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Polsafe

The Polsafe Gas Distribution System is a complete range of pipes and fittings for gas distribution. Polsafe pipes and fittings are made of Ductile PVC.

The Polsafe Gas Distribution System has been approved for system pressures up to 200 mBar, however higher system pressures are possible.

The Polsafe Gas Distribution System is well known for its patented self-sealing gas valve and the possibility of making house connections and repairs on live distribution mains.

The Polsafe Gas Distribution System consists of a complete assortment of Ductile PVC pipe, rubber ring socket couplers, other rubber ring socket fittings and spigot fittings for distribution mains, with diameters from 50 up to 315mm. For service lines a complete range of PE80 pipe and Ductile PVC tensile tight couplers is available in diameters 25 up to 40mm. A service line connection on a main Polsafe distribution line can be realised by means of a Polsafe saddle and a Polsafe saddle tee. A balloon entry on a Polsafe distribution main can be made with a Polsafe saddle and a Polsafe saddle adapter. A by-pass can be realised easily with Polsafe components.

All Polsafe Gas Distribution System components are executed in yellow, RAL1024.

For Polsafe Gas Distribution Systems professional saddle tapping tools and balloon positioning equipment is available.

Polsafe Gas Distribution System components are Gastec QA approved. Gastec is the Dutch Centre for Gas Technology.

Polsafe stands for:

    		• high tech simplicity
    		• simple pipe installation with pipe lengths and socket couplers
    		• gas free assembly on live mains
    		• simple saddle mounting
    		• self-clamping lower saddle
    		• simple mounting of saddle tees and saddle adapters
    		• simple saddle tapping procedure
    		• removable cutter
    		• simple service line installation
    		• tensile tight connector on saddle tees
    		• tensile tight service line couplers
    		• simple balloon positioning
    		• Ductile PVC components
    		• Nitrile Butadiene Rubber (NBR) seals
    		• Gastec QA approved products



    Ductile PVC
    Polsafe pipes and fittings are made of Ductile PVC. Ductile PVC is a mixture of PVC and modified PE. The modified PE gives the material a high ductility. Ductile PVC's strength and stiffness are still at a high level, sufficient to guarantee a good performance of the rubber ring socket fittings and sufficient to resist ground loads adequately. Stiffness for Ductile PVC pipe SDR41 is 3,5 kN/mm and for Ductile PVC pipe SDR33 6,0 kN/mm. Recent studies have shown that under standard installation conditions these Ductile PVC pipes will show less than 5% deflection in the long run.

    Due to its high ductility Ductile PVC has a higher impact resistance and is resistant to crazing and cracking initiated by aggressive constituents in the gas. Ductile PVC is insensitive to notches due to its high fracture toughness. Therefore premature catastrophic failures are very unlikely to occur. Recent studies at Gastec, the Dutch Centre for Gas Technology, have shown that Ductile PVC will not show propagating failures up to a gas pressure of more than 4 Bar.


    Rubber Seals
    For the rubber ring socket fittings a special multi-lipped rubber ring has been developed, suitable to compensate long term pipe deformation. This rubber ring sealing concept has been used from the early 60's and has proved to be very successful. Rubber rings in Polsafe socket fittings and also other rubber seals in Polsafe saddles and other components are made of Nitrile Butadiene Rubber (NBR). This rubber type is very suitable for use with natural gas and gas condensate and is covered by various standards, e.g. EN682 type G.


    For more detailed product and installation information please download our Polsafe brochure (272 kb).







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    Pipelife International GmbH
    Triester Strasse 14
    2351 Wr. Neudorf / Austria

    tel: +43.2236.43939-0
    fax: +43.2236.43939-6

    » info@pipelife.com