Main Image
  • fda500-400x400
  • fda500-a-400x400
  • fda500-b-400x400
  • fda500-c-400x400
Technical Specification
ConnectionTW x TW
Weight (lbs)2.25
DimensionSee Dimensional Drawing
Max. Operating Pressure (psig)90
Max. Allowable Pressure (psig)145 PSIG up to 338°F
Max. Allowable Temperature350°F @ 132 PSIG
Material Specification
Clamp304 SS
BodyStainless Steel,AISI 316L
Thermal ElementStainless Steel,AISI 316L
Element PlateStainless Steel,AISI 316L
GasketTeflon/Encapsulated Viton
Cross Reference
Spirax Sarcon/a
Product Overview
DRIP, PROCESS: FDA500 Series thermostatic clean steam traps are used in clean steam applications as drip traps on piping runs as well as for drainage for CIP/SIP  systems and various process vessels. Available with 2°F sub-cool bellows.
• All wetted parts are 316L stainless steel
• Electro-polish finish of 20-25 microinches RA on internal surfaces of body. Consult factory for 15RA max surface finish option.
• Electro-polish finish of 25-32 microinches RA on external surfaces of body
• Operates close to saturation curve to minimize condensate back-up
• Completely self-draining in the vertical downward flow orientation
How It Works
This trap contains a welded 316L stainless steel thermal element that expands when heated and contracts when cooled. When air and sub-cooled condensate are  present, the trap is in an open discharge position. When steam reaches the trap, the element expands, closing the trap tightly.
Selection / Sizing / Capacities

The steam Trap shall be all 316L stainless steel thermostatic type with a balanced pressure bellows that operates close to saturated steam temperatures. Internal body parts shall have an electro-polish finish of 20-25 microinches RA internally and a 25-32 finish externally. The unit shall have a split-body sanitary clamp design for easy maintenance. Trap shall be completely self-draining when mounted vertically.

Note:  Capacities at 10ºF below saturation.
Dimension and Weights