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Two sealing products that are capable of operating under harsh conditions have been recently released by John Crane. The first is a non-contacting, dry-running mechanical seal for use in cryogenic applications. Called the Type 285, it features a floating carbon stator, stationary edge-welded metal bellows and the company's patented spiral-
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## Gland packing range added to catalogue Farnell has added its Klinger range of gland packings to its Industrial catalogue. The Klinger range includes seven types of gland packing material and is available in sizes to suit most pump and valve equipment. Klinger's q]cpe 10 gland packing is highl
The purpose of this invention is to provide an improve threaded pipe joint for the oil and gas industry. This is achieved by the contact between pin and coupling on the bottom diameter of the pin thread and the peak diameter of the coupling thread. The thread has an asymmetric trapezoidal shape. The