BARNSTAPLE, UK -- Lloyd's Register has granted Type Approval to the high-pressure Phastite tube connection system developed by the instrumentation products division of Parker Hannifin.
The certification covers 316 stainless steel versions of Phastite connectors for use on tubing with outside diameters up to 1 in./25 mm.
The Phastite connector has introduced a simple compression assembly concept for high pressure connections up to 1,379 bar (20,000 psi) that can reduce installation costs, Parker says.
Phastite fittings are supplied as one-piece components. To make a joint, all that's required is to slide the fitting onto the tube end, and then push the collar along the fitting body until it reaches a dead stop, Parker explains. This assembly operation is performed by a handheld hydraulic tool, and takes a few seconds.
Phastite's sealing mechanism is based on a series of defined internal ridges that create a secure seal by radial compression, without weakening the tubing surface. The ridges effectively grip in a way that retains all of the tubing's strength.
These profiles also make the fitting particularly suitable for vibration prone environments. Parker's sealing system has also been designed using a pressure safety factor rating of at least 4:1, the same level as used on the company's lower-pressure compression tube fittings.