Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for North Ridge Pumps KRAL DKB Series
Summary of Contents for North Ridge Pumps KRAL DKB Series
- Page 1 KRAL Pump Stations. DKB Series. Operating Instructions OID 04en Edition 08/2014 Original operating instructions X-Cel House, Chrysalis Way, Langley Bridge, Eastwood, Nottinghamshire NG16 3RY Tel: +44 (0) 1773 302 660 | Email: sales@northridgepumps.com | Website: www.northridgepumps.com...
-
Page 2: Table Of Contents
Table of contents □ About this document Preservation ▪ Preserving the internal surfaces of the □ General information station □ Target groups ▪ Preserving the external surfaces of the □ station Symbols ▪ Removing the preservative □ Danger levels □ Disposing of the station □... -
Page 3: General Information
General information General information About this document The operating instructions form part of the pump/pump station and must be kept for future reference. Furthermore please observe the associated documents. Target groups Target group Tasks □ Operator-owner Keep these instructions available at the installation site for future reference. -
Page 4: Danger Levels
Danger levels Danger levels Warning Danger level Consequences of non-observances DANGER immediate threat of danger serious personal injury, death WARNING possible threat of danger serious personal injury, invalidity CAUTION potentially dangerous situation slight personal injury CAUTION potentially dangerous situation material damage Associated documents Declaration of conformity according to EU Directive 2006/42/EC Manufacturer’s declaration as per EU Directive 97/23/EG... -
Page 5: Proper Use
Proper use Proper use Safety □ Use the pump/pump station only for transporting lubricating liquids that are chemically neutral and that contain no gas or solid components. □ Use the pump/pump station only within the performance limitations specified on the rating plate and in the "Technical data"... -
Page 6: Type Code
Type code Type code Labeling 1 Model DKB- 3000.BA.00001 2 Size 3 Shaft seal 4 Heating system 5 Version index Item Designation Type Model DKB: pressure build-up up to 16 bars Size corresponds to flow rate in [l/h] at motor speed Shaft seal A: standard mechanical seal B: mechanical seal of hard material... -
Page 7: Operating Limits
Operating limits Operating limits Technical data In addition to the operating limits of the pump station, the operating limits of the attached pumps must also be observed. Operating pressure max. [bar] Temperature of the pumped liquid max. [°C] Ambient temperature [°C] -10...50 Viscosity [mm min. -
Page 8: General
General General Heating system The pump stations can be equipped with an optional heating system. We recommend heating systems for high-viscosity liquids that do not flow sufficiently if not heated. This can result in excessive power consumption or lead to problems arising through cavitation or sealing. Method of heating: □... - Page 9 Electric heating system Pay attention to the following when installing the heating element: □ Protect the area of the connecting head against liquid and pasty media (anti-friction agent, oil, plastics, etc.) as well as their vapors, because leakage currents or flashovers can other- wise occur at the emersion point of the supply line.
