Group 1 Gear Pumps Technical Information General Information

Transcription

1 General Information OVERVIEW The Sauer-Danfoss Group is a range of peak performance fixed-displacement gear pumps. Constructed of a high-strength extruded aluminum body with aluminum cover and flange, all pumps are pressure-balanced for exceptional efficiency. The flexibility of the range, combined with high efficiency and low noise, makes the pumps in this series ideal for a wide range of applications, including: turf care, aerial lifts, material handling, and power packs. Group gear pumps: SNP CO SKP SC SNP FR F F F FETURES ND ENEFITS Gear pump attributes: Up to displacements from. to cm /rev [from.7 to.7 in /rev] Continuous pressure rating up to bar [ psi] Speeds up to min - (rpm) SE, ISO, and DIN mounting flanges and shafts Compact and lightweight vailable as unidirectional and bi-directional motors also You can combine groups, and to make multi-stage pumps Quiet operation vailable with integral relief valve, Sauer-Danfoss. ll rights reserved. Printed in Europe. Sauer-Danfoss accepts no responsibility for possible errors in catalogs, brochures and other printed material. Sauer -Danfoss reserves the right to alter its products without prior notice. This also applies to products already ordered provided that such alterations can be made without affecting agreed specifications. ll trademarks in this material are properties of their respective owners. Sauer-Danfoss and the Sauer-Danfoss logotype are trademarks of the Sauer-Danfoss Group. Front cover illustrations: F, F, F, F 9, F and P. L Rev. /

2 General Information PUMP DESIGN SEP SEP is available in a limited displacement range. In addition to European flange and shaft configurations (code SC, CO, and FR), the range includes special shafts and flanges for power pack applications. SEP has a lower pressure rating than SNP and SKP. SNP SNP is available in a limited displacement range but with higherpressure ratings than the SEP. This is because of DU bushings used in its design. SNP pumps only include European flange and shaft configurations (code CO, SC, and FR). SNP CO (cut away) F SKP SKP has a larger diameter shaft than either the SEP or SNP. It spans the complete displacement range at higher pressures than the SEP and SNP. Configurations include European and SE flanges and shafts (code CO, CI, SC, and CI). SNI Sauer-Danfoss offers an optional integral relief valve integrated in the rear cover. It is drained internally and directs all flow from the pump outlet to the inlet when the outlet pressure reaches the valve setting. SNI pumps only include European flange and shaft configurations (code CO, SC, and FR). SNI FR (cut away) F 9 L Rev. /

3 General Information TECHNICL DT Specifications for the SNP, SEP and SKP Group gear pumps. Pump model Displacement cm /rev [in /rev] SNP and configuration Peak pressure Rated pressure bar [psi]. [.7].7 [.9].9 [.]. [.]. [.9]. [.].9 [.].9 [.9] [] 9 [7] 7.9 [.] 7 [] [7] Minimum speed at - bar Min. speed at bar min - (rpm) to rated pressure Maximum speed SEP and configuration Peak pressure Rated pressure bar [psi] [] [] [] [] [] [] [] [] [] [] [] [] [] [] 9 [7] 7 [] [] [] Minimum speed at - bar Min. speed at bar min - (rpm) to rated pressure Maximum speed SKP* and configuration Peak pressure Rated pressure bar [psi] [] [9] [9] 9.9 [.7] 7 [] [7]. [.7] [] [7] Minimum speed at - bar Min. speed at bar min - (rpm) to rated pressure Maximum speed ll (SNP, SEP, SKP) Weight Moment of inertia of rotating components Theoretical flow at maximum speed kg [lb] x - kg m [x - lb ft ] l/min [US gal/min]. [.]. [77].7 [.]. [.].7 [9]. [.].9 [.]. []. [.]. [.]. []. [.77]. [.].7 []. [.]. [.]. []. [.7]. [.] 7. [].7 [.]. [.7] 9. [] 7.7 [.7].9 [.]. [7].77 [.]. [.]. [7] 9. [.]. [.] 7. [7] [.] * SKP is a special version of the SNP. It is designed to accommodate an SE 9T / DP-tooth splined shaft for higher torque applications. C Caution The rated and peak pressure mentioned are for pumps with flanged ports only. When threaded ports are required a de-rated performance has to be considered. To verify the compliance of an high pressure application with a threaded ports pump apply to a Sauer-Danfoss representative. L Rev. /

