Series TA-FTI (In-line)

Operation

Tunstall Corp. produces a full line of Float & Thermostatic Steam Traps containing a float valve mechanism which modulates to discharge condensate continuously, while non-condensable gases are released by a separate internal balanced pressure thermostatic air vent (The Tunstall Capsule).

Available in sizes 3/4″, 1″, 1-1/4″, 1-1/2″ and 2″ and PSI 15, 30, 75 and 125. All Tunstall float and thermostatic traps can be serviced without disturbing system piping.

Features

  • In-line piping design provides complete drainage while minimizing vertical height change.
  • Ideal for overhead applications.
  • For commercial and industrial applications such as air make-up coils, cooking kettles and unit heaters.
  • Below condensate level seat design prevents steam leakage.
  • Stainless steel internal components.
  • Designed for In-line repair.
  • Rugged thermostatic element eliminates air binding.
  • Resistant to water hammer and corrosion.
  • Maximum design pressure 250 psig (17.3 bar).
  • Maximum operating pressure 175 psig (12.1 bar).
  • Maximum temperature 406°F (208°C).

Construction

Tunstall float and thermostatic traps feature all stainless steel interiors, heavy duty trap housings, easy access to internal parts and convenient piping connections.

Materials of Construction
Body & Cover Cast Iron-30,000 psi tensile
Valve Pin and Seat Stainless Steel (hardened)
Float Stainless Steel
Bracket & Lever Assembly Stainless Steel
Thermostatic Air Vent Stainless Steel Cage and Thermal Element
Cover Bolts Grade 5
Draining Plug 1/4″ NPT, Steel

Specifications

TRAP DISCHARGE CAPACITY in lbs/hr
DIFFERENTIAL PRESSURE (PSI)
Model Size
NPT
PSIG
Orifice
¼ ½ 1 2 5 10 15
TA-FTI3-15 ¾” .253 390 500 680 910 1100 1450 1600
TA-FTI4-15 1″ .253 390 500 680 910 1100 1450 1600
TA-FTI5-15 1¼” .312 600 770 980 1240 1640 2000 2340
TA-FTI6-15 1½” .500 1280 1700 2050 2550 3500 4400 5300
TA-FTI8-15 2″ .687 2500 3150 4000 5000 6800 8300 9800

Other PSI available. Click bulletin below for Capacity chart.

 NOMINAL DIMENSIONS (Inches) & WEIGHTS
Model Size A B C D E Weight
(lbs.)
TA-FTI3-15 ¾” 5.50 6.56 6.625 1.19 3.50 11.7
TA-FTI4-15 1″ 5.50 6.56 6.625 1.19 3.50 11.7
TA-FTI5-15 1¼” 5.50 6.56 6.625 1.19 3.50 11.7
TA-FTI6-15 1½” 5.375 5.75 6.375 1.375 3.50 17.0
TA-FTI8-15 2″ 5.375 5.75 6.375 1.375 3.50 17.0

BULLETIN: #TA-FTI-0513B – In-Line Float & Thermostatic Steam Traps – Series TA-FTI