Thermowell

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Application

Thermowells are used to protect temperature measurement instrumentation from damage, corrosion and excessive pressure. Our products can be made of stainless steel, brass, hastelloy, monel, Inconel and so on. We manufacture threaded, flanged, socket weld thermowells, metal protection tubes, sample probes and test wells. They can be utilized with thermocouples, thermometers, resistance temperature detectors (RTDs) and other instrumentation devices.

WHM thermowells are designed and manufactured in compliance with the following standards, your custom designs are also accepted.

  1. ASME PTC 19.3 TW-2016 thermowells
  2. IEC 61520 (GB/T 19901) metal thermowells for thermometer sensors- functional dimensions

For assistance, please contact Shanghai Wan Hui Machinery through E-mail info@whmcn.com or call us at +86-21-6892 4569.

Thermowell_06
Thermowells

WHM Standard Features

WHM Standard Features （Imperial）

Shank Configuration

Shank Configuration
Shank Style Code
Straight ST
Tapered TP
Step Down SD
Limited Space LS

Threaded Thermowell

Threaded thermowell is machined from a single piece of solid bar stock.

Description Immersion Length
U		 Process Connection NPT
P		 Instrument Connection NPT
I		 Bore Dia.
d		 Shank Dia.
Q(V)
Size Range 1.5”
2”
3”
4”
5”
6”
7”
8”		 1/2”
3/4”
1”
1 1/4”		 1/4”
1/2”
3/4”
1”
1 1/4”		 0.260”
0.335”
0.385”
0.515”
0.718”		 1/2”
5/8”
3/4”
7/8”
1”

T=0(standard)
Your special designs can be customized.
Please contact us via E-mail info@whmcn.com

Flanged Thermowell

Flanged thermowell is machined from a single piece of solid bar stock welded to a flange.



Description Immersion Length
U		 Flanged Only Instrument Connection NPT
I		 Bore Dia.
d		 Shank Dia.
Q(V)
Size Range 1.5”
2”
3”
4”
5”
6”
7”
8”		 1” - 150#
1-1/2” - 150#
2” - 150#
1” - 300#
1-1/2” - 300#
2” - 300#
1” - 600#
1-1/2” ANSI 600#
2” ANSI 600#
1” ANSI 900/1500#
1-1/2” ANSI 900/1500#
2” ANSI 900/1500#		 1/4”
1/2”
3/4”
1”		 0.260”
0.335”
0.385”
0.515”
0.718”		 1/2”
5/8”
3/4”
7/8”

T=0(standard)
Your special designs can be customized.
Please contact us via E-mail info@whmcn.com.

Socket Weld Thermowell

Socket weld thermowell is constructed from a single piece of solid bar stock. It is used for field welding and permanent installation.


Description Immersion Length
U		 Socket Weld & Weld-in Instrument Connection NPT
I		 Bore Dia.
d		 Shank Dia.
Q(V)
Size Range 1.5”
2”
3”
4”
5”
6”
7”
8”		 3/4” pipe (1.050 O.D.)
1” pipe (1.315 O.D.)
1-1/4” pipe (1.660 O.D.)
1-1/2” pipe (1.900 O.D.)
1-1/2” Actual (1.500 O.D.)		 1/4”
1/2”
3/4”
1”
1-1/4”		 0.260”
0.335”
0.385”
0.515”
0.718”		 1/2”
5/8”
3/4”
7/8”
1”

T=0(standard)
Your special designs can be customized.
Please contact us via E-mail info@whmcn.com.

Protection Tube

Protection Tubes are constructed from metal and can be built with either threaded or flanged connection types.

 

Description Immersion Length
U		 Process Connection NPT
P		 Pipe O.D. Head Length H Instrument Connection NPT/NPSM
I		 Bore Dia.
d		 Shank Dia.
Q(V)
Size Range 2”
3”
6”
8”
10”
12”
15”
18”
21”
24”
27”
30”
32”
36”
38”
40”		 3/4NPT
1NPT
1-1/2NPT
Welded
1” ANSI150#
1 1/2” ANSI150#
2” ANSI150#
3” ANSI150#
4” ANSI150#
1” ANSI300#
1 1/2” ANSI300#
2” ANSI300#
3” ANSI300#
4” ANSI300#
1” ANSI600#
1 1/2” ANSI600#
2” ANSI600#
3” ANSI600#
4” ANSI600#		 1/4” S40
1/4” S80
1/4” S160
1/2” S40
1/2” S80
1/2” S160
3/4” S40
3/4” S80
3/4” S160
1” S40
1” S40
1” S80
1” S160		 2”
2.5”
3”
3.5”
4”
4.5”
5”
5.5”
6”
6.5”
7”
7.5”
8”
8.5”
9”
9.5”		 1/4”
1/2”
3/4”		 0.260”
0.385”		 1/2”
5/8”
3/4”
7/8”
1”
1 1/8”

Your special designs can be customized.
Please contact us via E-mail info@whmcn.com

Sample probe

Sample probes are machined from drilled bar stock with 45 degrees angled tip.

Description Immersion Length
U		 Process Connection NPT
P		 Instrument Connection NPT
I		 Bore Dia.
d		 Shank Dia.
Q(V)
Size Range 1.5”
2”
3”
4”
5”
6”
7”
8”		 1/2”
3/4”
1”
1-1/4”		 1/4”
1/2”
3/4”
1”
1-1/4”		 0.260”
0.335”
0.385”
0.515”
0.718”		 1/2”
5/8”
3/4”
7/8”
1”

T=0(standard)
Your special designs can be customized.
Please contact us via E-mail info@whmcn.com

Test Well

Plug and chains in brass (BP) or stainless (SP) steel are available for internal threaded thermowells.

Description Immersion Length
U		 Process Connection NPT
P		 Instrument Connection NPT
I		 Bore Dia.
d		 Shank Dia.
Q(V)
Size Range 1.5”
2”
3”
4”
5”
6”
7”
8”		 1/2”
3/4”
1”
1-1/4”		 1/4”
1/2”
3/4”
1”
1-1/4”		 0.260”
0.335”
0.385”
0.515”
0.718”		 1/2”
5/8”
3/4”
7/8”
1”

T=0(standard)
Your special designs can be customized.
Please contact us via E-mail info@whmcn.com

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