4 Model Code MODEL CODE C D / Type Code SNP SKP SEP SNI Description Standard gear pump High torque gear pump Medium pressure gear pump Gear pump with integral relief valve Displacement Code Description SNP SKP SEP SNI.. cm /rev [.7 in /rev].7.7 cm /rev [.9 in /rev]..9 cm /rev [. in /rev].. cm /rev [. in /rev].. cm /rev [.9 in /rev].. cm /rev [. in /rev]..9 cm /rev [. in /rev]..9 cm /rev [.9 in /rev] cm /rev [. in /rev]..9 cm /rev [.7 in /rev].. cm /rev [.7 in /rev] C Direction of rotation Code Description SNP SKP SEP SNI D Right (Clockwise) S Left (Counterclockwise) D Shaft/mounting flange/port configuration Code Description SNP SKP SEP SNI CO Tapered shaft :/European -bolt flange/european flanged ports CO Tapered shaft :/European -bolt flange/european flanged ports CI Parallel shaft. mm/european -bolt flange/european flanged ports CI Parallel shaft.7 mm/se - flange/se O-ring boss ports SC DIN splined shaft/european -bolt flange/european flanged ports SC SE splined shaft/se - flange/se O-ring boss ports FR Sauer-Danfoss tang shaft/threaded metric ports Legend: = Standard = Optional = Not vailable L Rev. /

5 Model Code MODEL CODE (continued) E F G / E Variant code (-letter code describes variants to standard configuration) Code LN V** Description FR (configuration without shaft seal) Integral relief valve/pressure setting/pump speed for relief valve setting (min - [rpm]) see section Variant codes, page F Version (value representing a change to the initial project) Code Description. Initial project [*LEVE LNK] 9 or Z It should be reserved to Sauer-Danfoss G Port type (if other than standard) Code Description. Standard port for the flange type specified [*LEVE LNK] Flanged port with threaded holes in X pattern (German standard ports), centered on the body C Flanged port with threaded holes in + pattern (European standard ports) D Threaded metric port E Threaded SE O-ring boss port F Threaded GS (SPP) port L Rev. / 7

6 Determination of Nominal Pump Sizes SED ON SI / US UNITS Use these formulae to determine the nominal pump size for a specific application: Metric system Inch system Output flow: Vg n η v Q = l/min Vg n η v Q = [US gal/min] Input torque: M = Vg p π η m Nm M = Vg p π η m [lbf in] Input power: M n Q p P = = kw 9 η t M n Q p P = = [hp]. 7 η t Where: SI units [US units] Vg = Displacement per rev. cm /rev [in /rev] p = p HD - p ND bar [psi] n = Speed min - (rpm) η v = Volumetric efficiency η m = Mechanical (torque) efficiency η t = η v η m = Overall efficiency p HD = Outlet pressure bar [psi] p ND = Inlet pressure bar [psi] L Rev. /

7 System Requirements PUMP DRIVE DT FORM Photocopy this page and fax the complete form to your Sauer-Danfoss representative for an assistance in applying pumps with belt or gear drive. This illustration shows a pump with counterclockwise orientation: Optimal radial load position 9 o 9 o α α Inlet port o o o o Inlet port o o P a a d w d w P E pplication data Item Value Unit Pump displacement cm /rev [in /rev] Rated system pressure Relief valve setting bar psi Pump shaft rotation left right Pump minimum speed min - (rpm) Pump maximum speed Drive gear helix angle (gear drive only) degree elt type (gear drive only) V notch elt tension (gear drive only) P N lbf ngular orientation of gear or belt to inlet port α degree Pitch diameter of gear or pulley d w mm in Distance from flange to center of gear or pulley a L Rev. /

