High pres­sure pipe testing made eas­ier

DEMM Engineering & Manufacturing - - PUMPS AND VALVES - Go to demm.co.nz/ en­quiry quote: D140720

Lo­cat­ing leaks and prooftest­ing gas and oil pipe­lines is easy with portable hy­dro­static testers. Aus­tralian Pump In­dus­tries, com­monly known as Aussie Pumps, make a range of hy­dro­static test units with f lows to 150 litres a minute and pres­sures up to 500bar (7300psi).

Gas and oil pipe­lines must be struc­turally sound and able to with­stand their max­i­mum op­er­at­ing pres­sure. Testing is done by fill­ing the pipes with wa­ter and pump­ing the pres­sure up higher than the max­i­mum al­low­able op­er­at­ing level. The pres­sure is then held for up to eight hours to es­tab­lish the pipe’s in­tegrity.

In a ma­jor breakthrough, the firm can of­fer testing ca­pa­bil­i­ties and is cur­rently de­vel­op­ing units to test to 750bar (10,000psi).

For high-pres­sure ap­pli­ca­tions, as re­quired for gas pipe­lines, the heart of the sys­tem is a ‘Big Berty’ Ber­tolini pump. These triplex pumps are slow speed and de­signed for con­tin­u­ous run­ning ap­pli­ca­tions.

Aussie hy­dro­static testers are fit­ted with an ad­justable reg­u­la­tor that en­ables the op­er­a­tor to set the re­quired pres­sure. They are equipped with a dou­ble lock off valve sys­tem and two pres­sure gauges. This en­ables the op­er­a­tor to iso­late the pump from the job and check the line pres­sure is main­tained.

The units are trol­ley mounted for ease of move­ment on site. The stan­dard range uses top qual­ity in­dus­trial diesel engines. The range also in­cludes petrol, hy­draulic, elec­tric and f lame-proof elec­tric drive units.

Ma­chines with pres­sures of up to 40 bar are com­monly used for testing wa­ter sup­ply lines and sim­i­lar rel­a­tively low pres­sure sys­tems. Aussie Pumps use rugged di­aphragm style pos­i­tive dis­place­ment pumps to pro­vide pres­sure and f low for these ap­pli­ca­tions.

Hy­dro­static testing is also ef­fec­tive in proof testing pumps, valves, pres­sure ves­sels and other liq­uid sys­tem prod­ucts. For ex­am­ple, the use of hy­dro­static testers is widely em­ployed by Aussie Pumps for testing pump bod­ies for leaks af­ter as­sem­bly.

“Our hy­dro­static testers are now work­ing in the Mid­dle East, In­done­sia and right through out Aus­tralia’s wa­ter, oil and gas in­dus­tries,” says Aus­tralian Pump In­dus­tries’ Brad Far­ru­gia. “The units are sim­ple to set up and easy to use. Reg­u­lar testing can de­tect dan­ger­ous leaks that are both costly and can lead to en­vi­ron­men­tal con­tam­i­na­tion.”

Aus­tralian Pump In­dus­tries’ portable hy­dro­static testers can pres­sure test pipe work to 500bar (7300psi) while be­ing sim­ple to set and easy to use.

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