Profile: John Crane Mechanical Seals supply engineered sealing systems. We provide high quality welded metal bellows seals, focused sealing and lubrication products to serve the pulp and paper market. We produce flat gaskets and live-load packing for valves. Our pump and specialty mixer seals provide pharmaceutical manufacturers with high performance, clean-in-place solutions for their critical applications. We offer automotive water pump seals to automobile and heavy equipment engine manufacturers.