Danfoss PAHT G Operation Manual

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Operation guide

PAHT G pumps

PAHT G 2/3.2/4/6.3/10 and 12.5

Operation, Installation and

Maintenance Manual

180R9383 | AQ121686503103en-000803

hpp.danfoss.com

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Summary of Contents for Danfoss PAHT G

Page 1 Operation guide PAHT G pumps PAHT G 2/3.2/4/6.3/10 and 12.5 Operation, Installation and Maintenance Manual 180R9383 | AQ121686503103en-000803 hpp.danfoss.com © Danfoss | 2023.03...
Page 2: Table Of Contents
Closed system (not applicable for PAHT G 256-308) ....... . .
Page 3 Parts list PAHT G (AX319828953697en-000601) ........
Page 4: Validity
Data sheet Product type Validity This manual is valid for PAHT G pumps both not In case the pump delivered is ATEX certified, the ATEX certified versions. ATEX certified pumps are additional ATEX instruction must also be read. indicated by Ex in the designation - example PAHT G 20 Ex.
Page 5: Introduction
In case the pump delivered is ATEX certified, the 1.2 Symbols additional ATEX instruction must also be read. The PAHT G pumps must not be used for other purposes than those recommended and specified without first consulting your local Indicates something to be noted by the pump distributor.
Page 6: Manufacturer And Customer Service Address
Data sheet Product type 1.3 Manufacturer and customer service Web: hpp.danfoss.com address: Your local Danfoss pump distributor can be found on our homepage. Danfoss A/S 1.4 Country specific information High Pressure Pumps 1.4.1 United Kingdom Nordborgvej 81, DK-6430 Nordborg UK importer: Denmark Danfoss Ltd.
Page 7: Commissioning And Servicing The Unit
Dimensions of the different pumps can be found in appendix 1, Data sheet. The PAHT G pumps must not be used for other purposes than those recommended and 3.6 Space requirement specified without first consulting your local pump distributor.
Page 8: Filtration
3.9 Air bubbles sheet and appendix 2, Instruction. Large bubbles in a pressurised system can result Danfoss recommends not to build a filter bypass in damage to piping, equipment and the pump. function or use filters with an integrated bypass.
Page 9: Return To Supplier
Each pump is tested before shipment, and will therefore contain water. For storage temperature and frost protection see appendix 2, Instruction. The pumps are NOT delivered frost protected from the factory. © Danfoss | 2023.03 180R9383 | AQ121686503103en-000803 | 9...
Page 10: Installation And Commissioning
Commissioning must always be done in accordance with valid regulations and local standards. Open system design SYSTEM Closed system design (not applicable for PAHT/PAHT G 256-308) Reservoir System 10 | 180R9383 | AQ121686503103en-000803 © Danfoss | 2023.03...
Page 11: Pre Mounting Checklist, Based On Danfoss Preferred System Designs
Data sheet Product type 5.6 Pre mounting checklist, based on Danfoss preferred system designs Table 1: Check points when assembling and commissioning system Check points Comment OK ? Ensure that the environmental conditions are safe. See Arrival inspection, transportation, handling, lifting and storage, chapter 4.
Page 12: Ensure Free Flow
Adjust pressure relief valve to minimum and safety. setting. • Check rotation of the high-pressure pump Danfoss offers commissioning and service at by description in 5.15. system manufacturer’s location. Rate quotes are • Start high-pressure pump for 2 minutes, to offered upon request.
Page 13: Operation Of Motor Pump Unit
Contact appendix 2, Instruction. the maintenance department. Danfoss offers service of the pump at the system High frequency tones – safety/relief valves manufacturer’s location as well as we offer are either damaged or running very close training in how to service the pump.
Page 14: Disassembling And Assembling The Pump Unit
