Type 9VJ22: Antifreeze flexible jacket heaters for metal drums and 1000 liter IBC

Main Features

Flexible jacket heaters are used for antifreeze protection, reheating, temperature stabilization, to reduce viscosity or to melt soaps, animal or vegetable fats, varnishes, oils, food or chemical products.

This series of jacket heaters is the most efficient solution for heating glass or plastic containers. They are available for containers of 110L (30 US gallons), 210L (55US gallons) and 1000 liters IBC. The jacket heater covers the entire surface and is surmounted by a soft collar “a scarf” preventing it from sliding down. They can be made with two power levels (0.05W / cm² and 0.1W / cm²) and one 20mm thickness of insulation to cover antifreeze applications even for very low temperatures. See these applications described in the technical introduction. They can also simply be used to maintain positive temperature of liquids.

In these models their surface temperature is limited to 65°C. When they are used with an insulated lid and an insulated pedestal, their energetic efficiency can rise 90%

Technical characteristics

The heating element of the flexible jacket heater consists of a network of silicone insulated heating wires shielded by a metal braid, taken under a cover sewn in PU and Teflon coated polyester fabric. A 20 mm thick, temperature-resistant NBR-PVC foam insulation is inserted between the heating network and the outer wall. This insulating foam has an insulation coefficient

(Lambda λ) of 0.039W/m.K, and this makes it possible to divide the energy losses by 3 compared to jacket heaters insulated with mineral wool or carbon fiber felt of the same thickness. Four adjustable metal buckles allow quick assembly and disassembly and efficient clamping on the container. Their mechanical strength is exceptional.

Fabric covering:

– Internal heating face: Teflon coated polyester fabric,

– External side: waterproof PU coated polyester fabric.

Thermal insulation:

NBR-PVC foam, with closed cells and high temperature resistance, thickness 20mm.

Heating element:

Silicon insulated heating wire with metal braid providing mechanical protection against puncturing and good grounding.

Temperature control:

By fixed setting bimetallic thermostat, opens at 9°C, closes at 5°C, mounted on the connection box, and measuring the ambient temperature. Two pilot lamps indicate the presence of voltage and the heating function. A temperature limiter is incorporated in the heating net to limit the surface temperature to 65°C.

Connection cable:

Insulated rubber power supply cable, for industrial environments, 3 x 1mm² length 3m, Euro plug. (3×1.5mm² for the IBC model). UL plug on request.

Mounting on containers:

These jacket heaters feature nylon straps with quick-release adjustable buckles for adjustment to the diameter of the container, and a soft fabric collar without thermal insulation named scarf. This flexible scarf can be used to hold in place an insulating lid.


– 0.135W/cm² surface load for fast heating. (Not available for IBC in this temperature control version). See technical introduction.

– Power supply 110/115V

– Power cord with industrial plug 2-pole + earth 16A CEE (IEC60309)

– Lids and insulating pedestals: see the accessories pages.

Compliance with standards: CE compliant. TUV certificate for EEC Low Voltage Directive (LVD) and EMC directive 2004/108/EC, and CE marked accordingly.

Main references (see the technical introduction for the liquids heating time)

References* Volume, US gallons Volume,



(mm  ± 12 ; Inch ± ½”)




Flat length



Scarf C

(mm/ inch)




Watt Voltage


9VJ22731558550HG 30 110 460 (18.1) 730 (28.8) 1550 (61) 100 (3.9) 0,05 (0.32) 550 220/240
9VJ22881898880HG 55 210 585 (23) 880 (34.6) 1890 (74.4) 100 (3.9) 0,05 (0.32) 880 220/240
9VJ22A04398B205G 264 1000 1000 x 1200

(39.4 x 47.3)

1000 (39.4) 4390 (172.8) 100 (3.9) 0,05 (0.32) 2200 220/240
9VJ22731558A10HG 30 110 460 (18.1) 730 (28.8) 1550 (61) 100 (3.9) 0,1 (0.64) 1100 220/240
9VJ22881898A66HG 55 210 585 (23) 880 (34.6) 1890 (74.4) 100 (3.9) 0,1 (0.64) 1660 220/240

*For these products supplied with UL plug and not Euro plug, replace the 15th character by X. 

** In this temperature control version 0.1W/cm² and 0.135W/cm² are not available for IBC size



2D&3D Drawing