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Quotes - Engineering - SalesAT-25W
Mueller| Product | Style | Ratings | Configuration |
|---|---|---|---|
| Heat Exchanger | Plate & Frame | 300 PSIG / 300°F | Semi-Welded Cassette |
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Note: the unit pictured is representative of the standard build and may not exactly depict p/n AT-25W as shown on this page.
AT-25W specifications
Description
AT-25W is a Mueller Accu-Therm semi-welded plate heat exchanger. Plates are joined in welded cassettes - two plates welded together - so the refrigerant or aggressive stream is fully contained inside the welded portion, while the secondary side stays gasketed and the pack still opens for cleaning. That combination is what makes the design the standard choice for ammonia and halocarbon solution chilling, flooded and DX evaporators, and refrigerant condensing, where a fully gasketed pack would not be acceptable and a fully welded block could not be serviced. The frame measures 49.8" by 21.7" with port centers at 30.5" and 10.1", ports are 4", and rated flow reaches 800 GPM. Plates are AISI 304 stainless at 0.6 mm; gaskets are available in nitrile, EPDM, Viton, neoprene, and chloroprene, the last two selected for refrigerant-side compatibility. Design pressure is 150 to 300 PSIG with ASME code construction standard.
Product Overview
Part Number:
AT-25W
Series:
Accu-Therm Semi-Welded
Brand:
Mueller
Codes & Compliance:
ASME Sec VIII Div 1, CRN
Also Written:
AT 25W, AT25W
Configuration & Size
Connection Type:
Studded port, slip-on or weld-neck flange, ferrule. Rubber, steel, stainless, or Ti lined
Frame Type:
Bolted frame, carbon steel with blue paint; stainless frame optional
Passes:
Single pass standard
Plate Height:
49.8"
Plate Thickness:
0.6 mm
Plate Width:
21.7"
Port Size:
4"
Wall Construction:
Semi-welded - welded cassette / gasketed secondary
Max Flow Rate (GPM):
800
Performance Rating:
Suited to solution chilling and refrigerant condensing duty
Performance Rating (Basis):
Capacity depends on refrigerant, plate count, and approach; confirm with a rated selection
Materials of Construction
- Frame: Carbon steel, blue painted; stainless steel optional
- Gasket: NBR, EPDM, Viton/FKM, Neoprene, or Chloroprene
- Gasket Attachment: Glue-In
- Plate: AISI 304 stainless, 0.6 mm
Rating
- Max Temperature: 300°F (est., gasket dependent)
- Max Working Pressure: 300 PSIG (150 - 300 PSIG design range)
- Min Temperature: -20°F (est.)
- Test Pressure: 1.3 x MAWP
