Flanged Immersion Heaters For Water & Corrosive Solution | ATEX Hazardous Areas

Flanged Immersion Heaters

For Hazardous Area Applications

Chromalox offer a wide range of flanged immersion heaters to heat many different types of fluid such as PH, dissolved mineral materials, additive fluids, water for drinking use.

Flanged immersion heaters in the Chromalox range offer a watts density between 4 and 10 W/cm² and feature carbon steel or stainless steel flanges, stainless steel or incoloy sheathed elements and can be brazed or welded.

The standard range of products have a PN16 or 150 Ibs ANSI flange, but can be supplied, on request, with flanges up to 2,500 Ibs.

Chromalox Flanged Immersion Heaters – Features

ATEX Certifications for Hazardous Locations
IEC/CE Certification
IP55, IP66, & IP42 ingress protection ratings
DN or ANSI flange connections
400V 3ph
Gland Plates
Sensor well for thermostat, sensor or cutout
316 Stainless or Incoloy 800 heating sheath
Removable heating elements
Terminal housing standoffs
Contact our expert sales team for more information

Flanged Immersion Heaters

product range

chromalox TRHGB 080 / 100

TRHGB 080 and TRHGB 100 are flameproof immersion heaters with metric flanges, used to heat fluids within hazardous areas.

ATEX Certification: ATEX II 2 G – Ex d II C
Temperature Class: T1 to T6
PN16 DN80 or DN100 carbon steel or stainless steel flange
Ø16mm, AISI 316L sheathed elements
Watts Density : 10 W/cm²
Built in pocket for optional sensor, thermostat, or cutout
Stood off painted, IP55 mild steel terminal enclosure, supplied with glands
Voltage 400 V / 3ph

Immersion Heater Specification

TRHGB 080 | TRHGB 100 Dimensions

Immersion Heater Product Guide

On request:
• Flanges according to standard PN10 / 20 / 25 / 40 / or 50
• Stainless steel enclosure.
• Special Watts density ( W / sq. cm )
• Other sheath materials (copper / AISI 321 / Incoloy 800 / Incoloy 825 / Inconel 600 / etc.)

➡ Add your required temperature class (T1, T2, T3, T4, T5, or T6) at the end of the order code.

Chromalox Order Codes				Immersion Heater Specification
Flange Size				Output	Length ‘X’	Cold ‘NC’
DN80		DN100
Carbon Steel	Stainless Steel AISI 316L	Carbon Steel	Stainless Steel AISI 316L
TRHGB080A004I10	TRHGB080I004I10	TRHGB100A004I10	TRHGB100A004I10	4 000 W	290 mm	100 mm
TRHGB080A006I10	TRHGB080I006I10	TRHGB100A006I10	TRHGB100A006I10	6 000 W	330 mm
TRHGB080A009I10	TRHGB080I009I10	TRHGB100A009I10	TRHGB100I009I10	9 000 W	430 mm
TRHGB080A012I10	TRHGB080I012I10	TRHGB100A012I10	TRHGB100I012I10	12 000 W	530 mm
TRHGB080A015I10	TRHGB080I015I10	TRHGB100A015I10	TRHGB100I015I10	15 000 W	630 mm
TRHGB080A018I10	TRHGB080I018I10	TRHGB100A018I10	TRHGB100I018I10	18 000 W	730 mm
TRHGB080A024I10	TRHGB080I024I10	TRHGB100A024I10	TRHGB100I024I10	24 000 W	930 mm
TRHGB080A030I10	TRHGB080I030I10	TRHGB100A030I10	TRHGB100I030I10	30 000 W	1 125 mm
TRHGB080A040I10	TRHGB080I040I10	TRHGB100A040I10	TRHGB100I040I10	40 000 W	1 430 mm
TRHGB080A050I10	TRHGB080I050I10	TRHGB100A050I10	TRHGB100I050I10	50 000 W	1 780 mm

chromalox TRHGb

TRHGB are flameproof immersion heaters with sheathed elements on the flange, used to heat fluids within hazardous areas.

ATEX Certification: ATEX II 2 G – Ex d II C
Temperature Class: T1 to T6
Stood off stainless steel or mild steel enclosure, Ø 8″ /12″ / 14″ / 16″ / 18″ / 20″ / 26″ / 28″ / or 30″
Flanges from DN125 up to NB30
Copper, nickel plated copper, AISI 316L stainless steel, Incoly 800, Incoloy 825 sheathed elements Ø 8 / 10 / 12.8 / or 16 mm
Watts density suited to characteristic of the heater fluid
Feasible output up to 1350 kW

chromalox TRHC/TRHCC

TRHC and TRHCC are flameproof immersion heaters with removable sheathed elements on the flange, used to heat fluids within hazardous areas.

