PT660 pages

PT66
Float and Thermostatic Steam Traps
DN40, DN50

DESCRIPTION:
High capacity float and thermostatic (internal air vent)
steam traps are designed for draining condensate from
all types of low and medium pressure steam heating
and process equipment.
Typical applications include unit heaters, heat
exchangers, driers and jacketed vessels.
Horizontal installation.

AVAILABLE TYPES:
PT 66 - with thermostatic air vent
PT 66S- SLR (with steam lock release)
PT 66C - with thermostatic air vent and SLR.

FEATURES:
Modulating discharge.
Discharges condensate at steam temperature.
Excellent air venting (by thermostatic air vent).

USE: Saturated and superheated steam.
SIZES: DN40, 50

INSTALLATION:

CONNECTIONS: Screwed (NPT/BSPT/BSP)

Horizontal installation with flow from left to right.
The trap should be installed horizontally below the
drain point of the equipment in a position such that the
float arm is in a horizontal plane and the float rises and
falls vertically, with the flow direction as indicated on
the cover.
The arrow on the nameplate should be pointing
vertically upwards.
Max. differential pressure range:
PT66-4.5 : 4.5 bar
PT66-10 : 10 bar
PT66-14 : 14 bar

Flanged / Socket weld
Non IBR1 / IBR

LIMITING CONDITIONS:
PMA: Max. allowable pressure
TMA: Max. allowable temperature
PMO: Max. operating pressure
TMO: Max. operating temperature
Body shell design rating
Cold hydro test pressure

16 bar(g)
220 ºC
14 bar(g)
220 ºC
20 bar(g)
426 ºC
32 bar(g)

TRAP DISCHARGE CAPACITY IN kg/hr
MODEL
PT66-4.5
PT66-10
PT66-14

Orifice*
Size (mm) 0.04 0.07
28.0
20.0
16.0

*Double seated valve

1

Indian Boiler Regulations

DIFFERENTIAL PRESSURE (kg/cm2)
0.14

0.35

0.70 1.00

1.40

2.10

2.80 3.50

4.50

5.25

7.00

8.50

10.0 12.25 14.00

3150 3850 5220 6045 6390 7400 8025 9940 11550 12910 15300 ----- ----- ----- ----- ----- -----2035 2560 2820 3760 4700 5745 6525 7310 7830 8610 9800 10440 12005 13310 15050 ----- ----1300 1575 2230 2580 3000 3660 4175 4675 5015 5510 6325 6670 7675 8510 9005 10525 11645