PEECO Weather-Proof
Flow Switches
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| For Non-Hazardous Locations with Maximum Allowable Pressure to 600 PSI |
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 Flow Actuated Electrical Switches are unique in the field of flow controls. Our switches are not a standard shelf item, but are specifically produced to accommodate your application. The flow switches are maintenance free in lines from 1/16" to 12' or larger.
Encompassing all the
features and reliability of our more popular Explosion Proof
models, these units are furnished with a slip-on steel cover. This .062 thick
housing is NEMA 4X weather proof, by utilizing
a special "O" ring seal fitted into a mechanical groove
in the body; a standard on all of the non-explosion proof models.
The housing & cover are both made of heat treated aluminum
T-356 and are epoxy coated (for extra protection). Each of the
four basic styles shown are adaptable to many other fittings
and configurations. |
 Standard Material of Construction
| Cover: |
Heat Treated Aluminum 356-T6 |
| Housing: |
Heat Treated Aluminum 356-T6 |
| Body: |
Steel (ASTM 108-99 & A29-99) |
| Bellows: |
Seamless 321 Stainless Steel |
| Stem Paddle: |
302, 303 Stainless Steel |
| Bearings: |
440C Stainless Steel Micro Ball |
| Name Plates: |
Aluminum |
| Micro Switch: |
15A, 125-250-480 VAC SPDT 1/2 A., 125VDC (see optional switches) |
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Optional Material of Construction
| Cover: |
BY APPLICATION |
| Housing: |
BY APPLICATION |
| Body: |
316SS, Teflon, Polypropylene, Kel-F, Kynar, Inconel, PVC |
| Bellows: |
Nickel Plated SS, Teflon, Polypropylene, Kynar, PVC |
| Stem Paddle: |
MOST METALS, Teflon, Kynar, Polypropylene, PVC |
| Bearings: |
440C Stainless Steel Micro Ball |
| Name Plates: |
Stainless Steel |
| Micro Switch: |
400F, 10A. 125 VDC, Hermetically Sealed, Environment Proof, 600 VAC, 25A, DPDT, and many others. Silver Brazing Alloy: Copper - 15.5%, Silver - 50%, ZINC - 16.5%, Cadmium - 18%. Cadmium free AND Copper free Alloys are available |
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| Style
NT-F: Wafer Tee Connection |
| Connection: Wafer Tee |
| Standard Size: 2" 150#
or 300# R.F. |
| Optional Size: Any size, style
and rating. |
| Line Size: 2" and under
(standard) over 2" |
| Also available in low and
low-low flow models. |
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Style NT:
Screwed Tee Connection |
| Connection: Screwed Tee. |
| Standard Size: Specify Size |
| Optional: Socket-Weld, Butt-Weld. |
| Line Size: 2" and under
(standard) over 2" (optional). |
| Also available in low and low-low
flow model. |
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Style NP-F:
Flanged Connection |
| Connection: Flanged* |
| Standard Size: 2" 150#
or 300# R.F. |
| Optional Size: Any size, style
and rating. |
| Line Size: 2½" and
up. |
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| * (specify distance from face
of mounting flange to top i.d. or c/l of pipe and pipe
size.) |
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Style
NP-S: Screwed Connection |
| Connection: Screwed Top Mount. |
| Standard Size: 1¼"
npt. |
| Optional Size: Any other size. |
| Line Sizes: 2½" and up. |
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Flow Switch Selection Chart:
| 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 |
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| 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 |
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| Note (1): For 400° F change micro-switch. |
| Note (2): Specify NEMA classification. |
| Note (3): Specify distance from face of mounting flange to top ID or C/L of pipe and pipe size. |
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