MSL BASES

Vibration isolation manufacturer shall furnish integral structural steel bases. Rectangular bases are preferred for all equipment. Centrifugal refrigeration machines and pump bases may be T or L shaped. Pump bases for split case pumps shall be large enough to support suction and discharge elbows. All perimeter members shall be steel beams with a minimum depth equal to 1/10 of the longest dimension of the base. Base depth need not exceed 14”(350mm) provided that the deflection and misalignment is kept within acceptable limits as determined by the manufacturer. Height saving brackets shall be employed in all mounting locations to provide a base clearance of 1” (25mm). Bases shall be type WF as manufactured by Mason Industries, Inc.

MSL - 0.75” to 1.0” Deflection

FAN WHEEL MOTOR FRAME SIZES Approx. Ship Wt. (lbs)
Up to 215T 254T to 286T 324T to 326T 364T to 365T 404T to 444T
MOTOR HP AT 1200 RPM
Up to 5 71/2-20 25-30 40-50 60-100
MOTOR HP AT 1800 RPM
Dia. Width Up to 10 15-30 40-50 60-75 100-150
12-18 SW 140
DW 150
20-22 SW 160
DW 170
24-30 SW 210
DW 260
33-36 SW 330
DW 400
40-44 SW 390
DW 460
49 SW 410
DW 510
54 SW 430
DW 520
60 SW 490
DW 620
66 SW 530
DW 650
73 SW 580
DW 760
80 SW 680
DW 800
89 SW 730
DW 980
98 SW 770
DW 1070
108 SW 850
DW 1280

MSL - 1.1” to 1.5” Deflection Using A, B & C Springs

FAN WHEEL MOTOR FRAME SIZES Approx. Ship Wt. (lbs)
Up to 215T 254T to 286T 324T to 326T 364T to 365T 404T to 444T
MOTOR HP AT 1200 RPM
Up to 5 71/2-20 25-30 40-50 60-100
MOTOR HP AT 1800 RPM
Dia. Width Up to 10 15-30 40-50 60-75 100-150
12-18 SW 150
DW 160
20-22 SW 170
DW 180
24-30 SW 220
DW 270
33-36 SW 340
DW 410
40-44 SW 400
DW 470
49 SW 420
DW 520
54 SW 440
DW 530
60 SW 500
DW 630

MSL - 1.6” to 5” Deflection

FAN WHEEL DEFLECTION Approx Ship Wt. (lbs)
Dia. Width 0.75″-1.0″ 1.1″-2.0″ 2.1″-3.0″ 3.1″-4.0″ 4.1″-5.0″
12-27 SW 130
DW 170
30-36 SW 310
DW 430
40-49 SW 510
DW 690
54-66 SW 830
DW 1080
73 SW 880
DW 1170
81-89 SW 1870
DW 2460
98 SW 3240
DW 4030
108 SW 3660
DW 4940

MSL - 0.75” to 5.0” Deflection

FAN WHEEL Dia. Type of Drive DEFLECTION Approx Ship Wt. (lbs)
0.75″-1.0″ 1.1″-2.0″ 2.1″-3.0″ 3.1″-4.0″ 4.1″-5.0″
4-7 Direct 80
9-15 90
9-15 Belt 100
16-22 110
24-27 130
30-33 150
36 170

Submittal & Files

PRODUCT SUBMITTAL – (Contact us for more info)
2D CAD DETAILS – (Contact us for more info)
3D CAD DETAILS – (Contact us for more info)
MODEL STP FORMAT – (Contact us for more info)
REVIT 2012 RFA FORMAT – (Contact us for more info)

BULLETINS, DATA SHEETS & INFORMATION

BASES & RAILS SPECIFICATIONS
FAN & MOTOR BASES DATA SHEET
KSL BASE WEIGHTS
BOLTED MODULAR BMK/KSL BASES
APPLICATION BULLETIN
SEISMIC ROOFTOP SPRING CURB
SOUND SOLUTIONS & MDC-10 DATA SHEET

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