SO is a single-stage, overhung, horizontal, center support, radially split process pump that fully complies with the latest API 610 standards. It has the widest performance range in the industry and can be used for heavy oil refining, petrochemical, gas processing and offshore oil extraction services.
Main advantages：
SO series has the widest OH2 performance range in the industry - over 120 hydraulics.
More than 90 hydraulics under the conditions of 11000 Nss or less.
80% to 110% of best efficiency range selection, according to API 610 standards, and the high efficiency performance range is fully covered.
Lower NPSHr impellers available in most sizes.
Closed or open, dynamically balanced, efficient and stable operative impeller
Optimized wear ring and balance hole to maximize seal and bearing life.
Finned bearing housing and fan cooling extend bearing life.
ISO 13709 (API 610) compliant OH2 pump has the most extensive performance range in the industry
The casing design meets 2 times ISO 13709 (API 610) nozzle load requirement
Optional heavy-duty baseplate that withstands 2 times ISO 13709 (API610) nozzle load
ISO 21049 (API 682) cartridge mechanical seal to reduce leakage
Motor or turbine drive
Typical application:
Seawater booster pump
High temperature decompression tower bottom pump
Low pressure feed pump
Light Vacuum Gas oil (LVGO) and Heavy Vacuum Gas Oil (HVGO) pump
Fractionator bottom pump
Main design features :
Pressure rating is designed according to ISO 13709 / API 610 ultimate tensile strength 25% x 0.80 casting coefficient, plus 3mm (1/8”) corrosion allowance
All SO horizontal pumps are self-venting. Most of them are discharged from the center line, except for a few very large sizes that are discharged along the tangential direction, but are still self-venting.
Double volute design
Rigid shaft design with minimum deflection
Purge oil mist or pure oil mist lubrication is optional
300# standard flange rating with optional 600#
11,000 standard cavitation specific speed (Nss)
Optimized suction performance for most sizes
Main performance:
Volume up to 2,250 m3/h / 10,000 US gallons/minute
Head up to 360m / 1,200 ft
Pressure up to 75 bar / 1,100 psi
Temperature: -75 °C to +425 °C / -100 °F to 800 °F
Outlet size: 25 to 400 mm / 1 to 16 inches
Maximum speed up to 3,600 rpm
