Description

Product Overview

The Spirax Sarco UTDS46M is a thermodynamic steam trap. It controls the release of condensate and traps steam in low capacity applications, providing quick installation and replacement via a two-screw attachment to suitable pipeline connectors.

Spirax Sarco UTDS46M connected to a PC10HP pipeline connector

Key Features

  • Workshop maintainable stainless steel construction.
  • Includes an integral strainer, integral air vent, insulation cover, and a replaceable seat.
  • Attaches to PC10HP, PC3_, or PC4_ pipeline connectors.
  • Optional BDV2 integral blowdown valve available for pre-fitting or as a retrofit kit.
  • Complies with the European Pressure Equipment Directive 2014/68/EU.
  • Certification to EN 10204 3.1 is available upon request.

Technical Specifications

Spirax Sarco UTDS46M pressure and temperature limits chart

ParameterValue (ASME Class 600)
PMA (Maximum allowable pressure)99.3 bar g @ 38 °C (1,440 psi g @ 100 °F)
TMA (Maximum allowable temperature)425 °C @ 56 bar g (797 °F @ 812 psi g)
Minimum allowable temperature-40 °C (-40 °F)
PMO (Maximum operating pressure)46 bar g @ 425 °C (667 psi g @ 797 °F)
TMO (Maximum operating temperature)425 °C @ 46 bar g (797 °F @ 667 psi g)
Minimum operating pressure1.5 bar g (22 psi g)
Minimum operating temperature0 °C (32 °F)
PMOB (Maximum operating backpressure)80% of upstream pressure
Maximum cold hydraulic test pressure149 bar g (2,161 psi g)
Weight (approximate)1.75 kg (3.86 lb)

Spirax Sarco UTDS46M materials and parts diagram

Materials

PartMaterialStandard
BodyStainless steel1.4308/ASTM A351 CF8
Top capStainless steel (ENP coated)1.4301/ASTM A479 304
Insulating coverStainless steelEN 10088-1 1.4301
DiscHardened steel1.2379
SeatHardened steel1.2379
Strainer screenStainless steelASTM A478 316L

Spirax Sarco UTDS46M dimensions and weights

Spirax Sarco UTDS46M capacity chart

Applications

  • Low capacity steam, air, or condensate/water systems up to 46 bar g (Group 2 of the Pressure Equipment Directive).
  • Designed for installation in a horizontal pipe with the insulating cap uppermost.
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