Standard Threaded Thermowell for Industrial Glass Thermometers

SERIES 445S

See All Models Below

Description

Application:
Fits liquid-in-glass thermometers made to S.A.M.A. standards. Tapered bore is made .008 in. oversize to eliminate possibility of thermometer bulb expanding into the well, thus preventing removal.

Connection Size:
3/4" NPT and 1" NPT are standard. Other thread sizes are available upon request.

Protective Coatings for Thermowells:
• Resist Corrosion
• For Chemical Baths
• Color-Coded Sensors for Process Control
• Available in PFA, Epoxy and other materials. Consult Sales Department for complete information.

Materials:
Carbon Steel (C-1018), Brass (ASTM B-16), A.I.S.I. 304, A.I.S.I. 316, Monel. Many other materials available upon request.

Additional Designs:
Other designs of wells to fit this class of thermometer are available. These include socket weld, heavy duty and flanged types.

Series 445S—General Use
All dimensions in inches.

External Thread P	Model No.	Nominal Bulb Lgth.	Bulb Lgth. A	Insert. Lgth. U	Shank Dia. Q
3/4" NPT	3/4-445S-U 3 1/2 -U 6 -U 9 -U12 -U18 -U24	3 1/2 6 9 12 18 24	3 5/8 6 1/8 9 1/8 12 1/8 18 1/8 24 1/8	2 9/16 5 1/16 8 1/16 11 1/16 17 1/16 23 1/16	-- 7/8 7/8 7/8 7/8 7/8
1" NPT	1-445S-U 3 1/2 -U 6 -U 9 -U12 -U18 -U24	3 1/2 6 9 12 18 24	3 5/8 6 1/8 9 1/8 12 1/8 18 1/8 24 1/8	2 9/16 5 1/16 8 1/16 11 1/16 17 1/16 23 1/16	-- 1 1 1 1 1

Pressure-Temperature rating–lb per sq. inch

Well Type	Material	Temperature — °F
Well Type	Material	70°	200°	400°	600°	800°	1000°
3/4"-445S and 3/4"-445L (See Note)	Brass	640	575	100	–	–	–
	Carbon Steel	720	690	660	630	480	210
	A.I.S.I. 304	940	850	770	740	720	625
	A.I.S.I. 316	940	940	875	850	840	700
	Monel	900	825	740	730	710	210
1"-445S and 1"-445L (See Note)	Brass	1470	1320	230	—	—	—
	Carbon Steel	1650	1590	1520	1450	1100	480
	A.I.S.I.-304	2150	1950	1770	1710	1670	1430
	A.I.S.I.-316	2150	2150	2010	1960	1920	1610
	Monel	2070	1900	1700	1690	1640	480

Note: Wells with 2 9/16" insertion length have three times the pressure ratings shown.