VMV水波纹

AFT20 Air Trap

  • The 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.

AFT20 Air Trap

Description

Working Principle

Based on the density of vapor and liquid.

Features
  • The 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.
  • Patented flexible closing system and micron-level precision closing system double guarantee no steam leakage and long service life.
  • The pressure equalizing and balancing pipe completely solves the gas blockage.
  • The independent filter makes the trap work in a clean environment.
  • Choose different displacement curves according to the pressure.
  • The blowdown plug is designed at the bottom of the air trap to ensure that the internal ponding is removed after shutdown and prevent the floating ball from freezing.

 

Technical Standard
  • GB/T12250-2005 Steam Trap Terminology Marking Construction Length
  • GB/T22654-2008 Technical conditions of steam traps
  • GB/T12251-2005 Test methods for steam traps
  • ISO 6948 Automatic steam traps

Production and performance characteristic tests

Technical Parameters
Nominal pressurePN25
Max. allowable pressure (Shell)2.45MPa/200℃
Max. allowable temperature (Shell)450℃/1.03MPa
Factory steam action test>3 times/1.6MPa
Max. operating pressure1.6MPa
Max. operating temperature350℃
Factory cold test pressure3.8MPa
Air test2.0MPa

Bonnet: A105
Body: WCB
Seat: Martensitic Stainless Steel
Disc: Martensitic Stainless Steel
Other internal parts: Austenitic Stainless Steel

Capacity Chart

AFT20 Displacement Curve

Air Trap AFT20 Structure Chart

unit (mm)

ModelSizeLHH1WWeight
AFT20TDN15-25150225752279Kg
AFT20WDN15-25150225752279Kg
AFT20FDN15-25210225752601.5Kg

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