pvs piston pump thru shaft series - nachi america · pvs series variable volume piston pumps...
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PVS PISTON PUMPTHRU SHAFT SERIES
Dimensional Drawings
Energy-Saving Type with Drastically Reduced LossA NACHI-proprietary semi-circular barrel swash plate that receives pressure on its surface ensures a stable discharge volume at all times. This eliminates excess discharge volume, and enables the
effective use of power corresponding to the load cycle. This "energy-saving type" conserves energy, reduces power loss, and helps to reduce hydraulic costs.
Silent Type That Demonstrates Its Power QuietlyProprietary low-noise mechanisms are incorporated on the shoe, swash plate, valve plate, and other locations to ensure silent operation. In particular, a semi-circular barrel swash plate stabilizes operation characteristics to ensure silent operation.
PVS Piston Pump - Thru Shaft Series
Features
PVS-0B-8N3-K-E5737AVolume: .48 cu in (8 cc)Max. Operating Pressure: 3000 psiAllowable Peak Pressure: 3600 psiRotational Speed (max.): 1800/500 min ¹Rotational Direction: ClockwiseMounting Direction: Horizon for pump shaftControl Type: Pressure compensation typeMass: 16.9 lbsFluid: Anti-wear Hydraulic fluid ISO VG32-68Optimum OperatingViscosity: 20~200 centistokesTemperature Range: 40~140° FSuction Pressure: 4.3 psiDrain Back Pressure: 14 psi Peak Pressure: 28 psiFilteration Suction: 150 mesh Line: 10 micron
1. Add shaft side torque to head side torque, and handle total torque less than 95.5 N•m2. Pull total torque out of shaft side torque, and handle head torque less than 60 N•m
Setting of pressure and the displacement upon shipmentP: Minimum pressureq: Maximum pump capacity
-
Note:1. Before starting up the pump, fill the pump case with clean hydraulic operating fluid through the lubrication port (13.4 cu in)2. The maximum presure (set pressure + surge pressure) that can be momentarily allowed.3. Please refer to the standard catalog and instruction manual for the instruction of this pump.
9-10 ft lbs23-25 ft lbs
9-10 ft lbs
18-22 ft lbs
44-48 ft lbs
75-82 ft lbs
RotationDirection
Tandem-pump installationA sub-plate is necessary
(149.5)
14.5(5)(shaft end)
0-0.279
+0.0
50±0
.2
2.4±0.05
8
22
Involute spline specifications
Dp
Addendum circle diameter 15.4
FLAT ROOT SIDE FIT
0-0.2
Thru-drive allowable torque(TS: Shaft side pump, TH: Head side pump)
Case 1(at shaft side max)
Case 2(at head side max)
95.535.560
95.535.560
Torque N•m
T S max T H max T’ S max T’ H max
Case 1 T S max
T H max
T total
Torque N•m
Case 1 T’ S max
T’ H max
T’ total
T total T’ total
O-ringNBR-90 G50(JIS B 2401)
0-0.279
Involute splineSAE J498b
Flow rate adjusting screwLock nut tightening torque9-10 ft lbs
M8 thru4-
(for sub-plate)
Suction Port1•1/16-12UN-2BTightening torque75-82 lbs
46.52- 46.52-
(55) (55)
57 57
Discharge port3/4-16UNF-2BTightening torque44-48 ft lbs
28.5
2-28
.52-
(37)
(38)
Drain port9/16-18UNF-2BTightening torque23-25 ft lbs
219.5 (Max.)
18 49.5
(14 min.)
6
42.5
25.4 5
11
127.5
Name plate
(Discharge and Suction port)
149.5
162.5
0 -0.0
21 0 -0
.025
-0.0
36-0
.071
93
78
29
3
Pressureadjusting screwLock nuttightening torque
4.76 0-0.012
Key width
Lubrication portBSPP 1/4Tightening torque
(127
)
11
106.4
130
7749
PVS Series Variable Volume Piston Pumps
Dimensional DrawingsPVS-1B-16/22N3-K-E5737A
PVS-2B-35/45N3-KE5737A
Volume: 1 cu in (16 cc)/1.3 cu in (22cc)Max. Operating Pressure: 3000 psiAllowable Peak Pressure: 3600 psiRotational Speed (max.): 2000/500 min ¹Rotational Direction: ClockwiseMounting Direction: Horizon for pump shaftControl Type: Pressure compensation typeMass: 24 lbsFluid: Anti-wear Hydraulic fluid ISO VG32-68Optimum OperatingViscosity: 20~200 centistokesTemperature Range: 40~140° FSuction Pressure: 4 psiDrain Back Pressure: 14 psi Peak Pressure: 28 psiFilteration Suction: 150 mesh Line: 10 micron
-
1. Add shaft side torque to head side torque, and handle total torque less than 105 N•m2. Pull total torque out of shaft side torque, and handle head torque less than 60 N•m
Setting of pressure and the displacement upon shipmentP: Minimum pressureq: Maximum pump capacity
Note:1. Before starting up the pump, fill the pump case with clean hydraulic operating fluid through the lubrication port (18 cu in)2. The maximum presure (set pressure + surge pressure) that can be momentarily allowed.3. Please refer to the standard catalog and instruction manual for the instruction of this pump.