TRHC ATEX Certification: ATEX II 2 G – Ex d II B
TRHCC ATEX Certification: ATEX II 2 G – Ex d II C
Temperature Class: T1 to T6
Version with Ø 16mm removable sheathed elements set in pocket Ø 20mm
Designed with sheathed heating elements to allow their removal without draining tanks or vessels
Feasible output up to 1350 kW (TRHCC) or 950 kW (TRHC)
Maximum Watts Density : 4 W/cm²

chromalox TDG / TDG-S / TDG-SC

TDG, TDG-S and TDG-SC are flameproof immersion heaters with ceramic core elements on the flange, used to heat fluids within hazardous areas.

TDG/TDG-S ATEX Certification: ATEX II 2 G – Ex d II C
TDG/TDG-SC ATEX Certification: ATEX II 2 G – Ex d II B
Temperature Class: T1 to T6
Version with pockets Ø 42.2 mm and removable ceramic core elements Ø 32 mm
Feasible output up to 40 kW
Maximum Watts Density : 4 W/cm²

chromoalox FPF

The Chromalox FPF range are ATEX immersion heaters with ANSI flanges, used to heat fluids within hazardous areas. These heaters feature both increased safety and flameproof types of explosion protection.

ATEX Certification: ATEX II 2 G – Ex de II C
Temperature Class: T1 to T6
For ambient temperature -50°C +40°C (+60°C with a longer stand off)
Stood-off painted terminal enclosure in cast iron
150Ib ANSI Carbon steel flange 2½” or 3”
Ø 11mm Incoloy 800 sheathed elements
Watts density: 9.3 W/cm² or 3.9 W/cm²

Immersion Heater Specification

Chromalox FPF Dimensions

Immersion Heater Product Guide

➡ Add your required temperature class (T1, T2, T3, T4, T5, or T6) at the end of the order code.

Chromalox Order Codes		Immersion Heater Specification
Flange Size		Output	Length ‘X’	Cold ‘NC’	Weight
NB 2.5″	NB 3″	Output	Length ‘X’	Cold ‘NC’	Weight
ATEX Immersion Heaters with Wattage Density – 3.9 W / cm²
FPFO 00303/25	FPFA 00303/25	3 000 W	550 mm	30 mm	15 kg
FPFO 00403/25	FPFA 00403/25	4 500 W	740 mm		15 kg
FPFO 00603/25	FPFA 00603/25	6 000 W	940 mm		18 kg
FPFO 00703/25	FPFA 00703/25	7 500 W	1 135 mm		18 kg
FPFO 10903/25	FPFA 10903/25	9 000 W	1 330 mm		20 kg
FPFO 01203/25	FPFA 01203/25	12 000 W	1 715 mm		22 kg
FPFO 01803/25	FPFA 01803/25	18 000 W	2 495 mm		29 kg
ATEX Immersion Heaters with Wattage Density – 9.3 W / cm²
FPFO 00303/60	FPFA 00303/60	3 000 W	200 mm	30 mm	6 kg
FPFO 00603/60	FPFA 00603/60	6 000 W	365 mm		7 kg
FPFO 00903/60	FPFA 00903/60	9 000 W	525 mm
FPFO 01203/60	FPFA 01203/60	12 000 W	685 mm
FPFO 10503/60	FPFA 10503/60	15 000 W	850 mm		8 kg
FPFO 01803/60	FPFA 01803/60	18 000 W	1 010 mm		8 kg
FPFO 02403/60	FPFA 02403/60	24 000 W	1 345 mm		9 kg
FPFO 03003/60	FPFA 03003/60	30 000 W	1 660 mm		10 kg
FPFO 03603/60	FPFA 03603/60	36 000 W	1 985 mm		11 kg

Chromalox FPF range of hazardous area immersion heaters are also available with 5”, 6”, 8”, 10” or 12” 150 Ib ANSI carbon steel flange.

Note : The standard range with a watts density of 3.9 W/cm² (range 12 up to 360kW) is also available – Contact our sales team for more information.

On request:
• Standard design on 14” and 16” flanges (output up to 936 kW)
• 300 to 2500 Ib ANSI flanges
• Stainless steel enclosure

Option:
• Safety thermostat with automatic or manual rest
• Pt 100 safety sensor
• Thermocouple for skin temperature safety

Chromalox FPF | Dimensions

Standard immersion heater models with a watt density of 9.3 W/cm²

Immersion Heater Product Guide

➡ Add your required temperature class (T1, T2, T3, T4, T5, or T6) at the end of the order code.

