MECHANICAL SEAL DESIGN & REPAIR For CEMENT & ASPHALT INDUSTRY Custom Design & Repair Type 8B high pressure pusher seal upgraded to use Silicon Carbide face EV05 single spring cartridge seal 4.00" Lightnin Mixer Seal converted from single to double seal 150mm Netzsch Beadmill seal repaired & pressure tested to 100 psi Mechanical Seals EV04 EV05 EV07 EV10 EV17 Assembly Seals R2 R4 R5 Custom Design, Engineering Services & Repair Custom Designed Seals Custom Engineering Mechanical Seal Repair Other Products Gaskets Mechanical Packing Thermofab Brochure All Robco mechanical seals are manufactured, assembled and tested in America.