8 Pump Performance PUMP PERFORMNCE GRPHS The graphs on the next few pages provide typical output flow and input power for Group pumps at various working pressures. Data were taken using ISO VG petroleum /mineral based fluid at C (viscosity at mm /s [cst]). [.] [.] [.] [.] [.] [.] SEP/. SNP/. SKP/. bar bar bar bar only SNP and SKP [] [] [] [] [.] [.] [.] [.] [.] [.] [.] [.] [.] 7 SEP/.7 SNP/.7 SKP/.7 bar bar only SNP and SKP bar bar [] [] [] [] [] [] [] Speed min - (rpm) P E Speed min - (rpm) P E [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] 9 7 SEP/. SNP/. SKP/. bar bar bar bar only SNP and SKP Speed min - (rpm) [] [] [] [] [] [] [] P E [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] 9 7 SEP/. SNP/. SKP/. bar bar only SNP and SKP bar bar Speed min - (rpm) [] [] [] [] [] [] [] P E L Rev. /

9 Pump Performance PUMP PERFORMNCE GRPHS (continued) [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] 9 7 SEP/. SNP/. SKP/. bar bar bar bar only SNP and SKP 7 [9] [] [7] [] [] [] [] [] [] [.] [.] [.] [.] [.] 9 [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] 7 SEP/. SNP/. SKP/. bar bar only SNP and SKP bar bar 7 [] [9] [] [7] [] [] [] [] [] [] Speed min - (rpm) P E Speed min - (rpm) P E [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] 9 7 SEP/. SNP/. SKP/. bar bar bar bar 7 [] Speed min - (rpm) P E Speed min - (rpm) only SNP and SKP [] [9] [] [7] [] [] [] [] [] [] P 7E [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] SEP/. SNP/. SKP/. 7- bar bar 7 bar only SKP bar bar [] [] [] [] [] [] [] L Rev. /

10 Pump Performance PUMP PERFORMNCE GRPHS (continued) [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] SEP/7. SNP/7. SKP/7. bar only SKP bar bar - bar - Speed min (rpm) [] [] [] [] [] [] [] [] P E [7.] [7.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] [.] SKP/. bar bar bar Speed min - (rpm) [] [] [] [] [] [] [] [] P 9E [.] [9.] SKP/. [.] [.] [.] [.] [.] [.] bar bar bar bar [] [] [] [] [] Speed min - (rpm) [] P E L Rev. / 7

11 Product Options SHFT, FLNGE, ND PORT CONFIGURTIONS Shaft, flange and port configurations Pump Code Shaft Flange Port SEP SNP CO : tapered. mm [. in] pilot Ø European -bolt European flanged port + pattern SKP CO : tapered mm [.] pilot Ø European -bolt European flanged port + pattern SKP CI mm [.7 in] parallel mm [.] pilot Ø European -bolt European flanged port + pattern SKP CI.7 mm [. in] parallel SE - -bolt Threaded SE O-ring boss SEP SNP SC -teeth splined m =.7 α = o. mm [. in] pilot Ø European -bolt European flanged port + pattern SKP SC 9-teeth splined SE - SE - -bolt Threaded SE O-ring boss SEP SNP FR Sauer-Danfoss tang Sauer-Danfoss tang Threaded metric port L Rev. /