Output	Length ‘X’	Flange Size
Output	Length ‘X’	5″	6″	8″	10″
6 kW	275 mm	FPFA00606/60	FPF00606/60	–	–
9 kW	355 mm	FPFA00906/60	FPF00906/60	–	–
12 kW	430 mm	FPFA01206/60	FPF01206/60	–	–
15 kW	515 mm	FPFA01506/60	FPF01506/60	–	–
18 kW	595 mm	FPFA01806/60	FPF01806/60	–	–
24 kW	760 mm	FPFA02406/60	FPF02406/60	–	–
30 kW	915 mm	FPFA03006/60	FPF03006/60	–	–
36 kW	1085 mm	FPFA03606/60	FPF03606/60	–	–
45 kW	505 mm	–	–	FPF04518/60	–
48 kW	1405 mm	FPFA04806/60	FPF04806/60	–	–
54 kW	585 mm	–	–	FPF05418/60	–
60 kW	420 mm	–	–	–	FPF06030/60
	505 mm	–	–	FPF06024/60	–
	1730 mm	FPFA06006/60	FPF06006/60	–	–
72 kW	420 mm	–	–	–	FPF07236/60
	750 mm	–	–	FPF07218/60	–
	2055 mm	FPFA07206/60	FPF07206/60	–	–
82.5 kW	505 mm	–	–	–	FPF08233/60
84 kW	750 mm	–	–	FPF08421/60	–
90 kW	585 mm	–	–	–	FPF09030/60
	905 mm	–	–	FPF09018/60	–
	1790 mm	FPFA09009/60	FPF09009/60	–	–
108 kW	585 mm	–	–	–	FPF10836/60
	1075 mm	–	–	FPF10818/60	–
	2055 mm	FPFA10809/60	FPF10809/60	–	–

Output	Length ‘X’	6″	8″	10″	12″
120 kW	490 mm	–	–	–	FPF12048/60
	750 mm	–	–	FPF12030/60	–
	905 mm	–	FPF12024/60	–	–
	1730 mm	FPF12012/60	–	–	–
144 kW	570 mm	–	–	–	FPF14448/60
	750 mm	–	–	FPF14436/60	–
	1395 mm	–	FPF14418/60	–	–
	2055 mm	FPF14412/60	–	–	–
150 kW	1730 mm	FPF15015/60	–	–	–
162 kW	570 mm	–	–	–	FPF16254/60
165 kW	905 mm	–	–	FPF16537/60	–
168 kW	1395 mm	–	FPF16821/60	–	–
180 kW	735 mm	–	–	–	FPF18045/60
	1075 mm	–	–	FPF18030/60	–
	1720 mm	–	FPF18018/60	–	–
	2055 mm	FPF18015/60	–	–	–
210 kW	1720 mm	–	FPF21021/60	–	–
216 kW	1075 mm	–	–	FPF21636/60	–
225 kW	890 mm	–	–	–	FPF22545/60
240 kW	890 mm	–	–	–	FPF24048/60
	1395 mm	–	–	FPF24030/60	–
	1720 mm	–	FPF24024/60	–	–
270 kW	1720 mm	–	FPF27027/60	–	–
288 kW	1060 mm	–	–	–	FPF28848/60
288 kW	2045 mm	–	–	FPF28836/60	–
324 kW	1060 mm	–	–	–	FPF32454/60
324 kW	2045 mm	–	FPF32427/60	–	–
330 kW	1720 mm	–	–	FPF33033/60	–
360 kW	1380 mm	–	–	–	FPF36045/60
360 kW	2045 mm	–	–	FPF36030/60	–
396 kW	2045 mm	–	–	FPF39633/60	–
408 kW	1380 mm	–	–	–	FPF40851/60
432 kW	1380 mm	–	–	–	FPF43254/60
432 kW	2045 mm	–	–	FPF43236/60	–
468 kW	2045 mm	–	–	FPF46839/60	–
480 kW	1705 mm	–	–	–	FPF48048/60
504 kW	2045 mm	–	–	FPF50442/60	–
540 kW	2030 mm	–	–	–	FPF54045/60
612 kW	2030 mm	–	–	–	FPF61251/60
684 kW	2030 mm	–	–	–	FPF68457/60
720 kW	2030 mm	–	–	–	FPF72060/60

chromalox FPFr

Chromalox FPFR are ATEX immersion heaters with removable elements, used to heat industrial water within hazardous areas. These heaters feature both increased safety and flameproof types of explosion protection.

ATEX Certification: ATEX II 2 G – Ex de II C
Temperature Class: T1 to T6
For ambient temperature -50°C +40°C (+60°C with a longer stand off)
Stood-off painted terminal enclosure in cast iron
150Ib ANSI Carbon steel flange 2½”
Stainless steel sheathed heating element in stainless steel pocket
Built in pocket for optional sensor, thermostat, or cutout
Watts density: 3.9 W/cm²

Immersion Heater Specification

FPFR Heaters are also standardised with flange ANSI 150 Ib 6, 8, 10, 12, and 14” (output from 6 to 144 kW) – Contact our sales office – 0191 410 4292.

