The CONA S/SC ball float steam trap continuously discharges condensate near saturation temperature. The CONA TD thermodynamic disc trap operates via cyclic discharge. The CONA B bimetallic trap responds to temperature variations and can facilitate condensate sub-cooling. Proper selection depends on your specific process parameters and differential pressure.
CONA S / SC · TD · B
Float · Disc · Bimetallic
ANSI / ASME Fittings
NPT · Flanged · Welded
The Role of a Steam Trap in an Industrial Piping Network
A steam trap automatically discharges condensate and, depending on its design, non-condensable gases, while preventing the loss of live steam. Properly selected steam traps prevent condensate backup in equipment, water hammer, and energy losses. ARI CONA offers multiple operating principles engineered for boiler rooms and industrial steam processes.
DRAINAGE
Drain / Discharge
Condensate discharge engineered to handle both startup and continuous process operating loads.
STEAM
Energy & Power Generation
Minimizing live steam loss and preventing condensate backup in industrial systems.
MAINTENANCE
Reliability
Air venting, filtration, backflow prevention, and maintenance options configured to your specifications.
SERVICES
Product Selection
Technology engineered based on flow rate, differential pressure, and ASME or NPT connection requirements.
Three ARI CONA Steam Trap Technologies
Float traps for continuous discharge, thermodynamic disc traps for drip points, and bimetallic traps for controlled sub-cooling: three engineered solutions tailored to your service conditions.
MECHANICAL FLOAT
ARI CONA S / SC
Float and thermostatic (F&T) steam traps engineered for continuous condensate discharge at near-saturation temperatures. Models equipped with a thermostatic capsule ensure rapid, reliable air venting during start-up. Built to perform efficiently under variable operating loads.
Operating Principle
Float
NPS
½–4 (S) / ½–1 (SC)
ANSI Pressure Classes
150–900 / 150–300
Diagrams
631/632 · 634/635
Ideal for: heat exchangers, steam processes, and fluctuating condensate loads. Operating ranges vary by model.
DISC · THERMODYNAMIC
ARI CONA TD
Thermodynamic disc steam trap engineered for steam line drainage. Features intermittent discharge, a replaceable seat/disc controller, and high resistance to water hammer. Equipped with an integral internal strainer on the 640 or an external Y-strainer on the 641.
Operating Principle
Disc
NPS
⅜–1 depending on model
ANSI Pressure Classes
150–600
Figures
640 / 641 (Y)
Recommended applications: low points, steam line drainage, and compact steam trap stations.
BIMETALLIC · THERMOSTATIC
ARI CONA B
Bimetallic steam trap controlled by condensate temperature. It delivers controlled sub-cooling when process conditions permit, ideal for specific steam tracing lines and high-pressure installations.
Operating Principle
Bimetallic
NPS
½"–2"
ANSI Pressure Classes
150–2500*
Figures
600 / 601 (Y)
Recommended for applications where subcooling is permissible. *Maximum class rating depends on NPS and design configuration.
Selecting the Right Steam Trap: Float, Thermodynamic Disc, or Bimetallic?
These three types of steam traps are not directly interchangeable. Selecting the right solution depends on your target discharge temperature, effective differential pressure, and condensate flow rate fluctuations.
Bleed and Vent Technology
CONA S / SC Ball Float Steam Trap
Continuous discharge near saturation temperature, engineered for heat exchangers and fluctuating loads.
CONA TD Thermodynamic Disc Steam Trap
Intermittent condensate discharge in steam distribution systems and drip legs.
CONA B Bimetallic Steam Traps
Temperature-sensitive discharge, featuring subcooling when permitted by the application.
Selection Criteria
Condensate Load
Condensate flow rate during start-up and steady-state operation, including peak loads in kg/h or lb/h.
Differential Pressure
Upstream/downstream pressures, pressure drops, and condensate return back pressure.
Locations
NPS, flange class, NPT/SW/BW, orientation, filtration, and accessibility.
Provide us with the media, condensate flow rate, upstream and downstream pressures, temperature, and connection type: VAMECA will prepare a fully documented ARI CONA selection.
Where should ARI-CONA steam traps be installed?
From the distribution network to process equipment, the right steam trap discharges condensate at the required rate. VAMECA evaluates load conditions and selects the optimal technology for every trap station.
ASSEMBLY, REPLACEMENT & MAINTENANCE
CONA Universal, All-in-One, and CONA M
To complement the three main product families, ARI delivers compact ANSI solutions designed to streamline the installation and maintenance of steam trap stations, as well as balanced pressure thermostatic steam traps.
CONA Universal ANSI
S, TD, B, and M modules on ANSI Class 300 universal connectors. Selection of 681 to 684 connectors with various connection options tailored to your configuration.
CONA All-in-One
Integrated station featuring steam trap, isolation valves, strainer, check valve, and blowdown. Available in ANSI Class 300, NPS ½–1 configurations depending on design.
CONA M
Thermostatic capsule steam trap designed for temperature-sensitive condensate discharge. Available in ANSI Class 150–300, NPS ½–2 depending on the model.
Required Parameters for Steam Trap Sizing and Selection
Steam trap sizing depends on condensate load and actual system conditions, not merely the existing NPS.
Load
Condensate Flow Rate
Specify cold and operating loads (kg/h or lb/h).
Pressure Ratings
Upstream and downstream
Please specify the steam pressure, back pressure, and differential pressure.
Temperature
Saturated or Superheated
Please provide the system operating temperature and startup conditions.
End Connections
NPS · Class · NPT
Please specify the flange configuration, threading, weld type, orientation, and the applicable province.
A cohesive solution across your entire steam system
CONA steam traps seamlessly integrate into a complete steam system: STEVI for control, FABA for isolation, and SAFE/REYCO for pressure equipment protection. VAMECA provides expert guidance for selecting complementary equipment across Quebec and Canada.
Control & Regulation
ARI STEVI
Control valves for flow, pressure, and temperature management in your steam systems.
Isolation
ARI-FABA
Bellows seal stop valves engineered to isolate critical equipment and steam distribution systems.
Safety
ARI SAFE / REYCO
Safety relief valves for the protection of boilers and pressure equipment.
FAQ
Operation, technology selection, ANSI classes, end connections, and steam trap replacement: practical insights for your project.
Your Trusted Canadian Partner for ARI-CONA Steam Traps
Looking for a steam trap, a steam trap station, or a direct replacement for an existing unit? Send us your system operating parameters. VAMECA provides the technical expertise to help you select the optimal CONA series solution and prepare your detailed quote.
Local Technical Expertise and Support
VAMECA supports industrial operators across Quebec and Canada with proven expertise in steam and condensate systems.
Process-Specific Selection
Assessment of condensate load, differential pressure, technology, and end connections.
Official ARI datasheets, technical drawings, material specifications, and provincial CRN compliance details tailored to your selected model.
