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Desmi Manuals
Water Pump
GP
User manual
Desmi GP User Manual
Rotan pump
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
1 General Information
Figure 1:Shows the Group (G=Gas/D=Dust), the Categories, Zones and Temperature Classes (T1/T2/T3/T4) for Which DESMI PUMPING
Figure 2:Shows the Liquid Flow through the ROTAN Pump - Seen from the Front End
Figure 3:Shows What Is Designated as Front and Rear of the ROTAN Pump
Figure 4:: a List of the Various Pump Types, Their Designation and Application
Figure 5: a List of Pump Sizes Based on the Internal Diameter of the Pump's Inlet/Outlet in Inches and Millimetres
Figure 6:A List of the Various Pump Sizes Together with the Pump Types Available in the Various Pump Sizes
Figure 7:A List of the Various Pump Sizes and Pump Types Supplied with an Internal Thread
2 Ec Declaration of Conformity
3 Safety Warnings - in General
4 Safety Warnings - Electricity
5 Safety Warnings - Atex
6 Pump Models
Pump Models
Pump Versions
7 Transporting the Pump
8 Lifting the Pump
Figure 8:The Codes of the Various Pump Versions Together with an Explanation of What They Mean
Figure 9:Table Showing the Weight in Kg of the Various Pump Types in the Various Pump Sizes
Figure 10:Lifting Instructions for Pump with Free Shaft End with Flange
Figure 11:Lifting Instructions for Pump with Free Shaft End with Thread
Figure 12:Lifting Instructions for GP Pump Type with Thread
Figure 13:Lifting Instructions for GP Pump Type with Flange
Figure 14:Lifting Instructions for Pump with Motor
Figure 15:Lifting Instructions for Pump with Gear Motor
Figure 16:HD202 Lifting Instructions for Pump with Free Shaft End
9 Storage, Long-Term Preservation and Frost Protection of the Pump
Storage
Preservation Procedure
Frost Protection
10 Installation
Selecting the Motor Etc
Connecting the Motor and the Pump
Aligning the Motor and the Pump
Axial Clearance
Horizontal/Vertical Positioning of the Pump
Horizontal Positioning of the Pump
Figure 17:Shows a Simplified Sketch of a Pump (the Circle) Fitted in a Water Trap
Vertical Positioning of the Pump
Figure 18: Shows a Simplified Sketch of a Pump (the Circle) Fitted in a Water Trap
Positioning of the Pump on Foundation
Figure 19:The Minimum Distance to the Wall - V-Dist. in MM - - to Enable Removal of the Front Cover
Before Connecting the Pipes
External Loads on Pump Flanges
Figure 20:The Location of Forces and Torque on the Pump Casing
Figure 21:The Maximum Permitted External Forces and Torque that May be Applied to Pump Flanges for the Various Pump Sizes
Flange Coupling
Figure 22:The Bolt Sizes Available for Connecting Flanges, Together with the Maximum Tightening Torque Depending on the Pump Size and
Threaded Coupling
Dry Running
Thermal Sensor
Emergency Stop
Electrical Coupling
Monitoring
11 Before Starting the Pump
Before Starting after Preservation
12 After Starting the Pump
Cavitation
Running in the Soft Shaft Seal - When Starting the Pump
13 Bypass Valve
Figure 24:A Double-Action Bypass Valve
Valve Configurations
Positioning the Valve
Figure 25:A ROTAN Bypass Valve with Heating Jacket for Connection to Heating
Operating Principle - Valve
Figure 26:: Shows How S for Suction Side and P for Pressure Side Are Indicated on the Valve
Setting the By-Pass Valve
Figure 27:The Location of the Regulating Screw on the ROTAN Bypass Valve
Figure 28:The Setting Value "A" for ROTAN Valves
Figure 29:Setting Value "A" in MM, Based on the Valve Number or on Pump Type/Pump Size and the Valve's Operating Pressure in Bar
14 Pump Liquids
Hot Liquids