12 Product Options SHFT OPTIONS Direction is viewed facing the shaft. Group pumps are available with a variety of tang, splined, parallel, and tapered shaft ends. Not all shaft styles are available with all flange styles. Valid combinations and nominal torque ratings include: Shaft availability and torque capability / Shaft Mounting flange code with maximum torque in Nm [lbf in] Code Decription CO Taper : [] [] - - SC Spline T-, m=.7, alfa= o [] SC SE spline J 9-9T-/DP [] CI Parallel mm [.7 in] - [] - - CI Parallel.7 mm [. in] [] FR Sauer-Danfoss tang - - [] - Sauer-Danfoss recommends mating splines conform to SE J9 or DIN. Sauer-Danfoss external SE splines have a flat root side fit with circular tooth thickness reduced by.7 mm [. in] in respect to class fit. Dimensions are modified to assure a clearance fit with the mating spline. C Caution Shaft torque capability may limit allowable pressure. Torque ratings assume no external radial loading. pplied torque must not exceed these limits, regardless of stated pressure parameters. Maximum torque ratings are based on shaft torsional fatigue strength. MOUNTING FLNGES Sauer-Danfoss offers many types of industry standard mounting flanges. This table shows order codes for each available mounting flange and its intended use: / Flange code Intended use European. mm -bolt European mm -bolt Sauer-Danfoss standard tang drive SE - L Rev. / 9

13 Product Options PORT CONFIGURTIONS Standard port configurations This table lists standard porting offered with each mounting flange: / Code Description Standard on C Flanged port with threaded holes in + pattern (European standard), flanges D Threaded metric port flange E Threaded SE O-ring boss port flange Nonstandard port configurations Each mounting flange comes with a standard port style. The code is only required when ordering nonstandard ports. Various port configurations are available on Group pumps. They include: European standard flanged ports German standard flanged ports Gas threaded ports (SPP) O-ring boss (following SE J9/ [ISO 9-] UNF threads, standard) table of dimensions is on the next page. Here are a few nonstandard port configuration codes: / Code C D E F Description Flanged port with threaded holes in X pattern (German standard), centered on the body Flanged port with threaded holes in + pattern (European standard) Threaded metric port Threaded SE O-ring boss port Threaded GS (SPP) L Rev. /

14 Product Options PORTS These ports are available: C D F E o C ( holes min. full thd. [.9] deep) H ( holes min. full thd. [.9] deep) F G E E D P 9E Ports dimensions Model code* C D F E Standard port for flange code / nonstandard (ports centered on body) nonstandard Type (displacement) C F G H E E D. Inlet [.] [.] M [.] [.] M Mx. / Gas (SPP) ¾ UNF Outlet [.] [.] M [.] [.] M Mx. / Gas (SPP) 9/ UNF.7 Inlet [.] [.] M [.] [.] M Mx. / Gas (SPP) ¾ UNF Outlet [.] [.] M [.] [.] M Mx. / Gas (SPP) 9/ UNF. Inlet [.] [.] M [.] [.] M Mx. / Gas (SPP) ¾ UNF Outlet [.] [.] M [.] [.] M Mx. / Gas (SPP) 9/ UNF. Inlet [.] [.] M [.] [.] M Mx. / Gas (SPP) ¾ UNF Outlet [.] [.] M [.] [.] M Mx. / Gas (SPP) 9/ UNF. Inlet [.] [.] M [.] [.] M Mx. / Gas (SPP) ¾ UNF Outlet [.] [.] M [.] [.] M Mx. / Gas (SPP) 9/ UNF. Inlet [.] [.] M [.] [.] M Mx. / Gas (SPP) ¾ UNF Outlet [.] [.] M [.] [.] M Mx. / Gas (SPP) 9/ UNF. Inlet [.] [.] M [.] [.] M Mx. / Gas (SPP) ¾ UNF Outlet [.] [.] M [.] [.] M Mx. / Gas (SPP) 9/ UNF. Inlet [.] [.] M [.] [.] M Mx. / Gas (SPP) ¾ UNF Outlet [.] [.] M [.] [.] M Mx. / Gas (SPP) 9/ UNF 7. Inlet [.] [.] M [.] [.] M Mx. / Gas (SPP) ¾ UNF Outlet [.] [.] M [.] [.] M Mx. / Gas (SPP) 9/ UNF. Inlet [.] [.] M [.] [.] M Mx. / Gas (SPP) ¾ UNF Outlet [.] [.] M [.] [.] M Mx. / Gas (SPP) 9/ UNF. Inlet [.] [.] M [.] [.] M Mx. / Gas (SPP) ¾ UNF Outlet [.] [.] M [.] [.] M Mx. / Gas (SPP) 9/ UNF * Mark only if desired porting is nonstandard for the flange code selected. Otherwise, mark. L Rev. /

