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Environmental & Combustion Controls
Well Assemblies
A family of metal thermowells allowing temperature sensing in pressurized vessels. Various insertion and spud diameters and lengths.
Compare Select and Compare the Product Models below.  Limited to five.  Some groupings may not be comparable.
  
121371A
Copper. Bulb size: 3/8 in. x 3 in. (10 mm x 76 mm). Well size: 3 in. (76 mm) insertion, 1 1/2 in. NPT. Includes mounting clamp.
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121371AA
Well clamp assembly with clamp capillary 21371 (1) screws 804644 and nuts 60156
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121371B
Copper. Bulb size: 3/8 in. x 3 in. (10 mm x 76 mm). Well size:3 in. (76 mm) insertion, 1 1/2 in. (38 mm) insulation, 3/4 in. NPT. Includes mounting clamp.
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121371E
Stainless steel. Bulb size: 3/8 in. x 3 in. (10 mm x 76 mm). Well size: 3 in. (76 mm) insertion, 1 1/2 in. (38 mm) insulation, 1/2 in. (13 mm) NPT. Includes mounting clamp.
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121371L
Copper. Bulb size: 3/8 in. x 3 in. (10 mm x 76 mm). Well size:3 in. (76 mm) insertion, 3 in. (76 mm) insulation, 1/2 in. NPT. Includes mounting clamp.
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121371M
Copper. Bulb size: 3/8 in. x 3 in. (10 mm x 76 mm). Well size:3 in. (76 mm) insertion, 1 1/2 in. (38 mm) insulation, 3/4 in. NPT. Includes mounting clamp.
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121371P
Copper Well Assembly with 1 1/2 insulation depth and 3 in. insertion length and 1/2 in. spud thread
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123869A
Copper. Bulb size: 3/8 in. x 3 in. (10 mm x 76 mm). Well size: 3 in. (76 mm) insertion, 1 1/2 in. (38 mm) insulation, 1/2 in. NPT.
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123870A
Copper. Bulb size: 3/8 in. x 3 in. (10 mm x 76 mm). Well size: 3 in. (76 mm) insertion, 1 1/2 in. (38 mm) insulation, 3/4 in. NPT.
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123871A
Copper. Bulb size: 3/8 in. x 3 in. (10 mm x 76 mm). Well size: 3 in. (76 mm) insertion, 3 in. (76 mm) insulation, 3/4 in. NPT.
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123872A
Copper. Bulb size: 3/8 in. x 3 in. (10 mm x 76 mm). Well size: 3 in. (76 mm) insertion, 3 in. (76 mm) insulation, 1/2 in. NPT
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123872D/0019
1/2 inch NPT well assembly
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124299AA
Copper. Bulb size: 3/8 in. (10 mm). Well size: 3 in. (76 mm) insertion, 1 1/2 in. (38 mm) insulation, 3/4 in. NPT. Includes set screw with spud for armored capillary with plug.
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138134B/0021
Bulb size: 3/8 in. x 3 in. (10 mm x 76 mm). Well size:3 in. (76 mm) insertion, 3/4 in. NPT
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Compare Select and Compare the Product Models above.  Limited to five.  Some groupings may not be comparable.

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