Lloyd's Register Type Approval will boost the design-in of Parker's unique tube connector in marine and offshore equipment

The certification covers 316 stainless steel versions of Phastite connectors for use on tubing with outside diameters up to one inch/25 mm.

Phastite introduces some highly desirable performance attributes for higher pressure marine and offshore applications, compared with the commonly-used technologies of welded or cone-and-thread connections, says Parker's Jim Breeze. Advantages include much faster assembly, without any need for 'hot work' permits, and a very high tolerance of vibration. Lloyds Register Type Approval is a very important influence for offshore designers and we anticipate that it will open the doors to many new applications for Phastite.

The Phastite connector has introduced a very simple compression assembly concept for high pressure connections up to 1,379 bar (20,000 PSI) that can greatly reduce installation costs. 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. This assembly operation is performed by a simple handheld hydraulic tool, and takes a few seconds. The tool requires no skill to use, and assures users of right-first-time connections.

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 unique 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.