*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.
For very high temperature applications (say, over 200 Â°C.), general practice is to eliminate usage of any type of elastomers in seals; in such cases, all-metal seals are used in the form of metallic bellows. Other Body Material: The commonest material for seal body parts is Stainless Steels (Grades 304 or 316). Cheaper than these are sundry metals like brasses/bronzes/cast-irons/steels/etc. Springs, Grub Screws, Drive Pins, Drive Screws, etc., are all in St.Steels.