External gear pumps Type G2, Series 4X

Transcription

1 E 1 /.99 External gear pumps Type G2, Series X E 1 /.99 NS to 22 up to 2 bar up to 22. cm eplaces:.98 New principle of housing sealing, thereby giving a very long housing service life ong seal service life also at maximum temperatures Plain bearings for high loads Mono-block bearing Simple and robust design New prinicple of hydrostatic gap compensation Common suction port for double pump, on request Mono block intermediate flange 1 PF 2 G2-X/11 C 2 MB 1 PFG2-X/11 2 MK+ 1 PFG2-X/11 N 2 MDN + 1 PFG2-X/8 N 2 MD Special version (S17) with a common suction port, on request Type G2 hydraulic pumps are self-priming external gear pumps. Their task is to produce a constant flow and at the same time pass on the required forces. They mainly consist of the housing (1), mounting flange (2), drive shaft (), 2 bearing blocks (), bearing bush () and discs (6) for the hydrostatic gap compensation. The gears separating during the rotational movement releases the gear chambers. The negative pressure resulting from this, as well as the atmospheric pressure acting on the pressure fluid level in the tank causes the pressure fluid to flow to the pump from the tank. This pressure fluid fills the gear chambers and is moved, in the direction of the arrow (see sectional drawing), from the the suction to the pressure side. Here the gears mesh once more and push the pressure fluid out of the gear chambers and prevent return flow to the suction chamber. In order to avoid hard and jolting running of the pump, small unloading grooves are cut into the sides of the bearing blocks (). The "compressed fluid" is thereby passed into the pressure chamber. 7 Suction side 8 Pressure side 9 Driven gear (clockwide rotation) 1 Driven gear /12

2 E 1 /.99 Ordering details 1 PF 2 G2 X * Series to 9 = X ( to 9: unchanged installation and connection dimensions) (Nominal flow) NS cm =. cm = 8.2 cm 8 = 8 11 cm 11 = cm 1 = 1 1 ) 16.2 cm 16 = cm 19 = 19 1 ) 22. cm 22 = 22 rotation Anti-clockwise rotation = Tapered shaft 1: Ø 17 mm = C Splined shaft SAE-A /8", 9 teeth Tongued shaft with coupling for single pump, = N centre/rear pump = N Tapered shaft 1: Ø 2 mm for front bearing = S Cylindrical shaft ISO Ø 18 (with 1 ports) = A Tapered shaft 1:8 Ø 17. mm = H Ordering examples for single pumps: 1PF2G2-X/C2MB Material no. 61 1PF2G2-X/16C2MBK Material no. 611 (only front pump) 1PF2G2-X/8N2MD Material no (only rear pump) Ordering example for multiple pumps 1PF2G2-X/8C2MBK Material no PF2G2-X/N2MD Material no Combination parts G2/8 + G2/ Further details in clear text No code = Single pump K = Front pump for combination = ear pump for combination N = Centre pump for combination B ectangular flange Ø 8 mm P = 2-hole fixing Ø mm = SAE-A-2-hole flange Ø 82. mm M = 2-hole fixing Ø 2 mm O ectangular flange Ø 6. mm A = Front bearing Ø 8 mm D = Combination flange for G2 (rear and centre pump) H = Combination flange for G, G M = NB seals up to 8 C K = FKM shaft seal ring other seals NB (connection to diesel engines) 2 = Suction and pressure port square flange, metric mounting threads 1 = Pipe thread to ISO 228/1 (with cylindrical shaft A) = Suction and pressure port square flange, metric mounting threads at the vertical and horizontal connection axis (Italian version) Note: Only pump types which are listed in the catalogue sheets and have material numbers are available. Other types on request. Flange fittings for pipe connections (see page 12) and pump mounting brackets to catalogue sheet E 2 11 for rectangular flanges version "B" have to be ordered separately. Multiple pumps are supplied completely assembled. The combination parts, however, have to be listed as separate items within an order (see ordering example). The material no. of the combination parts is entered during order processing. It is possible to order the combination parts as a kit on their own. For the ordering code see the multiple pumps example. The kit consists of 2 tie rods and 2 nuts. The coupling is included within the scope of supply of the rear or centre pump. 1PF2G2-X/22C2MBK Material no PF2G2-X/11N2MDN Material no PF2G2-X/N2MD Material no. 612 Combination parts G2/22 + G2/11 + G2/ Symbols Single pump Double pump P P P P P S S S S On request 2/12

