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MEDIUM SIZE STATIONS – 50 TO 80 VEHICLES:
The heart of the medium size filling station is the compressor unit built
around the mechanical block H6 or H8. This simply designed machine
can withstand harsh working conditions with very little maintenance. A
fully automatic filling station (without specialized people for supervision)
is the best place to install this machine for quick fill service (with storage
bottles and dispenser) or slow fill service (with direct connection to vehicles).
FUNCTIONAL DESCRIPTION: GAS AND LUBRICANT
This page explains the gas circuit in the unit with the components used for a
safe operation:
‐ Gas temperature: the gas temperature is maintained close to ambient level
by heat exchanger's located after each compression stage.
‐ Gas quality: gas conditioning is achieved by separators and filters located
after each step of pressurization. A drain mechanism automatically monitored is
devoted to vent condensates. Mechanical blocks are reciprocating design.
Pistons operating on one side are single effect. Heat exchange is fully achieved by ventilated air.
‐ Safeguard of parts in friction: the lubrication circuit delivers oil in any point under hard constraint (pistons,
cylinders, crankshaft and rods) with a regulated under pressure flow.
‐ Control and safety: safety valves and pressure switches are located in accurate positions to check any abnormal
running and to stop immediately the unit.
MECHANICAL BLOCK
Crankcase: Made of aluminum
casting under vacuum
impregnated for tightness
improvement. Crankcase
connected on intake pipe. Oil
filling system allowing lubricant
supply without pollution. Lubricant
level sight glass.
Cylinder head: Bear or hold the
intake and discharge valves.
Fitted with a sufficient number of
fins so as to provide radiating
cooling.
Cylinders: First stage: straight. Second and third stages: stepped for piston guide and compression piston.
The cylinders are distributed according to a half star configuration around the crankcase so as to ensure the proper
ventilation of all the parts. The cast part is fitted with a sufficient number of fins for an efficient heat exchange.
Automatic valves: 1st and 2nd stage: flapper valves. 3rd stage: disk type with return spring.
MECHANICAL CONSTRUCTION
Crankcase: With two bearings and a crank pin. With
balancing weight.
Connecting rods: Three bush‐mounted straight
connecting rods set on the crank pin.
Pistons: 1st stage: straight.
2nd and 3rd stages: stepped.
Shaft end tightness:
Driving mechanism side: lipseal in a high grade
polymer sliding on ceramic layer.
Fan side: lip seal with mechanical reinforced structure.
Heat exchanger's and separators: Two interstages coolers and one final cooler. Each one on second and third
stage has a separator downstream. Recovered condensates are vented through drain mechanisms automatically
piloted.
Fan: Driven by the crankshaft. Installed in a box including coolers of all stages.
ANTI POLLUTION DEVICE LINKED TO THE PROCESS
A complete tightness in the compression cycle helps in
preserving the environment. Two tanks are installed in the
base frame to fulfill the required functions:
Buffer tank on intake: The capacity is supplied with the
gas delivered by the network and ensures a regular supply
to the first compression stage. A solenoid valve set
immediately upstream stops the gas delivery while the
system is shutdown. A pressure switch controls the
presence of the gas at a suitable pressure for the process
(minimum pressure release). The gas is always sent back to the compressor and delivered to the user. Tanks are
linked together. The gas is flowing from one to another (through a pressure regulator: only for H8).
Recovery tank This capacity receives the gas delivered by the compression circuit:
‐ When the high pressure circuit interstages and final is depressurized,
‐ When the interstages and final separators are drained.
UNIT DESCRIPTION
The machine is a compact unit fully enclosed within a hooding which protects it and the persons nearby in
compliance with the European Directive n° 98/392/EEC. The casing which integrates the compression machine is
comprised of:
‐ A bottom plate made of weld fabricated steel which accommodates the anchoring points for shock absorbers linked
to the compressor unit,
‐ Two baffle casings located on each side of the machine and through which the ventilation air flows,
‐ Three detachable plates with cover the machine. The upper one being tilting type. B C
The electrical cabinet is located in a non dangerous area far from gas: at one machine end on the air ventilation
inlet. This cabinet is designed to be pulled at one meter from the unit without any modification in the cable wiring.
Sound damping of the noise of the unit operating full load is carefully achieved. All panels are coated with a high
efficiency absorbing compound. AFSC delivers two different designs according to the sound level authorized in the
unit neighborhood.
DIMENSIONS
A Length: 11 ft. B Max. Height: 6.2 ft.
C Unit Height: 5.5 ft. D Width: 4.1 ft.
