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Technical specification · Fenix Traps

Fenix hydrodynamic steam trapWF

High-flow process · wafer · ½" to 1"

The WF (wafer) trap is designed for a wide range of flows and can operate in almost any process. It is best suited to high-flow processes: in most cases its venturis are large enough not to require a strainer. It is fitted between flanges.

No moving parts15-year warrantyFenix-made strainer
ISO 6552:1980 Technical drawing of the Fenix WF steam trap
Ref. WF · ½" (DN15) · Wafer
PMA
1,450 psig
100 barg
Maximum allowable pressure
TMA
1,022 °F
550 °C
Maximum allowable temperature
PMO
1,450 psig
100 barg · at 842 °F
Maximum operating pressure
TMO
1,022 °F
550 °C · at 0 psig
Maximum operating temperature

Operating parameters per ISO 6552:1980.

01

Built for process

Wafer trap for high-flow processes, fitted between flanges.

No moving parts

Works on a hydrodynamic principle with sized venturis. There is no disc, float or bimetal to wear out.

Usually no strainer

Its venturis are large enough that most high-flow processes need no strainer.

Between flanges

Wafer format fitted between flanges, with a length adjustable to your installation.

Up to 100 barg at 450 °C

100 barg PMO up to 450 °C and 550 °C TMO at zero pressure.

A

Shell and tube heat exchangers

Condensate discharge from the steam side under variable load.

B

Air heaters

Steam coils and batteries heating process air.

C

Calorifiers and reboilers

Process equipment with variable steam demand.

D

Cooking vessels

Jacketed vessels with heating cycles.

02

Configuration

Choose the options to see the dimensions, weight and limits of your trap.

Size
Your configuration
WF ½"
Size
½" (DN15)
Connection
Wafer
Dimension A
5.90 in · 150 mm
Approx. weight
2.86 lb · 1.3 kg
PMO
1,450 psig at 842 °F
Download datasheet (PDF)
03

Dimensions

Dimensions and approximate weight for each size.

Fenix WF steam trap dimension drawing
SizeA **Approx. weight
½" (DN15)5.90 in150 mm2.86 lb1.3 kg
¾" (DN20)5.90 in150 mm2.86 lb1.3 kg
1" (DN25)6.30 in160 mm3.3 lb1.5 kg

** The length can be adjusted to your installation. The highlighted row is the size selected under Configuration.

04

Operating range

Pressure and temperature limits with the saturated steam curve for reference. Enter your pressure to check your application.

02004006008001,0001,2001,4001,6000204060801000°F-18°C200°F93°C400°F204°C600°F316°C800°F427°C1,000°F538°CPressure [psig]Pressure [barg]TemperaturePMO 1,450 psigTMO
Operating areaSaturated steam curveYour operating point

Check your application

Enter your line saturated steam pressure. We calculate the saturation temperature and compare it with the operating area.

psig
Inside the operating area
Saturation temperature
364 °F · 184 °C
Allowable pressure at that temperature
1,450 psig
05

Components and materials

304L body and removable 316 inlet nozzle.

Exploded view of the Fenix WF steam trap and its components
No.PartMaterial
1Trap body304L stainless steel
2Inlet removable nozzle316 stainless steel
3GasketGraphite with stainless steel reinforcement

Spare parts

PartCode
Nozzle gasketG-3
06

Frequently asked questions

What maintenance and engineering teams ask us most about the WF trap.

What applications is the Fenix WF steam trap designed for?

A wide range of flows and almost any process, such as shell and tube heat exchangers, air heaters, reboilers and cooking vessels. It is best suited to high-flow processes.

What is the maximum operating pressure of the WF?

WF: 1,450 psig (100 barg) at 842 °F.

What sizes and connections does the WF come in?

½" (DN15), ¾" (DN20), 1" (DN25). Connections: Wafer, between flanges.

How is the WF maintained?

The inlet nozzle is removable and its gasket (G-3) is supplied as a spare part. In most cases no strainer is needed.

Does the WF need a strainer?

In most cases no: its venturis are large enough not to require one.

What warranty does the Fenix WF trap have?

The Fenix WF trap has a 15-year warranty.

What spare parts are available for the WF?

Nozzle gasket (G-3).

Need to select the right trap for your plant?

Our engineers review your operating conditions and recommend the right model, connection and size.