3 Technical data (for applications outside these parameters, please consult us!) Pressure fluid: Mineral oil to catalogue sheet E 7 7. For operation with HFC-, HFD-, HETG-, HEPG- and HEES- fluids see E 1 2-S. Pressure fluid temperature range: 1 to + 8 C. For higher temperatures please consult us Ambient temperature range: 1 to + 6 C Viscosity range: 1 bis mm 2 /s (recommended viscosity) 1 mm 2 /s (permissible start-up viscosity) 6 Flow characteristic curves NS NG22 p = 2 bar p = 21 bar NS NG19 NS NG16 NG1 NS E 1 /.99 Maximum permissible degree of contamination of the pressure fluid is to S 168, class 1. We, therefore, recommend a filter with a minimum retention rate of ß 2 1. To ensure a long service life we recommend class 9, S 168; achievable with a filter retention rate of ß 1 1. Drive type: elastic coupling, for other drive types please consult us Installation: optional the pump may only be driven in the given direction of rotation Weight: see table for individual pump types Nominal size Nominal flow cm Operating pressure, inlet: bar p abs min.7 absolute pressure p abs max. Max. continuous pressure p1 bar Max. peak pressure p2 (1 6 peaks) bar Max. speed at continuous pressure p1 min -1 2 Min. speed at p = 18 bar min Min. speed at p1 min Characteristic curves (measured at ν = 1 mm 2 /s and ϑ = C) A = Cylindrical shaft Ø 18 mm T max = 7 Nm C = Tapered shaft 1 : Ø 17 mm T max = 1 Nm = Splined shaft SAE-A/8" T max = 11 Nm N = Shaft with tongued coupling T max = 7 Nm S = Tapered shaft 1 : Ø 2 mm T max = 7 Nm NS NG 11 for front bearing 11 H = Tapered shaft 1 : 8 Ø 17, mm T max = 1 Nm Flow q V in /min 2 1 NS NG 8 NS NG NS NG Drive torque T in Nm NG22 NS NS NG 19 NS NG 16 NS NG 1 NS NG 11 NS NG 8 NS NG NS NG NG NS 1 NS NG /12

4 E 1 /.99 Characteristic curves (measured at ν = 1 mm 2 /s and ϑ = C) 2 NS NG 8 2 NS NG NS NG 1 2 NS NG NS NG 19 NS NG /12

5 Noise pressure level (measured at ν = 1 min -1, n = 1 mm 2 /s and ϑ = C) E 1 /.99 NS Measured in an anechoic chamber to DIN 6 part 26 in db(a) Distance microphone pump = 1 m Shaft end (Dimensions in mm) C Tapered shaft 1 :, Ø 17 mm Tightening torque: +1 7 Nm,2 Splined shaft SAE-A /8", 9T, 16/2 D/P and tooth thickness t = 2,7 -, ,8 M12 x 1, 1: Ø 17 Ø 1,6 Ø 17, Dimension is dependent on the flange type (see page 6) 1 S Tapered shaft 1 :, Ø 2 mm for front bearing N Tongued shaft with coupling for single pump, centre/rear pump 7,2,2 +,1 Tightening torque: 7 +1 Nm h7 11 ±,1 2 1,9 8 M1 x 1, d9 1: Ø 2 Ø 29 f7 Ø 2 Ø 7,,1 Ø 2 Ø 17,8 X "X" 1, 2 9, 2 O-ring and 2 coupling are included within the scope of supply ±,2 6, +,2 /12

6 E 1 /.99 Shaft end (Dimensions in mm) A Cylindrical shaft ISO Ø 18 mm H Tapered shaft 1 : 8, Ø 17, mm Tightening torque: +1 7 Nm 6h9 M12 x 1, h9 1,8 2, ø18js7 1:8 16,6 17, , 28 Unit dimensions, ordering details: (dimensions in mm, A = preferred types) 1 PF 2 G2-X/... A 1 MB Nominal size (see table) anti-clockwise = Cylindrical shaft Ø 18 mm Nominal Dimensions Material no. Weight size B D1 D2 Anti-clockwise in kg G 1/2 66A G 1/2 68A G 1/2 7A G / 2 72A G / 2 7A G / 2 76A B 7, ±,11 Ø 8 -,6 12, 1,, 118 D2 D1 8 ±,1 anti-clockwise (version "") viewed on the shaft end With clockwise rotation version "" the suction and pressure ports are exchanged! Suction side Pressure side Cylindrical shaft Ø 18 mm 6/12