OPERATION DATA
Ambient Running Temperature:
‐4° F / 104° F
Nominal Flow:
‐ System Intake Pressure1.5 psi:
Delivers 12 GGE
‐ System Intake Pressure 4.4 psi:
Delivers 20 GGE
Noise level:
Basic sound level: 45 Dba
The heart of the medium size filling station is the compressor unit built
around the mechanical block H6 or H8. This simply designed machine
can withstand harsh working conditions with very little maintenance. A
fully automatic filling station (without specialized people for supervision)
is the best place to install this machine for quick fill service (with storage
bottles and dispenser) or slow fill service (with direct connection to vehicles).
FUNCTIONAL DESCRIPTION: GAS AND LUBRICANT
This page explains the gas circuit in the unit with the components used for a
safe operation:
‐ Gas temperature: the gas temperature is maintained close to ambient level
by heat exchanger's located after each compression stage.
‐ Gas quality: gas conditioning is achieved by separators and filters located
after each step of pressurization. A drain mechanism automatically monitored is
devoted to vent condensates. Mechanical blocks are reciprocating design.
Pistons operating on one side are single effect. Heat exchange is fully achieved by ventilated air.
‐ Safeguard of parts in friction: the lubrication circuit delivers oil in any point under hard constraint (pistons,
cylinders, crankshaft and rods) with a regulated under pressure flow.
‐ Control and safety: safety valves and pressure switches are located in accurate positions to check any abnormal
running and to stop immediately the unit.
MECHANICAL BLOCK
Crankcase: Made of aluminum
casting under vacuum
impregnated for tightness
improvement. Crankcase
connected on intake pipe. Oil
filling system allowing lubricant
supply without pollution. Lubricant
level sight glass.
Cylinder head: Bear or hold the
intake and discharge valves.
Fitted with a sufficient number of
fins so as to provide radiating
cooling.
Cylinders: First stage: straight. Second and third stages: stepped for piston guide and compression piston.
The cylinders are distributed according to a half star configuration around the crankcase so as to ensure the proper
ventilation of all the parts. The cast part is fitted with a sufficient number of fins for an efficient heat exchange.
Automatic valves: 1st and 2nd stage: flapper valves. 3rd stage: disk type with return spring.
MECHANICAL CONSTRUCTION
Crankcase: With two bearings and a crank pin. With
balancing weight.
Connecting rods: Three bush‐mounted straight
connecting rods set on the crank pin.
Pistons: 1st stage: straight.
2nd and 3rd stages: stepped.
Shaft end tightness:
Driving mechanism side: lipseal in a high grade
polymer sliding on ceramic layer.
Fan side: lip seal with mechanical reinforced structure.
Heat exchanger's and separators: Two interstages coolers and one final cooler. Each one on second and third
stage has a separator downstream. Recovered condensates are vented through drain mechanisms automatically
piloted.
Fan: Driven by the crankshaft. Installed in a box including coolers of all stages.
ANTI POLLUTION DEVICE LINKED TO THE PROCESS
A complete tightness in the compression cycle helps in
preserving the environment. Two tanks are installed in the
base frame to fulfill the required functions:
Buffer tank on intake: The capacity is supplied with the
gas delivered by the network and ensures a regular supply
to the first compression stage. A solenoid valve set
immediately upstream stops the gas delivery while the
system is shutdown. A pressure switch controls the
presence of the gas at a suitable pressure for the process
(minimum pressure release). The gas is always sent back to the compressor and delivered to the user. Tanks are
linked together. The gas is flowing from one to another (through a pressure regulator: only for H8).
Recovery tank This capacity receives the gas delivered by the compression circuit:
‐ When the high pressure circuit interstages and final is depressurized,
‐ When the interstages and final separators are drained.
UNIT DESCRIPTION
The machine is a compact unit fully enclosed within a hooding which protects it and the persons nearby in
compliance with the European Directive n° 98/392/EEC. The casing which integrates the compression machine is
comprised of:
‐ A bottom plate made of weld fabricated steel which accommodates the anchoring points for shock absorbers linked
to the compressor unit,
‐ Two baffle casings located on each side of the machine and through which the ventilation air flows,
‐ Three detachable plates with cover the machine. The upper one being tilting type. B C
The electrical cabinet is located in a non dangerous area far from gas: at one machine end on the air ventilation
inlet. This cabinet is designed to be pulled at one meter from the unit without any modification in the cable wiring.
Sound damping of the noise of the unit operating full load is carefully achieved. All panels are coated with a high
efficiency absorbing compound. AFSC delivers two different designs according to the sound level authorized in the
unit neighborhood.
DIMENSIONS
A Length: 11 ft. B Max. Height: 6.2 ft.
C Unit Height: 5.5 ft. D Width: 4.1 ft.
OPERATION DATA
Ambient Running Temperature:
‐4° F / 104° F
Nominal Flow:
‐ System Intake Pressure1.5 psi:
Delivers 12 GGE
‐ System Intake Pressure 4.4 psi:
Delivers 20 GGE
Noise level:
Basic sound level: 45 Dba
