SFT40A Lever Ball Float Steam Trap

SFT40A Lever Ball Float Steam Trap

Description

Working Principle
  • Based on the differential density of steam and liquid.
Features
  • The valve body and bonnet are made of cast steel/forged steel.
  • All internal parts are made of stainless steel, and the wear allowance has been fully considered in the design of movable parts, which improves the service life of the trap.
  • Special flow channel design to achieve zero water hammer. System double guarantee no steam leakage and long service life.
  • Patented flexible closing system and micron-level precision closing
  • Built-in air vent valve to prevent steam lock.
  • The independent filter makes the trap work in a clean environment.
  • Choose different displacement curves according to the pressure.
  • Back pressure rating≥95%
  • A drain plug is designed at the bottom of the steam trap to drain intemal accumulated water after shutdown, preventing the float from being damaged by freezing.

 

Technical Standard
  • ISO 6553: Automatic steam traps – Marking
  • ISO 6554: Automatic steam traps -Face-to-face dimensions
  • ISO 6948: Automatic steam traps – Production and performance
    characteristic tests
Technical Parameters
Nominal pressure PN25
Max. allowable pressure (Shell) 2.45MPa/200℃
Max. allowable temperature (Shell) 450℃/1.03MPa
Factory steam action test >3 times/1.6MPa
Max. operating pressure 1.6MPa
Max. operating temperature 350℃
Factory cold test pressure 3.8MPa
Air test 2.0MPa

Bonnet: A105/F304/F316
Body:WCB/CF8/CF8M
Seat: 420
Disc: 440C
Other trims:304

stf40a 1

stf40a 2

unit (mm)

Connection Pressure DN(IN) L H h W KG
T/W PN16/25/40CL150/300 15(1/2″) 210 258 113 285 20.1
20(3/4″) 210 258 113 285 20.2
25(1″) 210 258 113 285 20.3
32(11/4″) 210 258 113 285 20.5
40(11/2″) 270 258 113 285 21.8
50(2″) 270 258 113 285 21.9
F PN16/25/40CL150/300 15(1/2″) 270 258 113 285 25.3
20(3/4″) 270 258 113 285 25.7
25(1″) 270 258 113 285 26.1
32(11/4″) 270 258 113 285 26.5
40(11/2″) 270 258 113 285 26.9
50(2″) 270 258 113 285 27.5
65(21/2″) 270 258 113 285 28.5
80(3″) 270 258 113 285 34.5
100(4″) 270 Vertical Installation:360) 258 113 285 36.7
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