Proper strapping of pumping equipment is a key factor in the efficient and long—lasting operation of the entire system. Properly selected pipes and connecting elements not only ensure tightness, but also reduce hydraulic losses, minimize vibrations and prevent premature wear of the equipment.
Tasks of strapping pumping equipment
- Ensuring the tightness of the system
- Reduction of hydraulic resistance
- Compensation of temperature expansion
- Damping of vibrations and noises
- Provision of maintenance and repair facilities
- Protection from water impacts
Selection of pipes for strapping pumps
Criteria for selecting the pipe material
Calculation of pipe diameter
- Flow rate: 1-2 m/s for suction line, 2-3 m/s for pressure line
- Accounting for pressure losses due to friction
- Matching the diameter of the pump nozzles
- Ensuring minimum resistance
Connecting elements for strapping
Types of connections
Accessories for strapping
- Shut-off valves:
- Ball valves - fast flow shut-off
- Gate valves - minimum resistance
- Check valves - preventing backflow
- Compensators:
- Bellows - thermal expansion
- Rubber - vibration isolation
- Stuffing boxes - offset compensation
- Filters and sumpers:
- Mesh filters - protection against large particles
- Magnetic traps - removal of ferromagnetic particles
- Sump trucks - collecting sludge and sediments
Strapping schemes for different types of pumps
Strapping of centrifugal pumps
- Straight section in front of the suction pipe: 5-10 diameters
- Mandatory installation of a check valve on the pressure line
- Installation of shut-off valves on both sides of the pump
- Installation of vibration dampening devices
Strapping of submersible pumps
- Check valve directly above the pump
- Shut-off valves on the surface
- Pressure gauges for pressure monitoring
- Dry running protection
Strapping of circulation pumps
- Bypass line with shut-off valves
- Filter at the pump inlet
- Automatic air vents
- Thermometers for temperature control
Installation recommendations
General installation rules
- Ensuring alignment of connections
- Using supports and suspensions to unload weight
- The use of sealants of the appropriate type
- Observance of tightening torques of threaded connections
Strapping errors
Strapping quality control
High—quality strapping of pumping equipment guarantees long-term and trouble-free operation of the system. The control process includes a complex
