PW type vacuum pumps and DW type blowers

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GENERAL DATA Application Rotating liquid ring vacuum pumps and blowers (commonly known as compressors) are used in various processes which demand suction and forced flows of oil-free gases, especially in the chemical, pharmaceutical, food processing, paper-making, and textile industries, as well as for the priming of impeller pumps and siphons. • Catalogue parameters of PW and DW compressors relate to an air of 20oC temperature, atmospheric pressure 1013 hPa with usage of water of 15oC temperature for PW and 40oC for DW as a service liquid (measured at the compressor outlet). If temperature of...

GENERAL DATA Principle of Operation. Construction The design of compressors with a rotating liquid ring is determined by the above principle of operation. The devices are rotating, valveless, positive-displacement pumps. Part of the working liquid that forms the ring is discharged together with the gas and is made up continuously. The pump consists of fixed parts such as the casing (also referred to as distance body), control disks (also called suction elements and discharge elements), side bodies closing the pump, together with bearing bodies, seals and packings, and moving parts, such as impellers,...

Compressors are made of a few types of materials. It is possible to use other materials both parties agree on. The fundamental parts of compressors and materials used in their particular types are presented in a table: * Requires technical and commercial consulting * G-X5N and Mo 19.11.2 - austenitic cast steel * CrX25CrN and Mo 25.9.3 - special austenitic cast steel Specific configurations are marked by sub-codes comprising the symbols - e e1e1e2 - wherein: e - indicates the temperature of the pumped gas e^ - indicates the kind and type of the shaft seal e2 - is a reserve (symbol 0) - PW/DW.4...

Delivery completeness 1. compressor with a free shaft ending 2. compressor with a complete coupling 3. compressor with a complete coupling and foundation plate 4. compressor according to the completeness 3 + electric motor The appearance of product (protective coatin 1. sstandard All basic information about the product is coded in its symbol. This symbol is included in both, catalogue and product rating plate. Therefore, it is easier for our customers to choose the most appropriate product and contact us during exploitation e.g. while ordering spare parts. The product code is structured as follows:...

SECTION The section of pump PW.1.12-13 and DW.1.12-13 with a mechanical seal Distance member Pump housing Pump housing Mechanical seal housing Mechanical seal housing Bearing housing Bearing housing Bearing cover Bearing cover Discharge member Suction member The section of pump PW.1.21-23 and DW.1.21-33 with a mechanical seal Pump housing Distance member Pump housing Mechanical seal housing Mechanical seal housing Bearing housing Bearing housing Bearing cover Bearing cover Shaft Mechanical seal Mechanical seal Discharge member Suction member Discharge member Suction member www.hv.pl [email protected]...

SECTION The section of pump PW.1.12-13 and DW.1.12-13 with a cord seal Pump housing Distance member Pump housing Bearing housing Bearing housing Cord seal housing Cord seal housing Bearing housing Bearing housing Packing gland Packing gland seal Discharge member Suction member The section of pump PW.1.21-23 and DW.1.21-23 with a cord seal pump housing Distance member pump housing Bearing housing Bearing housing Mechanical seal housing Mechanical seal housing Bearing cover Bearing cover Packing gland gland Cord seal Discharge member www.hv.pl [email protected] Suction member Discharge member Suction...

SECTION The section of pump PW.4.11-12 and DW.4.11-12 with a seal • • above the shaft axis - mechanical below the shaft axis - cord Pump housing Distance member Pump housing Mechanical seal housing Mechanical seal housing Mechanical seal Mechanical seal Bearing housing Bearing housing Bearing cover Bearing cover Shaft Bearing housing Bearing housing Packing gland Packing gland Mechanical seal housing Mechanical seal housing Cord seal Cord seal Suction/discharge member The section of pump PW.4.13-14 and DW.4.13-14 with a seal • • above the shaft axis - mechanical below the shaft axis - cord Collecting...

SECTION The section of pump PW.4.21-24 with a seal • • above the shaft axis - mechanical below the shaft axis - cord Collecting pipe Pump housing Distance member Pump housing Mechanical seal housing Mechanical seal housing Mechanical seal Mechanical seal Bearing housing Bearing housing Bearing cover Bearing cover Bearing housing Bearing housing Packing gland Packing gland Cord seal housing Cord seal housing Cord seal Discharge member Suction member Cord seal The section of pump PW.5.12-14 and DW.5.12-14 with a mechanical seal Collecting pipe Distance member Pump housing Pump housing Mechanical...

SECTION The section of pump PW.5.21-24 with a mechanical seal Discharge housing Distance member Collecting pipe Suction housing Mechanical seal housing Mechanical seal housing Impeller Mechanical seal Mechanical seal Bearing housing Bearing housing Bearing Bearing cover Bearing cover Suction/discharge member Suction member Discharge member Suction/discharge member The section of pump PW.7.11-12 and DW.7.11-12 with a seal • • above the shaft axis - mechanical below the shaft axis - cord Pump housing Pump housing Distance member Mechanical seal housing Mechanical seal housing Mechanical seal Mechanical...

SECTION The section of pump PW.7.13-14 and DW.7.13-14 with a seal • • above the shaft axis - mechanical below the shaft axis - cord Collecting pipe Distance member Pump housing Pump housing Mechanical seal housing Mechanical seal housing Mechanical seal Mechanical seal Bearing housing Fixing nut Bearing housing Bearing housing Bearing cover Distance piece Bearing Bearing cover Bearing housing Bearing Bearing housing Packing gland Packing gland Cord seal Cord seal Suction/discharge Cord seal housing Distribution plate Cord seal housing The section of pump PW.7.21-24 with a seal • • above the shaft...