1-805-484-2992
Quotes - Engineering - SalesAT40L
Mueller| Product | Style | Ratings | Configuration |
|---|---|---|---|
| Heat Exchanger | Plate & Frame | 350 PSI / 410°F | F / B Frame |
Download Datasheet
Note: the unit pictured is representative of the standard build and may not exactly depict p/n AT40L as shown on this page.
AT40L specifications
Description
AT40L is the L-series plate configuration of the Mueller Accu-Therm AT40 frame. It is a distinct part from the base AT40: the frame and port geometry are shared, but the plate pressing is not, so an L plate and a base plate are not interchangeable in a pack and their gaskets differ. The L designation appears on this frame in Mueller and aftermarket parts catalogs. Mueller does not publish its meaning; it is carried here because installed units and replacement-parts listings use it, and a buyer working from a nameplate will search it as written. Frame geometry is unchanged - 70-1/4" by 27" plates on 4" ports, packs from 33-7/8" - 159-7/8", roughly 99 - 2,292 sq ft of surface at about 4.2 square feet per plate, and water flow to 800 GPM. Gaskets attach by the Loc-In method. Frame styles offered: F Frame - intermediate size, bolted head and tail plate; B Frame - for larger units, plates hang from the upper guide bar; capacity to 900 plates. If you are matching a nameplate, the series letter is part of the part number and needs to carry through to any plate or gasket order.
Product Overview
Part Number:
AT40L
Series:
Accu-Therm
Brand:
Mueller
Codes & Compliance:
ASME Sec VIII Div 1, CRN, DNV
Also Written:
AT 40L, AT-40L, AT40 L, AT40-L
Configuration & Size
Surface Area (Sq/Ft):
99 - 2,292 sq ft
Connection Type:
Studded port standard; lap-joint, weld-neck, ferrule, Victaulic
Frame Type:
F, B | F Frame (Intermediate), B Frame (Beam)
Max Plate Count:
545 (est.)
Mounting:
Floor mounted frame
Passes:
Single pass standard; multi-pass available
Plate Height:
70-1/4"
Plate Pack Length Range:
33-7/8" - 159-7/8"
Plate Pattern:
L series, chevron H / V
Plate Thickness:
0.5 mm standard
Plate Width:
27"
Port Size:
4"
Wall Construction:
Single wall gasketed
Heat Transfer Area per Plate (Sq/Ft):
4.2 (est.)
Max Flow Rate (GPM):
800
Performance Rating:
U-value 1,500 BTU/hr-ft²-°F and greater
Performance Rating (Basis):
Clean water-to-water service; 1F to 3F 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: Loc-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