15 Product Options INTEGRL RELIEF VLVE SNI Sauer-Danfoss offers an optional integral relief valve integrated in the rear cover. It is drained internally and directs all flow from the pump outlet to the inlet when the outlet pressure reaches the valve setting. C Caution When the relief valve is operating in bypass condition, rapid heat generation occurs. If this bypass condition continues, the pump prematurely fails. The reason for this is that it is a rule, not an exception. Valve performance graph psi bar With mineral cst Minimum valve setting l/min US gal/min P E INTEGRL RELIEF VLVE COVERS SNI Dimensions max 7. [.9] max.. +. [+.9] [.] max. V -. [-.] For configuration only P E Integral relief valve and covers dimensions Type (displacement) Dimensions mm [in] V 9. [.7]. [.] 97 [.9]. [.] 99 [.99]. [.] [.97] 9. [.] [.] 9. [.] [.] 9. [.7] 7 [.] 9. [.799]. [.]. [.] [.7] 9. [.] 9 [.79]. [.] 7 [.9]. [.9] For configuration (SE -) dimension and V have to be increased. mm [.77 in]. L Rev. /

16 Product Options VRINT CODES FOR ORDERING INTEGRL RELIEF VLVES These tables detail the various codes for ordering integral relief valves: S N I / V Pump speed for RV setting Code min - (rpm) Not defined C E F G K I L M N O Pressure setting Code bar [psi] No setting No valve C [] D [] E [] F [] G [] K [7] L [7] M 7 [] N [] O 9 [] P [] Q [9] R [7] S [] T [] U [] V 7 [] W [] X [] Y [] Z [] INTEGRL RELIEF VLVE SCHEMTIC Valve schematic Integral relief valve (internal drain) o i i = inlet o = outlet P E L Rev. /

17 Dimensions SNP CO ND SC Standard porting This drawing shows the standard porting for CO and SC vailable in Series SNP only. mm [in] CO SC 9 [.] max Ø. [. ] X :. ±. [. ±.] Ø 9. [.7] Cone reference diameter. [.]. [.] M7-g. [.] Pilot width (min full thd [.9] deep). [.] Distance from front flange to cone reference diameter. [.] E/e [ ] [ ] ±. [.] D/d C/c ±. [.]. [.7] max (. [.] max) (. [.] max) (7.9 [.].7 [.]. [.] Ø 7. - [.-.] Ø.7 [.9] X ±. [. ±.] body widht. [.] 9. [.7] max 7. [.9] max. [.] [.]. [.77] Distance from front flange to shoulder Ø.9 -. [.9 -. ] Spline: Z= M=.7 alfa= Circular tooth thickness:.-. [. -.] Internal spline dia: 9.- [.-.9] P E SNP CO and SC dimensions Type (displacement) Dimension Inlet Outlet 7.7 [.] 79. [.]. [.]. [.9] 9. [.]. [.]. [.]. [.]. [.] 7. [.] C [.7] D [.] E M c [.7] d [.] e M. [.7] 9. [.]. [.7] 9. [.].7 [.] 97. [.9]. [.99]. [.9] Model code example SNP SNP/. D CO..._. SNP/ S SC..._. Maximum shaft torque CO [] N m [lbf in] SC [] For further details on ordering, see Model code, pages and 7. L Rev. /

