0.445" Bore Dia Threaded Step Down Thermowells

Threaded thermowells have a bore diameter of 0.445" with a step down shank and are ideal industrial glass thermometers. Click here to see more.

$289.65

Calibration Options

No Calibration

Required Calibration with Product + $85.00

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Data Sheet (PDF)

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0.445" Bore Dia Threaded Step Down Thermowells

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Description

Application:
Fits liquid-in-glass thermometers made to S.A.M.A. standards. Tapered bore is made 0.008' 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.

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.

Maximum Fluid Velocity Chart - feet per second

Well Type	Material	Insertion Length — “U”
Well Type	Material	2 9/16	5 1/16	8 1/16	11 1/16	14 1/16	17 1/16	20 1/16	231/16
3/4'-445S and 3/4'-445L	Brass	259 (52.3)	142 (26.4)	55.8 (16.6)	29.8 (12.1)	18.4 (9.5)	12.5 (7.8)	9.0 (6.7)	6.8
	Carbon Steel	352 (94.6)	198 (48.0)	77.5 (30.1)	41.4 (22.0)	27.8 (17.3)	17.3 (14.2)	12.5 (12.1)	9.5
	A.I.S.I. 304 & 316	382 (131)	206 (66.3)	80.9 (41.7)	43.2 (30.2)	26.6 (24.0)	18.1	13.1	9.9
	Monel	277 (105)	179 (53.1)	70.3 (33.4)	37.5 (24.3)	23.2 (19.1)	15.7	11.3	8.5

1'-445S and 1'-445L	Brass	259 (76)	156 (38.5)	61.4 (24.2)	32.8 (17.7)	20.2 (13.9)	13.7 (11.4)	9.9	7.5
	Carbon Steel	352 (137)	215 (69.4)	34.2 (43.6)	45.0 (31.9)	27.7 (25)	18.9	13.6	10.3
	A.I.S.I. 304&316	382 (190)	224 (96.1)	87.8 (60.4)	46.9 (44.1)	28.9	19.7	14.2	10.8
	Monel	277 (152)	196 (77.1)	77.2 (48.5)	41.4 (35.4)	25.4	17.2	12.4	9.4