Gas Bottle Heating
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Industrial Gas Cylinder Heating Many laboratory and industrial processes require a constant flow of gas to be delivered from pressurised cylinders containing gas in liquid phase. If there is a high utilisation rate, frosting can occur on the surface of the cylinder and flow rates can be adversely affected. Our uniform and insulated heating solutions can prevent this phenomenon and restore stability to the flow rate. This is particularly important when using calibration gases where repeatability is vital. (Separate pressure monitoring systems should always be in place to meet health and safety requirements.) LMK Thermosafe Ltd. have been manufacturing robust and reliable industrial heaters for safe and hazardous area use for over 30 years. Our standard product range includes a selection of flexible heating jackets for pressurised gas cylinders. These have been designed with a variety of control options for both safe and hazardous “Ex” areas where there is risk of explosion. We manufacture to CE, ATEX/IECEx, UL and CSA standards in our ISO9001 certified factories in the UK. As well as standard flexible heating jackets (detailed below) for the popular “K” sized cylinders, we can also design jackets for most cylinder sizes in both safe and hazardous areas, right up to several thousand litre capacity horizontal cylinders. These can be fitted with a variety of power and temperature control options, including our latest ATEX/IECEx patented “ProxATEX” digital controller, offering precise temperature measurement, multiple heating program adjustment options and user access control using secure NFC cards. Product Specification for stock “K” size cylinder flexible heating jackets Adjustable length: 680-830mm | Overall Height: 1050mm | Power supply: 110v or 230v (50/60Hz ac) ▪ HHG (safe area): 450W with 0-90C adjustable thermostat (-5 to 40C range & digital options also available) ▪ IHF/G/T4 (hazardous area): 100W, self-limiting to 30C above ambient ▪ IHF-R/G/T4 (hazardous area): 100W, 0-50C temperature regulator ▪ IHF-R/G/T3 (hazardous area): 285W, 0-85C temperature regulator

Example of large “skid based” gas cylinder requiring surface area heating to stabilise flow rates when used on site. Easily fitted, with adjustable thermostat (as shown) or fixed internal thermostat. Insulated end caps available as an option for severe ambient temperatures. Heavy duty pvc covers also available for outdoor use. Outdoor Installation example in North America with C1Z1 heating jackets and controllers Cylinder itself is protected from weather by a canopy, giving sufficient protection to jackets as well. Outdoor site is rated as potentially explosive due to other processes.