Northeast Controls Inc.

PEECO Flow Switches

Non-Explosion Proof Flow Switches

Standard PEECO switches for non-hazardous locations — pressure to 600 PSI

PEECO non-explosion proof flow switch

PEECO Non-Explosion Proof Flow Switches

PEECO non-explosion proof flow switches are the standard product line for non-hazardous (ordinary) locations. They are flow-actuated mechanical switches — movement is minimal, giving long service life with accurate, repeatable actuation. Each switch is custom-designed for the specific application: fluid type, pipe size, pressure, temperature, and electrical requirements are all specified at time of order.

Available in NEMA 1 (general purpose), NEMA 4 (weatherproof), and NEMA 4X (stainless, corrosion resistant) enclosures. All standard mounting styles are available.

Specifications

Pressure Rating
To 600 PSI standard
Temperature Range
-450°F to +300°F standard; to +2,000°F with finned body extension
Pipe Sizes
1/16" to 12 ft. diameter or larger
Switch Action
SPDT standard; DPDT, SPST-NO, SPST-NC available
Electrical Rating
15A 125-250-480 VAC | 1/2A 125 VDC / 1/4A 250 VDC standard; custom ratings available
Enclosure
NEMA 1, NEMA 4, NEMA 4X (stainless)
Body Materials
Carbon steel, 316SS, Monel, Hastelloy, or any machinable metal
Wetted Parts
316SS standard; Teflon/PVC/Kynar coating optional
Connections
Screwed (NPT), flanged, tee, wafer, or welded
Actuation
Flow velocity — not pressure differential
PEECO N-Series mounting styles — Model NT-F Wafer Mount, NP-F Flange Mount, NT Tee Mount, NP-S Thread Mount

Mounting Styles

Screwed (NPT) Model NP-S

Standard threaded connection for most pipe sizes. 1/4" to 4" NPT.

Flanged Model NP-F

ANSI 150# or 300# flanged for larger pipe sizes and higher-pressure applications.

Tee Mounting Model NT

Switch mounts in a standard pipe tee — no special fittings required.

Wafer Style Model NP-F

Sandwiched between flanges for compact installation in tight spaces.

Welded

Weld-in mounting for permanent installation or high-vibration service.

Typical Applications

  • Cooling water flow confirmation
  • Pump protection (low-flow shutdown)
  • Lubrication oil flow monitoring
  • HVAC chilled water systems
  • Boiler feedwater flow detection
  • Chemical injection confirmation
  • Hydraulic system flow monitoring
  • General industrial process control

Custom-Engineered to Order

PEECO flow switches are not off-the-shelf items. Each switch is configured for your specific application. To request a quote, provide: fluid type, pipe size, flow rate range, operating pressure, operating temperature, electrical requirements (voltage, amperage, switch action), and area classification. Contact Northeast Controls Inc. for application engineering assistance.

1-201-419-6111 · [email protected]

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