COLOSSUS CF28 Cartridge Seal for Top-Entry Mixers and Agitators (DIN 28138)

Cartridge seal for top-drive mixers and agitators, with an integrated structure for simple installation. Vessel flange connection dimensions meet DIN 28138 and the shaft sleeve meets DIN 28154. Four versions: CF28 single seal without bearing, CF28L single seal with bearing, CF28D double seal without bearing and CF28LD double seal with bearing.

Key features

• Integrated cartridge structure, easy installation
• Flange to DIN 28138, shaft sleeve to DIN 28154
• Multiple springs kept out of the medium, for corrosive media
• Unbalanced design that runs under negative pressure, back pressure and vacuum
• Optional bearing assembly to absorb shaft deflection
• Combined PTFE and elastomer secondary seal on the product side
• Optional cooling flange or cooling jacket

Technical data

Materials

• Seal faces: Graphite or resin-impregnated graphite against silicon carbide or tungsten carbide
• Springs: Cr-Ni steel or Cr-Ni-Mo steel
• Metal parts: Cr-Ni steel or Cr-Ni-Mo steel
• Secondary seals: FKM, PTFE-encapsulated FKM or FFKM

Other material combinations are available on request for specific media.

Applications

• Oil and chemical reactors
• Pharmaceutical
• Food
• Metallurgy
• Water treatment

Standards

Reference standards listed by the manufacturer: HG/T 2269, DIN 28138, DIN 28154. Certificates and test reports are provided with the quotation where applicable.

Supplied on quotation and configured to your requirements (size, materials, operating conditions). Manufacturer data sheet and dimension tables available on request.