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Bayonet Fitting Thermocouples - Stainless Steel Cable
BT / BTC / BTA
Features
Service Temperature to 480°C (900°F) Except for Type T Thermocouples
Wide Variety of Immersion Lengths, Styles and Mounting Arrangements Available
Fast Delivery on Standard Configurations
304 Stainless Steel Construction
Flexible 7.0 mm (0.275") Stainless Steel Cable (1.5 m (5') Standard)
High-Temperature Designs Available
Glass Braid Insulated 20 Gage Stranded Thermocouple Wire

Heavy Duty Extruder Probes Bayonet Type
Dimensions*
Type
Cold End Termination
Model No.
Straight

A = 57.2 mm (2.25")
or 89 mm (3.50")
B = 1.5 m (60")
J
1
BT-000-J-( )-60-1
J
2
BT-000-J-( )-60-2
K
1
BT-000-K-( )-60-1
K
2
BT-000-K-( )-60-2
T
1
BT-000-T-( )-60-1
T
2
BT-000-T-( )-60-2
E
1
BT-000-E-( )-60-1
E
2
BT-000-E-( )-60-2
 

A = 57.2 mm (2.25")
or 89 mm (3.50")
B = 1.5 m (60")
J
1
BT-090-J-( )-60-1
J
2
BT-090-J-( )-60-2
K
1
BT-090-K-( )-60-1
K
2
BT-090-K-( )-60-2
T
1
BT-090-T-( )-60-1
T
2
BT-090-T-( )-60-2
E
1
BT-090-E-( )-60-1
E
2
BT-090-E-( )-60-2
* Note: Insert 2-1/4 or 3-1/2: Standard “A” Dimension in space ( ). Longer lengths available at $ 1.00/foot. “B” standard dimensions is 60". For longer lengths, change “60” to desired length, and add $2.25 per foot to price.

Pipe Clamp Adaptors for Bayonet-Type Thermocouples

†Note: Choose "A" thermocouple dimension of 57 mm (2.25") for all bayonet type thermocouples used with pipe clamp adaptors.

To measure temperature of pipes without drilling. Easily installed and removed.

Model No.
For Pipe Diameter (inches)
Model No.
For Pipe Diameter (inches)
BTC-1
1/2 to 7/8
BTC-4
2-1/4 to 3-5/16
BTC-2
7/8 to 1-1/2
BTC-5
3-5/16 to 4-1/4
BTC-3
1-5/16 to 2-1/4
BTC-6
4-5/16 to 5-1/4
Material is Stainless Steel

Adaptors for Bayonet-Type Thermocouples

Model No.
Length (inches)
Thread Size
Model No.
Length (inches)
Thread Size
BTA-1
7/8
1/8-27 NPT
BTA-4
3/8-24
2
BTA-2
7/8
3/8-24
BTA-5
1/8-27 NPT
2-1/2
BTA-3
1-3/8
1/8-27 NPT
BTA-6
3/8-24
3
Adaptor material is stainless steel


Drilling Selection Table for Spring Loaded Bayonet Type Thermocouples
Hole Depth "C" Inches*
Probe length "A" Inches
7/8 Long Adaptor
1-3/8" Long Adaptor
2-1/2" Long Adaptor
1/4 to 1/2
1-5/8
2
3-1/8
1/2 to 1
2
2-1/2
3-5/8
1 to 1-1/2
2-1/2
3
4-1/8
1-1/2 to 2
3
3-1/2
4-5/8
2 to 2-1/2
3-1/2
4
5-1/8
2-1/2 to 3
4
4-1/2
5-5/8
3 to 3-1/2
4-1/2
5
6-1/8
3-1/2 to 4
5
5-1/2
6-5/8
4 to 4-1/2
5-1/2
6
7-1/8
4-1/2 to 5
6
6-1/2
7-5/8
*For deeper holes than those listed, add 1/2 inch to probe dimension “A” for each 1/2 inch of hole depth dimension “C”.
Note: Thermocouples supplied without adaptors.



