SFT30A Lever Ball Float Steam Trap

SFT30A 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 PN40
Max. allowable pressure (Shell) 3.46MPa/200°C
Max. allowable temperature (Shell) 350°C/2.92MPa
Factory steam action test >3times/1.6MPa
Max. operating pressure 3.2MPa
Max. operating temperature 350°C
Factory cold test pressure 6.0MPa
Air test 2.0MPa

 

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

stf30a 1

stf30a 2

unit (mm)

Connection Pressure DN(IN) L H h W KG
T/W PN16/25/40CL150/300 15(1/2″) 170 210 87 230 12.1
20(3/4″) 170 210 87 230 12.2
25(1″) 170 210 87 230 12.3
32(11/4″) 170 210 87 230 12.4
40(11/2″) 230 210 87 230 13.7
50(2″) 230 210 87 230 13.8
F PN16/25/40CL150/300 15(1/2″) 230 210 87 230 14.8
20(3/4″) 230 210 87 230 15.1
25(1″) 230 210 87 230 15.5
32(11/4″) 230 210 87 230 15.9
40(11/2″) 230 210 87 230 16.3
50(2″) 230 210 87 230 16.7
65(21/2″) 230 Vertical Installation:360) 210 87 230 17.3
80(3″) 230 Vertical Installation:360) 210 87 230 17.9
100(4″) 230 Vertical Installation:360)(300LB:270) 210 87 230 19.5
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