7 Unit dimensions, ordering details: (dimensions in mm, A = preferred types) E 1 /.99 1 PF 2 G2-X/... C 2 MB Nom. size (see table) Anti-clockwise 7,2 1,x = B A Tapered shaft 1 : ; Ø 17 mm Nom. size Dimensions Material no. Weight B Anti-clockwise in kg A A A A A A A ±,11,6 Ø8, , 1,, ,2 +, 7,7 +,9 8 2*) 8±,1 1 *) Ø1 with NS and anti-clockwise (version "") viewed on the shaft end With clockwise rotation version "" the suction and pressure ports are exchanged! Suction side Pressure side Tapered shaft 1 : ; Ø 17 mm (see page ) 1 PF 2 G2-X/... C 2 KP Nom. size (see table) Anti-clockwise 7,2 B,x = Tapered shaft 1 : ; Ø 17 mm A Nom. size Dimensions Material no. Weight B Anti-clockwise in kg On request ±,1 Ø,2, 9 12, ±,1 6 1, 16,2 9 +, 1,,, 2*) Ø11,1 6±,1 1 *) Ø1 with NS and (M1 1.9) M A = 6 Nm anti-clockwise (version "") viewed on the shaft end With clockwise rotation version "" the suction and pressure ports are exchanged! Suction side Pressure side Tapered shaft 1 : ; Ø 17 mm (see page ) 7/12

8 E 1 /.99 Unit dimensions, ordering details: (dimensions in mm, A = preferred types) 1 PF 2 G2-X/... 2 M Nom. size (see table) Anti-clockwise 6 1x B 9 = A Splined shaft SAE-A/8" 9teeth 11, Nom. size Dimensions Material no. Weight B Anti-clockwise in kg A A A A A A , Ø82, h8 9 12, 7, ,2 9 *) Ø 1 with NS and 2*) Anti-clockwise (version "") viewed on the shaft With clockwise rotation version "" the suction and pressure ports are exchanged! 8 ±,1 Suction side Pressure side 1 Splined shaft (see page ) 1 PF 2 G2-X/... N 2 MM Nom. size (see table) Anti-clockwise ; 6 = 7,2 B A Shaft with tongued coupling Nom. size Dimensions Material no. Weight B Anti-clockwise in kg On request Ø2 f7 9 12, ±,1 6 1, 16,2 9 *) Ø 1 with NS and 2*) 6±,1 8 ±,1 (M1 1.9) M A = 6 Nm Ø11,1 Anti-clockwise (version "") viewed on the shaft With clockwise rotation version "" the suction and pressure ports are exchanged! Attention: With NS 19 and 22 pressure limitation due to maximum permissible torque (see page ). 1 Suction side Pressure side Tongued shaft with coupling (see page ) 6 Pump without shaft seal ring 8/12

9 Unit dimensions, ordering details E 1 /.99 (Dimensions in mm) 1 PF 2 G2-X/... S 2 MA Nom. size Dimensions Material no. Weight B Anti-clockwise in kg Nom. size (see table) Tapered shaft Anti-clockwise = 1 : ; Ø 2 mm On request Pump with front bearing to take up radial and axial forces (see below) A B 8 1,,x , ±,, Ø8,1 9 16,2 12, 1,, *) Ø 1 with NS and 2*) 8 ±,1 Anti-clockwise (version "") viewed on the shaft end with clockwise rotation version "" the suction and pressure ports are exchanged! Attention: With NS 19 and 22 pressure limitation due to maximum permissible torque at the front bearing (see page ). Front bearing, theoretical service life 1 Suction side Pressure side Tapered shaft 1 : ; Ø 2 mm (see page ) 7 b b = mm F' dyn in KN 6 2 F F a = b = 7 mm b = mm b = 2 mm b = 2 mm C dyn F' dyn 1 h = 6 ( ) n 6 n = Speed in min -1 h = Theorectical bearing life in hours F dyn ' = Equivalent dynamic load C dyn = Dynamic load constant 21,2 kn 1,2,,6,8 1, 1,2 1, 1, adial force F in KN 9/12