4, Parts list. If the pump is going to be returned to Danfoss for repair or a warranty claim, it is important to contact Danfoss in order to receive a return number and a form to fill out with product information.
Page 15: Troubleshooting And Scrapping Criteria
There is excessive mechanical load on the unit is. Please use appendix 5, Trouble shooting shaft coupling and piping. guide as guideline or send the pump to Danfoss headquarter in Denmark for evaluation. For other observations or troubles, please see appendix 6, Right and Wrong which gives good 8.3 Mechanical failure...
Page 17: Appendices
Data sheet Product type Operation guide Appendices PAHT G 2-12.5 Installation, Operation and Maintenance Manual hpp.danfoss.com © Danfoss | 2023.03 180R9383 | AQ121686503103en-000803 | 17...
Page 18: Electric Motor Manual (180R9230)
Parts list PAHT G (AX319828953697en-000601) ........
Page 19 Data sheet PAHT G pumps PAHT G 2.0 - PAHT G 308 ATEX PAHT G 2.0 - PAHT G 308 180R9383 | AQ121686503103en-000803 hpp.danfoss.com © Danfoss | 2023.03...
Page 20 Open-system design ..............33 Closed-system design (not applicable for PAHT G 256-308) ......34 Dimensions and connections.
Page 21: Benefits
Data sheet Data sheet Product type Below sectional drawing is an example of a PAHT G pump. 1: Mounting flange 2: Shaft seal 3: Connecting flange 4: Port plate 5: Valve plate 6: Retainer plate 7: Swash plate 8: End cap...
Page 22: Technical Data
Data sheet Technical data PAHT G 2-12.5 Pump size 12.5 Code number PAHT G 180B1003 180B1004 180B1005 180B1006 180B1007 180B1008 Code number ATEX PAHT G 180B6131 180B6177 180B6130 180B6129 180B6132 180B6133 Housing material AISI 304 AISI 304 AISI 304 AISI 304...
Page 23: Paht G 20-32
Data sheet Data sheet Product type PAHT G 20-32 Pump size Code number PAHT G 180B1009 180B1010 180B1011 Code number ATEX PAHT G 180B6119 180B6120 180B6121 Housing material AISI 316 AISI 316 AISI 316 or higher or higher or higher Geometric cm³/rev...
Page 24: Paht G 50-90
Product type Data sheet PAHT G 50-90 Pump size Code number PAHT G 180B1012 180B1013 180B1014 180B1015 180B1016 Code number ATEX PAHT G 180B6185 180B6186 180B6187 180B6188 180B6189 Housing material AISI 316 or AISI 316 or AISI 316 or AISI 316 or...
Page 25: Paht G 256-308
Data sheet Data sheet Product type PAHT G 256-308 Pump size Code number PAHT G 180B6090 180B6091 Code number ATEX PAHT G 180B6190 180B6191 Housing material AISI 316 AISI 316 or higher or higher Geometric cm³/rev displacement in³/rev 15.6 18.8 Pressure Min.
Page 26: Flow
V x n Pressure (barg / psig) Displacement (cm / rev.) (th) 1000 Motor speed (rpm) l/min 5.1 PAHT G 2-6.3 typical flow curves at max pressure PAHT 6.3 l/min PAHT G 6.3 PAHT 6.3 PAHT 4.0 PAHT 3.2 PAHT G 4.0 PAHT 4.0...
Page 27: Paht G 10-12.5 Typical Flow Curves At Max Pressure
Data sheet Data sheet Product type PAHT G 10-12.5 typical flow curves at max pressure l/min l/min PAHT 12.5 PAHT G 12.5 PAHT 12.5 PAHT G 10.0 PAHT 10.0 PAHT 10.0 PAHT 12.5 PAHT G 12.5 PAHT 12.5 PAHT 10.0 PAHT G 10.0...
Page 28: Paht G 20-32 Typical Flow Curves At Max Pressure
Data sheet Product type Data sheet PAHT G 20-32 typical flow curves at max pressure l/min l/min PAHT 32 PAHT 32 PAHT G 32 PAHT 25 PAHT G 25 PAHT 25 PAHT 20 PAHT G 20 PAHT 20 PAHT G 32...
Page 29: Paht G 50-90 Typical Flow Curves At Max Pressure
Data sheet Data sheet Product type PAHT G 50-90 typical flow curves at max pressure l/min l/min PAHT 90 PAHT G 90 PAHT 90 PAHT 80 PAHT G 80 PAHT 80 PAHT 70 PAHT G 70 PAHT 70 PAHT 63...
Page 30: Paht G 256-308 Typical Flow Curves At Max Pressure
Data sheet Product type Data sheet PAHT G 256-308 typical flow curves at max pressure l/min l/min PAHT G 308 PAHT 308 PAHT 308 PAHT 256 PAHT G 256 PAHT 256 PAHT 308 PAHT G 308 PAHT 308 PAHT 256...
Page 31: Motor Requirements
The mechanical efficiency of the pump, at max pressure, is as follows: PAHT G 2, 3.2, 4, 6.3 PAHT G 10, 12.5 PAHT G 20, 25, 32, 50, 63, 70, 80, 90 0.95 PAHT G 256, 308 0.95 © Danfoss | 2023.03...
