Howell Labs: Home page

Howell Laboratories, Inc.

P. O. Box 389, 188 Harrison Rd., Bridgton Maine 04009 USA
(207) 647-3327 (888) 744-8359 FAX (207) 647-8273 contracts@howelllabs.com

- An Employee-Owned Company -
Certified to ISO 9001:2000

HLI News
New contract: 7600 ECOLCELL Chlorinators for DDG-113 and follow ships.
[More]
New Products
Portable seawater chlorinator: Port-A-Chlor 8600.
[More]

Upgraded medium-pressure air dehydrator, Model 8785, to replace our obsolete Model 7053.
Call now for more information

Customized potable water treatment systems for Iraqi 35m patrol boats ...
... or for your application!
Call now for more information
Around the World
January 2010:
HLI supporting relief efforts in Haiti
At HLI
September 2008: David Douglas joins HLI as Director of Sales, Marine Products.

Parts for Model 7148 Mk I
Low-Pressure Air Dew Point Monitor/Alarm

NOTE: This list does not include hardware items such as bolts, nuts, washers, and O-rings. The manufacturer uses stainless steel hardware in standard U. S. sizes, and MIL-SPEC O-rings.
Howell Laboratories, Inc. is CAGE 22501.

HLI Drawing No. 7148
Electrical Schematic: 7072
Technical Manual: TM7148-MI-00

Part Description NSN HLI Part No. Quantity per Unit

Manifold Weldment

various (depending on pipe size) 1
O-Ring, Inlet and Outlet Unions 1/2" M83248/2-023 2
3/4" 5330-01-184-7576 M83248/2-125 2
1" M83248/2-129 2
1-1/4" M83248/2-134 2
1-1/2" M83248/2-232 2

O-Ring Retainer, Inlet and Outlet Unions 1/2" 3899-03 2
3/4" 5365-01-088-3820 3899-04 2
1" 5365-01-088-3821 3899-05 2
1-1/4" 3899-06 2
1-1/2" 3899-07 2

Overhaul Kit, Ball Valve 1/2" 5948-4/6 3 ref
3/4" 4820-00-577-9624 4772-4/6 3 ref
1" 4816-2/6 3 ref
1-1/4" 6224-4/6 3 ref

Humidity Sensor Assembly

3905-G503 1
Humidity Sensor 3905-03 1
O-Ring, Thread, Humidity Sensor M83428/2-116 1
Cable Assembly 3905-06 1
Ferrite Bead 6257-02 1

Electrical Enclosure

7006-G501 1
Lamp-Test Push Button Switch 5930-01-285-6665 3917-03 1
Alarm Lamp (red) 6210-01-280-3356 3907-G503 1
Power-On Lamp (white) 6210-01-170-7327 3907-G501 1
Lamp Replacement Bulb 3907-06 4 ref
Toggle Switch 5930-00-642-9188 3042-02 2
Transformer 4863 1
Fuse 3043-12 2
Flasher 5945-01-193-0058 4901 1
Potentiometer (humidity alarm controller adjusting knob) 4705-04-02 1
Dew Point Meter 5639-G501 1
Electromagnetic Interference Filter 6777-01 1
Humidity Alarm Buzzer 6797-01 1
Resistor RCR42G682JS 1

Last updated: 10/07/09
Webmaster: Al Friend
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