1054560
23-25 ft lbs
75-82 ft lbs
1057332
99-104 ft lbs
3.6-10 ft lbs 9-10 ft lbs
Torque N•m
Volume: 2.1 cu in (35cc)/2.7 cu in (45 cc)Max. Operating Pressure: 3000 psiAllowable Peak Pressure: 3600 psiRotational Speed (max.): 2000/500 min ¹Rotational Direction: ClockwiseMounting Direction: Horizon for pump shaftControl Type: Pressure compensation typeMass: 46 lbsFluid: Anti-wear Hydraulic fluid ISO VG32-68Optimum OperatingViscosity: 20~200 centistokesTemperature Range: 40~140° FSuction Pressure: 4 psiDrain Back Pressure: 14 psi Peak Pressure: 28 psiFilteration Suction: 150 mesh Line: 10 micron
-
1. Add shaft side torque to head side torque, and handle total torque less than 284 N•m2. Pull total torque out of shaft side torque, and handle head torque less than 90 N•m
Setting of pressure and the displacement upon shipmentP: Minimum pressureq: Maximum pump capacity
Note:1. Before starting up the pump, fill the pump case with clean hydraulic operating fluid through the lubrication port (39 cu in)2. The maximum presure (set pressure + surge pressure) that can be momentarily allowed.3. Please don’t adjust screw (* part) because it’s already been adjusted upon shipping.3. Please refer to the standard catalog and instruction manual for the instruction of this pump.
29.4
26.6
26.6
26.2
46.1
50.152.1
46.1
(80)
(120)144
4xM10depth16
Flow rate adjusting screwLock nut tightening torqueM12:42~46Nm
Suction Port
Discharge Port
88.553
6
-0 0.05
15192.5
(Discharge and Suction port)
222.5
69.5
6
38
3.9
28.18
Drain port 3/4-16UNF-2BTightening torque
59.8~65.8Nm
4xM10 depth16
6.35 +0-0.012
104
3
6513
144146
91
45
Pressure adjusting screwLock nut tightening torque
M8:12.5~13.8Nm
Lubrication port G3/8Tightening torque49~54Nm
Detail of Suction port
4xM10 depth16
237.5
SAEJ518b-1
SAEJ518b-1*1/4
30.2
58
.7
52.4
26.2
257.5
Key Width
172
172
106.4
130
Rotationdirection
Pressure adjusting screwLock nut tightening torque 42
Lubrication portBSPP 3/8
36-39 ft lbsTightening torque
382
11
(137
)
52
88
73
Flow rate adjusting screwLock nut tightening torque
Drain port9/16-18UNF-2BTightening torque
242 (Max.)
77.5 49.5
23 (Min.)
43
6
25.4 5
Key width4.76 0
-0.012
-0.0
36-0
.071
0 -0.0
21 0 -0
.025
12.5158.5
181.5
194.5
Name plate
(Discharge and Suction port)
Discharge port1•1/16-12UN-2BTightening torque
626247.9
(36)(36)2-47.92-
(35)
(35) 26
2-26
2-
99-104 ft lbs
Suction port1•5/16-12UN-2BTightening torque
M8 depth18
(For sub-plate)
4-
Detail of Suction port
Tandem-pump installationA sub-plate is necessary
(181.5)
14.5(5)(shaft end)
SAE J498bInvolute spline
Involute spline specifications
Dp
Addendum circle diameter 15.4
FLAT ROOT SIDE FIT
0-0.2
0-0.279
+0.0
50±0
.2
2.4±0.05
8
22
O-ringNBR-90 G50(JIS B 2401)
Thru-drive allowable torque(TS: Shaft side pump, TH: Head side pump)
Case 1(at shaft side max)
Case 2(at head side max)
T total T’ total
T S max T H max T’ S max T’ H max
Case 1 T S max
T H max
T total
Torque N•m
Case 1 T’ S max
T’ H max
T’ total
Tandem-pump installationA sub-plate is necessary
(222.5)
14.5(10)(shaft end) Involute spline
0-0.279
2.4±0.05
1029.5
O-ringNBR-90 G70(JIS B 2401)
SAE J498b
Involute spline specifications
Dp
Addendum circle diameter 18.6
FLAT ROOT SIDE FIT
0-0.2
Thru-drive allowable torque(TS: Shaft side pump, TH: Head side pump)
Case 1(at shaft side max)
Case 2(at head side max)
28419490
28419985
Torque N•m
T S max T H max T’ S max T’ H max
Case 1 T S max
T H max
T total
Torque N•m
Case 1 T’ S max
T’ H max
T’ total
T total T’ total
0-0.021
0-0.025
±0.2
±0.2
±0.2
+0.0
50
±0.2
±0.2
Nachi America Inc.715 Pushville Rd, Greenwood, IN 46143Tel. (800) 622-4410 Fax. (317) 530-1015Email: hydraulics@nachiamerica.comwww.nachiamerica.com October 2016
PVS – 0 B – 8 - N - 3 - K - E5737A
Model CodeHow to Order
K: Key Shaft
Pressure adjustment range (A: constant discharge type) 1: Up to 1000 psi 3: Up to 3000 psi 2: Up to 2000 psi
Variable Control MechanismsN: Pressure Compensation type R= Load Sensing Type P= Remote Control Type
Pump Capacity (cc): 8, 16, 22, 35, 45
Note: 1. Note that there are certain restrictions on pump capacity and motor capacity combinations. 2. Design numbers are subject to change without notice.
Mounting Method B: Flange Type Mounting
PVS Series variable volume piston pump unit
Design No.
Pump Size: O, 1, 2
Calculation of Torque
[Formula]
[Example] Front :0.4Cu in at 2000psi (Remote control:PVS-0B-8P2-K-E5737Z) Rear :0.4Cu in at 500psi (Remote control:PVS-0B-8P1-K-E5737Z)
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