Circulation Heater Options

Products

Heaters

Circulation Heaters

Options

Circulation Heater Options

TERMINAL HOUSINGS

Screw Plug
NEMA 4/7 Moisture/Explosion Resistant

Plug Size	C	D	E	F	G
1"	3 ⁵⁄₁₆	4 ½	1	6 ⅛	1 ¼ NPT
2" & 2 ½"	4 ⅜	5 ¾	1 ¼	7 ⅝	1 ½ NPT

Flanged
NEMA 4 Moisture Resistant

Flange Size	"A" Maximum
3" - 150#	4 ½"
5" - 150#	6 ¾"
8" - 150#	8 ¾"
10" - 150#	10 ¾"
12" - 150#	12 ¾"
14" - 150#	14 ¾"

Flanged
NEMA 7 Moisture Resistant

Flange Size	"A" Maximum
3" - 150#	4 ½"
5" - 150#	6 ¾"
8" - 150#	8 ¾"
10" - 150#	10 ¾"
12" - 150#	12 ¾"
14" - 150#	14 ¾"

TEMPERATURE CONTROLS

Bulb & Capillary
Style	Range	Code No.	Availability
Single Pole	30-110°F	T1	All 1" Screw Plugs
	60-250°F	T2	Std. on 1" Plugs
	175-550°F	T3	All 1" Screw Plugs
Double Pole	0-100°F	T4	All Plugs & Flanges
	60-250°F	T5	Std. on 3", 5", 8" Flange
	150-500°F	T6	All Plugs & Flanges

Solid State
Style	Range	Code No.	Availability
Non-Indicating Sub-Panel	0-300°F	86-03	All Plugs & Flanges
	0-800°F	86-08	All Plugs & Flanges
	500-1500°F	86-515	All Plugs & Flanges
¼ DIN Deviation Meter	0-300°F	20-03	All Plugs & Flanges
	0-800°F	20-08	All Plugs & Flanges
	500-1500°F	20-515	All Plugs & Flanges
¼ DIN Digital LED	0-1000°F	40-01	Std on High Capacity Avail. on all others
	0-2000°F	40-02	All Plugs & Flanges

OTHER OPTIONS

High Temp. Standoff Housing

Conduit Connections - Circulation Heaters

Over Temp. Thermocouple to Sheath

(Standard on High Capacity Heaters)

Additional Options

a.	Weatherproof insulation shroud
b.	High temp. ceramic fiber insulation. (Standard on high capacity units.)
c.	All stainless steel construction.

d.	Passivation on all wetted surfaces
e.	ASME section 8 construction on vessel
f.	High pressure construction

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Certifications

Our heaters are currently UL recognized, CSA compliant and CE approved. We are ASME and National Board certified for Section VIII Div 1 Pressure Vessel Welding.

Additionally, we have built heaters to Military standards for the Army, Navy, Coast Guard and DCSC. We have designed and built systems to Canadian pressure vessel codes CRN, ABSA & TSSA. We also meet certain NSF, NACE and API standards.