Print Back
The length between the center of the two bolts is referred to as the center line.  The distance between the center of the tank holes must be within 1/32” of the center line measurement.
B3540-2 Category
1 2 3 

Item #

Centerline

Mounting

Feature

Max Pressure

Max Temperature

Seals

Body Material

B3540-21100BN1W N/A 11" N/A 1/4" Male NPT Adapters N/A Dial Thermometer N/A 175 PSI N/A 225° N/A Buna-N N/A Aluminum
B3540-21100BN2W N/A 11" N/A 3/8" Male NPT Adapters N/A Dial Thermometer N/A 175 PSI N/A 225° N/A Buna-N N/A Aluminum
B3540-21100BN3W N/A 11" N/A 1/2" Male NPT Adapters N/A Dial Thermometer N/A 175 PSI N/A 225° N/A Buna-N N/A Aluminum
B3540-21100BN4W N/A 11" N/A 3/4" Male NPT Adapters N/A Dial Thermometer N/A 175 PSI N/A 225° N/A Buna-N N/A Aluminum
B3540-21200BA1W N/A 12" N/A 1/2"-20 N/A Dial Thermometer N/A 175 PSI N/A 225° N/A Buna-N N/A Aluminum
B3540-21200BB1W N/A 12" N/A 1/2"-20 with Nuts N/A Dial Thermometer N/A 175 PSI N/A 225° N/A Buna-N N/A Aluminum
B3540-21200BN1W N/A 12" N/A 1/4" Male NPT Adapters N/A Dial Thermometer N/A 175 PSI N/A 225° N/A Buna-N N/A Aluminum
B3540-21200BN2W N/A 12" N/A 3/8" Male NPT Adapters N/A Dial Thermometer N/A 175 PSI N/A 225° N/A Buna-N N/A Aluminum
B3540-21200BN3W N/A 12" N/A 1/2" Male NPT Adapters N/A Dial Thermometer N/A 175 PSI N/A 225° N/A Buna-N N/A Aluminum
B3540-21200BN4W N/A 12" N/A 3/4" Male NPT Adapters N/A Dial Thermometer N/A 175 PSI N/A 225° N/A Buna-N N/A Aluminum
1 2 3