Typical applications where the maximum temperature must be limited to avoid product damage include oil or resin heating, fermentation and food processing.
Applications where it is essential to be able to remove the element without emptying the tank include shipboard tanks,sullage and waste water treatment tanks.
Grimwod Withdrawable heaters are also used to replace ceramic bobbin heaters where they are typically more robust in most applications.
All Grimwood withdrawable units consist of three U shaped elements each typically rated at 240V. They may therefore be wired for 415/240V star connection or 240V single phase. Special voltages are available and can be made to order.
The standard series comprises ten lengths or pentrations, with three wattages in each size to give watts densities of 7.75, 15.5 or 31.0kW/m2 which are suitable for most fluids. High watts densities of up to 42kW/m2 are available for specific applications.
The high nickel alloy heaters are designed to insert into a DN50 (2"NB) tubular sheath. Sheaths can either be provided by the user to suit their application or select a Grimwood sheath available in carbon steel, copper and stainless steel.
The selection of the most appropriate wattage, watts density and sheath material is highly application specific and the factory should be consulted for guidance if in doubt.
For higher wattages or where space is limited, multiple elements may be required to achive the required Watts density.
If your application cannot be satisfied from the standard range, Grimwood can quote for your particular need.