Pressure Switches0 pages

Pressure Switch Part Numbers
Pressure Switches:
The SQ range of compact pressure switches are manufactured with quality in mind, unlike many other manufacturers who’s products mechanical life
is 1 million cycles the SQ range has a mechanical lifetime of 1.5 million cycles when operated below a pressure of 50bar. Pressures from 0.2bar to
100bar can be accommodated with either factory fixed or adjustable pressure ranges. With a choice of Diaphragm materials the switches can cope
with a variety of chemicals including compressed air, hydraulic oil, engine oil, heating oil and water.
The Comus International group of companies consists of:
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Pressure switch
Hex size
Body material
Contact type
Diaphragm material
Connection fitting
Screw thread
Pressure rating
Example SQ24B-ANC-2A1
Pressure switch
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How a Pressure switch works:
A pressure switch works by a rubber disc (the diaphragm) changing it’s shape when subjected to
pressure from either a fluid or a gas. This deflection of the diaphragm in turn pushes a small rod
or piston which connects to a set of contacts via a spring. When the pressure is enough to overcome the tension of the spring the contacts will either open or close depending on the set up thus
making or breaking the connection. This action can be utilised in many applications such as alerting
when pressure drops in medical equipment, cutting of power to machines in the event of a fault,
warning and controlling of air or oil pressure and detection of leaks in pressurised systems.
ISO 9001:2008
CERTIFICATE NO: 03-12314
ISO 9001:2008
CERTIFICATE NO: FM 21080
Comus Technologies BV
Jan Campertstraat 11
6416 SG Heerlen,
The Netherlands
Tel: +31 (0) 45 5439345
Fax: +31 (0) 45 5427216
email: jperez@comus-intl.com (USA, Canada)
G.Kemper@comus.be (Europe, Asia)
Switching Technologies Gunther
B-9, B-10, & C-1 Special Economic Zone (MEPZ)
Kadapperi
Tambaram
Chennai 600 045
India
Tel: +32 (0)12 390400
Fax: +32 (0)12 235754
email: info@comus.be
internet: http://www.comus.be
Comus Electronics and Technologies
India Private Limited
No 3. Kamaraj Nagar 2nd Street
Tambaram Sanatorium
Chennai 600045
India
Tel: +91 44 43219090
Fax: +91 44 22628198
email: P.Ramesh@stg-india.com
chudan@comus-intl.com
Website:http://www.comusindia.com
SQ Series
Body material
B = Brass
S = Stainless Steel grade 316
Z = Zinc plated steel
Contact type
A = Normally open contacts
B = Normally closed contacts
S = Single pole double throw (SQ 27 only)
Diaphragm material
Comus Belgium BVBA
Overhaamlaan 40
B-3700 Tongeren
Belgium
24mm
27mm
N = Nitrile (standard)
V = VITON
E = EPDM (ethylene propylene diene Monomer)
S = Screw terminals
T = Tag (spade terminal)
C = DIN Cap
Screw thread
Features:
Robust in any severe application
Customised body housing (Steel, 316SS, Brass)
Selectable contact (Gold or Silver Contact)
Screw / push on terminal contact
Cost effective yet high quality
Easily adjustable pressure range setting
Tel: (1)973 - 777 - 6900
Fax:(1)973 - 777 - 8405
email: info@comus-intl.com
internet: http://www.comus-intl.com
Assemtech Europe Limited
Unit 7, Rice Bridge Industrial Estate
Thorpe - Le - Soken
Essex
England
CO16 0HL
Tel: +44 (0)1255 862236
Fax: +44 (0)1255 862014
email: sales@assemtech.co.uk
internet: http://www.assemtech.co.uk
Hex length
Connection fitting
Comus International
454 Allwood Road
Clifton
New Jersey 07012
U.S.A
1
2
3
4
5
6
7
8
9
Pressure rating fixed
F1
F2
F3
F4
A1
A2
A3
A4
Adjustable
Optional Socket Type
Our Switch Ranges:
We now have a comprehensive range of switches including: Reed Switches, Tilt Switches, Proximity Switches and Magnets,
Electronic Proximity Switches, Non Mercury Tilt, Tip Over and Acceleration Switches, Float Switches, Glass Mercury and Mercury
Switches.
Socket wiring
Add (XX) to end
We also have a large network of worldwide agents. These can be found on any of our websites, or on our company profile brochure.
Cap only part numbers
SQA-1130
Com/19/jan11/Iss.1
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A
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M10X1 (tap 1°)
M10X1
M12X1.5
⅛" PT
¼" PT
⅛" G
¼" G
⅛" NPT
¼" NPT
0.2 Bar
1.1 Bar
5 Bar
50 Bar
0.2-1 Bar
1-19 Bar
20-50 Bar
51-100 Bar
DT04-2P
250 Type
3mm PVC (2P)
3mm PVC (2P) with wrap up sheath
6.4mm PE Cable
3mm PVC (2P) with heat shrink sheath