April 2021 — Prom-nasos.com.ua

Manufacturers of pumping equipment for the chemical industry are increasingly giving preference to polymers when choosing materials for their products. This is due to their extreme resistance to aggressive chemicals and adaptability, and sometimes their relative cheapness relative to metals. Plastic pumps are much lighter than metal samples. At the same time, they have sufficient strength to work with engines up to 3000 rpm and significant performance. Currently, the main types of chemical pumps are centrifugal and diaphragm pumps. Modern centrifugal pumps are mainly pumps with a special mechanical seal and pumps with a magnetic coupling. Horizontal polymer chemical centrifugal pumps have high performance, are powered by a direct drive motor (Max. 3000 rpm), and are designed for fast pumping and/or pumping of aggressive liquids at a flow rate of 9 to 40 m3/h. If the impeller is open, the pump can pump even very polluted liquids containing small suspended dense particles in a continuous flow. Special chemically resistant mechanical seals make it possible to prevent the leakage of aggressive solutions of chemicals from the pump part and damage to the engine. They are made of polymers for use in standard conditions. For heavy – duty applications and heavily soiled liquids, use Teflon and friction pairs made of ceramic or silicon carbide. The Relative Strength of polymer materials made it possible to produce new types of pumps – plastic pumps with a magnetic coupling. Magnetic coupling centrifugal pumps are used in processes where aggressive reagents and solutions require circulation or pumping. The magnet on the motor shaft rotates the magnet integrated into the pump impeller with its magnetic field. Therefore, there is no need for shaft seals, since aggressive liquid does not come into contact with it. There is no need for expensive shaft material made of special resistant alloys. This significantly reduces operating costs Magnetic coupling pumps are designed for fast pumping and/or pumping of aggressive liquids at Flow rates from 15 to 1230 l/min (0.9 - 73.8 m3/h). Magnetic coupling pumps are used for pumping clean liquids with a viscosity of up to 200 cPs (at 20 °C). In general, plastics are not sufficiently resistant to liquids containing abrasive particles. Only a few of them are as abrasive-resistant as stainless and carbon steel. Relative bulk abrasive abrasion of various materials (PE-1000 - 100 abrasion) according to the abrasive wear test method in the abrasive mixture (ISO 15527). Therefore, only PVDF (polyvinyldene fluoride) and PE-100, PE-HD (polyethylene) can compete with metals in terms of abrasive resistance. A large amount of abrasives and solid particles in the liquid lead to rapid failure of plastic pumps with a magnetic coupling. Special pre-filters should be used to filter coarse particles. The coarse pre-filter is designed to install pneumatic or centrifugal pumps to protect them from suspended solids and foreign objects, without causing excessive loss of productivity. The basket filter is an important device for protecting the pump. Thanks to its use, suspended particles, filaments contained in the liquid are filtered. These elements are particularly harmful to pumps. The kit does not contain metal parts and is therefore ideal for highly aggressive substances such as acids and alkalis used in the chemical industry. The filter structure makes it easy to clean and inspect. Plastic diaphragm pumps are also suitable for abrasive-containing viscous liquids and liquids with dense particles. Special slurry (mud) pumps are better able to cope with these tasks. The flow part of the slurry pump is made of a high-chromium alloy or coated with wear-resistant rubber, which makes them suitable for liquids containing solid particles, as well as acids or alkalis, which makes it possible to use these pumps for a wide range of liquids. Centrifugal slurry pumps are used for pumping abrasive liquids with a high concentration of suspended particles. Pumps have different types of construction: horizontal self-priming, semi-submersible, submerged. In difficult operating conditions special rubber lined chemical pumps are used, as well as pumps with a working part made of thick-walled cast acid-resistant stainless steel AISI 316L .

German manufacturer of pumps for swimming pools and circulation with filters SPECK specializes in the assembly of pumps for circulation and pre-filtration in swimming pools. Select the SPECK mechanical seal for the pump by yourself or order a consultation and selection from the manager.

