Alexander - Gaskets
Sealing technology is another critical but commonly overlooked part of a given pipeline system. This product comes in variety of guises from the more standard Ring Type Joint (“RTJ”) and Spiral Wound Gasket to the specially machined product. The force applied by the tightened fasteners in the installed flange system not only hold the gasket(s) in place but as long as tensioned correctly allow the gasket to perform within its optimum performance parameters.
Gaskets look to perform in an extreme range of environments from high temperature to high pressure and as such can come in a wide range of shapes, materials and have special requirements dependent upon final application.
RTJ standard style gaskets can be offered in accordance with standards such as API and B16.20. Commonly they come two main forms, octagonal and oval. RTJ’s applications go hand in hand with specially grooved flanges. Other forms on offer are “BX”, “RX”, “SRX” and “SBX”
Spiral Wound Gaskets are composed of a variety of soft metallic filler materials, metal wire and an outer guidance ring. They soft filler and metal wire are “wound” with these alternate materials and come is range of types.
As a lot of Alexander Comley finished, flanged product goes into critical, often hazardous petrochemical environments other sealing technology options are also on offer, namely Insulation sets, commonly Type “D”, “E” and “F”