Eccentric Screw Pumps

Transcription

1 Eccentric Screw Pumps Use Suitable for pumping low- to high-viscosity liquids, neutral or aggressive liquids, undiluted or abrasive liquids, liquids containing gases, liquids prone to foaming, including liquids with fibrous or solid particles. The type of seal and the material pairings are adapted to suit the particular operating conditions which exist in any given case. For further details see page 5. Main fields of application Wastewater and clarification plants, chemical and petrochemical industries, paper and cellulose, soap and grease, paint and coatings, food and beverage, plastics, ceramics, agriculture, sugar industry, shipbuilding, etc. In any given size of pump, the housings for the various types of stuffing box or mechanical seal are interchangeable with one another. The various parts of the housings for mechanical seals form a modular system and can be combined with one another without any difficulty should the pump be converted to a different type of mechanical seal. Function Self-priming, rotating displacement pump. The pumping elements are the rotor and the fixed stator. These two parts contact each other at two points in their cross-section. Viewed along the length of the pumping elements, these points form two sealing lines. As the rotor turns, sealed chambers are created. The content of the chambers is moved continuously in the axial direction from the suction side to the pressure side of the pump. Despite rotation of the rotor, no turbulence results. The consistent chamber volumes eliminate crushing forces and ensure an extremely gentle, lowpulse pumping action. Mechanical seals to DIN EN can be fitted (double mechanical seal excluded). For further details see pages 4, 5, 6, and 7. Bearing The drive shaft is carried in particularly rugged deep groove ball bearings which are designed to withstand all appearing radial and axial loads. The bearings are lubricated for life. For further details see page 4 and 6. Structural design Discharge casing, stator, suction casing, and lantern base are held together by means of external casing connection screws (clamp bolts). The suction casings of all sizes are provided with large suction cross-sections. The stator is vulcanized into a pipe and is equipped on both ends with external collars that provide reliable sealing with the suction and discharge casings and protect the stator casing from corrosion. Exchangeability of parts The components of all progressing cavity pumps are designed to be modular. As a result, a customer who employs several pumps from various series and designs will be able to maintain a simple and cost-effective stock of reserve parts. Drive For possible types of drive see page 9. The exchangeable stuffing box casing or mechanical seal (can be retrofitted to another seal type) is located between the lantern base and suction casing. Drivers produced by any manufacturer can be used. Technical characteristics and dimensions should be taken from the documentation issued by the manufacturer. The drive shaft is carried in bearings in the bearing housing. The drive torque is transmitted to the rotor via the drive shaft and a coupling rod. Both ends of the universal joint shaft end in liquidsealed encapsulated pin joints that are designed to be very simple and robust and absorb the rotor s eccentric movement without disturbances. Shaft seal Shafts are sealed by cooled or uncooled stuffing boxes or cooled or uncooled, non-balanced single or double-acting mechanical seals which require no maintenance. Installation Depending on the shaft seal, ANP pumps can be installed horizontally or vertically. When installed vertically, a motor down arrangement should be consulted the manufacturer. The pump and driver are connected together via a flexible coupling or an intermediate transmission (generally a belt drive) and are mounted on a common baseplate. Dimensions of assemblies available on request. VM 624 GB/ Ident-Nr

2 Technical data Refer to the performance graph on Page 3 or the separate individual curves for data on pump capacities, permissible speed ranges, and required drive output. Capacity Q l/min up to 42 Liquid temperature t C up to 150 Two-stage discharge pressure p bar up to 12 Four-stage discharge pressure p bar up to 24 Outlet pressure p d bar up to 16(25 ) Achievable under pressure p s bar up to 0,95 Viscosity η mpas up to Permissible proportion of solids Vol% up to depends on pumped liquid and selected elastomers possible for size 3 and 6. depends on rotational direction and inlet pressure depends on pump size/design, speed, pumped liquid For size 3 and 6 at the suction and pressure connection thread store. The provided performance specifications are meant only as a product/performance overview. Refer to the quotation and order confirmation for precise operational limits. 60 Maximum permissible grain sizes and fiber lengths: Size Max. grain size in mm 1 1,5 2 Max. fiber length in mm Pump speed must be reduced as the proportion of solids and the grain size increase. 2 VM 624 GB/ Ident-Nr

