Protective element from sludge

The protective element is installed above the check valve grille.

When the pump stops, the sludge settles on the PM protective element, which traps particles of any geometry, so that the sludge does not enter inside the valve and does not violate its tightness.

In the process of pumping and starting the engine after stopping, the liquid containing impurities freely washes the protective element and washes out the deposited sludge from it, completely cleaning the protective element, which rises under the pressure of the medium, which becomes possible due to the unique property of PM - low hydraulic resistance and, as well as specific umbrella shape, which allows you to clear the so-called "dead zone".

And a special oleophobic coating of the element of our own design ensures the free passage of an oil-containing medium and prevents the deposition of heavy oil components - asphaltenes, resins and paraffins - on the surface of the element.

The simplicity of the design allows you to upgrade the existing stock of equipment. PM material can be made with different filtration fineness from 5 to 500 micrometers.

The use of a protective element of PM Material increases the reliability of the valve and associated equipment. The operating time of wells in the complicated fund and the overhaul period of the ESP are increasing.

• Easily integrated into various types of non-return valve systems;

• Repeatedly involving the work of the valve pair;

• Can be produced with the required fineness of filtration.

Field tests of the upgraded valves were carried out at the fields of NK Rosneft and other leading oil companies.

Currently, the operating time of most of the upgraded check valves exceeds 700 days.