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Mobile pressure testing units

Technique for hydraulic tests of heating system

The Technology

After blocking the part of a heating main, each pipe is connected to the trunk pump. Then the water from one pipeline is pumped with additional pressure to another one. The drop in pressure indicates a possible leak.

PSM has engineered a special offer for a heating system companies: mobile pressure testing units for strength and leakage testing of pipes before and after heating season.

Mobile pressure testing units allows you to test small sections of the heating main and shortens the period of the seasonal shutdowns of hot water up to 3 days.

There is no need to raise the pressure on the heat sources and test all the mains simultaneously. Mobile pressure testing units makes hydraulic tests of heating system more effective, prompt and safe.

Design of Mobile pressure testing units

The metal canopy protects the unit from precipitation and mechanical damage. It is provided with the side doors for the quick access to the main components. The canopy has special holders to move the metal pipe with a diameter of 20 cm and a length of 10 m.

A bypass line is equipped with a electric valve. It provides gradual increase of pressure during the hydraulic pressure testing.

The control system is made on basis of two microprocessor-based controllers. It is responsible for fully autonomous operation of the unit: it increases and holds the pressure, determines the breakthrough of the pipeline and shuts down the unit in case of an accident. All data is transmitted to a computer by wi-fi and allow you to monitor the work of the mobile pressure testing unit remotely.

Diesel engine +centrifugal sectional pump
Main elements of the unit are joined by the PTO. It allows you to disconnect the pump and operate at «idle» - for example, for warming up the engine before operating.

The trailer on the two-axle chassis allows transporting the unit by car of any kind to any part of the heating system.

The pressure and suction lines work effectively thanks to built-in sensors and pressure regulators.

Works in any weather conditions::

Temperature -10° to +40°

Humidity > 75%

Software of the mobile pressure testing unit visualizes the data in charts:
  • the temperature of the water
  • water consumption
  • the pressure on the inlet and outlet
The mobile pressure testing unit increases the quality of the tests by 40% and reduces the probability of accidents by 30%.

The unit’s capacities

The unit quickly locates breakouts

The mobile pressure testing unit tests small parts of the heating system in sequence. It is quickly to find a breakthrough and there is no need to stop all work at once.

It does not require to stop mass water supply

During the tests there is no need to stop the water supply to the whole areas of the city. You can carry out hydraulic testing of pipes avoiding any inconvenience to neighbouring areas.

It reduces the time of the compression works

Working hours are not spent on maintaining the pressure, bypassing the entire heating system and numerous checkpoints. As a consequence, the period of cessation of hot water supply is reduced from 14 to 3 days.

It extends the life of equipment of fixed stations

The mobile pressure testing unit tests more carefully taking care about infrastructure. It is particularly important in case of the large wear of heating mains.

It guarantees safety tests

It reduces the number of breaks and accidents, the risk of injury and damage to property both during and between tests. Regular pressure testing of the heating main with the help of the mobile pressure testing units allows you to keep heating networks in working condition.

Lineup

The lineup of the mobile pressure testing units includes 5 types, which differ on flow and maximum pressure provided. This broad range allows to choose the equipment for pipes of any configuration and status.

Model Engine Flow, m3/h Maximum test pressure, ATM
AOMC-16 YAMZ/MMZ 10-100 16
AOMC-20 YAMZ/MMZ 10-200 20
AOMC-25 YAMZ/MMZ 10-200 25
AOMC-30 YAMZ/MMZ 20-250 30
AOMC-40 TMZ 20-250 40

It is possible to use Doosan (South Korea) or Volvo Penta (Sweden) engines.


Details

Pressure gauge

Pressure gauge

Duplicate pressure gauge

Duplicate pressure gauge

The closure for the suction line with electric drive

The closure for the suction line with electric drive

The filter and water drain

The filter and water drain

The flow meter with the panel of flow readings

The flow meter with the panel of flow readings

The check valve to protect against the water hammer and the valve to disconnect from the  heating main

The check valve to protect against the water hammer and the valve to disconnect from the heating main

Rings for attaching a sling

Rings for attaching a sling

Blinds of the radiator

Blinds of the radiator

The muffler with a gas-jet system of filling the pump

The muffler with a gas-jet system of filling the pump

External led lighting with moisture and vibration protection

External led lighting with moisture and vibration protection

Tool box

Tool box

Anti-vibration supports

Anti-vibration supports

The mobile pressure testing units at work

Largest owners:

T Plus (KES-Holding) - 40 units
Moscow heat distribution company -30 units
MP Heating (Obninsk) - 5 units
Ryazan generation company - 5 units
10 000 kilometers of heating systems are tested with the help of mobile pressure testing units
2010 The first samples were produced in. For the first three years, PSM has created 32 similar units.
16 These units are used in 16 cities of Russia, among them Moscow, Ivanovo, Nizhny Novgorod, Orenburg, Izhevsk, Vladimir, Kirov, Ekaterinburg

Russia-1: Smolensk meets a miracle machine for pressure testing

The portal KU66.RU: Hydraulic tests of heating systems

Russia-1 Orenburg: PSM units guard hot water

Russia-1 Ivanovo: New machine avoid long outages of hot water

The portal uralinform.ru: Ekaterinburg can cancel hydraulic tests

Information-analytical portal «JustMedia» (Ekaterinburg): Pilot tests of heating mains with the use of mobile unit for pressure testing