3 Performance graph for rough selection of pump size and speed depending on desired capacity and the type of liquid. vg "m" = existing average sliding speed of the rotor in the stator. Sizes in ANP series. Refer to the reverse side of this technical documentation or the technical documentation of the other series for data on the performance range not covered by ANP. See individual curves for precise performance data. VM 624 GB/ Ident-Nr

4 Explanation for the type key: Position Designation in type key Version 1 Series ALLWEILER progressing cavity pump 2 Size Possible sizes: 3, 6, 12 The figures indicate the theoretical capacity in l/min. at n = 400 1/min and p = 0 bar. 3 Number of stages 2 = Two stage up to 12 bar 4 = Four stage up to 24 bar (sizes 3, 6) 4 Bearing B = Two deep groove ball bearings with sealing washer to the outside, open to inside of the bearing housing. Small tolerances between shaft and bearing housing on drive side and between thrower and bearing housing on pump side prevent the ingress of dirt into the bearing housing. X = Special-type bearing 5 Suction and discharge branch version 1 = DIN flange (available only with casing material EN GJL 250) 2 = Thread connections acc. to dimension sheet p. 6 X = Special suction and/or pressure branch 6 Branch position 1, 2, 3, 4 - See diagram on page 9 for arrangement 7 Shaft seal type P = Stuffing box or other non-mechanical shaft seal G = Mechanical seal (mechanical shaft seal) 8 Shaft type 0 = Shaft without shaft sleeve 4 VM 624 GB/ Ident-Nr

5 9 Shaft seal version P.1 = Stuffing box in normal version (without seal chamber ring/without flush ring) P.2 = Stuffing box with flushing ring P.3 = Stuffing box with inner-lying seal chamber ring P.4 = Stuffing box with outer-lying seal chamber ring P.X = Non-mechanical shaft seal in a special version G.0 = Mechanical seal, single-acting, unbalanced, directionally independent, with single spring, Secondary elastomer seals G.1 = like G.0, but with multiple springs G.2 = like G.0, but secondary seals jacketed with double PTFE G.3 = like G.1, but secondary seals jacketed with double PTFE G.4 = like G.0, but with throttled barrier fluid leakage in the pump space G.5 = like G.4, but with multiple spring G.6 = like G.4, but secondary seals jacketed with double PTFE G.7 = like G.5, but secondary seals jacketed with double PTFE G.8 = Mechanical seal, double acting, unbalanced, directionaly independent, with multiple spring, secondary elastomer seals or product side secondary seals double PTFE-coated and barrier fluid side secondary elastomer seals G.9 = like G.8, but all secondary seals jackete with double PTFE G.X= Special mechanical seal version 10 Double jacket D = Double jacket for heating or cooling. Available only with stainless steel version 11 Double jacket version 1 = Suction casing with double jacket X = Special version for additional double jackets 12 Variations S = Worm on U-joint shaft N W = Winding protection on U-joint shaft M Y = Hard-chromed ductile rotor H T X = other versions Casing part materials Rotating parts, contacting liquid (without rotor and joint collars) material Rotor material Stator material Joint sleeve material Shaft seal material 1 Not possible for four stages 1 = EN-GJL = X = Special materials 4 = / X = Special materials, e.g. also on joint parts 3 = = X = Special materials, e.g. other metals, synthetics WB = Natural rubber, soft Y = Hypalon SL = Silicon, light 1 P = Perbunan N V = Viton PL = Perbunan, light HP = Perbunan/hydrogenated E = EPDM YL = Hypalon light PT = Teflon, fiberglass reinforced PU = Polyurethane A = ALLDUR X = Special materials, e. g. metals, synthetics, elastomers P = Perbunan N Y = Hypalon O = No joint collars PL = Perbunan, light V = Viton X = Special materials B = Butyl rubber Stuffing box: 5846 = Ramie fiber with PTFE impregnation, asbestos-free 6426 = Aramide endless fiber with PTFE impregnation, asbestos-free 6230 = Graphite-incorporated PTFE with lubricant, asbestos-free Mechanical seal: Pairing of sliding materials 1st position when single seal 1st + 4th position when double seal 2 = Cast CrMo/hard carbon 4 = Ceramic/hard carbon 5 = Carbide/carbide highly wear resistant 6 = Silicon carbide/silicon carbide highly wear resistant, corrosion resistant 7 = Silicon carbide/silicon carbide highly wear resistant, highly corrosion resistant X = Special materials Springs and construction materials 2nd position A = F = L = Hastelloy B M = Hastelloy C4 X = Special materials other versions with dependence on liquid temperature Secondary seals 3rd position when single seal 3rd + 5th position when double seal P = Perbunan 1 doppelt- E = EP rubber PTFE- S = Silicon rubber jacketed N = Neoprene V = Viton TTE = EP rubber 1 TTV = Viton 1 TTS = Silicon rubber 1 X = Special materials VM 624 GB/ Ident-Nr