To Order (Specify Model Number, see variations below in partnumber builder table)    
 Part Number   Availability   Price    Description    Qty.
 BT-000-J-2 1/4-60-1 in-stock    $28.00     J Type Thermocouple, 2-1/4" Straight Probe, 60" BX Cable, Spade Lug Termination  
 BT-000-J-3 1/2-60-1 in-stock    $28.00     J Type Thermocouple, 3-1/2" Straight Probe, 60" BX Cable, Spade Lug Termination  
 BT-090-K-3 1/2-60-2 in-stock    $32.00     K Type, 3-1/2" 90 Degree Angle Probe, 60" BX Cable, OST Male Connector Termination  
 BT-090-K-2 1/4-60-2 in-stock    $32.00     K Type, 2-1/4" 90 Degree Angle Probe, 60" BX Cable, OST Male Connector Termination  
 BT-090-K-2 1/4-60-1 in-stock    $29.00     K Type, 2-1/4" 90 Degree Angle Probe, 60" BX Cable, Spade Lug Termination  
 Bayonet Pipe Clamp Adaptors
 BTC-1 in-stock    $11.00     Bayonet Pipe Clamp Adaptor, Pipe Diameter: 1/2 to 7/8"  
 BTC-2 in-stock    $11.00     Bayonet Pipe Clamp Adaptor, Pipe Diameter: 7/8 to 1-1/2"  
 BTC-3 in-stock    $11.00     Bayonet Pipe Clamp Adaptor, Pipe Diameter: 1-5/16 to 2-1/4"  
 BTC-4 in-stock    $11.00     Bayonet Pipe Clamp Adaptor, Pipe Diameter: 2-1/4 to 3-5/16"  
 BTC-5 in-stock    $11.00     Bayonet Pipe Clamp Adaptor, Pipe Diameter: 3-5/16" to 4-1/4"  
 BTC-6 in-stock    $11.00     Bayonet Pipe Clamp Adaptor, Pipe Diameter: 4-5/16 to 5-1/4"  
 Threaded Bayonet Adaptors
 BTA-1 in-stock    $6.00     Threaded Bayonet Adaptor, Thread Size: 1/8-27 NPT, Length: 7/8"  
 BTA-2 in-stock    $6.00     Threaded Bayonet Adaptor, Thread Size: 3/8-24, Length: 7/8"  
 BTA-3 in-stock    $7.00     Threaded Bayonet Adaptor, Thread Size: 1/8-27 NPT, Length: 1-3/8"  
 BTA-4 in-stock    $7.00     Threaded Bayonet Adaptor, Thread Size: 3/8-24, Length: 1-3/8"  
 BTA-5 in-stock    $8.00     Threaded Bayonet Adaptor, Thread Size: 1/8-27 NPT, Length: 2-1/2"  
 BTA-6 in-stock    $8.00     Threaded Bayonet Adaptor, Thread Size: 3/8-24, Length: 2-1/2"  
 
All dollar amounts on this site are shown in US currency.

 Part Number Builder
(1) (2) (3) (4)
BT- - - -60-
Option Descriptions
(1) Straight or 90 Degree Angle Probe
  Select
000 for Straight Probe
090 for 90 Degree Angle Probe
(2) Thermocouple Type
  Select
J for J (Iron-Constantan)
K for K CHROMEGA®-ALOMEGA®
T for T (Copper-Constantan)
E for E (CHROMEGA®Constantan)
(3) Probe Length “A” Dimension
  Select
2 1/4 for 2-1/4 Inches “A” Dimension
3 1/2 for 3-1/2 Inches “A” Dimension
(4) Termination Style
  Select
1 for Spade Lugs
2 for OST Male Connector
 NOTE: All combinations may not be valid, check spec sheet for valid part numbers.


   
Keywords:Bayonet Fitting Style Probes - Stainless Steel Cable

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