Page 32: Installation
Since water has very low viscosity, Danfoss The noise level is influenced by: PAHT G pumps have been designed with very • Pump speed: narrow clearances in order to control internal...
Page 33: Open-System Design
Pressure relief valve: between the filter and the pump inlet. Set the minimum inlet pressure according to As the Danfoss PAHT G pump begins to specifications described in item 4, technical create pressure and flow immediately after data. The monitoring pressure switch stops...
Page 34: Closed-System Design (Not Applicable For Paht G 256-308)
Pressure relief valve: filter. Monitoring pressure switch: As the Danfoss PAHT G pump begins to Install the monitoring pressure switch (3) in create pressure and flow immediately after front of the filter (1). Set the maximum inlet start-up regardless of any counter pressure, pressure to 2 barg (29.0 psig).
Page 35: Paht G 10-12.5
Data sheet Data sheet Product type Dimensions and PAHT G 2-6.3 connections © Danfoss | 2023.03 180R9383 | AQ121686503103en-000803 | 35...
Page 36: Paht G 20-32
Data sheet Product type Data sheet PAHT G 10-12.5 36 | 180R9383 | AQ121686503103en-000803 © Danfoss | 2023.03...
Page 39: Paht G 256-308
Data sheet Data sheet Product type PAHT G 256-308 © Danfoss | 2023.03 180R9383 | AQ121686503103en-000803 | 39...
Page 40: Service
Data sheet Product type Data sheet Service Danfoss PAHT G pumps are designed for long periods of service-free operation to ensure low Other factors that affect pump performance and maintenance and life cycle costs. Provided that lifetime include: the pump is installed and operated according to Danfoss specifications, Danfoss PAHT G pumps •...
Page 42 Data sheet Product type Data sheet 42 | 180R9383 | AQ121686503103en-000803 AI106586503089en-000802 © Danfoss | DCS-SGDPT/SI | 2023.03...
Page 44 How to inspect the pump ............. .52 Identification 44 | 180R9383 | AQ121686503103en-000803 © Danfoss | 2023.03...
Page 45: System Design
Monitoring pressure switch: Pressure relief valve: Install the monitoring pressure switch (3) in As the Danfoss PAHT G pump begins to front of the filter (1). Set the maximum inlet create pressure and flow immediately after pressure to 2 barg (29.0 psig). The monitor-...
Page 46: Open-System Design
Pressure relief valve: specifications described in item 4, technical data. The monitoring pressure switch stops As the Danfoss PAHT G pump begins to the pump if inlet pressure is lower than the create pressure and flow immediately after set minimum pressure.
Page 47: General Guidelines For Calculation Of Pressure Losses
• The pressure loss across the filter should be monitored. • Please contact the Danfoss Sales Organiza- tion for further filter details. Water tank Must be made of corrosion-proof material such as stainless steel or plastic and must be sealed to prevent entrance of impurities from the environ- ment.
Page 48: Building Up The Pump Unit
B: Bell housing C: Motor shaft If alternative mounting is desired, please contact 3.2 Direction of rotation the Danfoss Sales Organization. Is indicated by means of an arrow at the label of the pump. Choose proper tolerances to ensure an easy mounting of the elastic coupling without use of tools.
Page 49: Protection From Too High Pressures
3.5 Connections P: Pressure Tank C: Bleeding D: Parallel key 5 x 5 x 20, DIN 6885 PAHT G 2-6.3 PAHT G 10-12.5 Thread size M6; Allen key G 1⁄4, NV6 G 1⁄4 x 11 G 1⁄2 x 15 G 3⁄8 x 15 G 3⁄4 X 17...
Page 50: Initial Start-Up
Water of drinking water quality, confirming to the EEC directive 98/83/EC and without abrasive 5.5 Disconnection sediments. Please contact Danfoss sales organization in case of doubt. If the inlet line is disconnected from the water supply, the pump will be emptied of water through the disconnected inlet line.
Page 51: Open-Ended Systems With Water Supply From Tank
