1. Read before installing — Pre-installation checklist
The items below must be observed and verified before installation to avoid pump damage, warranty loss and ensure best performance. This list is reproduced from the FBEI Technical Manual (MAN001-10, page 4).
- Install the pump as close as possible to the suction point
- The suction piping should have the fewest possible fittings and bends
- Suction piping diameter must be at least equal to the pump suction nozzle
- Install a 40 to 80 mesh strainer (depending on model) with the largest possible flow area to prevent cavitation
- After connecting piping, verify alignment between pump and driver. Rotate the shaft manually at least one full turn
- Suction and discharge piping must be properly supported and aligned with nozzles — no pipe stress on the pump
- Do not overtighten flange bolts. Use flexible connections whenever possible
- Never use the relief valve for pressure or flow control. The relief valve protection cap must face the suction side
- Verify that the relief valve opening pressure is correctly adjusted
- For pumps without relief valve, install line protection: valve, pressure switch, torque limiter, etc.
- Install a permanent strainer before any test or startup. If not possible, use a temporary witch-hat type strainer
- For pumps with heating jacket: maximum steam 185°C and/or 10 bar; maximum thermal fluid 232°C and/or 10 bar
- Ensure the mechanical seal is correctly adjusted with all accessories and auxiliary fluids installed and connected
- Verify that all operating conditions match those specified in the pump data sheets and certified documents
2. Foundation and leveling
Before installing, make sure the floor and beams support the full load of the foundation plus the pump. Follow the base housing dimensions per the assembly drawing.
After pouring the concrete, level the assembly. Place the unit on the foundation using shim plates between the base and foundation. Do not tighten anchor bolts yet. With the base level, proceed to align the suction and discharge flanges with the piping.
Grouting fills the space between the foundation and the pump base with self-leveling grout. Build a form around the foundation. When the grout cures, make piping connections and recheck alignment.
3. Pump-motor alignment
Correct pump-motor alignment is one of the most important aspects of installation. Misaligned machines cause vibration, premature component wear and mechanical seal failure. Pumps leave the factory pre-aligned, but shipping and handling will misalign the assembly.
Use a dial indicator or laser for alignment. If unavailable, use a straight edge (parallel alignment, longitudinal direction) and feeler gauge (angular alignment, axial direction). Follow the coupling manufacturer recommended gap.
4. Pre-operation actions
With the foundation cured, piping connected and alignment verified, execute the following sequence before the first startup:
- Secure the pump and driver firmly to the base
- Secure suction and discharge piping
- Connect auxiliary piping and connections (if applicable)
- Make electrical connections. Ensure all motor protection systems are adjusted and working
- Verify driver rotation direction with pump uncoupled — avoid dry-running
- Ensure the rotating assembly turns freely by hand
- Verify alignment per the procedure in the previous section
- Install the coupling guard
- Prime the pump: fill the suction piping with water or the process fluid, simultaneously venting all air
- Ensure packing gland nuts are only finger-tight (packed pumps)
- Fully open the suction valve and close the discharge valve
5. Startup and monitoring during operation
With the pre-operation checklist completed, proceed to startup. Monitor the parameters below continuously during the first hours of operation:
- Adjust the pump to the operating point (pressure and flow) by slowly opening the discharge valve once the driver reaches nominal speed
- Monitor the motor current draw (amperage) and compare with supply voltage
- Verify that suction pressure matches the design
- Ensure the pump operates free from abnormal vibration and noise
- Monitor bearing temperature: it may reach up to 50°C above ambient, but must not exceed 90°C
6. Shipping and storage
Shipping must follow applicable safety standards. Never use a single lift eye (on the motor or pump) to lift the complete assembly. Use proper rigging devices rated for the total weight.
For storage: keep free from moisture, dust, vapors and salinity. Remove packing before storage. Clean mechanical seals dry, without liquids. Wrap in waterproof material. Plug all connections (suction, discharge, drains, pressure taps).
7. Recommended spare parts (2-year kit)
The FBEI technical manual recommends stocking the following spare parts kit for 2 years of operation:
- Internal gear
- Pin
- Support and internal gear bushing
- Sealing kit: packing set or mechanical seal + bearing
8. Note on confined spaces and high temperatures
In confined spaces: the equipment must have proper isolation and the junction box must comply with confined space standards. Coupling guards and any added plates must be brass or aluminum (non-sparking). Install warning signs per the environment type. Check noise and vibration. Before start, verify no objects can cause sparks. Do not start the equipment if any leak could cause a reaction in the environment.
For high-temperature pumps: install a ventilation system and monitor pressure gauge and thermometer periodically.
