BIMETAL DIAL THERMOMETERS

bimetal dial thermomter

Weiss offers a complete line of Commercial Bimetal Thermometers in 2", 3" and 5" dial sizes. All versions are hermetically sealed and silicone dampened for optimum performance in most industrial applications. A recalibration feature is standard on the Vari-angle types. Other 3" and 5" dial forms are available with or without a reset feature for a wider customer choice and savings.


For more information please see our
on-line Bimetal catalog.

CASE: The entire case assembly is of Type 304 Stainless Steel. To insure a moisture proof unit, the heavy glass face is securely gasketed with the case and bezel assembly, hermetically sealed.

STEM ASSEMBLY:The stem and fixed thread connection is fabricated of stain-less steel. All welded construction insures complete corrosion resistance. Model BM, RBM and VBM stem diameter is 1/4" and for 2" dials the fixed thread is 1/4" NPT, 3" and 5" dials are 1/2" NPT.
MODEL 2BM - 2" Angle
CAT NO. Stem Lenght ¹ NPT
2BM25 21/2" 1/4"
2BM4 4" 1/4"
2BM6 6" 1/4"
2BM9 9" 1/4"
2BM12 12" 1/4"
MODEL 3BM, 3" Angle - 3BMS, 3" Straight MODEL 5BM, 5" Angle - 5BMS, 5" Straight
CAT NO. Stem Lenght ¹ NPT
3BM25 3BMS25
3BM4 3BMS4
3BM6 3BMS6
3BM9 3BMS9
3BM12 3BMS12
21/2" 1/2"
4" 1/2"
6" 1/2"
9" 1/2"
12" 1/2"
CAT NO. Stem Lenght ¹ NPT
5BM25 5BMS25
5BM4 5BMS4
5BM6 5BMS6
5BM9 5BMS9
5BM12 5BMS12
21/2" 1/2"
4" 1/2"
6" 1/2"
9" 1/2"
12" 1/2"

MODEL 3RBM,
3" Angle - 3RBMS, 3" Straight
CAT NO. Stem Lenght ¹ NPT
3RBM25 3RBMS25
3RBM4 3RBMS4
3RBM6 3RBMS6
3RBM9 3RBMS9
3RBM12 3RBMS12
21/2" 1/2"
4" 1/2"
6" 1/2"
9" 1/2"
12" 1/2"
Series RBM with
Recalibrator
MODEL 5RBM,
5" Angle - 5RBMS, 5" Straight
CAT NO. Stem Lenght ¹ NPT
5RBM25 5RBMS25
5RBM4 5RBMS4
5RBM6 5RBMS6
5RBM9 5RBMS9
5RBM12 5RBMS12
21/2" 1/2"
4" 1/2"
6" 1/2"
9" 1/2"
12" 1/2"

MODEL 3VBM, 3" Vari-angle
CAT NO. Stem Lenght ¹ NPT
3VM25 21/2" 1/2"
3VBM4 4" 1/2"
3VBM6 6" 1/2"
3VBM9 9" 1/2"
3VBM12 12" 1/2"
Bimetal dial thermometer
MODEL 5VBM, 5" Vari-angle
CAT NO. Stem Lenght ¹ NPT
5VM25 21/2" 1/2"
5VBM4 4" 1/2"
5VBM6 6" 1/2"
5VBM9 9" 1/2"
5VBM12 12" 1/2"

¹Includes thread. Longer stem lenghts available.
NOTE:When ordering Silicone Filled Bimetals add Prefix SF to appropriate Catalog No. Ex: SF5RBM25

FAHRENHEIT FIG. INTER. SCALE DIV.
CELSIUS FIG. INTER. SCALE DIV.
DUAL SCALE - F&C
-80/0/120 20° 2°
-20/0/120 20° 2°
²30/130 10° 1°
0/200 20° 2°
0/250 20° 2°
50/300 20° 2°
50/400 50° 5°
50/550 50° 5°
¹100/800 100° 10°
¹ ³200/1000 100° 10°
-50/0/50 10° 1°
²0/50 5° 1/2°
0/100 10° 1°
0/150 10° 1°
0/200 20° 2°
0/300 50° 2°
¹0/450 50° 5°
¹ ³100/550 50° 5°
-80/0/120F -60/0/50C
-20/0/120F -30/0/50C
²30/130F 0-55C
0/200F -15/0/90C
0/250F -20/0/120C
50/300F 10/150C
50/400F 10/200C
50/550F 10/260C
¹100/800F 40/425C
¹ ³200/1000F 100/540C
¹ Minimum stem length for these ranges is 4". ² Minimum stem length is 4" Straight and Vari-angle Form.
³ Satisfactory for continous service up to 800°F of 425°C. Can be used for intermittent service from 800-1000°F or 425-500°C.

SEPARABLE SOCKETS FOR 3" AND 5" ONLY
EXT TH'D CAT. NO. STEM LGTH. INSERT LGTH.  
B25 21/2 1
B35 4 21/2
3/4" NPT BR6 6 41/2
BR9 9 71/2
BR12 12 101/2
EXT TH'D CAT. NO. STEM LGTH. INSERT LGTH. LAG EXT.
BN6 6 21/2 2
3/4 NPT BN9 9 41/2 3
BN12 12 71/2 3
DUCT MOUNTING FLANGES
CAT. NO. INSERTION
BF3 STANDARD
BF3-2 EXTENSION NECK