18 Dimensions SKP CO ND CI Standard porting This drawing shows the standard porting for CO and CI. vailable in Series SKP only. mm [in] CO [.7] max CI. [.]. [.] Distance from front flange to cone reference diameter 7. [.7] Pilot width [. -. ] X. ±. [. ±.] Ø.9 [.9] Cone reference diameter.7 [.] : Mx-g -. [.] E/e. [. ] ±. [±.] C/c D/d. [.7] max ±. [±.] (min full thd mm [.9] deep) (. [.] max) (. [.9] max) (7. [.7]). [.99]. [.9] Ø.7-7. [.-.9] X. ±. [.77 ±.] body width. [.] 7.9 [.79] max 7. [.9] max. [.]. [.7] Distance from front flange to shoulder -.7 [.] [.7 -. ] M x -g [. -.] [.9 -. ] Ø.7 [.9] [. -. ] P E SKP CO and CI dimensions Type (displacement) Dimension Inlet Outlet 7.7 [.] 79. [.]. [.]. [.9] 9. [.]. [.]. [.]. [.]. [.] 7. [.]. [.7] 9. [.] C [.7] D [.] E M c [.7] d [.] e M. [.7] 9. [.].7 [.] 97. [.9]. [.99]. [.9]. [.]. [.9]. [.]. [.7] Model code example SKP SKP/. D CO..._. SKP/. S CI..._. Maximum shaft torque CO [] N m [lbf in] CI [] For further details on ordering, see Model code, pages and 7. L Rev. /

19 Dimensions SNP FR Standard porting This drawing shows the standard porting for FR. vailable in Series SNP only. mm [in] FR ±. [±.9]. [.]. [.] [. -.] X. ±. [. ±.] 7. [.7] Pilot width [. -.] [ ] ±. [±.]. ±. [.9 ±.]. [.] max. [.7] 9. [.7]. [.7]. ±. [. ±.] body width C/c. [.9] Ø. [.] X Ø.-9. [.-.] 7. [.9] max OR. x.7. [.79].7 [.9] min. [.7] P E SNP FR dimensions Type (displacement) Dimension 7.7 [.] 7. [.7]. [.] 7. [.] 9. [.] 7. [.9]. [.] 7. [.97]. [.] 77. [.]. [.7] 79. [.]. [.7]. [.9].7 [.]. [.]. [.99] 9. [.7] Inlet C M x., THD [.7] deep Outlet c M x., THD [.7] deep M x., THD [.7] deep Model code example SNP SNP/. D FR..._. Maximum shaft torque FR N m [lbf in] [] For further details on ordering, see Model code, pages and 7. version without shaft seal is available (variant LN). L Rev. /

20 Dimensions SKP CI ND SC Standard porting This drawing shows the standard porting for CI and SC. vailable in Series SKP only. mm [in] CI SC 7. [.] max 9. [.7] 7.9 [.] Distance from front flange to shoulder. [.] Pilot width ±. [.]. [.]. [.7] max. [.] R. [.] max 7.9 [.] 7. [.] Distance from front flange to shoulder 9. [.7]. -. [. -. ]. ±. [. ±.].7 -. [. -. ] - C/c.9-. [.9-.9] Straight thread O-Ring boss. [.7] max.-. [.-.]. ±. [.77 ±.] body width Ø.7 [.] X 7. [.9] max. [.]. -.7 [. -. ] Splined: SE J9-9T-/DP Flat root side fit Circular tooth thickness:.7mm [.] less than class fit. -.[. -. ] P E SKP CI and SC dimensions Type (displacement) Dimension. [.]. [.7]. [.9]. [.]. [.7] 7. [.]. [.77] 9. [.]. [.] 9. [.] 7. [.] 9. [.]. [.9] 9. [.7] Inlet C ¾ UNF, THD. [.] deep Outlet c 9/ UNF, THD.7 [.] deep. [.]. [.]. [.]. [.7] 9. [.] 7. [.]. [.]. [.9] Model code example SKP SKP/. D CI..._. SKP/ S SC..._. Maximum shaft torque CI [] N m [lbf in] SC [] For further details on ordering, see Model code, pages and 7. L Rev. / 7