The blowcase pump is very well suited for moving fluids at low pressure or even atmospheric pressures, and can be used to discharge liquids into a higher pressured line. Drive gas is usually taken from a high pressure source on skid. When the liquid being pumped reaches a predetermined high level, control valves are closed on the inlet and equalizing lines. A control valve on the power gas opens, blowing high pressure gas into the blowcase. The blowcase outlet, with either a check valve or another control valve opens allowing the power gas to drive the liquids out.
Uses & Features of Blowcase Pumps
- Circulating heating fluids to heat off-skid equipment
- Discharging produced liquids from a vessel that is operating near vacuum
- Mechanical or pneumatic operation
- Blowcase sizing
- Choice of controls
- Conformance to NACE Specifications