Series 49

Hi-Capacity Steam Traps

An ultra compact, light weight, all stainless steel trap with four internal bellows for high condensate loads, with smooth, modulated discharge.

Max pressure
300 psi (21 bar)
Max temperature
425 °F (218 °C)
Body rating
ANSI Class 300
Sizes
3⁄4" – 2" NPT
PT Series 49 high-capacity steam trap

Applications

High capacity process applications such as heat exchangers, reboilers and tank coils, or heating applications such as unit heaters.

Operating principle

An ultra compact, light weight, all stainless steel trap incorporates four bellows internally. The design assures high condensate discharge capability with smooth, modulated operation to minimize equipment vibration and downstream piping shocks. Four individual operating elements also assure a high degree of reliability and achieve non-stop continuous operation.

Design features

  • High capacity capability
  • Modulated smooth discharge
  • Failure-proof design
  • Self-draining and freeze-proof
  • Compact and light weight; easy installation
  • All stainless steel trap

Capacities

Capacity chart: trap flow rate versus inlet pressure
Capacities measured at near steam temperature.

Parts and materials

Cross-section drawing of the Series 49 trap with numbered parts
ItemPartMaterial
1Inlet fittingStainless steel
2Body housingStainless steel
3Body plateStainless steel
4Outlet fittingStainless steel
5BellowsStainless steel
6Mounting plateStainless steel
7Name plateAluminum
8Outlet bodyStainless steel

Dimensions and weights

End connectionin (DN)“D” Øin (mm)“L”in (mm)Weightlb (kg)
3⁄4 (20)3 3⁄4 (95)2 13⁄16 (79)1.36 (0.62)
1 (25)3 3⁄4 (95)2 15⁄16 (71)1.40 (0.66)
1 1⁄4 (32)3 3⁄4 (95)3 3⁄16 (81)1.64 (0.74)
1 1⁄2 (40)3 3⁄4 (95)3 7⁄16 (87)1.84 (0.83)
2 (50)3 3⁄4 (95)3 13⁄16 (97)2.32 (1.05)

Installation

Install trap vertically downward with a strainer at the trap inlet.