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QB3 ELECTRO-PNEUMATIC REGULATOR

QB3 ELECTRO-PNEUMATIC REGULATOR
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QB3 ELECTRO-PNEUMATIC REGULATOR

Product catalog summary
Overview of QB3 Pressure Regulator:
The QB3 is a versatile pressure regulator designed for precision control from vacuum to 150 psi. It features a robust IP65 enclosure, allowing it to withstand harsh environments and be easily cleaned. The device is equipped with field-serviceable parts, including common o-rings, making maintenance straightforward.
Functional Description:
The QB3 operates as a closed-loop pressure regulator with two solenoid valves, an internal pressure transducer, and electronic controls. It uses standard o-rings for maintenance, and repair kits are readily available. The regulator is designed to be unaffected by supply pressure changes, shock, or vibration.
Theory of Operation:
The QB3's output pressure is proportional to an electrical input signal. Solenoid valves control the pressure in the pilot side of the booster, with one valve managing inlet control and the other exhaust. A feedback loop ensures the desired pressure is maintained, compensating for mechanical hysteresis.
Command and Monitor Signals:
The QB3 accepts command inputs of 0-10Vdc or 4-20mA and provides a monitor signal for data acquisition or quality assurance. This eliminates the need for a separate transducer, as the monitor signal accurately reflects downstream pressure.
Specifications:
  • Operating Temperature: 32ºF to 158ºF (0ºC to 70ºC)
  • Protection: NEMA 4/IP65
  • Pressure Range: Customer specified, up to 150 psig
  • Accuracy: ±0.5% Full Scale
  • Electrical Supply: 15-24VDC, 100-250mADC
Performance Characteristics:
The QB3 demonstrates linear response to step input signals, with flow characteristics detailed in accompanying graphs. It is designed for applications requiring high precision and reliability.
Ordering Information:
The QB3 can be customized with various options for command input, monitor signal, and calibrated range. Accessories such as mounting brackets and digital displays are available.
Warranty and Safety:
Proportion-Air offers a one-year warranty against defects, with liability limited to repair or replacement. Proper installation and supervision are required to ensure safe operation.
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Catalog excerpts

QB3 ELECTRO-PNEUMATIC REGULATOR-1

BRPS4515-24 table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:6.00pt "Arial", sans-serif; } .font1 { font:11.00pt "Arial", sans-serif; } .font2 { font:14.00pt "Arial", sans-serif; } .font3 { font:40.00pt "Arial", sans-serif; } .font4 { font:29.00pt "Franklin Gothic Medium", sans-serif; } BRQB011206E DESIGN * ENGINEERING ' MANUFACTURING * SALES PRESSURE " FLOW * FORCE " TENSION * POSITION ' TORQUE " VACUUM v PROPORT/ON THE FUTURE OF CONTROL Let's Ta/A 317-335-2602 P.O. Box218, McCordsville, Indiana 46055 www.proporti

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QB3 ELECTRO-PNEUMATIC REGULATOR-2

BRPS4515-24 table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:6.00pt "Arial", sans-serif; } .font1 { font:8.00pt "Arial", sans-serif; } .font2 { font:11.00pt "Arial", sans-serif; } THE INSIDE STORY OF THE QB3: IP65 enclosure allows it to withstand the lments and be washed down without harm Access hole allows adjustments in the field Easy tuning of system stability Adjustable hysteresis band Available in a wide range of electrical control input and analog output Precision pressure control vacuum to 150 psi (10.34 bar ) at high flow rate saves space and the number of...

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QB3 ELECTRO-PNEUMATIC REGULATOR-3

BRPS4515-24 table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:6.00pt "Arial", sans-serif; } .font1 { font:10.00pt "Arial", sans-serif; } .font2 { font:11.00pt "Arial", sans-serif; } .font3 { font:29.00pt "Franklin Gothic Medium", sans-serif; } FUNCTIONAL DESCRIPTION The QB3 is a closed loop pressure regulator consisting of two solenoid valves, an internai pressure transducer, and electronic controls all integrally mounted to our unique volume booster. THEORY OF OPERATION The output or "work" pressure is proportional to an electrical input or "command signal". The...

