Product Overview
The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2013 Johnson Controls, Inc.
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1
Code No. LIT-1922135
Issued February 19, 2013
Description
Bulb Wells are used in conjunction with
Remote Bulb Temperature Controls where
bulb insertion into a vessel or container to
sense temperature is required. WZ Series
Wells are used with TE-6000 and TE-6300
sensors.
A variety of shapes, sizes, and materials are
available for a wide range of applications.
Refer to the appropriate temperature control
for the exact bulb well required.
Accessories
The Code No. FTG13A-600R packing nut
assembly is used in applications where the
temperature does not fall below -35°F (-37°C).
The maximum liquid pressure limit is
150 PSIG (1034 kPa). Use with Style 1, 3/8 in.
diameter bulb for direct immersion application.
A19s require models with support tube; A70s
and A72s do not need support tubes.
Selection Charts
WEL Series Bulb Wells
Code
Number
See
Figure
Dimension In. Pipe Thread In. Material Maximum
Temp °F
Maximum
Pressure
PSIG
Type of
Solder
Joint
Plating
A B C Inside
D
Outside
E
Connector Tube
WEL11A-601R
1
1. With phenolic bushing 0.093 in. slot
2 2-3/8 2-5/16 .299 – 1/2 Brass Copper 250 300 Soft –
WZ-1000-2
2
2. Includes thermal compound
1 5-1/4 1-1/4 .500 1/2 1/2 Stainless
steel
Stainless
steel
300 400 – –
WZ-1000-4 1 5-1/4 1-1/4 .500 1/2 1/2 Stainless
steel
Stainless
steel
600 400 – –
WZ-1000-5
2
2 2-3/8 2-5/16 .299 – 1/2 Malleable Brass 250 300 – –
WEL14A-600R
3
4
3. For 3/8 in. style 1 bulbs.
4. With phenolic bushing; 0.125 in. slot.
3 4-3/4 1-13/16 .444 – 1/2 Monel Monel 700 1000 TIG weld –
WEL14A-601R
3
4
3 7-9/16 1-13/16 .430 – 1/2 Brass Copper 250 300 Silver Brite-Dip
WEL14A-602R
3
4
3 4-15/16 1-13/16 .430 – 1/2 Brass Copper 250 300 Silver Brite-Dip
WEL14A-603R
3
4
3 5 13/16 1 13/16 .430 – 1/2 Brass Copper 250 300 Silver Brite-Dip
WEL16A-600R
1
2 2-3/8 1-5/16 .299 – 1/2 Brass Copper 250 300 Soft –
WEL16A-601R
4
2 2-13/16 1-13/16 .375 – 1/2 Brass Copper 250 300 Soft –
WEL17A-600R
5
5. For 11/16 in. diameter style 4 bulbs. Style 1 can be used, but is not fastened into well
1 10-7/16 3/4 .763 1/2 3/4 Malleable Copper 250 250 Silver Tin
WEL17A-601R
5
1 8-11/16 3/4 .763 1/2 3/4 Malleable Copper 250 250 Silver Tin
WEL17A-602R
5
1 10-7/16 3/4 .753 1/2 3/4 Malleable Steel 250 540 Silver Tin
WEL17A-604R
5
1 14-13/32 3/4 .763 1/2 3/4 Malleable Copper 250 250 Silver Tin
WEL18A-600R
5
1 3-1/2 3/4 .773 1/2 3/4 Malleable Steel 250 150 Silver Tin
WEL18A-602R
5
1 3-1/2 3/4 .773 1/2 3/4 Malleable Brass 250 150 Silver Tin
WEL Series Bulb Wells
FIG:Wel_2
FIG:W el_3
Bulb Wells
FIG:FTG13A_600R
1/2 in. N.P.T.
Adapter
Style 1
Bulb Support Tube
Packing
Nut
Interlocking
Retainer
Washers
FTG13A-600R
FIG:Wel_1
WEL Series Bulb Well
T-800 Wells
Code Number Description
T-800-1605 Brass well, 6-1/2 inch
T-800-1606 Stainless steel well, 5-1/4 inch
T-800-1618 Brass well, 9-1/2 inch
T-800-1620 Brass well, 9-1/2 inch