6 Sectional drawing and directory of individual parts Pump in base version Part 101 punched twice to secure Part 304 punched once to secure Bearings = B (lubricated for life) Shaft seal: P01 Stuffing box of standard type (no lantern ring/no flushing ring). Particularly long packing allows pump to be used in a wide variety of applications. Permitted pressure at shaft seal p = -0.7 to 3.0 bar Worm on joint shaft Stator of plastic material Winding protection on joint shaft Part No. Part name Part No. Part name Part No. Part name 101 Key 209 Seal chamber ring 402 Stator 102 Spacer sleeve 212 Screw plug 403 Pressure-side stator seal 103 Radial bearing Seal ring 404 Suction-side stator seal 104 Axial bearing 214 Mechanical seal housing 501 Suction casing O-ring 107 Bearing grease 215 Mechanical seal cover 502 Screw plug 110 Bearing housing 218 O-ring 503 Seal ring 114 Thrower 219 Mechanical seal 504 Discharge casing 118 Drive shaft Locking pin 505 Suction casing 121 Circlip 301 Joint pin 601 Nameplate 127 Circlip 303 Bush for point pin 602 Round head grooved pin 129 Spacer ring 304 Joint sleeve 603 Information plate Start up 201 Stud bolt 305 Joint oil Information plate Suction 202 Selflocking Nut 306 Joint clamps Information plate Discharge 203 Gland 307 Universal joint shaft 609 Hexagon nut 204 Stuffing box casing 308 Joint collar 610 Washer 207 Gland packing 401 Rotor 611 Clamp bolt 208 Flushing ring 1 only fitted to types G02 to G09. 2 With normal rotational direction only (left when viewed from drive end) If direction changed info plates are exchanged in accordance with branch change. 3 With shaft seal types G04 to G07 screwed plug sealed with Loctite. 6 VM 624 GB/ Ident-Nr

7 P02 Stuffing box with flushing ring. Suitable for highly abrasive pumped liquids with external flushing. p = -0.7 to 8 bar P03 Stuffing box with internal lantern ring. Suitable for uncontaminated pumped liquids with internal liquid sealing, or for abrasive pumped liquids with external liquid sealing. p = -0.8 to 6 bar P04 Stuffing box with external lantern ring For use where external sealing liquid incompatible with pumped liquid or where the ingress of air is to be prevented p = -0.9 to 4.0 bar G 00 to G 03 Mechanical seal, single G 04 to G 07 Mechanical seal, single G 08 and G 09 Mechanical seal, double acting non-balanced, either acting non-balanced, either acting non-balanced, either direction of rotation, direction of rotation, direction of rotation (type G 02 shown in drawing). with throttled outlet for seal (type G 09 shown in drawing). For pressures of p = -0.5 to 10 bar liquid into pump chamber Can be used for pressures of p = consult manufacturers. (type G 06 shown in drawing). to 15 bar consult manufacturers. Can be used for pressures of p = -0.5 to 10 bar consult manufacturers. VM 624 GB/ Ident-Nr

