PEECO High Pressure Flow Switches
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| For Hazardous Locations with Maximum Allowable Pressure to 10,000 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.
Utilizing
¼" thick Heat Treated aluminum cover with
5 fully engaged threads, all units are designed to encapsulate
any internal explosion. In lieu of a bellows assembly
a solid rod extends through a flexure tube brazed or
welded into a S.S. ball fixture. Unit has been successfully
field tested up to 10,000psi. Wall thickness of the
flexure tube will vary with pressure requirements. This
model is recommended for all pressures over 600 psi.
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) |
| Flexure Tube: |
316SS |
| 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 |
| Flexure Tube: |
Any machinable Metal |
| 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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| Available
Models: |
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Style
HT-F |
| Connection:
Wafer Tee |
| Standard Size:
2" 150# or 300# R.F. |
| Optional: Any
size, style and rating. |
| Line Size: 2"
and under (standard) over 2" (optional). |
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| Also available
in low and low-low flow models. |
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Style
HT |
| Connection:
Screwed Tee. |
| Standard Size:
Specify Size. |
| Optional: Socket-Weld,
Butt-Weld. |
| Line Size: 2"
and under (standard) over 2" (optional). |
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| Also available in low and low-low flow model. |
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Style
HP-S |
| Connection:
Screwed Top Mount. |
| Standard Size:
2" npt. |
| Optional Size:
Any other size. |
| Line Sizes: 2½" and up. |
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Style
HP-F |
| Connection:
Flanged (specify distance from face of mounting flange
to top i.d. or c/l of pipe and pipe size. |
| Standard
Size: 2" 150# or 300# R.F. |
| Optional
Size: Any size, style and rating. |
| Line Size: 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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