Proportional pressure control valves | Nayagi Industrial Technologies

1. PROPORTION-AIRPRESSURE CONTROL VALVES GLOBAL LEADER IN ELECTRO-PNEUMATIC VALVES

2. WHY CHOOSE PROPORTION-AIR ADVANCED PNEUMATIC CONTROL TECHNOLOGY  MANYAPPLICATIONS,ONEPURPOSE:CONTROL  SUPERIORSPECS,HAND-BUILT,FACTORY-CALIBRATED  QUALITYDEVICESMEANLONGERLIFECYCLES&VALUE • Many manufacturing processes demand the need for closed-loop pneumatic pressure control. Control loops are a chain of events or processes that always lead back to the point of origin. The feedback loop allows the system to achievethegreatestlevelofaccuracy. • Since Proportion-Air is committed to providing the customer with exceptional products and service to meet this demand, all Proportion-Air electro-pneumatic control valves use closed-loopcontroltechnology. • Single loop control valves have a built-in pressure transducer that constantly monitors control pressure. When an electronic command signal is given, the “commanded pressure” is compared to the actual pressure and the inlet or exhaust solenoid valves are actuated until desired pressure is achieved. Dual loop control valves expand on the single loop operation by combining an additional feedback input (in conjunction with the internal transducer) from another external sensing device. The ability of the dual loop to accept electrical feedback from an external sensor allows precise control of conditions such as pressure of large volume systems, vacuum and flow. Proportion-Air carries a selection • of regulators and sensors to interface with dual loop mode valves to meeta variety of applications.

3. Any Flow or Any media DUAL-LOOP TECHNOLOGY Our dual loop technology provides you the capability to control virtually any media at any flow rate and any pressure without sacrificing accuracy and repeatability. With a properly configured dual loop unit you can collect feedback from a vacuum, force, flowor pressure transducer. PID loops no longer need to be tuned in your controller. Dual looptechnologypairedwithouruniqueanalogcircuit makesproportionalcontroleasy. Ramping pressure, vacuum, force, or flow up and/or down is simple. A dual loop control valve can track the ramped signal from the PLC or computer and achieve the control settingrequired.

4. Reason for Dual-Loop Technology? 1. Accuracy ; 2. Repeatability ; 3. High Flow & 4. Data Acquisition Accuracy: The downstream pressure transducer senses pressure on the work port of the pressure regulator and allows the control valve to compensate for inaccuracy brought about by the mechanical properties oftheregulator. Repeatability: High flow capability, hydraulic or pneumatic media capability, more simple- to-use control and extremely repeatable: the same conditions with the same command signal from the same direction can have repeatability as high as 0.02% of full-scale calibration. High flow:Abletomaintainhighaccuracyeveninhighflowapplications. Data acquisition: Just like our other electronic pressure regulators, all dual loop devices have analog output that comes from the controlling transducer. The dual loop feedback is provided the downstream transducer.

5. PRESSURE CONTROL ELECTRO-PNEUMATIC CLOSED-LOOP PRESSURE CONTROL VALVES QB1S | QB2S The QBS is outfitted with a stainless steel sensor to handle higher pressure ranges. Common QBS Applications: Instrument calibration, plastics, and leak and other parts testing. MM1 | MM2 The MM is a version of the QBX unit without a housing. Common MM Applications: Industrial cleaning, stress testing, braking/throttle control, calibration, pressure and leak testing, spraying, blending, injection molding, and other applications where space is at a premium.

6. QB3H Common QB3H Applications: Laser cutting, inflation monitoring, mold ejection, and numerous tire manufacturing processes. X1 | GX2 Common GX Applications: Burst testing, extrusion, blow molding, and high pressureinstrument calibration. QPV1 | QPV2 Common QPV Applications: Welding gas control, Leak testing, tire manufacturing, product coating, dispensing, and altitude simulation.