Danfoss PAHT G pumps typically run 8,000 hours between service routines. However, the • running the pump at speeds outside service schedule for your PAHT G pump may vary specifications according to the application and other factors. • supplying the pump with water at temper-...
Page 52 Instruction Data sheet Product type 52 | 180R9383 | AQ121686503103en-000803 © Danfoss | DCS-SGDPT/SI | 2023.03 180R9382 | AN189786502961en-000201...
Page 53 Electric Motors Data sheet Product type Motor Manual Electric Motors Motor Manual hoyermotors.com hoyermotors.com M a n u a l M a n u a l © Danfoss | 2023.03 180R9383 | AQ121686503103en-000803 | 53...
Page 54 Inspect the motor at regular intervals, keep it clean and doubled supply frequency. ensure free ventilation air flow, check the condition of shaft Only mount or remove drive components (pulley, coupling, seals and replace if necessary. Both electrical and mechanical 54 | 180R9383 | AQ121686503103en-000803 © Danfoss | 2023.03...
Page 55 At 60Hz the time will be reduced by app. 20%. Maintenance, repairs and replacement on this type must only be carried out by qualified specialists. Data for vertically mounted motors are half of the above values. © Danfoss | 2023.03 180R9383 | AQ121686503103en-000803 | 55...
Page 56 Data sheet Product type Connection diagram Anschlußdiagram Anslutningdiagramm Forbindelsesdiagram Aansluitdiagram Connection Conexión Collegamento Schemat polacsen 56 | 180R9383 | AQ121686503103en-000803 © Danfoss | 2023.03...
Page 58 T +86 574 26 28 15 77 · F + 86 574 2628 1573 sweden@hoyermotors.com korea@hoyermotors.com hoyermotors@hoyermotors.cn hoyermotors.com hoyermotors.com hoyermotors.cn Important notice. Text and data in this catalogue are not binding and we reserve the right to implement changes without further notice. 58 | 180R9383 | AQ121686503103en-000803 © Danfoss | 2023.03...
Page 59 Parts list Parts list PAHT 2-308 pumps PAHT G pumps PAHT G 2-308 pumps PAHT G 2/3.2/6.3 - PAHT G10/12.5 - PAHT G 20/25/32 - PAHT G 50/63/70/80/90 - PAHT G 256/308 180R9383 | AQ121686503103en-000803 danfoss.high-pressurepumps.com hpp.danfoss.com © Danfoss | 2023.03...
Page 60 Exploded view for PAHT G 3.2-6.3 ........
Page 61 ATEX certified pumps. ATEX certified pumps are indicated by Ex in the designation. Non Atex ATEX PAHT G 2 PAHT G 2 Ex PAHT G 3.2 PAHT G 3.2 Ex PAHT G 4 PAHT G 4 Ex PAHT G 6.2 PAHT G 6.2 Ex...
Page 62 Data sheet Parts list Product type Spare parts list for PAHT G 2 Pos. Qnt. Designation Material 1 Shaft bush, torpedo 1 Press bush 1 Housing AISI 304 / PEEK 1 Pin AISI 316 4 Screw AISI 316 1 Swash plate...
Page 63 Data sheet Product type Parts list Exploded view for PAHT G 2 © Danfoss | 2023.03 180R9383 | AQ121686503103en-000803 | 63...
Page 64 Data sheet Parts list Product type Spare parts list for PAHT G 3.2-6.3 Pos. Qnt. Designation Material 1 Shaft bush, torpedo 1 Press bush 1 Housing AISI 304 / PEEK 1 Pin AISI 316 4 Screw AISI 316 1 Swash plate...
Page 65 Data sheet Product type Parts list Exploded view for PAHT G 3.2-6.3 © Danfoss | 2023.03 180R9383 | AQ121686503103en-000803 | 65...
Page 66 Data sheet Parts list Product type Spare parts list for PAHT G 10-12.5 Pos. Qty. Designation Material 1 Shaft bush, torpedo 1 Press bush 1 Housing AISI 304 / PEEK 1 Pin AISI 316 4 Screw AISI 304 1 Swash plate...
Page 67 Data sheet Product type Parts list Exploded view for PAHT G 10-12.5 © Danfoss | 2023.03 180R9383 | AQ121686503103en-000803 | 67...
Page 68 Guide bolt, M8 x 140 Shaft seal extractor, Ø45 Press bush, Ø45 Eye bolt, M8 Press bush for valve plate Stop for retainer plate Screw, M8 x 20 Screw, M8 x 70 68 | 180R9383 | AQ121686503103en-000803 © Danfoss | DCS-SGDPT/SI | 2023.03 AX319828953697en-000601...
Page 69 Guide line. PAH / PAHT / PAHT C / PAHT G / PAHT 674 / PAH F pumps Trouble shooting guide 180R9383 | AQ121686503103en-000803 hpp.danfoss.com © Danfoss | 2023.03...
Page 71: Trouble Shooting Fish Bone Chart