Each pump manufacturer "encrypts" the mechanical seal, which is standard under its article or product code .When replacing the mechanical seal, we identified the following end models, similar to KSB KU043M1-5A material 0101VGG, these are BURGMAN M7N and R-H12N 43, CAR/SIC, EPDM, 304, G9 according to the BTS Engineering item number: R-M7N 43, SIC/SIC, VITON, 316, G9

R-CR cartridge seals for pumps Grundfos CR, CRE, CRI, CRIE, CRN, CRNE, CRT, CRTE Material execution: HQQE, HQQV, HQQK , HQQF , HQBE , HQBV , HQBK , HUBE , HUBV, HUBK, HUBF, HUUE, HUUV , HUUV* , HUUK, HUUF Mechanical seal part number: 96455086, 96455087, 96533326, 96533327, 96455088 , 96455089 , 96491375 , 96455082 , 96455083 , 96533322 , 96533323 , 96455084 , 96455085 , 91043611 , 96533324 , 96533325 96511844 ,96511845, 96511846, 96511847 , 96511848 , 96511849 , 96511836 , 96511837 , 96511838 , 96511839 , 96511840 , 96511841 , 96511842 , 96511843 96525458, 96525490, 96533369, 96533412 , 96525457 , 96525459 , 96533365 , 96533366 , 96436727 , 96436728 , 96533367 , 96533368 Always in stock cartridge seals for Grundfos CR pumps: 12 mm for CR, CRN 1,3,5 16 mm for CR, CRN 10,15,20 22 mm for CR, CRN 32,45,90,120,150

Electric pumps Cantilever monoblock pumps Sewage pumps, drainage pumps Chemical pumps Dispensers High pressure pumps Inline pumps Circulating pumps Food pumps Vacuum pumps Peristaltic pumps Cantilever monoblock electric pumps Monoblock centrifugal pumps SM Ebara 3M Series Centrifugal Pumps Horizontal pumps IR (SAER) for water supply Centrifugal pumps CDX, 2CDX series SAER FC centrifugal pumps with two impellers Pumping units TsNBK Self-priming centrifugal pumps Wilo-Jet WJ Pumping station Wilo-Jet HWJ with a hydraulic accumulator Vortex high pressure pumps PQ 3000 (Pedrollo) JLM hot water pumps GTP Series Centrifugal Pumps DWO open impeller pumps Fecal, drainage electric pumps Submersible pumps Wilo-Drain MTS for wastewater disposal RIGHT submersible sewage pump Drainage pump WQK with cutting device Sewage pumps Wilo EMU FA Drainage pumps WQ Wilo-DrainLift sewage pressure units KH, TMP Sewage systems Grundfos SOLOLIFT + WC, WC-1, WC-3, CWC-3, C-3, D-3 Chemical electric pumps Hermetic pumps with magnetic drive FMB IM vertical chemical pumps Chemical pump MV for pumping acids Drum pumps TR for barrels, containers Magnetic Drive Pumps DM Phoenix diaphragm pumps Diaphragm pulsation damper Damper Pneumatic pumps Cubic, MidgetBox BOXER Diaphragm Pumps Dispensers Plunger pumps P Diaphragm pumps D Solenoid pumps DLX (B) Diaphragm metering pumps PKX Pool control station My Pool High pressure electric pumps CDLF Series Multistage Pumps MVI vertical high pressure pumps High pressure glandless pumps MVIS Horizontal high pressure pumps MHI Vortex high pressure pumps PQ3000 (Pedrollo) Compact booster pump PB Construction electric pumps "Inline" Pumps with dry rotor made of IRG cast iron IHG stainless steel dry rotor pumps JL Heating Circulation Pumps Circulating electric pumps IPH special pumps for hot water WILO TOP-S Glandless Circulation Pumps Circulation pumps GHN, GHNM three-speed Food electric pumps Food pumps ZCD Food pumps TS Milk pumps TEH Phoenix Food stainless steel food pumps steel AISI 316 with electropolished FOODBOXER food diaphragm pumps Rotary gear pumps NRP Sh ZENNF food pumps Vacuum electric pumps Vacuum pumps PBO Vacuum pumps S Monoblock liquid ring vacuum pumps GMVP GMP Double Stage Liquid Ring Vacuum Pumps GMVT Single Stage Liquid Ring Vacuum Pumps Peristaltic electric pumps MP Peristaltic Pumps Peristaltic pumps AS ASP Hose Pumps Peristaltic pumps ATR