8 Pump dimensions, auxiliary connections, weights q = space for disassembly Branch position DN2 Key Female threads DIN EN NPT-female threads: USAS B M 1) Type b c d e f h i l m1 m2 n o q s R2 3) DN1 DN2 R1 2) g k p w DN1 DN2 R1 g k p w kg ANP ANP Rp ½ NPT ANP Rp1/4 G1/ ¼-18 NPT ,5 ANP ANP Rp1 1/ ¼-11 ½ NPT ) maximum mass kg 2) DIN EN ISO ) DIN EN Dimensions in mm. Nominal dia. of suction, discharge, and aux. connections in inch. Direction of rotation: normally left when viewed from drive end, hereby: DN1 = discharge branch, Dir. of rotation may be changed, then DN1 = suction branch, DN2 = discharge branch. q = space for disassembly Branch position DN2 Key Type ANP DIN EN M 1) b c d e f h i l m1 m2 n o q s R2 3) R1 2) DN1 k 4) p 4) w 4) DN2 g 4) kg ANP ANP Rp1/4 G1/ ,4 ANP ANP ,2 1) maximum mass kg 2) DIN EN ISO ) DIN EN ) when rubber coated: +3 mm Dimensions in mm. Nominal dia. of auxiliary connections in inch Direction of rotation: normally left when viewed from drive end, hereby: DN1 = discharge branch, DN2 = suction branch. Dir. of rotation may be changed, then DN1 = suction branch, DN2 = discharge branch. 13,9 8 VM 624 GB/ Ident-Nr

9 Arrangement of auxiliary connections on shaft seal (viewed from drive) Stuffing box P 02 Stuffing box P 03 and P 04 Mechanical seal G 04 and G 07 Mechanical seal G 08 and G 09 Auxiliary connections with double jacket for heating or cooling Connection diameters of auxiliary connections (all sizes) Flushing Sealing Heating/cooling 1 R3 1 R6 1 R4/R5 1 R7/R8 2 R9/R10 Rp 1/8 Rp 1/4 Rp 1/8 Rp 1/4 R 3/8 1 Screw hole DIN 3852, form Z 2 Pipe thread DIN EN All auxiliary connections available upon request with NPT threads with same nominal diameter. VM 624 GB/ Ident-Nr

10 Possible branch positions viewed from drive 1 normal 1 ANP with flexible coupling and electric motor 4 ANP with V-belt-drive, adjustable motor platform and motor situated behind the pump 2 ANP with flexible coupling and geared motor 5 ANP with V-belt-drive, adjustable motor, platform and motor situated above the pump 3 ANP with flexible coupling and internal combustion engine 6 ANP with flexible coupling and infinitely variable speed gear 7 ANP with flexible coupling, gear box or variable speed gear, flexible coupling and motor 10 VM 624 GB/ Ident-Nr

11 VM 624 GB/ Ident-Nr

12 Progressing cavity pump product line Progressing cavity Peristaltic pumps Series Number of stages Max. capacity at p = 0 bar m³/h Max. pump pressure bar Max. viscosity l/min mpa * s AE1F AEB1F AE1L-ID AE.E-ID 1, AE.N-ID 1, AE.H-ID 2, AEB1L-IE AEB.E-IE 1, AEB.N-IE 1, AEB4H-IE AE.N -RG 1,2, TECFLOW SEZP 1, SNZP 1, SNZBP 1, SSP 1, SSBP 1, SETP 1 1, SETBP 1, SEFBP SMP SMP2 1 5, AFP 1 2, ANP 2,4 2, ANBP 2 2, ASP 2 2, ASBP 2 2, ADP 3 0, ADBP 3 0, ACNP 1, ACNBP 1, available in special version for higher pressure. Series Max. flow rate Max. pump pressure Max. viscosity m³/h l/min bar mpa * s ASL 2, ASH Progressing cavity Macerators Progressing cavity Accessories Subject to technical changes. Series Max. flow volume m³/h AM S-1 80 at 3% dry substance ABM S-1 80 at 3% dry substance AM I at 3% dry substance ABM I-1 80 at 3% dry substance Pump accessories: Drives: Power transmitting parts: Safety equipment: Pump skid accessories: Static pressure head m Stator adjustment devices, electric heating units, bridge breakers. Electric motors, gear motors, variable gearbox, reduction gearbox, combustion motors, pneumatic and hydraulic drives. Couplings, V-belts, toothed belt drives, other transmission devices. Bypass lines with safety or control valve, dry-running protection systems (conductive, capacitive, thermal etc.). Electric, hydraulic or pneumatic control devices, separators, dosing equipment, barrier fluid and circular systems for shaft seals, fittings, flanges, hoses. ALLWEILER GmbH Postfach Bottrop Kirchhellener Ring Bottrop Germany Tel. +49 (0) Fax +49 (0) service-ge@allweiler.de Internet: VM 624 GB/ Ident-Nr