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Yarway 741 and 731 Unibody Thermodynamic Steam Trap
Yarway 731
Yarway 741
Thermodynamic piston steam traps that provide consistent performance in less than perfect conditions.
Yarway 741 and 731 Unibody steam traps are designed for applications such as rotating cylinders, submerged coils, and jacket kettles.
Yarway 741 and 731 Unibody Thermodynamic Steam Trap

Specs

Technology
Thermodynamic (Piston)
Size
NPS 1/2, 3/4, and 1 / DN 15, 20, and 25
Maximum Temperature
750°F (400°C)
Operating Pressure
Type 731/741 - 20 to 300 psig (1.4 to 21 bar)
Type 731H/731H - 40 to 600 psig (21 to 41 bar)
Back Pressure
Up to 40% of inlet pressure, psia/bar
Capacity
Up to 3900 lb/hr (1772 kg/hr)
Connections
NPT, Socket weld
Materials
Low carbon (0.15% max.) chrome moly body and stainless steel trim

Features

  • Simple, In-line repair using quick change capsule
  • Freeze Proof
  • Unaffected by water hammer
  • Hardened stainless steel construction provides exceptional corrosion resistance
  • Open failure mode prevents water hammer in steam distribution mains
  • Easily switch to disk or thermostatic technology with a simple capsule changeout
  • Withstands superheat
  • Self-draining (vertical mount)
  • Single moving part
  • Constant bleed for applications such as rotating cylinders, submerged coils, and jacket kettles