High Temperature Cam-Slide
Standard line blinds are normally rated to a maximum temperature of 327 degrees C. Fetterolf has designed fast acting line blind that can extend this range to 800 degrees C (1,427 F) and higher on request.
High Temperature Design
The Fetterolf High Temperature Cam-Slide is a unique development that enables the fast acting line blind to withstand temperature up to 800 degrees C. The Cam-Slide has been completely re-designed to handle these extreme temperatures. It has the following key features:
- Reinforced and reversible Cam mechanism
- Bellows/expansion joint pipe seal design
- Graphite spiral wound gaskets for the face seals
- Special materials for elevated temperatures
High temperature line blinds are highly engineered products that must take account of the operating temperature at pressure in order to avoid deflection, correct material selection in order to avoid stress or creep rupture as well as the correct wall thickness in order to meet ASME code.
Drawing
The above drawings show the High Temperature design which incorporates a bellows for the internal seal, a reinforced cam mechanism, and a body with thicker walls; necessary to avoid body deflection, stress, and ensure a reliable seal. Typically the face seals are special high temperature gaskets.
Features
- Temperature: Standard product range to 600 degrees C (1,112 degrees F)
- Size - 1 to 52 inches
- Pressure class - ASME 150# (or to conditions)
- Special design to 800 degrees C (1,427 degrees F)
- Materials are temperature and pressure dependent but include carbon Steel, Stainless Steel, Inconel and special high temperature stainless alloys
- Refractory lining possible
- Fire Safe Design
Options
- A broad range of sealing rings to match the specific medium and operating conditions including the most common – Viton, Kalrez, Aflas, EPR/EPDM, Silicone, etc.
- Stem and dust covers for powder applications or dusty operating environments
- Lock out devices
- Pneumatic, electric or manual actuation
- Filter, rupture disc or sieve integration in the spectacle plate
- Drain, vent and purge connections
- Special anti corrosive or medium driven coatings or linings (such as Sermetal, Epoxy, PFA or ceramics)
- Reinforced designs for challenging operating environments
