3 Phase Separator P&ID
This P&ID illustrates a 3-phase horizontal separator vessel that receives a mixed 3-phase inlet stream and separates it into vapor, oil, and water. The vapor outlet is regulated by a pressure control loop. The oil and water outlets are each managed by separate level control loops, with internal weirs and vortex breakers ensuring efficient separation and withdrawal.
Source: instrumentationtools.com_piping-and-instrumentation-diagram.jpg · Components: 33 (1 equipment, 6 instrument, 21 valve, 5 line)
Equipment (1)
| Tag | Description | Details | Connects to |
|---|---|---|---|
| separator-vessel | 3 Phase Separator Vessel | Horizontal vessel with demister pad, weir, and vortex breakers. | inlet-line, vapor-outlet-line, oil-outlet-line, water-outlet-line, psv-1, LT-1, LT-2, PT |
Instruments (6)
| Tag | Function (ISA 5.1) | Description | Details | Connects to |
|---|---|---|---|---|
| PT | PT = Pressure Transmitter, field mounted | Pressure Transmitter | — | separator-vessel, PC |
| PC | PC = Pressure Controller, shared display/control | Pressure Controller | — | PT, PV |
| LT-2 | LT = Level Transmitter, field mounted | Oil Level Transmitter | — | separator-vessel, LC-2 |
| LC-2 | LC = Level Controller, shared display/control | Oil Level Controller | — | LT-2, LV-2 |
| LT-1 | LT = Level Transmitter, field mounted | Water Level Transmitter | — | separator-vessel, LC-1 |
| LC-1 | LC = Level Controller, shared display/control | Water Level Controller | — | LT-1, LV-1 |
Valves (21)
| Tag | Description | Details | Connects to |
|---|---|---|---|
| inlet-valve | Inlet Isolation Valve | Gate valve with pneumatic actuator | inlet-line, separator-vessel |
| vapor-valve-1 | Vapor Outlet Isolation Valve 1 | Gate valve with pneumatic actuator | vapor-outlet-line, vapor-manual-valve-1 |
| vapor-manual-valve-1 | Vapor Outlet Manual Valve 1 | Manual gate valve | vapor-valve-1, PV |
| PV | Pressure Control Valve | Pneumatic control valve | vapor-manual-valve-1, vapor-manual-valve-2, PC |
| vapor-manual-valve-2 | Vapor Outlet Manual Valve 2 | Manual gate valve | PV, vapor-valve-2 |
| vapor-valve-2 | Vapor Outlet Isolation Valve 2 | Manual gate valve | vapor-manual-valve-2, vapor-outlet-line |
| psv-iso-valve | PSV Isolation Valve | Gate valve | psv-line |
| psv-1 | Pressure Safety Valve | Relief valve, angle type | psv-line |
| psv-bypass-valve | PSV Bypass Valve | Globe valve | psv-line |
| oil-valve-1 | Oil Outlet Isolation Valve | Gate valve with pneumatic actuator | oil-outlet-line |
| oil-manual-valve-1 | Oil Outlet Manual Valve 1 | Manual gate valve | oil-outlet-line, LV-2 |
| LV-2 | Oil Level Control Valve | Pneumatic control valve | oil-manual-valve-1, oil-manual-valve-2, LC-2 |
| oil-manual-valve-2 | Oil Outlet Manual Valve 2 | Manual gate valve | LV-2, oil-outlet-line |
| oil-drain-valve | Oil Drain Valve | Manual valve to drain/flare | oil-outlet-line |
| oil-bypass-valve | Oil Bypass Valve | Globe valve | oil-outlet-line |
| water-valve-1 | Water Outlet Isolation Valve | Gate valve with pneumatic actuator | water-outlet-line |
| water-manual-valve-1 | Water Outlet Manual Valve 1 | Manual gate valve | water-outlet-line, LV-1 |
| LV-1 | Water Level Control Valve | Pneumatic control valve | water-manual-valve-1, water-manual-valve-2, LC-1 |
| water-manual-valve-2 | Water Outlet Manual Valve 2 | Manual gate valve | LV-1, water-outlet-line |
| water-drain-valve | Water Drain Valve | Manual valve to drain/flare | water-outlet-line |
| water-bypass-valve | Water Bypass Valve | Globe valve | water-outlet-line |
Lines (5)
| Tag | Description | Details | Connects to |
|---|---|---|---|
| inlet-line | 3 Phase Inlet Line | 3 Phase Inlet | inlet-valve, separator-vessel |
| vapor-outlet-line | Vapor Outlet Line | Vapor Outlet | separator-vessel, vapor-valve-1, PV, vapor-valve-2 |
| psv-line | PSV Line | — | separator-vessel, psv-iso-valve, psv-1, psv-bypass-valve |
| oil-outlet-line | Oil Outlet Line | Oil Outlet | separator-vessel, oil-valve-1, oil-manual-valve-1, LV-2, oil-manual-valve-2, oil-bypass-valve |
| water-outlet-line | Water Outlet Line | Water Outlet | separator-vessel, water-valve-1, water-manual-valve-1, LV-1, water-manual-valve-2, water-bypass-valve |
Notes on drawing
- 3 Phase Inlet
- Demister pad
- Vortex Breakers
- Weir
- Vapor Outlet
- Oil Outlet
- Water Outlet