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Quotes - Engineering - SalesAT75
Mueller| Product | Style | Ratings | Configuration |
|---|---|---|---|
| Heat Exchanger | Plate & Frame | 350 PSI / 410°F | B Frame |
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Note: the unit pictured is representative of the standard build and may not exactly depict p/n AT75 as shown on this page.
AT75 specifications
Description
This AT75 Accu-Therm unit is the gasketed plate-and-frame configuration Mueller builds on the 75 plate. Plate dimensions are 75-5/8" by 25-1/2", ports are 6", and the pack length adjusts across 34-5/8" - 160-5/8" to place roughly 120 - 2,900 sq ft of surface into service. Figure about 4.3 square feet per plate and up to 1800 GPM on water. Compared with a shell and tube of the same duty, the plate pack occupies a fraction of the floor space and can be reconfigured by adding or removing plates rather than replacing the exchanger. Gaskets use the Clip-In method. Frame styles offered: B Frame - for larger units, plates hang from the upper guide bar; capacity to 900 plates.
Product Overview
Part Number:
AT75
Series:
Accu-Therm
Brand:
Mueller
Codes & Compliance:
ASME Sec VIII Div 1, CRN, DNV
Also Written:
AT 75, AT-75
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:
670 (est.)
Mounting:
Floor mounted frame
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 H / V / combination (75X / 75P)
Plate Thickness:
0.5 mm standard
Plate Width:
25-1/2"
Port Size:
6"
Wall Construction:
Single wall gasketed
Heat Transfer Area per Plate (Sq/Ft):
4.3 (est.)
Max Flow Rate (GPM):
1800
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: Clip-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
