Omega Products 1-385L-U101-2-BRASS User Manual

Series 385L S

WRENCH

ALLOWANCE

LAGGING

EXTENSION

T

HREAD

U INSERTION LENGTH

±

0.002

0.385 BORE

A STEM LENGTH

P NPT

NPSM

†

W

RENCH

ALLOWANCE

ALLOWANCE

4

/

3

1

T

64

/

49

DIA.

4

/

1

1

/

2

Application:

Standard length,

3

⁄8" stem, bimetal thermometers.

tandard Threaded Well for

#14-gage thermocouple elements. Armored liquid-in­glass test thermometers. Other temperature-sensing

lements having 0.377" maximum diameter.

e

Connection Size:

3

PT and 1 NPT are standard. Other thread sizes are

⁄4 N

available upon request.

Series 385L—Lagging Extension Type

Dimensions: inches

3

Diameter Elements

⁄8"

aterials:

M

Brass (ASTM B-16); Carbon Steel (C-1018); Stainless
Steel A.I.S.I. 304 & A.I.S.I. 316; Monel. Wells are also
available in special materials; prices on request.

Cap and Chain Options:

For Brass cap, add $4 to price and add suffix “-CC (Brass)”
to the end of the model number.

or 304SS cap, add $7 to price and add suffix “-CC (304SS)”

F
to the end of the model number.

Me

t

r

i

c

Mo

d

e

l

A

v

S

e

e

B

-

3

7

†

NPSM internal pipe thread

s

a

i

l

a

b

l

e

!

P

a

g

e

s

a

n

d

B

-

3

8

will accept both NPT and
NPS male threads.

MOST POPULAR MODELS HIGHLIGHTED!

Shown close
to actual size.

To Order

External

(Specify Model Number)

Materials and Prices

Lag Stem Insert

Thread Stainless Steel Carbon Ext Lgth Lgth

P Model Number 304 316 Steel Brass TAU

3

⁄4 NPT 3/4-385L-U21/2-(*) $32.50 $44.00 $27.00 $27.00 262

1 NPT 1-385L-U21/2-(

Specify material type “304SS” for 304 Stainless Steel, “316SS” for 316 Stainless Steel, “CS” for Carbon Steel or

*

“BRASS” for brass. PFA coating available, see page B-16.
Ordering Example: 3/4-385L-U71/2-304SS, 304 stainless steel thermowell with

0.385” internal diameter, 3" Lagging Extension, 7

For Assistance in Choosing Head and Well Assemblies, See guide on page B-5. These wells are compatible
with OMEGA
Thermometers (page E-11).

3/4-385L-U41/2-(
3/4-385L-U71/2-(
3/4-385L-U101/2-(
3/4-385L-U131/2-(

3/4-385L-U191/2-(

1-385L-U41/2-(
1-385L-U71/2-(
1-385L-U101/2-(
1-385L-U131/2-(
1-385L-U191/2-(

®

NB1, NB2 (page B-8); PR-12, PR-14, and NPT-style probes (page C-95), as well as DialTemp™

) 48.00 64.50 41.50 41.50 394

*

) 59.50 79.50 54.00 54.00 3 12 71⁄2

*

) 84.50 113.50 69.50 69.50 3 15 101⁄2

*

) 101.00 135.50 83.50 83.50 3 18 131⁄2

*

) 169.50 201.00 140.00 140.00 3 24 191⁄2

*

) $45.00 $60.00 $35.00 $35.00 262

*

) 59.50 79.50 45.50 45.50 394

*

) 73.00 97.50 61.00 61.00 3 12 71⁄2

*

) 101.50 136.00 80.00 80.00 3 15 101⁄2

*

) 118.50 159.50 94.00 94.00 3 18 131⁄2

*

) 212.00 230.50 180.00 180.00 3 24 191⁄2

*

3

1

⁄2" insertion length, and a 12" stem length, $59.50.

⁄4 NPT external thread,

See Introduction to Thermowells,

Maximum Fluid Velocity—feet per second

Well Type Material

3

⁄4" - 385S Brass 290 (145) 150 (80) 54.1 (48) 27.6 16.7 11.1 8.0 6.0

1

⁄2 41⁄2 71⁄2 101⁄2 131⁄2 161⁄2 191⁄2 221⁄2

2

and Carbon Steel 326 (260) 192 (144) 69.5 35.4 20.5 14.3 10.3 7.7

3

⁄4" - 385L A.I.S.I. 304 & 316 349 (360) 199 71.9 36.6 21.2 14.8 10.7 8.0

Where single values appear in the velocity tables, these may be considered safe for water, steam, air or gas. In the
shorter insertion lengths, consideration is given to the velocity pressure effect of water flowing at higher velocities. The
values in parentheses, therefore, represent safe values for water flow, while the unbracketed values may be used for
steam, air, gas and similar density fluids.

See Page B-24 for Pressure-Temperature Ratings.

Monel 316 (320) 189 (178) 68.1 34.8 20.8 14.0 10.0 7.5

B-23

Insertion Length – “U”

Section on Velocity, page B-3

1

⁄2

1

⁄2

1

⁄2

1

⁄2

One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | [e-mail]

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