Applications :-
• Thermal Pre-stressing of Turbine Chest Bolts in Electrical Power Generation Plant.
• Pre-stressing Bolts in Machine Housings.
Design: -
Elmatic Bolt Heaters are designed to satisfy the rigorous CEGB.
12/64/00 standard, ensuring optimum life and are designed for 110 volt operation.
Stainless steel sheathed tubular sheathed wire heating elements are fitted inside a stainless steel outer tube and sintered into position.
This provides a good thermal path and high resistance to shock loads.
A robust stainless steel terminal box with substantial handle is fitted, which includes a Harvey Hubbell Inlet.
Sheath Material |
|
|
Insulation Material |
|
Magnesium Oxide
|
Heater Material |
|
NiCr
|
Standard Diameters |
|
.625" .734" .875" 1.0" 1.1875" 1.375" 1.438"
|
Terminations |
|
30A 60A DR 100A Harvey Hubbell Inlet
3m Hofr Cable |
Voltage Supply |
|
110V (24 - 240V available upon request) |
Maximum Watts Density |
|
72 Watts/sq" |
| Maximum Temperature |
|
750°C |
| Resistance Tolerance |
|
+/- 7.5% |
Advantages and Options
• Sintered design resists damage to element if handled when hot. Sintered design provides an even heat distribution around the heater diameter.
• Non standard diameters and lengths are readily accommodated.
• The cold and hot length can be varied during manufacture to suit the cap nut and bolt.
• Elmatic offer flexible approach to the electrical connection.
• Inlets or cables to customer requirements are available and our fabrication workshop is capable of a vast range of terminal box options.
• Replacement blades are available if your Elmatic Bolt Heater has a serviceable terminal box and connection.
• Our blades are completely interchangeable with those previously manufactured by Redring Industrial. |
