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Summary of Contents for Pratissoli SK Series
- Page 1 Menu SK Series Use and Maintenance Manual...
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Page 2: Table Of Contents
INDEX 1. INTRODUCTION 2. SYMBOL DESCRIPTION 3. SAFETY 3.1 General safety warnings.......................4 3.2 Essential safety elements in the high-pressure system............4 3.3 Safety during operation......................4 3.4 Instructions for using nozzles....................4 3.5 Safety during system maintenance..................5 4. PUMP IDENTIFICATION 5. TECHNICAL CHARACTERISTICS 6. -
Page 3: Introduction
1. INTRODUCTION This manual contains the instructions for the use and maintenance of the SK pump. It must be carefully read and understood before the pump is used. The proper functioning and lifetime of the pump depends on correct use and proper maintenance. Interpump Group declines all responsibility for damage caused due to negligence and/or failure to observe the instructions described in this manual. -
Page 4: Safety
3. SAFETY 3.1 General safety warnings Improper use of pumps and high-pressure systems, and/or failure to observe the installation and maintenance instructions, can cause serious injury to persons and/or damage to property. Anyone preparing to assemble or use high-pressure systems must have the necessary skills to do so, must be aware of the characteristics of the components to be assembled/used, and must adopt all possible precautions necessary to ensure maximum levels of safety in any operating condition. -
Page 5: Safety During System Maintenance
Note: proper clothing provides good protection from water sprays, but not from the direct impact of a water jet or from sprays at extremely close range. In such circumstances further protection will be necessary. 3. It is good practice to work in teams of at least two persons, so as to provide each other with immediate assistance if necessary, and to take over from each other during long and demanding tasks. -
Page 6: Technical Characteristics
5. TECHNICAL CHARACTERISTICS Flow rate Pressure Power Model l/min 1500 11.4 1500 21750 SK 20 1750 11.6 1500 21750 1500 13.7 1300 18850 SK 22 1750 14.0 1300 18850 1500 16.4 1100 15950 SK 24 1750 16.6 1100 15950 1500 19.3 13050 SK 26... -
Page 7: Dimensions And Weight
6. DIMENSIONS AND WEIGHT For dimensions and weight please see fig. 2. fig. 2 FORI = HOLES 7. INSTRUCTIONS FOR USE The SK pump is designed to work with filtered water (see paragraph 9.6) and at a maximum temperature of 30°C. Other liquids can only be used if previously approved by the Technical Office or Customer Assistance Service. -
Page 8: Recommended Brands And Types Of Oil
7.4 Recommended brands and types of oil The pump is delivered with oil suitable for use in ambient temperatures of from 0°C to 30°C. Some recommended types of oil are given in the table below. These are oils combined with additives to increase protection from corrosion and resistance to fatigue (to DIN 51517 part 2). - Page 9 The oil must always be changed at least once a year because it can deteriorate due to oxidation. For ambient temperatures other than 0°C to 30°C, follow the indications in the diagram below, bearing in mind that the oil must have a minimum viscosity of 180 cSt. Viscosity / Ambient Temperature diagram Ambient temp.
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Page 10: Ports And Connections
8. PORTS AND CONNECTIONS The SK series of pumps have (see fig.4): 2 inlet ports, "IN", 1”1/2 Gas. For the pump to work properly, it does not matter which of the two ports the line is connected to. Unused ports must be hermetically sealed. -
Page 11: Pump Installation
9. PUMP INSTALLATION 9.1 Installation The pump must be fixed in a horizontal position, using the drilled Ø19 support feet. The base must be perfectly flat and sufficiently rigid to not permit flexion and de-alignment on the pump/transmission coupling axis as a result of the torque transmitted during operation. On the pump two lifting eyebolts are installed to facilitate installation, as shown in the figure below. -
Page 12: Hydraulic Connections
The power take-off can be taken from either side of the pump. Generally the pump is supplied with the PTO shank for the right-hand side (see fig.6) To get the power off-take from the left hand side, the shaft end cover must be taken off and remounted on the right hand side of the pump (see 2.1.1 in the repair manual). -
Page 13: Filtration
9.6 Filtration The level of filtration permitted for this series of pumps must be max. 20 μm (micron). Normally this is obtained via a battery of at least three filters, positioned as shown in fig. 7. 1 Filter no. 1 5 Prefilter 9 Safety valve Prefilter... -
Page 14: Calculation Of The Internal Diameter Of The Pipes In The Pipelines
9.8 Calculation of the internal diameter of the pipes in the pipelines. To determine the internal diameter of the pipeline, refer to the following diagram: Inlet pipeline With a flow rate of ~ 99 l/min and a water speed of 0.5 m/sec. The line in the chart joining the two outside scales meets the centre scale, indicating the diameters, at a value corresponding to ~ 65 mm. -
Page 15: Start-Up And Operation
10. START- UP AND OPERATION 10.1 Preliminary checks Before starting up the pump make sure that: The inlet line is connected and is under pressure (see section 9): the pump must NEVER operate dry. 1. The inlet line guarantees a hermetic seal over time. 2. -
Page 16: Cooling Circuit Seal Packing
10.3 Cooling circuit seal packing During operation, some water from the cooling circuit seal packings will be discharged from port 1 (fig. 9). The drainage from this circuit must be redirected to the inlet line upstream of the booster pump (fig. 9), or to the collection tank. -
Page 17: Stopping The Pump For Long Periods
12. STOPPING THE PUMP FOR LONG PERIODS 12.1 Inactivity for lengthy periods If the pump is started for the first time after a long period of inactivity, before putting it into operation check the oil level, inspect the valves as indicated in section 10, and then follow the prescribed startup procedures. -
Page 18: Operational Anomalies And Their Possible Causes
15. OPERATIONAL ANOMALIES AND THEIR POSSIBLE CAUSES When the pump is started, it gives no flow: The pump is not primed and is operating dry. No water is supplied to the inlet. The valves are blocked. The outlet line is closed and this is stopping the air in the pump head from exiting. The pump pulses irregularly: Intake of air. -
Page 19: Exploded View And Part List
16. EXPLODED VIEW AND PART LIST... - Page 20 Offenders will be prosecuted according to the laws in force. PRATISSOLI a brand of INTERPUMP GROUP S.P.A. 42049 S.ILARIO - REGGIO EMILIA ( ITALY ) Tel. +39 - 0522 - 904311 Fax +39 - 0522 - 904444 E-mail: info@pratissolipompe.com...
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