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Series 40&45 Tapered Shank with .385" Bore 
for 3/8" Diameter Elements
Heavy Duty Threaded

Series 40 Tapered Shank | Series 45 Tapered Shank-Lagging Extension Type 

Series 40 Tapered Shank
Heavy Duty Threaded

How To Order
Complete the Part Number by filling above the line
( __ ) with the number designating the material.
    1 = Steel
    2 = Brass
    3 = 316 Stainless Steel
    4 = 304 Stainless Steel
    5 = Monel

Please contact Tempco for further assistance.
Toll Free (888) 268-6396

Series 40 Standard Sizes

Part Number External
Thread
"P"
Stem
Length
"A"
(in)
Insertion
Length
"U"
(in)
Shank
Diameter
"B"
(in)
Price
US Dollars
TWL4021__ 3/4"
NPT
4 2-1/2 7/8  
TWL4022__ 6 4-1/2 7/8  
TWL4023__ 9 7-1/2 7/8  
TWL4024__ 12 10-1/2 7/8  
TWL4025__ 15 13-1/2 7/8  
TWL4026__ 18 16-1/2 7/8  
TWL4028__ 24 22-1/2 7/8  
TWL4031__ 1"
NPT
4 2-1/2 11/16  
TWL4032__ 6 4-1/2 11/16  
TWL4033__ 9 7-1/2 11/16  
TWL4034__ 12 10-1/2 11/16  
TWL4035__ 15 13-1/2 11/16  
TWL4036__ 18 16-1/2 11/16  
TWL4038__ 24 22-1/2 11/16  

 


Series 45 Tapered Shank
Heavy Duty Threaded

How To Order
Complete the Part Number by filling above the line
( __ ) with the number designating the material.
    1 = Steel
    2 = Brass
    3 = 316 Stainless Steel
    4 = 304 Stainless Steel
    5 = Monel

Please contact Tempco for further assistance.
Toll Free (888) 268-6396

Series 45 Standard Sizes

Part Number External
Thread
"P"
Lag.
Exten.
"T"
(in)
Stem
Length
"A"
(in)
Insert
Length
"U"
(in)
Shank
Diameter
"B"
(in)
Price
US Dollars
TWL4521__ 3/4"
NPT
2 6 2-1/2 7/8  
TWL4522__ 3 9 4-1/2 7/8  
TWL4523__ 3 12 7-1/2 7/8  
TWL4524__ 3 15 10-1/2 7/8  
TWL4525__ 3 18 13-1/2 7/8  
TWL4527__ 3 24 19-1/2 7/8  
TWL4531__ 1"
NPT
2 6 2-1/2 11/16  
TWL4532__ 3 9 4-1/2 11/16  
TWL4533__ 3 12 7-1/2 11/16  
TWL4534__ 3 15 10-1/2 11/16  
TWL4545__ 3 18 13-1/2 11/16  
TWL4537__ 3 24 19-1/2 11/16  

 

Maximum Fluid Velocity Feet per Second
(See Velocity Ratings)

Well Type Material Insertion Length -- "U" (in)
2-1/2 4-1/2 7-1/2 10-1/2 13-1/2 16-1/2 19-1/2 22-1/2
3/4"
Series
40 and 45
Brass 276 (127) 124 (79) 44.0 22.0 13.0 8.0 6.0 4.0
Carbon Steel 352 (228) 191 (114) 68.9 35.0 21.0 14.0 10.0 7.5
A.I.S.I. 304 & 316 415 (299) 203 (154) 73.2 37.3 22.5 15.0 11.0 8.0
Monel 340 (255) 172 (134) 62.0 31.0 19.0 12.8 8.0 6.0
1"
Series
40 and 45
Brass 321 (150) 129 (83.5) 46.8 23.6 14.5 9.6 6.9 5.1
Carbon Steel 410 (270) 249 (150) 90.3 45.6 27.8 18.5 13.2 9.8
A.I.S.I. 304 & 316 483 (350) 272 (208) 97.3 49.7 30.4 20.3 14.5 10.7
Monel 396 (306) 214 (167) 77.5 39.2 23.8 16.0 10.3 7.7
Where single values appear in table, thermowell may be considered safe for water, steam, air or gas. The values in parenthesis in the shorter insertion lengths represent safe values for water flow, taking into consideration the velocity pressure effect of water flowing at higher velocities.

 

Pressure -- Temperature Rating (lbs per square inch)

Material

Temperature

70ºF

200ºF

400ºF

600ºF

800ºF

1000ºF

1200ºF

Brass

5000

4222

1000

--

--

--

--

Carbon Steel

5200

5000

4800

4600

3500

1500

--

A.I.S.I. 304

7000

6200

5600

5400

5200

4500

1650

A.I.S.I. 316

7000

7000

6400

6200

6100

5100

2500

Monel

6500

6000

5400

5300

5200

1500

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