 Reliable
... PEECO flow
actuated switches are simple mechanical devices. Movement
and friction are quite minute, giving longer life with
accurate repetition.- Positive ... Properly
designed, there is nothing to interfere with the action. A change
in flow conditions mandates the proper response
from the PEECO Flow Actuated Electrical Switch.
- Capable ...
Designed for your application
with minimal pressure drop, the PEECO Flow Actuated Electrical
Switch is completely field adjustable, available in any
electrical rating desired, any type of connection, most
metals, Teflon®
and plastics. Explosion proof and non-explosion proof.
- Functional ...
Based upon the principle of direct actuation
by the flow of pipe or duct media such as liquids, slurries,
fine powders, etc. The PEECO Flow Actuated
Electrical Switch will reliably indicated any
change in flow conditions. Peeco Flow Actuated Electrical
Switches are unique in the field of flow controls. They are
not a standard shelf item, but are specifically designed
to accommodate your application. Maintenance free in
lines from 1/16" to
12 ft. or larger.
 Actuated by flow - not pressure. No need
to be concerned with minimum and maximum flow ... you state
your requirements, Peeco will accommodate them. From -450° F
to +2000° F.
From high vacuum service to 10,000 psi. Fully field adjustable
over the entire range (less than 10% dead band/differential
between make and break).
Explosion proof models are approved by Canadian Standards
Associate (CSA), City of Los Angeles, Institute National des Industries
(Belgium), French Approval I.C.I.E. and the U.S. Army Corp
of Engineers. Electrical by Underwriters Laboratories.
The desired flow indication - increase, decrease, reverse
- is transmitted mechanically from the line media by deflection
of the paddle through the stem and bellows or flexure tube
assembly, causing micro-switch actuation and resultant electrical
contact for transmission of signal to whatever ultimate point
desired.
Base travel of the stem is from 1/16" (H Model) to 1/4"
(E Model). Standard Micro-switch travel is approximately
.005"
The flex (bellow or tube) is silver brazed or welded, per
your specification, making the Peeco switch inherently leak
proof, without employing packing glands or stuffing boxes.
Our trained technical staff is available (at no cost to
you) for consultation, design suggestions, engineering, layout
problems or a general discussion of PEECO flow actuated electrical
switches and their place in the dynamics of flow.
|
| Parameters |
Explosion Proof |
High Pressure |
Non-Explosion Proof |
| Pressure to 600psi |
Yes |
No |
Yes |
| Pressure to 10,000psi |
No |
Yes |
No |
| Temp. to 300° F (note 1) |
Yes |
Yes |
Yes |
| Temperatures to 2000°F |
Finned Body Extension Required |
| Hazardous Locations |
Yes |
Yes |
|
| Non-Hazardous Locations (note 2) |
No |
No |
Yes |
| Flow Rates |
See Flow Rate Page for Details |
| Screwed Connections |
Yes |
Yes |
Yes |
| Flanged (see note 3) |
Yes |
Yes |
Yes |
| Tee, Screwed or Wafer Styles |
Yes |
Yes |
Yes |
| Welded or Special Duct Mountings |
Yes |
Yes |
Yes |
| Multiple Actuation |
Yes |
Yes |
Yes |
| Turbulence, Cavitation, Pulsation |
Yes |
Yes |
Yes |
| Teflon or other Coatings |
Paddle - Stem |
Yes |
Paddle - Stem |
| All Teflon, PVC, Kynar or other |
Yes |
No |
Yes |
| All Stainless Steel |
Yes |
Yes |
Yes |
| Bronze |
Yes |
Yes |
Yes |
| Any Machinable Metal |
No |
Yes |
No |
| Air Operated |
Yes |
Yes |
No |
| Tri-Clamp / Tri-Clover |
Yes |
Yes |
Yes |
| Direct Readout Option |
Yes |
No |
Yes |
| Tropicalization, other coatings |
Yes |
Yes |
Yes |
| Signal Light |
Yes |
Yes |
No |
| Alarm Silencing Relay |
Yes |
Yes |
Yes |
| DIN Flanges and others |
Yes |
Yes |
Yes |
| Tamper-Proof Setup |
Yes |
Yes |
Yes |
| Special Flow Conditions |
Yes |
Yes |
Yes |
|
|