-
Page 10: Connecting And Commissioning The Electric Heating System
Electric heating system WARNING Danger of the station block bursting if the heating duct is filled completely and risk of injury through emitted thermal oil. ► Fill the heating duct with thermal oil up to a maximum of 45 mm under the sealing surface of the screw plug. -
Page 11: Fluid Heating System
Fluid heating system Fluid heating system Fig. 6 Installation position of the fluid heating Fig. 7 Sectional view of fluid heating system system 1 Piping 3 Heating duct 2 Screw connection for fluid heating system In the case of the fluid heating system the heating fluid passes through a heating duct 3 in the station block, see Fig. -
Page 12: Structure
Structure Structure Function description Fig. 1 Station structure 1 Pumps 3 Pressure-side pressure 4 Suction connection 2 Reversing valve lever gauge 5 Pressure connection Suction Side Pressure Side Fig. 2 Hydraulic scheme OID 04en Edition 08/2014 Operating Instructions... -
Page 13: Function Description
Function description Function description Functional principle The pump stations of the DKB series are suitable for the parallel operation of two KRAL pumps of the K or L series. The functional description of the pumps is contained in the associated pump operating inst- ructions. -
Page 14: Options
Options Options Suction-side pressure monitoring In order to monitor the pressure on the suction sides of the two pumps, two further pressure gauges 1 can be mounted optionally. The stopcocks at the pressure gauges may only be opened to read the pressure values, see "Reading the pressure values", page 25. -
Page 15: Leak Oil Monitoring
Options Leak oil monitoring Betrieb Entriegeln Alarm Prüfen Alarmton 1 Operation 2 Unlock 3 Alarm 230 V AC 4 Test 50 Hz 5 Alarm sound 6 Off 7 On ϑ 8 Cable 9 Indication device 10 PTC resistor sensor Fig. 5 Leak oil monitoring The leak oil monitoring device consists of the indication device and a PTC resistor sensor. -
Page 16: Unpacking And Checking The State Of Delivery
Unpacking and checking the state of delivery Unpacking and checking the state of delivery Transportation, storage and disposal 1. Upon delivery unpack the station and check for transport damage. 2. Report any transport damage immediately to the manufacturer. 3. Dispose of packing material in accordance with the locally applicable regulations. Lifting the station Fig. -
Page 17: Storage
Storage Storage During the test run, the internal components of the station are wetted with test oil, which has a preserva- tive effect. The pipe connections are fitted with protective caps. Unless otherwise specified, the external components of the station are preserved with a single-coat PU-based two-component paint. The preser- vative applied at the factory will protect the station for about six weeks, if it is stored in a dry and clean location. -
Page 18: Disposing Of The Station
Disposing of the station Disposing of the station Aids: □ Solvents or industrial cleaners suitable for the pumped liquid WARNING Danger of poisoning and damage to the environment through pumped liquid or oil. ► Wear protective clothing during during all the work. ►... -
Page 19: Installation
Installation Installation Installation, removal and connection Observe the following instructions: □ When selecting the location take the operating limits, NPSH values and ambient conditions into account, see "Technical data", page 7. □ The function, safety and service life may not be impaired by humidity, temperature influences or explosive atmospheres. -
Page 20: Protecting The Station Against Contamination
Installation Protecting the station against contamination CAUTION Damage through impurities in the pipe system. ► During welding work attach protective covers to the connecting flanges. ► Ensure when welding that welding beads and abrasive dust cannot get into the pipe system and the station. -
Page 21: Removing The Station
Removing the station Removing the station Aids: □ Vessels for leaking pumped liquid DANGER Risk of death resulting from electric shock. ► Ensure that the power supply is disconnected. ► The station may only be separated from the power supply by an authorized electrician. WARNING Risk of injury through emitted hot, poisonous or corrosive pumped liquid when removing the station. -
Page 22: Commissioning
Commissioning Commissioning Operation The following instructions must always be observed: ► The station may only be commissioned by authorized qualified personnel. ► Wear protective clothing during all the work. Cleaning the pipe system Before initial commissioning the complete pipe system has to be cleaned carefully to protect the station against particle contamination. -
Page 23: Checking The Direction Of Rotation
