Series Comparison — N vs E vs H

Select the right PEECO series for your application

Model Codes by Series

N Series — Non-Explosion Proof

NP-SScrewed (NPT) connection

NP-FFlanged connection

NTTee mount

NT-FWafer / tee-flange mount

E Series — Explosion Proof

EP-SScrewed (NPT) connection

EP-FFlanged connection

ETTee mount

ET-FWafer / tee-flange mount

H Series — High Pressure XP

HP-SScrewed (NPT) connection

HP-FFlanged connection

HTTee mount

HT-FWafer / tee-flange mount

Specification	N Series Non-Explosion Proof	E Series Explosion Proof	H Series High Pressure XP
Series Designation	N Series	E Series	H Series
Enclosure Type	NEMA 4X Slip-On Cover	NEMA 7 Threaded Cover	NEMA 4 / NEMA 7 Threaded Cover
Hazardous Location	None — general purpose	Class I, Div. 1, Group D	Class I, Div. 1, Group D (XP option)
Max Pressure	600 PSI	600 PSI	10,000 PSI
Temperature Range	-450°F to +300°F std; to +2,000°F w/ extension	-450°F to +300°F std; to +2,000°F w/ extension	-450°F to +300°F std; to +2,000°F w/ extension
Pipe Sizes	1/16" to 12 ft.+	1/16" to 12 ft.+	1/16" to 4" std; larger available
Switch Action	SPDT std; DPDT, SPST-NO, SPST-NC available	SPDT std; DPDT, SPST-NO, SPST-NC available	SPDT std; DPDT, SPST-NO, SPST-NC available
Electrical Rating	15A 125–480 VAC; ½A 125 VDC	15A 125–480 VAC; ½A 125 VDC	15A 125–480 VAC; ½A 125 VDC
Body Material	Carbon steel, 316SS, or any machinable metal	Carbon steel, 316SS, or any machinable metal	316SS std; Monel, Hastelloy, Inconel, Ti available
Connections	NPT, flanged, tee, wafer, welded	NPT, flanged, tee, wafer, welded	High-pressure NPT, SAE, or custom
Typical Applications	Cooling water, HVAC, pump protection, general industrial	Refineries, chemical plants, offshore, solvent systems	Hydraulic systems, oil & gas wellhead, waterblast

1If your application requires pressures above 600 PSI → H Series (High Pressure XP)
2If your installation is in a hazardous (classified) location (Class I, Div. 1 or 2) → E Series or H Series (XP)
3If your installation is in a non-hazardous location at 600 PSI or below → N Series
4All three series share the same proven PEECO flow-actuated mechanism and accept the same options and accessories.

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