Corrosion-Resistant and NACE Compliant Construction Types 300 and 320 feature aluminum die-castings, finished with irridite and baked epoxy. Materials in the Type 310 meet NACE MR-01-75 requirements. Depth Filter Units come equipped with high capacity 40 micron filter housed in dripwell Two Outlet Connections Provides piping versatility Stable Output and Repeatability Provides constant control under variable flow rates and supply pressures Low Droop At High Flow Levels Aspirator design helps maintain set pressure at higher flow levels Tight Shutoff A soft, rubberized valve provides a positive shutoff and compensates for dirt and other foreign matter Low Air Consumption Decreases operating cost Tapped Exhaust Allows captured exhaust Type 300 Series Instrument Air Filter and Filter Regulators Type 300 Filter Regulator, Type 310 NACE compliant Filter Regulator and Type 320 Filter REGULATOR FEATURES SERIES FEATURES
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Type 300 Series Instrument Air Filter and Filter Regulatorsescventura.com/manuals/conAir_airRegulator_type300_ds.pdfType 300 Filter Regulator The Type 300 Instrument Air Filter Regulator
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Corrosion-Resistantand NACE CompliantConstructionTypes 300 and 320 featurealuminum die-castings, finishedwith irridite and baked epoxy.Materials in the Type 310 meetNACE MR-01-75 requirements.
Depth FilterUnits come equipped with highcapacity 40 micron filter housedin dripwell
Two OutletConnectionsProvides piping versatility
Stable Output andRepeatabilityProvides constant control undervariable flow rates and supplypressures
Low Droop At HighFlow Levels Aspirator design helps maintainset pressure at higher flowlevels
Tight ShutoffA soft, rubberized valveprovides a positive shutoff andcompensates for dirt and otherforeign matter
Low Air ConsumptionDecreases operating cost
Tapped ExhaustAllows captured exhaust
Type 300Series Instrument Air Filter and Filter Regulators
Type 300 Filter Regulator, Type 310 NACE compliant Filter Regulator and Type 320 Filter
R E G U L AT O R F E AT U R E S
S E R I E S F E A T U R E S
Type 300 Filter RegulatorThe Type 300 Instrument Air FilterRegulator is designed to provide clean,accurate air pressure to instruments,valves, and other automatic controlequipment. This filter regulator hasbeen proven to provide accurateoperating characteristics under variableconditions. Durable materials and astandard epoxy paint finish provide longlasting corrosion resistance in harshindustrial environments. The Type 300 isa quality unit that is ideal as aneconomical alternative for control ofprocess applications.
Type 310 NACE Filter RegulatorThis unit incorporates all of theoperating features of the Type 300 filterregulator, but is constructed of materialsthat meet NACE specification #MR-01-75 for sulfide stress cracking. Designedspecifically for corrosive sour gasenvironments, the Type 310 NACE isideal for oil field applications.
Type 320 FilterThe Type 320 Filter unit is a 40-microndepth filter that removes dirt, moistureand other particles from air and gaslines. Robustly constructed of die-castaluminum with a baked epoxy finish,this unit stands up in corrosiveoperating conditions. This filter is aneconomical alternative for air supply lineapplications that don't require apressure reducing regulator.
Type 300Series Rugged and reliable instrument air filtration
S P E C I F I C A T I O N STy p e 3 0 0 Ty p e 3 1 0
Port Size In/Out/Gauge: 1/4" NPT In/Out/Gauge/Exhaust: 1/4" NP
Mounting Pipe, panel, bracket or through body Pipe or through body
Filter 40 micron (optional 5 micron)
Flow Capacity 22 scfm at 100 psig supply 20 scfm at 100 psig supply with 20 psig output with 20 psig output
Exhaust Capacity 0.1 scfm with downstream pressure 5 psig above set point
Sensitivity 1" of water
Air Consumption Less than 5 scfh
Effect of Supply Less than 0.2 psig for 25 psig changePressure Variation
Temperature Limits 0° to 160° F (-18° C to 71° C) -20° F to 180° F (-29° C to 82°
Weight 1.6 lb.
Type 300 and Type 310 Principles of OperationTurning the adjusting screw changes theforce exerted by the range spring on thediaphragm assembly. In equilibrium of setpressure, the force exerted by the rangespring is balanced by the force from theoutput pressure acting underneath thediaphragm assembly. An unbalanced statebetween the output pressure and the setpressure causes a corresponding reaction inthe diaphragm and supply valve assemblies.If the output pressure rises above the setpressure, an upward force is exerted on thediaphragm assembly causing the relief seat tolift and open. Excess pressure is vented toatmosphere until equilibrium is reached. Ifthe output pressure drops below the setpressure the unbalanced force of the rangespring causes a downward force on thediaphragm assembly. The supply valve thenopens until the pressure builds up once moreto the equilibrium condition. Under forwardflow conditions, the range spring force isbalanced by the diaphragm pressure force,with the supply valve open just enough tomaintain the required equilibrium pressure.When high flow occurs, a specially designedaspirator helps maintain downstreampressure and compensates for droop.
AtmospheRegulatedSupply Pr
Effects of Upstream Pressure Variations on Regulated Pressure
Effect of Changes in Flow on Regulated Pressure
and regulation
Ty p e 3 2 0
PT In/Out/Gauge: 1/4" NPT
g (0-400 kPa), N/A
Pipe, bracket or through body
Consult factory
N/A
N/A
N/A
N/A
C) -20° F to 150° F (-29° C to 66° C)
1.3 lb.
M A T E R I A L S
Ty p e 3 0 0Body: Diecast Aluminum Alloy, Irridite and Baked Epoxy Finish
Filter: Phenolic Impregnated Cellulose
Diaphragm: Nitrile Elastomer and Nylon Fabric (Viton® optional)
F - 5 Micron Filter: standard 40 micron filter is replacedwith 5 micron filter for more completeair filtration (available for Type 300and Type 320 only)