Petrochemical Industry

PTFE/PFA lined piping systems have been used successfully for many years in the petrochemical industry. Traditionally they have been used in situations where the material being handled is too corrosive to be easily handled using either carbon or stainless steel pipework, although the non-stick properties of the linings should not be overlooked where extremely sticky materials are being handled.

Since a good proportion of the fluids handled on a petrochemical plant have the potential to charge statically, as well as being potentially flammable/explosive, static build up inside PTFE/PFA lined pipework is a potential concern when handling such fluids. To eliminate this issue, CRP offers a complete range of products lined in static dissipating PTFE/PFA which allow any charge that would otherwise build up on the inside of the lined pipework to pass through the liner to the outer steel housing. An obvious corollary to this is that the satisfactory earth bonding of such lined piping systems is critical, since failure to do this would simply move the problem of static build up from one place to another. Full details of CRP’s range of products to combat static build up can be found here. A fuller discussion of the issues associated with static build up and its associated hazards can be found here.

As with all global industries, competition is becoming increasingly fierce, and the petrochemical industry is no exception to this rule, with all major players looking at ways to cut costs without compromising safety and product quality. To this end, in recent years, several major petrochemical companies have been stripping out pipework that has traditionally been made of unlined carbon steel, but which is replaced every 3-5 years to cope with internal corrosion, and replaced it with PTFE/PFA lined pipework, due to the reduced lifetime cost benefits that these systems bring.

One factor that must be borne in mind when considering the potential use of PTFE/PFA lined piping systems in the petrochemical industry is fire. Many, if not most, petrochemicals are inherently flammable. PTFE/PFA lined piping systems are not, nor can they be made, fireproof. Therefore, when considering their use on a petrochemical plant, it must be assumed that in the event of such a system becoming engulfed in fire, all joint integrity will be lost.

Contact Details

Corrosion Resistant Products Ltd
Todmorden Road
OL15 9EG

Phone: +44(0)1706 756400
Fax: +44(0)1706 379567