
Flashing condensate at high velocity strikes the
inside wall of the disc chamber and is deflected
to the top of the disc causing a pressure buildup. The disc
is forced down onto the seat by this pressure imbalance.
The trap remains closed as flashed vapor in the control
chamber keeps the disc seated. Pressure inside the cap is
not lowered until the trapped flash vapor condenses due to
body radiation. Condensing steam lowers the pressure
above the disc. Disc is then lifted and the cycle repeated.
NTD600 SERIES
THERMODYNAMIC
STEAM TRAPS
Pressures To 600 PSIG (41.3 barg)
Temperatures to 800°F (426°C)
Compact Design — Hardened stainless steel disc is the
only moving part.
Inexpensive — Low initial cost is less expensive than
repairable technologies.
Simplifies Installation — Works in any position.
Rugged — Handles water hammer and superheat.
Reliable, Efficient Operation — Blast discharge helps to
eliminate dirt buildup and provides tight shutoff
Freeze resistant — Self draining design prevents freezing.
All Stainless Steel Construction — Resists both internal
and external corrosion.
Easy to Monitor — Audible discharge cycle makes
checking operation simple.
MODELS
●
NTD600–Thermodynamic Disc Trap
●NTD600S–NTD600 with integral strainer
●NTD600B–NTD600S with blowdown valve
APPLICA TIONS
●
Steam Tracing
●Drips
●Heating
NTD600 Model Only:
Canadian Registration # OE0591.9C
OPERA TION