RFM Control Pins
RFM® control pins are a unique patented technology from Pyrotek. Traditionally, control pins are manufactured as solid rods from various materials. Unless thorough preheating is applied, the control pin can become a heat sink and sometimes lead to problems at start up. Because the RFM control pin is manufactured as a tube, the material mass is greatly reduced. In addition, the control pin further benefits from the unique thin wall properties offered by RFM technology.
To provide as much strength and security as possible, the RFM control pin benefits from a mid-wall reinforcement of helically wound metallic wire. This reinforcement guards against breakage or separation. The metallic wire has been tested against oxidizing atmospheres to ensure properties are retained. To maintain consistent flow and sealing properties, the control pin is fitted with a ceramic tip. The ceramic tip offers excellent nonwetting properties and is resistant to corundum growth. The tip is manufactured to customer specifications and fixed by both adhesive and mechanical means.
Advantages
- Tubular construction lowers total pin
mass, reducing the chance of metal to
freeze during start-up.
- Integrated safety wire minimizes pin
breakage / separation.
- Off-line pre-heating from 302–482°F
(150–250°C) is all that is necessary.
- Integrated ceramic tip ensures repeatable
flow characteristics and closure.
- Material’s natural non-wetting
characteristics ease cleaning.
- Has excellent thermal shock and thermal
cycling properties.
- RFM material promotes high life
expectancy in comparison to traditional
materials.
- Available in any reasonable geometry.
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