DATA SHEET T-WELLS
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_


SX
LX
HX
TX
WP
FM
GM

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TYPE AND DESIGNATOR FROM TABLES
Standard threaded well; no lag extension
Standard threaded well; with lag extension
Heavy Duty – no lag
Heavy Duty – with lag
Socket Weld
Flanged
Flanged Heavy Duty

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DESIGNATORS
X PROCESS THREAD
1

1/2" NPT (TYPE L ONLY, T = 0.5" MIN.)

2

3/4" NPT

 

 
3

1" NPT

 

 

P PIPE SIZE M FLANGE MATERIAL

2

3/4"

(SEE THERMOWELL MATERIAL)

3

1"

 
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_  
   STEM (“A”) – LENGTH OF THERMOWELL BORE IN INCHES _
_  
_     INSERTION (“U”) – LENGTH IN INCHES _
_  
_     LAG (“T”) – LENGTH IN INCHES _
_  
_     THERMOWELL MATERIAL _

A
B
C
D
Z

Carbon Steel C1018
SS 304
SS 316
SS 316L
Chrome/Moly (F22)

E
F
G
H

Hastelloy C
Inconel 600
SS 446
Mondel

J
K
L
M

Brass
Hastelloy B
Titanium
321 SS

N
P
Q
R

347SS
317SS
2205SS
321 HSS
_ _
_     FLANGE FOR TYPE F OR G (face type and rating in Lbs., ie: R300) _
R
RTJ
F		 Raised Face        (150Lbs., 300Lbs., 600Lbs.
Ring Type Joint     900Lbs., 1500Lbs.)
Flat Face
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_     FLANGE SIZE FOR TYPE F OR G: 1", 1.5", 2", 2.5", 3", 4" _
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_ _
_ _
FC
_
_
–
6
_
_
–
4
_
_
–
0
_
_
–
C
_
_
–
R300
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_
–
1.5
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–   Typical Write-Up
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CONNECTION HEADS AND COMPRESSION FITTINGS
 
STANDARD CAST
ALUMINUM HEAD
P/N 51590
1/2 NPT Conduit
Style A - 125°C
Style B - 260°C		 CAST IRON HEAD

P/N 51840
3/4 NPT Conduit
Style C - 260°C		 LARGE CAST
ALUMINUM HEAD
P/N 52298
3/4 NPT Conduit
Style E - 260°C		 DIN B CAST
ALUMINUM HEAD
P/N 55261
1/2 NPT Conduit
Style K - 100°C
 
 
EXPLOSION PROOF
CAST ALUMINUM HEAD
P/N 41333
1/2 NPT Conduit
Style G - 125°C
Style H - 260°C 		HINGED CAST
ALUMINUM HEAD
P/N 54681
1/2 NPT Conduit
Style J - 125°C
 Adjustable Compression Fitting
   Part
   Number
 Process
Mounting
Material		 Sensor Sheath
Diameter
  51841-1 1/8 NPT Stainless Steel 0.125
  51841-2 1/4 NPT Stainless Steel 0.125
  51841-3 1/4 NPT Stainless Steel 0.25
  51841-4 1/2 NPT Stainless Steel 0.25
 
_All Connection Heads come with 1/2" NPT sensor connections.
All RdF connection heads with gasket meet NEMA 4 for dust and moisture resistance. RdF's proprietary heads with threaded-insert molded terminal blocks, “A”, “B”, “G” and “H”, are the world's smallest full performance aluminum heads. All terminal boards accomodate at least 4 terminations with 6 or 8 optional as tabulated below.
_
  P/N 51590–1
  P/N 51590–2		  STANDARD CAST ALUMINUM HEAD
 4 two–screw straps.
  Optional: up to 8 top–screw thread–in posts 		 1/2 NPT Conduit  Style A - 125°C
 Style B - 260°C
  P/N 41333–1
  P/N 41333–2		  EXPLOSION PROOF CAST ALUMINUM HEAD
 4 two–screw straps.
  Optional: up to 8 top–screw thread–in posts 		 1/2 NPT Conduit  Style G - 125°C
 Style H - 260°C
  P/N 51840–1  CAST IRON HEAD
 4 two–screw straps; Optional: 6 of same 		 3/4 NPT Conduit  Style C - 260°C
  P/N 52298–1  LARGE CAST ALUMINUM HEAD
 4 two–screw straps; Optional: 6 of same		  3/4 NPT Conduit  Style E - 260°C
  P/N 54681  HINGED CAST ALUMINUM HEAD
 4 two–screw straps		  3/4 NPT Conduit  Style J - 125°C
  P/N 55261  DIN B CAST ALUMINUM HEAD
 6 two–screw posts		  1/2 NPT Conduit  Style K - 100°C
NOTE: OTHER HEAD MATERIALS AVAILABLE (Polypropylene, Stainless Steel). CONSULT FACTORY
 
RdF Corporation • 23 Elm Ave., Hudson, NH 03051  
800.445.8367 • 603.882.5195 • fax 603.882.6925 • www.rdfcorp.com