GSG DIFFUSER STYLE BARREL PUMP

Best value barrel pump to reduce costs in your plant

The GSG pump is the least costly form of ISO 13709 / API 610 Type BB5 high-pressure barrel pumps. The GSG back-to-back rotor stack is supplied on low- density services where rotor stability is critical. GSG pumps are installed around the world in power plants, refineries, and petrochemical plants.

Main benefits

Inline rotor stack reduces costs
Back-to-back rotor stack allows up to 16 stages on low-density fluids
Multiple sizes cover a broad hydraulic range
Low-pressure, high-pressure, twistlock, and high-temperature designs suit many applications
Multiple sourcing factories to meet local logistical needs

Main applications

Boiler feed
High-pressure unit charge in refining
Ethylene shipping
Onshore and offshore waterflood
Offshore crude shipping

Main design features

Inline rotor stack
Optional back-to-back rotor stack
Single suction or double suction first-stage impeller in many sizes for reduced Net Positive Suction Head (NPSH)
Broad hydraulic coverage in both flow and pressure
Variety of barrel closure methods and barrel designs to suit process conditions

Key characteristics

Capacities	Up to 900 m³/h / 4,600 US gpm
Heads	Up to 2,600 m / 10,000 ft
Pressures	Up to 300 bar / 4,500 psi
Temperatures	From -30 °C to 425 °C / -20 °F to 800 °F
Discharge sizes	From 40 to 200 mm / 1.5 to 8 inches
Maximum speed of rotation	Up to 3,600 rpm