Produktai skirti gali (3)

Villina-VS1-М, Villina-GNVC-K and Villina-GNGC-K type centrifugal canned pump units with combined seals are widely used in modern gas industries, petrochemical and petroleum refining industries. They are designed for transiting neutral, corrosive, toxic, as well as explosive and flammable liquids in stationary conditions, the vapors of which can form explosive mixtures with air. For such conditions, mechanical seals with operating temperatures up to 425°C of well-known companies are used, such as: OOO NPC ANOD, JSC TREM ENGINEERING, UNICHIMTEK Group of Companies and others, as well as permanent magnets (SmCo) with operating temperatures up to 450°C. Villina type units are made in three versions as regards the spatial location of the pump rotor: vertical ground-level (Villina-VS1-M) - the pumped liquid is supplied to the pump part of the unit through a suction pipe located radially to the pump rotor. The unit consists of a pump part, a device Temperature of the pumped fluid:-50°С to +400°С

Horizontal canned pumps with welded bodies (Villina-GNGC) are designed for transit in stationary conditions of neutral, corrosive, toxic, as well as explosive and fire hazardous liquids, the vapors of which can form explosive mixtures with air. These pumps are used in petrochemical, petroleum refining and other industries. single-stage or multi-stage version of the unit design (increased discharge pressure, in contrast to back pull-out pumps); high efficiency of the impellers; a possibility to pump contaminated liquids with 100% tightness (for pumping units with combined seals); Temperature of the pumped fluid: up to +420°С.

The main parts of magnetic couplings used in GNVC series vertical pumps are the driving (external) and the driven (internal) half couplings, and a sealing sleeve between the half couplings. The exceptional reliability of Villina magnetic couplings is the result of a high-tech design: the enclosed capsular design of the half couplings (enclosed body) secures the magnetic systems from environmental effects; the use of special adhesives allows for fast fixture of domestically produced permanent magnets based on rare-earth elements on the half coupling ferrules; double protection against overheating and demagnetization is implemented using the temperature sensor of the sealing sleeve, which is triggered when the maximum acceptable operating temperature is exceeded by 20 to 50°C, with the use of magnets with Curie point of more than 100°C higher than the maximum acceptable operating fluid temperature; the sealing sleeve made of high-strength Hastelloy alloys Purpose:transit of corrosive, toxic, explosive and flammable fluids Pump rate ranges:1 to 200 m3/h Head ranges:5 to 250 m Seal type:magnetic coupling according to API 685 with a sealing sleeve made of Hastelloy alloy Climatic version:for moderate and for moderate and cold climate Temperature of the pumped fluid:up to plus 350°С Shaft speed:2,900 rpm Structural design:vertical type with the motor mounted on a flanged connection