Long service life: at least 20 years with at least 3 years of uninterrupted operation
High pressure casing: minimum rated pressure of 4 000 kPa (40 bar) (600 psi) at 38 °C (100 °F)
Closed typecast impeller and high rigidity shaft
Shaft sealing according to API 682
Flanges according to DIN/ANSI/ISO
Shaft run-out limited by 0.025 mm
Replaceable wear rings to reduce wear of casing and axial running clearances
Vibration limit up to 3.0 mm/s in BEP, up to 3.9 mm/s in the rest of the operating range
Dynamic balancing of impellers:
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Single-/two-stage pumps: to ISO 1940-1 grade G1
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Multistage pumps: flow part – ISO 1940-1 grade G1, rotor – ISO 1940-1 grade G2.5
Long bearings life: at least 25000 hours with continuous operation at rated conditions
Standardized baseplates for the maximal alignment of the pump and drive shafts, as well as for increased reliability of the whole pumping unit. Drain rims to catch and keep all leakage within the baseplate
Stringent requirements to hydraulic test: test pressure shall exceed the maximum admissible working pressure (MAWP) by 1.5
