*Offer valid 12/26/16-12/30/16 while supplies last at participating Hallmark Gold Crown stores in the U.S.A. and at Hallmark.com. Discount will be taken on equal or lesser-valued item. Not valid on past purchases. Hallmark.com orders require U.S. billing and shipping addresses.
Request a Quote. All Seals stocks virtually every seal product you need in virtually every material. This includes a full complement of rubber, machined plastics and standard materials. As you can read in this sectionâs pages, selecting the right material for a seal is crucial. We offer selection guidance in these pages, however, we also encourage you to contact our expert staff for questions and recommendations.
Materials. 1  Externals (head, casing) â cast iron, ductile iron, steel, and stainless steel. 2  Vane, pushrods â carbon graphite, PEEK. 3  End plates â carbon graphite. 4  Shaft seal â component mechanical seals, industry-standard cartridge mechanical seals, and * magnetically driven pumps.