Figure 31:The Pump Liquid's Maximum Permitted Temperature for the Various Pump Types
Figure 32:The Pump Liquid's Minimum/Maximum Temperature Limits for the Various Elastomers Used in ROTAN Pumps
Foods
15 Noise
Figure 33:The Maximum A-Weighted Sound Pressure Level in Db(A)(Lp) for the Various Pump Sizes in Relation to the Pumps' Flow. the Range above
16 Storing the User Manual
17 Maintenance
Figure 34:The Figure Shows Which Parts or What Must be Checked and Maintained on the Pump, and at What Intervals this Must be Undertaken
Adjusting the Soft Shaft Seal
Figure 35:The Location of the Soft Shaft Seal, the Shaft Seal Casing and the Packing Gland on the Pump
Figure 36:The a and B Dimensions on the Shaft and the Shaft Seal Housing
Repacking - Soft Shaft Seal
Ball/Roller Bearings
Lubrication of Ball/Roller Bearings
Service Life - Ball/Roller Bearings
Figure 38:Ball/Roller Bearing Types and the Minimum Service Life in Hours for the Various Pump Types and Sizes
Figure 39:Ball Bearing Types and the Minimum Service Life in Hours for Pump Type GP in the Sizes Indicated
Lubrication of Slide Bearings
Figure 40:Re-Lubrication Intervals and Amounts of Grease in Grams for Lubrication of Slide Bearings - Main Bearing and Idler Bearing
18 Troubleshooting
Figure 41:Various Problems that Can Arise and Possible Causes of the Problems
19 Emptying and Cleaning the Pump
20 Disposal of Liquid
21 Repairs
Reinstallation of Thermal Sensor
Figure 42:The Axial Clearance between the Rotor/Idler and the Front Cover
Axial Clearance
Checking the Axial Clearance
Setting the Axial Clearance
Figure 44:Adjusting Screws' Min./Max. Angle Turn in Degrees - When Setting the Axial Clearance - for the Shown Pump Types, in the Specified
Figure 45: the Size of the Angle for a Single Surface on the Hexagonal Bolt Head on the Adjusting Screws
Figure 46:HD202 Axial Clearance Adjustment - Adjust the Bearing Housing(Pos. CR)
Figure 47:The Procedure for Setting the Axial Clearance in the Various Pumps for Installed and Non-Installed Pumps Respectively
Figure 48:The Procedure for Setting the Axial Clearance on Installed and Non-Installed HD202 Pumps
22 Spare Parts
23 Ordering Spare Parts
Figure 49:An Example of a Pump's Name Plate
Spare Parts Drawings
24 Spare Part List
25 Technical Specifications
Capacity
Speed
Figure 50:The Maximum Capacity in M3/H for the Various Pump Types
Operational Pressure
Suction Height
Viscosity
Figure 52:Maximum Operational Pressure in Bar for the Various Pump Types
Figure 53:The Max. Suction Height in Bar for Priming Vacuum and Operational Vacuum
Figure 54:States the Max. Allowed Viscosity in Cst. of the Pump Liquid - for Standard Versions of the Various Pump Types
Temperature
26 Installation of Atex Pumps with Pt100 Sensor
Figure 55:The Pump Liquid's Minimum/Maximum Temperature Limits for the Various Pump Types
Figure 56:The Pump Liquid's Minimum/Maximum Temperature Limits for the Various Elastomers Used in an ED Pump
Installation of the Pt100 Sensor
PT100 Sensor Installed in an Intrinsically Safe Electrical Circuit
PT100 Sensor Installed as an Intrinsically Safe Equipment
Mounting the Pt100 Sensor to the Pump
Pumps with Soft Shaft Seal
ED Pumps
Bypass Valve
27 Service Centres - Denmark
28 Subsidiary Companies - Desmi Pumping Technology A/S
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User Manual – incl. ATEX/English
Types GP – HD - PD - CD - CC - ED*
DESMI PUMPING TECHNOLOGY A/S
ROTAN PUMP
Tel.: +45 96 32 81 11
Fax: +45 98 17 54 99
E-mail:
desmi@desmi.com
Internet:
www.desmi.com
T1456UK-V9.7
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