Chromalox FPFR Dimensions

Immersion Heater Product Guide

➡ Add your required temperature class (T1, T2, T3, T4, T5, or T6) at the end of the order code.

Chromalox Order Code	Output	Length ‘X’	Cold ‘NC’	Weight
FPFR 00303/25	3 000 W	675 mm	85 mm	6 kg
FPFR 00503/25	5 000 W	970 mm		8 kg
FPFR 00703/25	7 000 W	1 340 mm		9 kg
FPFR 00903/25	9 000 W	1 610 mm		10 kg

chromalox exf

Chromalox EXF Increased Safety Immersion Heaters

Chromalox EXF range are increased safety immersion heaters which are used to heat fluids within hazardous areas.

Note : The standard range with a watts density of 3.9 W/cm² (range 12 up to 360kW) is also available – Contact our sales team for more information.

On request:
• Standard design on 14” and 16” flanges (output up to 936 kW)
• 300 to 2500 Ib ANSI flanges

Standard immersion heater models with a watt density of 9.3 W/cm²

➡ Add your required temperature class (T1, T2, T3, T4, T5, or T6) at the end of the order code.

Output	Length ‘X’	Flange Size
Output	Length ‘X’	4″	6″	8″	10″
3 kW	340 mm	EXF00303/60	–	–	–
6 kW	340 mm	–	EXF00006/60	–	–
6 kW	500 mm	EXF00603/60	–	–	–
9 kW	420 mm	–	EXF00906/60	–	–
9 kW	660 mm	EXF00903/60	–	–	–
12 kW	500 mm	–	EXF01206/60	–	–
12 kW	830 mm	EXF01203/60	–	–	–
15 kW	575 mm	–	EXF01506/60	–	–
15 kW	980 mm	EXF01503/60	–	–	–
18 kW	660 mm	–	EXF01806/60	–	–
18 kW	1150 mm	EXF01803/60	–	–	–
24 kW	830 mm	–	EXF02406/60	–	–
24 kW	1470 mm	EXF02403/60	–	–	–
27 kW	660 mm	–	EXF02706/60	–	–
30 kW	980 mm	–	EXF03006/60	–	–
30 kW	1795 mm	EXF03003/60	–	–	–
36 kW	1150 mm	–	EXF03606/60	–	–
36 kW	2120 mm	EXF03603/60	–	–	–
45 kW	655 mm	–	–	EXF04515/60	–
45 kW	980 mm	–	EXF04509/60	–	–
48 kW	1470 mm	–	EXF04806/60	–	–
54 kW	1150 mm	–	EXF05409/60	–	–
60 kW	570 mm	–	–	–	EXF06024/60
	975 mm	–	–	EXF06012/60	–
	1795 mm	–	EXF06006/60	–	–
72 kW	825 mm	–	–	–	EXF07218/60
	1145 mm	–	–	EXF07212/60	–
	2120 mm	–	EXF07206/60	–	–
81 kW	505 mm	–	–	–	EXF08127/60

Output	Length ‘X’	6″	8″	10″	12″
90 kW	650 mm	–	–	–	EXF09030/60
	975 mm	–	–	EXF09018/60	–
	1145 mm	–	EXF09015/60	–	–
	1795 mm	EXF09009/60	–	–	–
108 kW	650 mm	–	–	–	EXF10836/60
	1145 mm	–	–	EXF10818/60	–
	2120 mm	EXF10809/60	–	–	–
120 kW	820 mm	–	–	–	EXF12030/60
	975 mm	–	–	EXF12024/60	–
	1790 mm	–	EXF12012/60	–	–
144 kW	820 mm	–	–		EXF14448/60
	1465 mm	–	–	EXF14418/60	–
	2115 mm	–	EXF14412/60	–	–
165 kW	970 mm	–	–	–	EXF16533/60
168 kW	1465 mm	–	–	EXF16821/60	–
180 kW	1140 mm	–	–	–	EXF18030/60
	1790 mm	–	–	EXF18018/60	–
	2115 mm	–	EXF18015/60	–	–
216 kW	1140 mm	–	–	–	EXF21636/60
216 kW	2115 mm	–	–	EXF21618/60	–
240 kW	1460 mm	–	–	–	EXF24030/60
240 kW	1790 mm	–	–	EXF24024/60	–
288 kW	1460 mm	–	–	–	EXF28836/60
288 kW	2115 mm	–	–	EXF28824/60
300 kW	1785 mm	–	–	–	EXF30030/60
324 kW	2115 mm	–	–	EXF32427/60	–
360 kW	2110 mm	–	–	–	EXF36030/60
396 kW	2110 mm	–	–	–	EXF39633/60
432 kW	2110 mm	–	–	–	EXF43236/60

Contact Thorne & Derrick for excellent customer service, competitive quotations and delivery from stock for Chromalox heaters

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