Air Trap AFT30A

  • 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.

Air Trap AFT30A

Description

Working Principle

Based on the differential density of steam and liquid.

Features
  • 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.
  • Patented flexible closing system and micron-level precision closing system double guarantee no steam leakage and long service life.
  • Pressure equalization pipe completely solves the air blockage.
  • Built-in filter makes the air trap work in a clean environment.
  • Choose different capacity curves according to the differential pressure,increase capacity.
  • Drain plug is designed at the bottom of the air trap to ensure that the internal water will be drained, to prevent floating ball from freezing damage in cold weather.
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: 420
Disc: 440C
Other internal parts: 304

AFT30 Displacement Curve

Structure Diagram (2)

unit (mm)

ModelSizeLHH1WWeight
AFT30ATDN25-321702608723512.5Kg
AFT30AWDN25-321702608723512.5Kg
AFT30AFDN25-322302608723517Kg

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