10 E 1 /.99 Unit dimensions, ordering details: (dimensions in mm, A = preferred types) 1 PF 2 G2-X/... H MO NS (see table) Anti-clockwise = Tapered shaft 1 : 8; Ø 17. mm NS Dimensions Material no. Weight B C D E F Anti-clockwise in kg M A On request M A On request M A On request M A M A On request M A On request M A On request M A On request. ø6, f7 ø17,,8 1,8 B 1 16,, , 87, 71, holes trous ø8, 2, 96 12, 28 ø,2 ø1, 8 holes trous M6x1 holes (version "") viewed on the shaft end With anti-clockwise rotation version "" the suction and pressure ports are exchanged! Seal kits (NB) øc ød trous E x F Suction side Pressure side Tapered shaft 1:8 ; Ø 17. mm (see page 6) Pump type Seal kit Shaft seal (all nominal sizes) Material no. Material no. 1 PF 2 G2-X/...C 2 MB PF 2 G2-X/...C 2 KP (FKM) 1 PF 2 G2-X/... 2 M PF 2 G2-X/...S 2 MA PF 2 G2-X/...N 2 MM 91 1 PF 2 G2-X/...H MO PF 2 G2-X/...A 1 MS Pump type Seal kit Shaft seal (all nominal size) Material- no. Material no. 1 PF 2 G2-X/...C 2 MBK PF 2 G2-X/...C 2 KPK (FKM) 1 PF 2 G2-X/... 2 MK PF 2 G2-X/...N 2 MD PF 2 G2-X/...N 2 MDN PF 2 G2-X/...H MDK PF 2 G2-X/...A 1 MSK Flange fittings for line connections Straight flange fitting Angled flange fitting Suction side Pressure side Pipe-Ø Material no. Pipe-Ø Material no Suction side Pressure side Pipe-Ø Material no. Pipe-Ø Material no For technical data see N All fittings are supplied complete with screws, O-ring, cutting ring and nut 1/12

11 E 1 /.99 Multiple pumps type G2, series X Pump I Pump II Technical data (for applications outside these parameters, please consult us) The same general parameters apply as with single pumps (see page ) Please note with multiple pumps the following is of particular importance: Nominal size cannot be used as pump 1. Pump I should have a higher load than pump II (pressure x flow). The individual pumps are separated on the suction side by a shaft seal ring (pumps can draw from different tanks). The drive shafts and the coupling piece between the pumps have limitations with regard to the transferable torque (see below). When selecting the multiple pumps it must be ensured that the sum of the torques does not excced the permissible values. Weight: See table of individual pump types Combination parts: plus, kg Drive torque T in Nm NG NS NG NS NG NS NG NS 1 NG NS NG NS 8 NG NS NG NS Permissible torques at shaft end: A= Cylinderical shaft Ø 18 mm T max = 7 Nm C= Tapered shaft 1: ; Ø 17 mm T max = 1 Nm = Splined shaft SAE-A /8" T max = 11 Nm H= Tapered shaft 1: 8; Ø 17. mm T max = 1 Nm N= Shaft with tongued coupling T max = 7 Nm Coupling between pump I and pump II T max = 7 Nm Pressure 11/12

12 E 1 /.99 Multiple pumps (dimensions in mm, A = preferred types) B C D B C C D 1 PF 2 G2-X/... C 2 MBK 1 PF 2 G2-X/... N 2 MDN 1 PF 2 G2-X/... N 2 MD Nom. size (see table) Ports (1, 2) Dim. C and D : Anti-clockwise = Shaft end (A, C, N, ) Front pump 8 11 Dim. C Dim. D 8,7 8, 86, 88,7 92,2 9,2 9,7 6, 8 8,7 8, , 9, 9 1, ear pump , 89, 91, 91,7 9,7 96 9,2 97,2 99, 99 97,2 99,2 11, 11 97,7 99,7 99,7 11, 8, 1,, 9, , 7, , Dim. B : see single pump Material numbers for front centre and rear pumps C2MBK 617 A 619 A 6111 A A A ear Centre Front 2MK C2KPK A1MBK N2MDN N1MDN N2MD N1MD 6122 A A A A A A A A A C2MBK ear Centre Front 2MK C2KPK A1MBK N2MDN N1MDN N2MD N1MD : Not available Mannesmann AG D-9781 ohr am Main Jahnstraße D ohr am Main Telefon 9 2 / 18- Telefax 9 2 / Telex Mannesmann exroth S.A. Division Sigma International BP 11-91, bd Irène Joliot-Curie F-696 Vénissieux cédex Tél Fax Télex /12 The specified data is for product description purposes only and may not be deemed to be guarateed unless expressly confirmed in the contract. All rights reserved Subject to revision