QPV1

QPV1
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QPV1

Product catalog summary
Functional Description: The QPV and MPV series are high-resolution closed-loop electronic pressure regulators with an IP65 enclosure for durability. They feature adjustable hysteresis, system stability, an internal pressure transducer, vacuum control, and multiple mounting options. The QPV weighs 1.02 lbs, and the MPV weighs 0.8 lbs, supporting a wide range of electrical control inputs and analog outputs.
Technology and Features: These regulators use advanced technology with two internal solenoid valves, an integrated pressure sensor, and electronic controls. They offer improved resolution, virtually zero dead band, and longer valve life, eliminating digital stepping and excessive valve wear.
Dual Sensor Versions: The QPV2 and MPV2 models include dual sensors for precise pneumatic control, enhancing accuracy by adjusting inlet and exhaust valves based on feedback signals.
Command and Monitor Signals: Standard units come with a 0-10 VDC command signal, with optional 4-20 mA signals. The QPV2 and MPV2 models offer additional monitoring capabilities for downstream sensors.
Specifications and Performance: Specifications include operating temperature, environmental protection, weight, and electrical and pneumatic characteristics. The series is designed for positive pressure and vacuum applications, with gauge or absolute calibration options.
Theory of Operation: The QPV1 and MPV1 models convert electrical signals into pneumatic outputs using a closed-loop control system, featuring proportional inlet valves and standard exhaust valves for precise pressure control.
Accessories and Ordering Information: Details on available accessories, such as power cords and mounting brackets, and ordering information for customizing units based on application needs are provided.
Performance Characteristics: Charts illustrate the linearity and response of the QPV and MPV products to command signals, highlighting superior performance compared to traditional devices.
Overview: The document discusses the use of Proportion-Air control valves, specifically the QPV1 and MPV1 models, in applications like leak testing and force control, emphasizing precision and reliability in industrial settings.
Specifications: The QPV1 is suitable for low flow, low pressure applications, while the MPV1 is used in high-resolution force control applications, particularly with Air-Pel cylinders, designed for space-constrained environments.
Procedures:
  • Leak Testing: The QPV1 valve pressurizes the test part, monitored by the DS-Series pressure transducer. The controller records leak decay, and pressure is relieved upon test completion.
  • Force Control: The MPV1 valves control force on Air-Pel cylinders to test automotive parts' breaking points, allowing precise force application and compensation for air bearing leakage.
  • Dispensing: The QPV1 controls air pressure over flux to regulate the amount dispensed, ideal for low flow applications.
Warranty and Liability: Proportion-Air products have a one-year warranty against material or workmanship defects, limited to repair or replacement, excluding liability for improper installation or filtration. Buyers waive claims for consequential damages or implied warranties.
Safety Warning: Installation and use should be supervised by qualified personnel to prevent injury or death.
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Catalog excerpts

QPV1-2

THE INSIDE STORY OF THE QPV OR MPV: QPV2 or MPV2 Accepts Feedback Signal from an External Sensor Access Hole Permits Field Adjustments QPV has an IP65 Enclosure Allows it to Endure the Elements and be Washed Down Without Harm Electronic Control Circuit Pressure Zero and Pressure Span Adjustments Available in a Wide Range of Electrical Control Inputs and Analog Outputs Adjustable Hysteresis Band & System Stability Many Connector Options Proportional Inlet Valve Mounts in any Position Exhaust Valve Multiple Mounting Brackets Available 1/8” NPT Supply Port QPV Weights 1.02 LBS (0.5 KG) MPV Weights...

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QPV1-3

The QPV member of the ultra high resolution family is designed for applications where the environment requires that the internal components are protected. The anodized aluminum housing of the QPV offers NEMA 4 or IP65 rated protection for this fully enclosed version. Several different mounting configurations and mounting accessories are available. The MPV version has been designed for OEM applications where protection from the environment is not necessary. The MPV incorporates extremely versatile mounting capabilities that allows for DIN rail mounting, panel mounting or manifold mounting of the...

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QPV1-4

QPV OR MPV GENERAL SPECIFICATIONS & PERFORMANCE CHARACTERISTICS ELECTRICAL Supply Voltage Supply Current Command Signal Voltage Current Analog Monitor Output Voltage Current Command Signal Impedance Voltage Current 110% of full scale calibration 20 micron ±0.02%F.S. ±0.25%F.S. ±0.3%F.S. ±0.02%F.S. ±0.02%F.S. 1/8 inch NPT Female 3 in³ Operating Temperature Environment Protection (6) QPV MPV Weight QPV Panel Mount MPV Manifold Mount MPV DinRail Mount MPV Electrical Connector QPV MPV NEMA 4/IP65 Open Frame 6 pin Hirshman Connector 6 pin Din Connector Inlet Pressure (1) Pressure Range (2) Flow Rate...

