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                  Advanced Specialty Gas Equipment


                  FRUIT RIPENING GAS EQUIPMENT
                  SG3090 Series
                  Equipment for Fruit Ripening Gases

                  SG091 RegulatorEthylene, and ethylene containing mixtures (such as Banana Gas) are specialty gases which are commonly used to initiate the de-greening or ripening of fruits and vegetables. Typically this process is conducted in "controlled atmosphere" ripening rooms where the temperature and humidity is controlled. The pressure and flowrate of the ripening gas must also be properly controlled for the process to be both safe and effective.

                  Advanced has developed special equipment for this application. The Model SG3091 is a regulator/flowmeter combination designed to mount directly to a ripening gas cylinder.This can be used for either stationary, single-room applications, or as a portable ripening package by mounting the cylinder on a suitable cylinder cart. It provides for flowrates between 100 and 950 standard cubic centimeters/minute. Conversely, the ModelSG3902 regulator is designed to be used in conjunction with our flowmeter control panels(SG3093 – SG3096) for stationary, multiple-room applications. This combination allows control of the ripening gas feed to between 2–5 ripening rooms simultaneously – using just a single ripening gas cylinder.

                  Dependent on the specific fruit or vegetable, ripening or de-greening is achieved by maintaining specific Ethylene and Carbon Dioxide concentrations within the ripening room(along with specific temperature, humidity and time controls). The Ethylene and Carbon Dioxide levels can be inexpensively monitored using our optional Gastec Gas Detector in conjunction with the appropriate Gas Detector Tubes.


                  Standard FeaturesSG3094 Three-Room Control Panel and SG3092 Regulator
                  • Two-Stage Regulator Design ensures constant delivery pressure
                    (to flowmeter)over varying inlet pressures.
                  • Filter in Each Regulator Seat Assembly traps foreign matter, extends regulator life and reduces maintenance.
                  • Ribbed Flowmeter Tubes stabilize float and improve accuracy and readability.
                  • Flowmeter Valve Design allows metering control and bubbletight shutoff.
                  • Unique Stationary Control Panel Design allows additional flowmeter stations (up to a maximum of five) to be added to meet future requirements.
                  Optional Features
                  • Gastec Gas Detector and Detector Tubes allow periodic monitoring of ethylene and carbon dioxide levels within the ripening room(s).
                  • Flowmeter Station Kit provides the necessary equipment for adding a flowmeter station to a control panel.
                  • Optional Flowmeters can be substituted to custom fit a flow requirement.

                  Specifications
                  Regulators:
                     Maximum Inlet Pressure

                     Inlet Pressure Gauge

                     Delivery Pressure Range: 3–15 psig

                     Delivery Pressure Gauge: 0–30 psig
                      red-lined above 15 psig

                     Gauge Size: 2" Dial

                     Operating Temperature Range:
                       SG3091: 32°F to 165°F
                       SG3092: -40°F to 165°F

                     Flow Coefficient: Cv = 0.02

                     Inlet Connection

                     Outlet Connection: 1⁄4" compression

                    Supply Pressure Effect:  0.05 psi per 100 psi

                     Approximate Weight:
                       Model SG3091: 6 lbs
                       Model SG3092: 5 lbs

                  Flowmeters:
                    Maximum Operating Pressure and
                      Temperature: 200 psig at 250°F

                    Minimum Operating Temperature: 32°F

                    Accuracy: ±10% of full scale from
                       10% to 100% of range

                    Repeatability: Within 0.5% of full scale

                    Tube Graduations: Standard cubic centimeters per     minute of Air(optional flowmeter tubes may be     graduated in standard liters per minute of air     depending on range)

                    Scale Length: 65 millimeters

                    Flow Range: 100–950 sccm
                      (0.21–2.0 scfh) other ranges are available

                    Stationary Control Panels:
                      Maximum Operating Pressure: 35 psig

                    Operating Temperature Range: +32°F to 165°F

                    Relief Valve (self re-seating): 50 psig

                    Inlet and Outlet Connections: 1/4" compression

                    Approximate Weight: 5 lbs

                  Materials of Construction
                  Regulators:
                    Body: Brass Forging
                    Gauges: Brass
                    Other Metal Parts Exposed to Gas: Brass and     Stainless Steel
                    Seats and Seals: PTFE
                    Diaphragms: Neoprene

                  Flowmeters:
                    Tube: Borosilicate Glass with float stops of PTFE
                    Floats: Type 316 Stainless Steel or Glass
                    End Blocks, Inlet/Outlet Adaptor
                      and Side Plates: Aluminum
                    Back Plate: White Plastic
                     Front Plate: Clear Plastic
                     Seals and Packing: Viton®
                    Valve: Type 316 Stainless Steel

                  Stationary Control Panels:
                    Compression Fittings: Brass
                    Tubing: Polyethylene
                    Panel: Painted Drawn Steel
                    Relief Valve: Brass and Stainless Steel
                    Relief Valve Seals: Buna-N

                  Optional Equipment

                  Equipment Part No.
                  Flowmeter Station Kit – Parts required for adding a flowmeter station to a stationary control panel SG3097
                  Flowmeters with the following flowrates Air @70°F and 14.7 psia) can be substituted in place of the standard 100–950 sccm range flowmeter:  
                    8.0–50 sccm (0.017–0.10 scfh) FM4350-0
                    5.0–85 sccm (0.011–0.18 scfh) FM4350-1
                    40–440 sccm (0.085–0.93 scfh) FM4350-2
                    0.2–1.8 slpm (0.42–3.8 scfh) FM4350-4
                    0.4–3.6 slpm (0.85–7.6 scfh) FM4350-5
                    0.5–7 slpm (1.1–14.8 scfh) FM4350-6
                    1.0–13 slpm (2.1–27.5 scfh) FM4350-7
                    6.0–24 slpm (12.7–50 scfh) FM4350-8
                    4.0–44 slpm (8.5–93 scfh) FM4350-9
                  Gastec Gas Detector SG4010
                  Ethylene Gas Detector Tubes (25–800 ppm measurable range)for use with SG4010 Gas Detector – Box of 10 Tubes
                  SG4102-172
                  Carbon Dioxide Gas Detector Tubes (0.13 – 6% measurable range)for use with SG4010 Gas Detector – Box of 10 Tubes
                  SG4100-2L
                  Cylinder Wall Brackets and Stands  
                  Cylinder Carts  

                  Table I, Cylinder Regulators

                  Part No. Configuration Inlet
                  Pressure (psig)
                   
                  Max. Gauge Delivery Range
                  SG3091-320 Banana Gas Cylinder Regulator with Flowmeter for use with portable packages 1000 1000 100–950
                  sccm (Air)
                  SG3091-350 Ethylene Gas Cylinder Regulator with Flowmeter for use with portable packages 2000 2000 100–950
                  sccm (Air)
                  SG3092-320 Banana Gas Cylinder Regulator for use with stationary control panels 1000 1000 3–15 psig
                  SG3092-350 Ethylene Gas Cylinder Regulator for use with stationary control panels 2000 2000 3–15 psig

                  Table II, Stationary Control Panels

                  Part No. Description
                  SG3093 Two-Room Control Panel
                  SG3094 Three-Room Control Panel
                  SG3095 Four-Room Control Panel
                  SG3096 Five-Room Control Panel
                   
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