Commissioning Checking the direction of rotation To check the direction of rotation observe the corresponding pump operating instructions. Commissioning the station Prerequisites: □ Station set up and mounted correctly □ Motors connected correctly □ Pipe system free of contamination □ Station is filled □... -
Page 24: During Operation
During operation During operation Activating the reversing valve Fig. 2 Reversing valve lever 1 Fig. 3 Positions of the reversing valve Possible positions of the reversing valve: Position Effect □ □ Lever 1 in right-hand position right-hand pump connected to pipe system □... -
Page 25: Reading The Pressure Values
During operation Reading the pressure values 1 Suction-side pressure gauge 2 Pressure-side pressure gauge 3 Pressure gauge stopcock Fig. 4 Pressure gauge CAUTION Permanently open stopcocks can result in the pressure gauges leaking. ► Close the pressure gauge stopcocks after reading. ►... -
Page 26: Taking The Station Out Of Operation
Taking the station out of operation Taking the station out of operation WARNING Risk of injury or poisoning through emitted pumped liquid. ► Wear protective clothing during all the work. ► Collect the emitted pumped liquid safely and dispose of it in an environmentally compatible man- ner. -
Page 27: Safety Instructions
Safety instructions Safety instructions Maintenance The following safety instructions must be observed during all the work: ► All the work may only be carried out by authorized qualified personnel. ► Wear protective clothing during all the work. ► Switch off the motors and secure them against being switched back on. ►... -
Page 28: Replacing The Pump
Replacing the pump Replacing the pump Fig. 1 Overview 001 Pump 729 Flat gasket 116 Station block 894 Hexagon nuts 180 Pump bracket 901 Stud screws 300 Reversing valve lever Screw plug 529 Motor Screw plug Aids: □ Vessels for leaking pumped liquid WARNING Risk of injury when replacing the pump without reducing the pressure beforehand. - Page 29 Replacing the pump 1. Switch over the lever of the reversing valve 300 in order to shut off the respective side, see "Activa- ting the reversing valve", page 24. 2. Open the screw plug A on the respective side at the rear of the pump in order to reduce the inner pressure of the pump.
-
Page 30: Replacing The Seal Ring Of The Control Plug
Replacing the seal ring of the control plug Replacing the seal ring of the control plug 165.2 Screw plugs Control plug Circlip Seal ring Fig. 2 Mounting the seal ring 10 – 15 165.2 Fig. 3 Overview Fig. 4 Calibrating the seal * blend radiused and polished Aids: □... -
Page 31: Possible Faults
Possible faults Possible faults Troubleshooting Faults can have different causes. The following tables list the symptoms of a fault, the possible causes and measures for elimination. Fault Cause/Remedy □ No pump suction 1, 2, 3, 4, 5, 7, 8, 35, 36 □... - Page 32 Troubleshooting Cause Remedy Viscosity of the pumped liquid too ► Increase the temperature of the liquid. high - or - ► Reduce the rotation speed. Viscosity of the pumped liquid too ► Decrease the temperature of the liquid. - or - ►...
- Page 33 Troubleshooting Cause Remedy Cold start when delivering high-vis- ► Install a pump heating. cosity liquids Seal overload during ► Open the pressure- or suction-side shut-off devices heating process in order to prevent thermal expansion of the liquid causing a build-up of pressure. Leaking return valve causes seal ►...
-
Page 34: General Drawings
General drawings General drawings Appendix 606.1 739.2 165.3 165.3 611.2 611.4 611.3 611.1 739.1 165.2 739.1 165.3 165.2 165.1 Fig. 1 Station block OID 04en Edition 08/2014 Operating Instructions... - Page 35 General drawings 606.2 606.2 Fig. 2 Pump station with mounted pumps Operating Instructions OID 04en Edition 08/2014...
- Page 36 General drawings Fig. 3 Pressure switch Fig. 4 Electric heating system Fig. 5 Screw connection for fluid heating system OID 04en Edition 08/2014 Operating Instructions...
-
Page 37: Spare Parts
Spare parts Spare parts Pos. no. Part Pos. no. Part Pump 606.2 Pressure gauge Station block Pressure switch 165.1 Screw plug Non-return valve 165.2 Screw plug 611.1 Threaded ring 165.3 Screw plug 611.2 O-ring Pump bracket 611.3 Sealing washer Base frame with oil pan 611.4 Cylindrical spring Reversing valve lever... -
Page 38: Contents Of The Ec Declaration Of Conformity
Contents of the EC Declaration of Conformity Contents of the EC Declaration of Conformity The screw pumps described in these operating instructions are machinery in the sense of the Directive 2006/42/EC. The original of the EC Declaration of Conformity is enclosed with the machinery at delivery. The machinery fulfills all the relevant provisions of the following directives: Number Name...