Guideline Data sheet Product type Trouble shooting fish bone chart © Danfoss | 2023.03 180R9383 | AQ121686503103en-000803 | 71...
Page 72: No Flow/No Pressure
1.4.2 Check if coupling is damaged. 1.4.3 Check that electric motor is sized correctly. 1.4.4 Check that the electrical installation is correctly sized. 1.4.5 Contact Danfoss Sales office for guidelines in how to troubleshoot internal pump parts. 1.5 Axial load on pump shaft 1.5.1 Ensure that the air gap between the two...
Page 73: Reduced Flow/Reduced Pressure
Some filters can create (particles in fluid must not exceed 10 μm). channelling where particles can pass through Danfoss High Pressure Pumps supplies the filter in tunnels. String wounded filters are filters, please contact the sales office. typically channelling filters. A string wound filter...
Page 74: High Torque On Electric Motor
Start motors simultaneously. 3.3 Constant torque 3.3.1 Please contact Danfoss High Pressure If the electric motor is too small for the pump, it Pumps sales office. cannot provide sufficient torque. 3.4 Water pump damage 3.4.1 Dismantle pump and check for wear.
Page 75: Noise From Pump
4.6.2 If outlet pressure is lower than mentioned Too low pressure also causes insufficient internal in the pump data sheet, please contact lubrication and wear on internal parts. Pump Danfoss High Pressure Pumps technical may eventually be damaged. support. 4.6.3 If outlet pressure has exceeded its Too high outlet pressure may damage the pump.
Page 76: Noise From Installation
5.5.1 Mount a vibration dampener below the When no dampener is installed below the motor motor/pump. electric motor, vibrations from the motor and pump may be transferred to the frame and the rest of the system/plant. 76 | 180R9383 | AQ121686503103en-000803 © Danfoss | 2023.03...
Page 77: Typical Signs Of Wear
If any scratches or marks can be felt by running a fingernail over the surface, the valve plate is worn. The valve plate on picture 3 is highly damaged. © Danfoss | 2023.03 180R9383 | AQ121686503103en-000803 | 77...
Page 78: Port Plate
To check this, please see item 6.1, picture 3. If the surface has any marks/scratches, it is worn/damaged and a new one is required. Please contact Danfoss High Pressure Pumps sales office for further infor- mation. 78 | 180R9383 | AQ121686503103en-000803...
Page 81 Service guide. Right and wrong Trouble shooting guide for water hydraulic systems 180R9383 | AQ121686503103en-000803 hpp.danfoss.com © Danfoss | 2023.03...
Page 82 Locate the return filter in the return line Placing the return filter upstream of the Filling system with unfiltered System to be filled via filter immediately before the tank final load may damage the pump water causes damage 82 | 180R9383 | AQ121686503103en-000803 © Danfoss | 2023.03...
Page 83 Too much grease may develop Correctly limited quantities of grease Starting without water will cause Fill system with water before starting prevent seizing biofilm causing operational failures damage to ensure lubrication and cooling © Danfoss | 2023.03 180R9383 | AQ121686503103en-000803 | 83...
Page 84 If the system is not cleaned before Insufficient bleeding may cause dam- Observing the starting procedure will cooling and lubrication age (not applicable to Power Packs) starting, the filter will clog ensure problem-free operation 84 | 180R9383 | AQ121686503103en-000803 © Danfoss | 2023.03...
Page 85 A blown fuse / or short circuit? Check power supply and fuses and contact Replace filter element electrician Replace filter element Contact serviceman Stamp Turn on the tap for water supply © Danfoss | 2023.03 180R9383 | AQ121686503103en-000803 | 85...
Page 86 Is the filter clogged? and fuses and contact Is the filter control Replace filter element Fill water into the system electrician light on? Contact serviceman Trace leakage, if any Stamp 86 | 180R9383 | AQ121686503103en-000803 © Danfoss | DCS-SGDPT/SI | 2023.03...

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