What is the difference between UTD26 and UTD26Y variants?

UTD26Y variants include an integral strainer within the trap body. UTD26 variants without integral strainer must be installed downstream of a Y-type strainer or on a pipeline connector with built-in strainer (such as PC20).

When should I select the anti-air-binding disc option (LA/HA variants)?

The anti-air-binding disc is recommended for applications where air or non-condensable gases may accumulate, such as during system start-up or in tracing lines. Note that these variants have a lower maximum operating temperature of 255°C compared to 370°C for standard models.

What pipeline connectors are compatible with the UTD26?

The UTD26 is compatible with PC10HP (straight connector), PC20 (with Y-type strainer), PC3_ (with one isolation valve), PC4_ (with two isolation valves), and STS17.2 steam trapping stations. The connector type determines the available end connections and overall assembly pressure limits.

Can the UTD26 handle backpressure in my system?

Yes, but backpressure should not exceed 80% of the upstream pressure for proper thermodynamic operation. Verify your system backpressure conditions before selection.

Is certification available for critical applications?

Yes, EN 10204 3.1 material certification is available. All certification and inspection requirements must be specified at the time of order placement.

SPIRAX SARCO · STEAM TRAPS

Spirax Sarco UTD26 Stainless Steel Thermodynamic Steam Traps with Swivel Connector

Name: Spirax Sarco UTD26 Stainless Steel Thermodynamic Steam Traps with Swivel Connector
Brand: Spirax Sarco

Spirax Sarco UTD26 stainless steel thermodynamic steam traps for mains drainage & tracing. ASME 600 rated, corrosion-resistant ELNP finish.

Request a Quote More Steam & condensate

Overview

The Spirax Sarco UTD26 series are stainless steel thermodynamic steam traps designed for efficient condensate removal in industrial steam systems. Featuring an electroless nickel preparation (ELNP) finish, these traps deliver excellent corrosion resistance and energy efficiency in demanding plant environments.

The UTD26 attaches to pipeline connectors via a two-bolt swivel arrangement, enabling quick and easy replacement during maintenance. The range includes variants with integral strainers (UTD26Y series) and models with anti-air-binding discs (UTD26LA/HA variants) for applications where air venting is critical. Units without integral strainers require an upstream Y-type strainer for proper operation.

These steam traps comply with EU Pressure Equipment Directive (PED), UK Pressure Equipment Regulations (PER), and are fully ASME compliant. EN 10204 3.1 certification is available upon request.

Key Features

Stainless steel construction with ELNP corrosion-resistant finish
Thermodynamic operating principle for reliable condensate discharge
Swivel connector design for rapid trap replacement
Available with or without integral strainer
Anti-air-binding disc option for improved air handling
Compatible with multiple pipeline connector types (PC10HP, PC20, PC3_, PC4_, STS17.2)
Optional insulating cover for outdoor/exposed installations
Optional integral blowdown valve for debris removal

Specifications

Parameter	Value
Body Design Standard	ASME B16.34 Class 300
Maximum Allowable Pressure (PMA)	49.6 bar g @ 38°C (719 psi g @ 100°F)
Maximum Allowable Temperature (TMA)	425°C @ 28 bar g (797°F @ 406 psi g)
Maximum Operating Pressure (PMO)	26 bar g (377 psi g)
Maximum Operating Temperature (TMO) — Standard	370°C @ 26 bar g (698°F @ 377 psi g)
Maximum Operating Temperature (TMO) — Anti-air-binding	255°C @ 26 bar g (491°F @ 377 psi g)
Minimum Operating Temperature	0°C (32°F)
Maximum Differential Pressure (DPMX)	26 bar g (377 psi g)
Maximum Backpressure	80% of upstream pressure
Minimum Inlet Pressure	0.25 bar g (3.6 psi g)
Cold Hydraulic Test Pressure	75 bar g (1087.7 psi g)
Body Material	Stainless steel A217 Gr. CA15 (ELNP)
Cap Material	Stainless steel A479 304
Disc Material	Stainless steel BS 1449 420 S45
Approximate Weight	0.75 kg (1.65 lbs)
Model	Description
UTD26L	Low capacity — mains drainage and tracing
UTD26H	Higher capacity applications
UTD26LA	Low capacity with anti-air-binding disc
UTD26HA	Higher capacity with anti-air-binding disc
UTD26LY	Low capacity with integral strainer
UTD26HY	Higher capacity with integral strainer
UTD26LAY	Low capacity with integral strainer and anti-air-binding disc
UTD26HAY	Higher capacity with integral strainer and anti-air-binding disc

Applications

The UTD26 thermodynamic steam traps are suited for:

- Steam main drainage applications - Steam tracing lines in refineries and chemical plants - Process equipment condensate removal - High-pressure steam systems up to 26 bar g - Installations requiring corrosion-resistant materials - Applications where quick trap replacement minimizes downtime

Typical industries include petrochemical, pharmaceutical, food processing, textiles, and power generation facilities.

Frequently Asked Questions

Get a Quote

Contact PC Engineering for pricing, availability, and technical support for the Spirax Sarco UTD26 Stainless Steel Thermodynamic Steam Trap. Call us or fill in our inquiry form — our engineers will respond within 24 hours.

Related Steam Traps

Brand

Find the losses before you invest in new equipment.

Steam and pump system walkthroughs that identify inefficiencies, energy losses and improvement priorities before any new product is specified.

Request an Energy Audit