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.

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

| Parameter | Value (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 pressure | 1.5 bar g (22 psi g) |
| Minimum operating temperature | 0 °C (32 °F) |
| PMOB (Maximum operating backpressure) | 80% of upstream pressure |
| Maximum cold hydraulic test pressure | 149 bar g (2,161 psi g) |
| Weight (approximate) | 1.75 kg (3.86 lb) |

Materials
| Part | Material | Standard |
|---|---|---|
| Body | Stainless steel | 1.4308/ASTM A351 CF8 |
| Top cap | Stainless steel (ENP coated) | 1.4301/ASTM A479 304 |
| Insulating cover | Stainless steel | EN 10088-1 1.4301 |
| Disc | Hardened steel | 1.2379 |
| Seat | Hardened steel | 1.2379 |
| Strainer screen | Stainless steel | ASTM A478 316L |


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.