Rotating Equipment Specialists
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In Piping Plan 72 there is externally supplied buffer gas for Arrangement 2 seals. Buffer gas is maintained at a pressure less than seal chamber pressure. In normal operation, the buffer gas pressure should not exceed 0.07 MPa (0.7 bar) (10 psi). [API 682; G.30]. This plan can be used in combination with a Plan 75 or Plan 76 where the buffer gas sweeps seal leakage away from the outer seal to a collection reservoir. Leakage can be diluted so that the missions from the seal are reduced.
In Piping Plan 74 there is externally supplied barrier gas for Arrangement 3 seals. Barrier gas is maintained at a pressure greater than seal chamber pressure. [API 682; G.31] With this type of system most of the barrier gas leaks into the atmosphere.
- SS panel with 316SS tubing and fittings
- Pressure gauge
- Pressure switch with instrument valve
- Pressure control valve
- Coalescing filter
- CS valves
- API 682 compliant
- SS valves
- All instrument types, ranges, and certifications
- Special barrier fluid compatibility
- Support stand
- Custom design