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QPV1-5

QPV OR MPV PERFORMANCE CHARACTERISTICS RESPONSE TO STEP INPUT LINEARITY LINEARITY RESPONSE TO STEP INPUT Command [Volts] This chart shows the linear characteristics of QPV or MPV products when given a ramp signal from 0-10 volts. Characteristics would be similar for 420 mA units. Times for QPV or MPV (0.040” valve orifice) to fill/exhaust a closed chamber. Step command signal is superimposed over pressure trace. Time is determined by difference between command signal and pressure achieved. When flow or leakage is present in the system, traditional two valve I/P’s bleed down and then actuate the...

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QPV1-6

SERIES DIGITAL DISPLAY COMMAND INPUT CONTAINER T = IMPACT ALUM. 1 = SINGLE SENSOR 2 = TWO SENSOR MONITOR SIGNAL INLET VALVE ORIFICE SIZE ¹ E = 0-10VDC C = 4-20mA Sinking S = 4-20mA Sourcing MAXIMUM CALIBRATED RANGE VAC-150 psi* D = Digital display BLANK = No display Cx REQUIRED FOR ALL QPV VALVES Factory determined based on the specifications of the application BLEED ORIFICE ² SPECIAL OPTIONS* L = BLEED ORIFICE BLANK = NO ORIFICE S86-100 = ABSOLUTE SENSOR, 100 PSIA RATING * Consult Factory for More Special Options * Check special options for Pressure ranges not starting at “0” psi ¹ Inlet valves...

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QPV1-7

1 = SINGLE SENSOR 2 = TWO SENSOR M = MANIFOLD MOUNT P = PANEL MOUNT D = DIN RAIL MOUNT INLET VALVE ORIFICE SIZE ¹ MOUNTING METHODS MONITOR SIGNAL MAXIMUM CALIBRATED RANGE EXAMPLES 100 = 0-100 PSI 001 = 0-1 PSI N20= atm-20 in Hg Vacuum * Pressure ranges not starting at “0” psig are available. Consult factory for ordering information. L = BLEED ORIFICE BLANK = NO ORIFICE FACTORY DETERMINED (Depends on the application flow & pressure specs) S17 = 0-5VDC COMMAND * Consult Factory for More Special Options REQUIRED FOR ALL MPV VALVES Factory determined based on the specifications of the application...

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QPV1-8

QPV DIMENSIONS DIMENSIONS ARE FOR REFERENCE USE ONLY. DIMENSIONS ARE IN INCHES (MILLIMETERS) BRQB30105E * PROPORTION-AIR * LET’S TALK 317-335-2602 BRQPV-MPV0305E * PROPORTION-AIR * LET’S TALK 317-335-2602

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QPV1-9

MPV DIMENSIONS DIMENSIONS ARE FOR REFERENCE USE ONLY. DIMENSIONS ARE IN INCHES (MILLIMETERS) LET’S TALK 317-335-2602 * PROPORTION-AIR * BRQB30105E LET’S TALK 317-335-2602 * PROPORTION-AIR * BRQPV-MPV0305E

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QPV1-10

QPV OR MPV TYPICAL APPLICATIONS LEAK TESTING (METHOD 1) Controller DS - Series Pressure Transducer Part Under Test Media Supply A Proportion-Air control valve can precisely control pressure to leak test parts. Once the test part is pressurized by the QPV1, the controller closes the shutoff valve. The DS-Series pressure transducer senses pressure in the part under test. Leak decay is recorded by the controller. Once the test is completed, the controller opens the shutoff valve and pressure is relieved through the QPV1. LEAK TESTING (METHOD 2) Controller Article under Test Flow Transducer Pressure...

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QPV1-11

In this application a QP E tro-pneumatic control valve is c ontrolling pressure of air over V1 lec flux, thus controlling the amount of flux whic h being dispensed. Why a QPV1? B ecause this is a low flow, low pressure applic ation that c an be maintained using the QP V1. HIGH RESOLUTION FORCE CONTROL USING AIR-PEL CYLINDERS Controller PLC, PID, Potentiometer, etc Manifold mount MPV1 Air Supply Air-Pel Cylinders Part Under Test In this application, 7- MPV1's mounted on a SBM-7 sub-base manifold are controlling the force on spring loaded Air-Pel cylinders to test the breaking point of small automotive...

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QPV1-12

MPV’s Sub-based Manifold

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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.