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Mueller| Product | Style | Ratings | Configuration |
|---|---|---|---|
| Heat Exchanger | Plate & Frame | 350 PSI / 410°F | C Frame |
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Note: the unit pictured is representative of the standard build and may not exactly depict p/n AT4 as shown on this page.
AT4 specifications
Description
The AT4 is a gasketed plate-and-frame heat exchanger from the Mueller Accu-Therm series, built around a 23" x 8" plate on a 1" port. Cold and hot streams alternate through gasketed channels formed by chevron-corrugated plates, which drives turbulence at low flow and gives approach temperatures in the 1°F to 3°F range that a shell and tube cannot reach. The frame accepts plate packs from 12" - 22-7/8", covering roughly 15 - 50 sq ft of heat transfer surface at about 0.5 square feet per plate. Rated flow is up to 80 GPM of water. Standard construction is 316 stainless plates with nitrile or EPDM gaskets in a painted carbon steel frame, and the pack expands in the field as duty grows. Available frame styles: C Frame - compact cantilever, for space-limited installations.
Product Overview
Part Number:
AT4
Series:
Accu-Therm
Brand:
Mueller
Codes & Compliance:
ASME Sec VIII Div 1, CRN, DNV
Also Written:
AT 4, AT-04, AT-4, AT04
Configuration & Size
Surface Area (Sq/Ft):
15 - 50 sq ft
Connection Type:
Studded port standard; lap-joint, weld-neck, ferrule, Victaulic
Frame Type:
C | C Frame (Cantilever)
Max Plate Count:
100 (est.)
Mounting:
Floor mounted frame
Passes:
Single pass standard; multi-pass available
Plate Height:
23"
Plate Pack Length Range:
12" - 22-7/8"
Plate Pattern:
Chevron H / V / combination (4P / 4F / 4G)
Plate Thickness:
0.5 mm standard
Plate Width:
8"
Port Size:
1"
Wall Construction:
Single wall gasketed
Heat Transfer Area per Plate (Sq/Ft):
0.5 (est.)
Max Flow Rate (GPM):
80
Performance Rating:
U-value 1,500 BTU/hr-ft²-°F and greater
Performance Rating (Basis):
Clean water-to-water service; 1°F to 3°F approach. Actual duty depends on plate count, pattern, and fluid properties.
Materials of Construction
- Frame: Painted carbon steel; stainless optional. Zinc-plated compression bolts
- Gasket: NBR or EPDM standard; High-Temp EPDM, Viton/FKM, Butyl. FDA/3-A
- Gasket Attachment: Glue-In
- Plate: 316 SS standard; 304 SS, Titanium, Hastelloy C-276, SMO 254 optional
Rating
- Max Temperature: 410°F design; 302°F - 329°F gasket limit
- Max Working Pressure: 350 PSI design
- Min Temperature: -20°F (MDMT 32°F typical)
- Test Pressure: 1.3 x MAWP
