Sentry’s basic adapters allow for flanges of different sizes and/or pressure ranges to be connected together. They can be manufactured in almost any combination of known API flange sizes and/or API pressure ranges. And can be flanged, studded, clamp hub or a combination of these designs.
Are available in innumerable types, and pressure ranges
Do not have a controlled seal bore
Do not utilize ports for hydraulic, power supply or instrumentation
They do not allow for a pipe string to be suspended