station design considerations - ohiogasassoc.org
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Meter & Regulator Station Design
1
Design Data
Minimum / Maximum Pressures
MAOPS
Design Pressures
Test Pressures
Minimum / Maximum Flows
Future loads
Gas Quality
2OGA 2014 Technical Seminar
Siting
Preliminary station design
Space requirements (lot)
Electric, phone, other
Fence, walls, gates (drive & man)
Buildings, enclosures
Vehicular protection
Other land rights (including aerial, mining & building setbacks)
Other Locations / Options
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Siting
4OGA 2014 Technical Seminar
Station Layout
Filters / separators
Heaters
Block valve setting(s)
Meter setting(s)
Regulator setting(s)
Pressure recorder
M & R building foundation(s)
Telecommunication building
Pipe supports & foundation(s)
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Regulator Sizing & Selection
Over-pressure protection
Monitor regulation
Relief valve(s)
Shut-off valve(s)
Parallel or Redundant Runs
Run sequencing
Token relief
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Meter Selection
Meter typeOrifice
Diaphragm
Rotary
Turbine
Ultrasonic
Other
Single run
Multiple runs
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Inlet & Outlet Piping Sizing
40 mph (58.7 ft/sec)
60 mph (88 ft/sec)
Can you afford pressure loss?
Meter and Regulator Headers
13.6 mph (20 ft/sec)
20 mph (29.3 ft/sec)
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Valves & Fittings
ASME/ANSI CLASSES
pressure, temperature rating
Material grade (pipe: Grade B, X42, etc.)
Wall thickness
Valves
Ball, gate, plug
o Weld
o Flanged
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Regulator Control Lines
Tap(s)
Size
Location
Supply gas
10OGA 2014 Technical Seminar
By-Passes
Station
Meter run
Regulator run
One valve
Two valves
Regulator
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Station Pressure Drop
Valves
Heaters
Separators
By-pass
Piping
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Instrumentation
Communication medium
Sensors
Pressure transducers
Temperature transducer
Meter signal
Pressure recorders
Mechanical
Electronic
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Design for Installation
Above / Below Grade
Valve Hand Wheels
Height of Building vs. Meter
/ Regulator Settings
Ease of Replacement Weight of equipment
Future – Regulation / Meter
Replacement
14OGA 2014 Technical Seminar
Design for Operation & Maintenance
Space between settings
Space between runs and building walls
Height of settings
Crane
15OGA 2014 Technical Seminar
Other Considerations
R/W’s, Easements
Permits
Public concerns
Environmental
Costs
Reliability
Future
Growth vs. decline
16OGA 2014 Technical Seminar
Questions?
17OGA 2014 Technical Seminar