 Open the catalog to page 3
QB3 ELECTRO-PNEUMATIC REGULATOR-4

BRPS4515-24 table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:6.00pt "Arial", sans-serif; } .font1 { font:7.00pt "Arial", sans-serif; } .font2 { font:10.00pt "Arial", sans-serif; } .font3 { font:11.00pt "Arial", sans-serif; } .font4 { font:12.00pt "Arial", sans-serif; } QB3 GENERAL SPECIFICATIONS & PERFORMANCE CHARACTERISTICS ELECTRICAL MINIMUM TYPICAL MAXIMUM Supply Voltage 15VDC - 24VDC Supply Current 100mADC - 250mADC Command Signal Voltage 0VDC - 10VDC Current 4mADC - 20mADC Analog Monitor Output Voltage 0VDC - 10VDC Current (Sourcing) 4mADC - 20mADC Command Signal...

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QB3 ELECTRO-PNEUMATIC REGULATOR-5

table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:6.00pt "Arial", sans-serif; } .font1 { font:7.00pt "Arial", sans-serif; } .font2 { font:8.00pt "Arial", sans-serif; } .font3 { font:9.00pt "Arial", sans-serif; } .font4 { font:10.00pt "Arial", sans-serif; } .font5 { font:11.00pt "Arial", sans-serif; } .font6 { font:12.00pt "Arial", sans-serif; } .font7 { font:14.00pt "Arial", sans-serif; } .font8 { font:15.00pt "Arial", sans-serif; } .font9 { font:16.00pt "Arial", sans-serif; } .font10 { font:17.00pt "Arial", sans-serif; } .font11 { font:24.00pt "Arial", sans-serif;...

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QB3 ELECTRO-PNEUMATIC REGULATOR-6

table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:12.00pt "Arial", sans-serif; } .font1 { font:14.00pt "Arial", sans-serif; } .font2 { font:15.00pt "Arial", sans-serif; } .font3 { font:17.00pt "Arial", sans-serif; } .font4 { font:61.00pt "Arial Black", sans-serif; } .font5 { font:23.00pt "Times New Roman", serif; } ORDERING INFORMATION QB3 F E c I XXX Sxxx SERIES MONITOR SIGNAL MAXIMUM CALIBRATED RANGE \/acuum-150psig' SPECIAL OPTIONS DIGITAL DISPLAY MONITOR E = 0-10VDC C = 4-20mA Sinking S = 4-20mA Sourcing COMMAND IN PUT D = Digital display BLANK = No display CONTAINER...

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QB3 ELECTRO-PNEUMATIC REGULATOR-7

table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:8.00pt "Arial", sans-serif; } .font1 { font:10.00pt "Arial", sans-serif; } .font2 { font:11.00pt "Arial", sans-serif; } .font3 { font:12.00pt "Arial", sans-serif; } .font4 { font:14.00pt "Arial", sans-serif; } .font5 { font:15.00pt "Arial", sans-serif; } .font6 { font:17.00pt "Arial", sans-serif; } .font7 { font:24.00pt "Arial", sans-serif; } .font8 { font:5.00pt "Times New Roman", serif; } QBT-01MOUNTING BRACKET QBT-02 MOUNTING BRACKET R 1/4 T>*U M PLtD la Slalion DIM "A" DIM 'B* Weight 2 363 4 13 26lbs 3 5 75 6 25...

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QB3 ELECTRO-PNEUMATIC REGULATOR-8

BRPS4515-24 table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:7.00pt "Arial", sans-serif; } Proportion-Air products are warranted to the original purchaser only against dtecte in material or workmanship for one (1) year from the date of manufacture. The extent of Proportion-Air's liability under this warranty is limited to repair or replacement of the defective unit at Proportion-Air's option. Proportion-Air shall have no liability under this warranty where improper installation or filtration occurred. All specifications are subject to change without notice. THIS...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.