SKK-Pumpen
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ROTARY PISTON PUMPS THE FEED PUMP TYPE SKK The variants of the feed pump SKK Type SKKM Type SKKE • rotation-independent • safe to run dry (no metal contact) • sturdy construction with one-sided bearing • power transmission gears in the oil bath • additional bearing in the cover for higher pressures • several sealing types • easy assembly • several types of pipe connections • casing with cover heating • entirely closed heater jacket • any heating with water, steam or oil is possible • heating circuit-pressure max. 6 - 8 bar • heating temperature up to 200 °C (standard), higher temperatures on request Feed pump SKKM • electrical cover heating • heatable by 2 heating cartridges • temperature controlled • adjustable up to 200 °C (standard), higher temperatures on request Range of pumping liquids (extr.) Biotechnology Cell suspensions, enzymes, nutrient solutions Chemistry Adhesives, artificial resin solutions, colours, dispersed synthetic resin, gelatine, lacquers, underseal, washing powder slurries Feed pump SKKE Beverage industry Advocaat, beer mash, fruit concentrates, malt extract, syrup, yeast Milk products Butter, cheese curd, cream, margarine, mayonnaise, concentrates of milk, skimmed milk and whey, pudding, processed cheese, yoghurt Food Apple purée, aspic, baby food, blood, cake mixtures, egg products, animal and vegetrable fat, honey, jam, mustard, salads, sauces, sausage meat, soups, tomato ketchup Petrochemistry Additives, bio diesel, bitumen with fillers, diesel oil, glyzerine, lubricants, mineral and synthetic oils, pitch, pure bitumen Pharmaceutics / cosmetics Cremes, foam bath, make-up, lotions, plant extracts, ointments, shampoo, toothpaste Sugar / Sweets Chocolate, chocolate fillings, cocoa butter, cocoa mass, fondant, jam, liquid sugar, liquorize, mass for sweets, molasses, starch solution, toffee Reference technical data Feeding capacity 60 - 1.700 cm³ / turn Tolerated overpressure depending on the application up to max. 20 bar Viscosity range depending on the application up to 100.000 mm²/s

Main characteristics   The series of the types SKK offers a wide range of different variations and constructions for the transport of nearly all pumpable media. SKK illustrations Explosion type of a SKK3 with different flanged ports   The pump consists of the gear component with synchronous drive of the two rotary pistons and the part of the pump containing the casing with suction and pressure joint and the two rotary pistons.   The sturdy bearing is located in the gear component, protected against the pumping liquid by different seals. On the other hand, special seals prevent any leaking...

Variants of pistons and covers   The open piston type G is used for media of low viscosity in combination with the shaft seals G and GG.   The closed piston type P is used for media of higher viscosity in combination with the shaft seals P and SS. Recipient (unpressurized) made of natural glass Stainless steel-recipient to be pressurized, conform to ATEX Stainless steel-recipient to be pressurized with float switch, conform to ATEX Thermosiphon system to be pressurized with cooling spiral and backfeed pump, conform to ATEX 3

Survey of structural components Cover jacket heated (M) (3 Cover electr. heating (E) (3 Flange port Rotary piston G Milk pipe port Pressure relief valve Thread port Rotary piston P Customer port (1 Cover P Main structural components of the pump Connection variants at the pressure and suction port Optional structural components Optional, heatable covers

  The parts of the SKK pump shown in the survey of structural components shall illustrate the great amount of variants available for this pump type.   For reasons of clarity we cannot show all optional structural components. We only show the main parts here. Besides these variants, we offer casings, pistons and covers in different materials, offering further possibilities of combination.   Gebr. Steimel is your partner for individual solutions. Please contact us without any obligation, if you need further information concerning the standard components or are interested in a special variant...

Throughputs Pressure p (bar) at speed n = 200 1/min Pump rate Throughputs cm³/turn Size Power rating Pump rate Power rating Throughputs cm³/turn NkW = nominal power requirement at the pump shaft for a viscosity of 150 mm²/s. The pump rate (l/min) applies to 200, 400, 600 and 800 1/min. The throughput for other speeds can be calculated accordingly. Variation of the delivery flow ±5%. The pump rate is reduced at a viscosity under 150 mm²/s. Higher pressures are possible on request. 1 Necessary driving power (20% additional extra has been observed). Modifications reserved. Connections Standard...

Versions Cast casing parts: shafts: pistons: shaft seal: grey cast iron or nodular iron case hardening steel tempering steel or zinc-free bronze see shaft seals Zinc-free bronze casing parts: shafts: pistons: shaft seal: zinc-free bronze stainless steel stainless steel or zinc-free bronze see shaft seals Stainless steel casing parts: shafts: pistons: shaft seal: stainless steel stainless steel stainless steel or titanium see shaft seals Other materials, seals and special designs on request. Key for variants Construction types SKK standard design E elektrical cover heating M heater jacket D...

Examples for types For the food and chocolate industry SKK with recipient for quench liquid SKK unit for the chocolate industry e.g. chocolate container with SKK rotary piston pumps or the colours and lacquers‘ F industry Compact pump unit SKK with recipient for quench liquid acc. to ATEX e.g. rotary piston pumps in printing colour plant For bitumen treatment Compact pump unit SKKE with electrical cover heating SKK.2-12-2007-en • © 2007 Gebr. Steimel GmbH & Co., Hennef • Modifications reserved. e.g. rotary piston pumps for bitumen conveyor and mixing plants For the chemical, pharmaceutical...