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Quotes - Engineering - SalesAT75DW
Mueller| Product | Style | Ratings | Configuration |
|---|---|---|---|
| Heat Exchanger | Plate & Frame | 300 PSI / 410°F | Double Wall |
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Note: the unit pictured is representative of the standard build and may not exactly depict p/n AT75DW as shown on this page.
AT75DW specifications
Description
AT75DW is the double-wall configuration of the Mueller Accu-Therm AT75 frame. Each heat transfer wall is built from two identical plates nested together and fully welded at the port locations, and the resulting pair installs in the frame exactly as a single plate would. If either sheet is penetrated, fluid escapes to the edge of the pair rather than crossing into the opposite stream, where it is visible for immediate detection. That makes the configuration the standard choice where cross-contamination is unacceptable: potable water heating, transformer and lubricating oil cooling, quench oil, and acid duty. Plate dimensions are 75-5/8" by 25-1/2" on 6" ports, plate packs run 34-5/8" - 160-5/8", and the frame covers about 120 - 2,900 sq ft of surface. Water flow reaches roughly 1800 GPM. The second wall costs only a small amount of thermal efficiency versus the single-wall AT75.
Product Overview
Part Number:
AT75DW
Series:
Accu-Therm Double-Wall
Brand:
Mueller
Codes & Compliance:
ASME Sec VIII Div 1, CRN
Also Written:
AT 75DW, AT-75DW, AT75 DW, AT75-DW
Configuration & Size
Surface Area (Sq/Ft):
120 - 2,900 sq ft
Connection Type:
Studded port standard; lap-joint, weld-neck, ferrule, Victaulic
Frame Type:
B | B Frame (Beam)
Max Plate Count:
335 double-wall pairs (est.)
Passes:
Single pass standard; multi-pass available
Plate Height:
75-5/8"
Plate Pack Length Range:
34-5/8" - 160-5/8"
Plate Pattern:
Chevron, welded double-wall pair
Plate Thickness:
0.5 mm per sheet, two per wall
Plate Width:
25-1/2"
Port Size:
6"
Wall Construction:
Double wall - vented welded plate pair
Heat Transfer Area per Plate (Sq/Ft):
3.87 per double-wall pair (est.)
Max Flow Rate (GPM):
1800
Performance Rating:
Slightly below the equivalent single-wall frame
Performance Rating (Basis):
Mueller states only a small impact on thermal efficiency from the second wall; estimate, confirm with a rated selection
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: Clip-In
- Plate: 316 SS standard; 304 SS, Titanium, Hastelloy C-276, SMO 254 optional
Rating
- Max Temperature: 410°F design; gasket dependent
- Max Working Pressure: 300 PSI (est.)
- Min Temperature: -20°F
