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  • wpn
  • wpn40-b
  • wpn40-b1
Technical Specification
  
Size1 1/2"
Connection150# FLG
Dimension9.2(L), 5.76(H), N/A(H1), N/A(H2), 3.6(H3)
Weight (lbs)0
Max. Operating Pressure (psig)319
Max. Allowable Pressure (psig)470 PSIG @ 482°F
Max. Allowable Temperature842°F @ 220 PSIG
Material Specification
  
BodyGrafoil/Garlock
CoverGrafoil/Garlock
Cross Reference
  
Spirax Sarcon/a
WPN40-A-R22-16-F150-IS
QTY :
Product Overview
DRIP, TRACING: WPN Series Bi-metallic steam traps are used in steam tracing, steam main drips and non-critical process equipment. They are extremely robust and reliable, making them a suitable choice for high pressure applications as well as outdoor applications that are subject to freezing. They are used in systems where a quick discharge of air, non-condensable gases and large quantities of cold water need to be discharge at start-up.
Features
• Excellent for high-pressure and superheated steam applications
• Freeze-proof and resistant to waterhammer
• Suitable for superheated steam
• In-line repairable
• Trap can be welded into line
How It Works
When the system is cold, the trap is fully open; discharging air and cold condensate. When the bi-metallic plates inside the trap heat up, they expand; pulling the seat closed and restricting flow. Prior to steam temperature being reached, the trap shuts off tightly. Cooler temperatures cause the seat to open further. Therefore, trap capacity will increase when colder condensate is in contact with the Bi-metal element. Trap capacity is therefore given at different temperatures below saturated steam temperature.
Dimension and Weights

WPN-40 with R22 or R32 Controller
(screw-on cover) 1/2", 3/4", 1"

WPN-40 with R22 or R32 Controller
(bolt-on cover) 1-1/2", 2"