Liquid Ring Vacuum Pumps (LRVP)

Water-ring vacuum pumps (WRVP) are designed for pumping gas and non-aggressive vapor media by means of a vacuum generated inside closed units. It should be emphasized that only water can be used as a working medium for VVPs. Water-ring vacuum pumping equipment has a high degree of reliability, durability and efficiency, so it has proven itself in a variety of industrial sectors and areas, the main ones being:

• chemical industry: distillation, crystallization of coloring compounds and agricultural fertilizers; drying of organic solvents, synthetic fibers, amino plastics, PE-RT; dissolution, sorption of toxic gases and hazardous liquid media; vacuum impregnation in the production of capacitors, electric motors, cables, transformer units, etc;
• woodworking and pulp industry: production cycles for drying, processing and refining wood; vacuum filtration and pulp production; production of paper and cardboard materials, etc;
• metallurgical industry: use of HEU in production cycles related to powder metallurgy; production of superconductors, ultrapure compounds, laser crystals, etc;
• machine-building industry;
• food industry: production of brewing malt; freeze-drying of food products; rectification of alcoholic beverages; desalination of water; evaporation of moisture in sugar production, etc;
• optics: vacuum aluminization of mirror surfaces, optical equipment clarification, etc;
• pharmaceutical industry: purification of medicinal raw materials; production and storage of medicines, etc;
• construction industry: degassing ceramic and clay raw materials, etc;
• perfume and cosmetics industry.

Design of water ring vacuum pumps (WRV)

Water is used as the working fluid in water-ring vacuum pumping equipment, which is why it is called this way. The design of the VVN is a cylindrical casing partially filled with a liquid medium, inside which an eccentrically arranged rotor equipped with an impeller (radial blades) rotates. During the rotation of the impeller, its blades capture the liquid medium and then throw it against the walls of the casing, resulting in a rotating liquid ring inside the casing. A sickle-shaped space is formed between this liquid ring and the impeller hub, which is the working cavity of the unit, which is divided by the blades into separate cells of variable volume. An increase in the volume of the cells leads to the suction of liquid.

There are three main types of water-ring vacuum pumps:

• Single-stage HPVs with one working chamber (monoblock)
• Single-stage HPVs with two working chambers
• Two-stage VVNs with two working chambers

Single-stage units with a single working chamber are lightweight, small in size, have relatively low performance and low cost, and are equipped with a single impeller. Due to the increasing axial shaft beats, the power of this type of HPW is limited to 11-15 kW. With large dimensions, the equipment of the pumps changes, they consist of 2 discharge and 2 suction nozzles, 2 impellers on one shaft and 2 working chambers – this design reduces the axial load on the bearings. Single-stage units with two independent working chambers are equipped with pairwise connected nozzles. Two-stage units with two dependent (as opposed to single-stage VVH) working chambers are equipped with 2 impellers. The outlet nozzle located in the first chamber is connected by a manifold to the inlet nozzle located in the second chamber, so that the working medium moves first through the first and then through the second chamber, thereby increasing the vacuum depth. The main advantage of this type of pump is additional purification of the pumped medium and the ability to develop increased outlet pressure.

GÜCÜM GMVT 275/300 vacuum pump with 22 kW 1450 rpm electric motor

Technical specification

• Vacuum 40 mbar (max)
• Single-stage water ring type
• Capacity 830 m3/h (max)
• Connection input/output DN100
• Service fluid 60 l/min
• AC motor, 3 x 380 V, 50 Hz, IP55, IE3
• Engine power 22 kW – 1450 rpm

Materials of execution

• Inlet and outlet housing Cast iron GG 25
• Intermediate plate AISI 304
• Housing Steel St 37
• Impeller Bronze G Cu Sn 9
• Shaft AISI 420 stainless steel
• Mechanical SiC/Carbon/Viton shaft seal
• Base/frame Steel
• Elastic coupling
• Version Frame-mounted unit with coupling and electric motor
• Overall dimensions 1505 x 730 x 410 mm
• Weight of the unit 460 kg

Advantages of water-ring vacuum pumps (WRVP) from Dalgakiran Compressor Ukraine

Today, the pumping equipment market offers quite a few VVN pumps, so if you decide to buy a water ring vacuum pump, pay attention to the advantages of our company as a supplier of such equipment:

• exclusive supplies of the well-proven Gücüm (Turkey) VVNs in Ukraine;
• extensive experience in supplying Ukraine since 2005;
• full service support for the supplied pumps;
• service centers with a warehouse of original spare parts in 10 major cities of Ukraine.

Delivery across Ukraine:

Courier (by our company)

Pick up yourself, or we will organize delivery throughout Ukraine.

Payment methods:

Cashless payment.