Features

1. Type SFA has the shell and jacket-side tubesheets entirely glass-lined, the baffles are made of PTFE, the tubes of silicon carbide and the tube side is made of stainless steel. The product is introduced into the jacket side, the tube side is supplied with service fluid. 
   
   The space is equipped with a drainage hole in the lower part to enable a visual check for the presence of leaks, but it can also be pressurised or connected to an automatic control system when particularly dangerous products are being used. 
   
   SiC Tubes

   • The tubes are made of Hexoloy SA silicon carbide by Saint-Gobain Ceramics.

   • They are approved for use by: WRC, Water Byelaws Scheme (UK), DVGW Ministry of Health (D), FDA (USA).

   • They have high thermal conductivity, double that of tantalum, 5 times that of stainless steel, 10 times that of Hastelloy and 15 times that of glass. 

   • Silicon carbide has an excellent resistance to corrosion with practically all chemical substances up to 200°C.

   • Silicon carbide has very high hardness - 50% greater than tungsten carbide, and it is therefore extremely resistant to wear. It is also completely impervious and therefore offers total impermeability at high temperatures and pressures.

Technical Data

Design Data

• Pressure      : - 1 / +6 bar   -    (FV/87psig)

• Temperature  : -25 / +200 °C  (-13°F to +392°F )

Design Codes

• VSR/AD-Merkblätter/ASME VIII div.1/CE stamp

• PED 97/23/EC module G  cat. IV  

Glass-Lining:

• Vessel G2208 dark blue, light-blue or white

• Sigma glass anti-static electrically conductive glass in blue

• Phi glass thermally conductive glass in medium blue

More specific data can also be obtained from our laboratory.
Glass-Lining controls: as per DIN 28063

• Visual control 

• Thickness control

• Statiflux

• Spark Test as per ISO 2746 after Glass-Lining: 20.000V and before shipping: 12.000V