cast iron gear pump - walvoil.com · cast iron gear pump 2spw general working conditions...
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Walvoil S.P.A. • 42124 Reggio Emilia • Italy • Via Adige, 13/D • Tel.+39.0522.932411 • Fax +39.0522.300984www.walvoil.com
2SPWCast Iron Gear Pump
Cast Iron Gear Pump2SPW
GENERAL WORKING CONDITIONS
Displacementfrom 14 to 31.5 cm�/rev from 0.85 to 1.92 in�/rev
Max continuous pressure up to 250 bar - 3600 psi
Fluidhydraulic mineral
oil-based
Fluid temperature range
with NBR (buna N)sealsfrom -20 to +80 °C from -4 to +176 °F
with FPM (viton) sealsfrom -20 to +100 °C from -4 to +212 °F
ViscosityRecommended from 15 to 92 mm�/s (cSt)
Permitted for starting 2000 mm�/s (cSt)
Max level of contamination
Recommended for operating pressure > 150 bar (2150 psi)
20/18/15 ISO 4406 class 9 (NAS 1638)
Recommended for operating pressure < 150 bar (2150 psi)
21/18/15 ISO 4406class 10 (NAS 1638)
� Long life expectancy� High effi ciencies� High pressure limits� Reduced number of components� Reduced overall dimension
GROUP
2SPW Displacement Max continuous
pressureMax intermittent
pressureMax peakpressure
Max rotationspeed
cm�/giro in�/rev bar psi bar psi bar psi rpm
2SPW 140 14.0 0.85 250 3,600 280 4,060 300 4,350 3500
2SPW 160 16.5 1.01 250 3,600 280 4,060 300 4,350 3500
2SPW 190 19.5 1.19 250 3,600 280 4,060 300 4,350 3500
2SPW 220 22.5 1.37 250 3,600 270 3,900 300 4,350 3500
2SPW 260 26.0 1.59 230 3,330 250 3,600 280 4,060 3000
2SPW 310 31.5 1.92 200 2,900 240 3,480 250 3,600 2800
Tecnichal data _____________________________________________________________________________________________
Walvoil presents the new range of 2SPW Cast Iron Pumps.These pumps are particularly suitable for all applications where traditional aluminum pumps are used at the limit of their performance; eg. for installation on mobile equipment intended for heavy duty operating cycles, where pressures or mechanical stresses are typically higher.Its modular construction allows the same versatility of the Group 2 series with aluminum body, while maintaining the possible confi gurations in terms of fl anges, shafts and integrated valves.
Cast Iron Gear Pump2SPW
95 3.74
87 3.42
118
4.64
116.
24.
57
47.4
1.86
130.45.13
106.44.18
120.47
6.40.25
82.6
3.25
B
A15
.70.
61
Dimensions _________________________________________________________________________________________________
GROUP
2SPWPorts Threading
BSP UN-UNF
IN OUT DRAIN IN OUT DRAIN
2SPW 140
G 3/4SAE 12
1”1/16-12 UN
2SPW 160
2SPW 190
2SPW 220
2SPW 260
2SPW 310
GROUP
2SPWA B
mm in mm in
2SPW 140 52.7 2.075 109.6 4.3152SPW 160 54.8 2.157 113.8 4.4802SPW 190 57,3 2.256 118.8 4.6772SPW 220 59.8 2.354 123.8 4.8742SPW 260 62.7 2.469 129.6 5.1022SPW 310 66.9 2.636 138.0 5.437
5
(psi)(in3/rev)0 0.4 0.8 1.2 1.6 2.0
0
1000
2000
3000
4000
Displacement
Con
tinuo
us m
ax p
ress
ure
- (0.
24)
- (0.
37)
- (0.
52)
- (0.
67)
- (0.
85)
- (1.
01)
- (1.
19)
- (1.
37)
- (1.
59)
- (1.
92)
0
50
100
150
200
250
300(bar)
0 5 10 15 20 25 30 35(cm3/giro)
4 6 8,5
11 14 16,5
19,5
22,5
26 31.5
Series 2SP - 2SPW comparisonContinuous max. pressure vs. displacement
Series 2SP Series 2SPW
Walvoil S.P.A. • 42124 Reggio Emilia • Italy • Via Adige, 13/D • Tel.+39.0522.932411 • Fax +39.0522.300984www.walvoil.com
2SPWCast Iron Gear PumpPompe ad Ingranaggi in Ghisa
2SPW
Confi guration with priority valve built in the back cover of the pump
Dimensions: confi guration with priority walve ___________________________________________________
65.4
2.57
59 2.32
153.66.04
123.54.86
18 0.70
18 0.70
53 2.08
132.
45.
21
GROUP
2SPW
Shaft type
10Tapered
1:8
11Tapered
1:5
12EUR
Parallel shaft
13SAEA
Parallel shaft
14SAEA
9T splined
15DIN5482 9T splined (26/24)
16 DIN5482 9T splined
(20)
40SAE 10T splined (52)
41SAE 10T splined (37.5)
42SAEA 11T splined (55.6)
43SAEA 11T splined (31.5)
44SAEA 11T splined (13.5)
◊ ● ◊ ● ● ● ●
E
UR
● ● ● ◊ ◊ ● ● ● ● ● ● ●
SA
EA
● ● ● ◊ ◊ ● ● ● ● ● ● ●
SA
EB
D1WGCM01E - 1st edition October 2017
◊ = STANDARD COMBINATION● = AVAILABLE COMBINATION
Combinations available with cast iron fl anges ___________________________________________________