| |
PEECO Explosion Proof Flow
Switches |
| For Hazardous Locations with Maximum Allowable Pressure to 600 PSI / CSA Approved |
 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.
All explosion proof models are rugged, heavy duty units exceeding all UL Code requirements. Each of the four basic styles are adaptable to many other fittings and configurations. Utilizing 1/4" thick Heat treated aluminum cover (shown at right) with 5 fully engaged threads, these units are designed to encapsulate any internal explosion. All explosion proof models meet Class 1, Group D requirements for use in hazardous locations; all NEMA classifications available. The housing & cover are both made of heat treated aluminum T-356 and are epoxy coated (for extra protection). Other classes and groups are available. Conduit outlet: 1/2" NPT on all models; 3/4" and metric sizing available. |
|
|
| |
| -Available
Models: |
 |
Style
ET: Screwed Tee Connection (see
picture) |
| Connection: Screwed Tee. |
| Standard Size: Specify
Size. |
| Optional: Socket-Weld,
Butt-Weld. |
| Line Size: 2" NPT
and under (standard) over 2" NPT (optional). |
| Also available in low and low-low flow model. (see chart) (see picture) |
| |
| |
 |
 |
Style
EP-F: Flanged Connection (see
picture) |
| Connection:Flanged* |
| Standard Size: 2"
150# or 300# R.F. |
| Optional Size: Any size,
style and rating. |
| Line Size: 2½"
and up. |
| *specify distance from face of mounting flange to top i.d. or c/l of pipe and pipe size. |
| |
| |
| |
| |
| |
| |
| |
|
 |
Style
EP-S: Screwed Connection (see
picture) |
| Connection:
Screwed Top Mount. |
| Standard
Size: 2" NPT |
| Optional
Size: Any other size. |
| Line Sizes:
2½" and up. |
| See Dimensions (176 KB pdf file) |
| |
| |
| |
| |
| |
|
 |
Style
ET-F: Wafer Tee Connection (see
picture) (see
dimensions) |
| 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" (optional) |
| Also available in low and low-low flow models. (see chart) |
| |
| |
| |
| |
| |
| |
| 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) |
|
|
|
| |
| 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 |
|
|
|
| |
| 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 |
|
| 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 |
|
|
|
|
|
| |
| 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. |
| |
|
| |
|
|
|
|
| |
| Previous
Page |
| |
| |
|
