Question 1

Pneumatic Application

Accepted Answer

Pneumatic Application is widely used in the automation control industry.
KaoLu's High Precision Proportional Pressure Regulator can accurately control air.

1. It can be control vacuum, from 0~-101KPA.

2. In micro-pressure and low-pressure control, the range of 0-2bar is 0.00145psi and the range of 0~10bar is 0.0073psi.

3. Medium pressure and high pressure control: 0~30 bar to 0~70BAR

There are three options for operation and communication: 0-10VDC (voltage), 4-20mA (current) and RS485 ModBus.

It often used in laser cutting machine, rubber and plastic equipment...,etc.

Filter: High Pressure Filter (1/4~1'') 0.5~35bar
Air Treatment Unit: Filter Regulator Lubricator, Water Filter, Pressure Regulator, Fuel Injector
Solenoid Valve: Solenoid Valve (2/2, 3/2, 5/2, 5/3, ISO) ,High-Flow Pilot On/Off Valve, Y-type Steam Valve, Vacuum Solenoid Valve, Large Flow Solenoid Valve
High Precision Pressure Regulating Valve: Control Air
Air Spring: ContiTech
Pressure Control Unit: Flow Booster, Proportional Pressure Regulator (0~80bar)
Flow Control Unit: Proportional Flow Control Valve (Air: 0~5000LPM@10bar / Water: 0-90LPM@10bar), Flow Meter
Vacuum Control Unit: Vacuum Solenoid Valve, Vacuum Generator, Vacuum Filter
Pinch Valve: Proportional Pinch Valve, Cylinder Pinch Valve, Electronic Pinch Valve
Other Component: Fittings, Check Valve....other fittings or valves

More information about KaoLu's products, please refer to the link!

Question 2

What Is A Pinch Valve?

Accepted Answer

A pinch valve is a type of fluid control valve. It applies a pinching force to the outer surface of flexible tubing. While pinching it collapses and seals the tubing to control fluid flow or pressure.
The main body of a pinch valve is not in direct contact with the gas or the liquid, and only the inside of the tube will have direct contact with the liquid and gas fluid flowing through. Therefore, the pinch valve is not in direct contact with the fluid.

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Question 3

Why Use Pinch Valves?

Accepted Answer

Industry leaders looking for a low-maintenance and more cost-effective solutions for controlling liquids, gases, slurries and powders (incl. corrosive media) in a pipeline are turning to pinch valves over traditional valves (diaphragm valves, ball valves, butterfly valves, needle valves, etc.) Unlike traditional valves, pinch valves feature a straight-through flow, very little pressure drop over the valve, and full shut-off of media in the tube, making it the most practical and efficient solution for various ON/OFF flow control applications.

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Question 4

Why Use Proportional Pinch Valves?

Accepted Answer

See below for pressure curves representing 2-way (ON/OFF) control versus proportional control. If you need the option to vary or hold flow or pressure in your system a proportional valve allows you flexibility to adjust the valve opening from full open to closed or anywhere in between.

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Question 5

Advantages of Pinch Valves

Accepted Answer

Compact, lightweight design
Easy cleaning (just throw away the tubing)
Simple operation
Eliminates media contamination
Linear flow
Quick tubing change-out
High performance and reliability
Easy valve exchange
Maximize productivity
Reduced valve costs
Valve body not affected by corrosive fluids
Requires very low maintenance

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Question 6

Pinch Valve Markets

Accepted Answer

Biotechnology
harmaceuticals
Medical devices
Process equipment
Food and beverage
Chromatography - analyzers
Chemical processing equipment
medical equipment
lab analyzers
food manufacturing equipment

Across a variety of markets and industries, maintaining the integrity of the fluid or media passing through non-contact technology is a driving factor in choosing pinch valves. As technologies evolve, we see more and more applications that require increasingly demanding performances that are just not achievable with conventional pneumatic or solenoid pinch valves; there is a demand for proportional controls in order to regulate and monitor processes with greater accuracy, speed, and delivery. Regulation of the fluid or media is necessary and can be limited to several factors, including flow, net volume, temperature, positive or negative pressure, and viscosity.

Filtration and dispensing applications benefit immensely from proportional pinch valves. Filtration is a method used to separate particles from a fluid. Filters require precise regulation of flow, along with monitoring positive and negative pressure at the membrane as the process occurs. Material build-up as the filter does its job means that increased flow or pressure may be needed in order to maximize the filters usefullness to a maximum point.

Directly replace:
Resolution Air ( MPPV series)
IMI Norgren ( PE 900 series)

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Question 7

Gas Blending

Accepted Answer

Gas blending is a critical process in many semiconductor or industrial application, such as when one needs to regulate the percentage composition of nitrogen and helium gas in a tank. Here we show how to set up a high precision gas blending schemes.

Functions of Proportional Pressure Regulator
Our QKL electronic proportional pressure regulators ( I/P converter) help with gas blending applications that need repeatable pressure control. By controlling the pressure of each specific gas to a tank through a pre-defined orifice, a tailored blend can be achieved. Here two QKL proportional pressure regulator ( I/P converter) are controlling the pressure of two types of media in a gas blending application.

Adding an extra proportional flow control valve
Our proportional pressure regulator can also work in tandem (upstream of) with the proportional flow control valve to stabilise the inlet air pressure, and thus stabilise the flow rate after the flow control valve. Proportional flow control valve acts as variable orifice, whereas proportional pressure regulator regulates and stabilizes the upstream air pressure.

Benefits
Using proportional pressure regulator to control the flow rate has several benefit: high speed flow rate change, high accuracy, and high resolution. Using our high resolution QKL proportional pressure regulator can achieve turndown ratio up to 1: 500.

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Question 8

Glass Bottle Blow Molding

Accepted Answer

This sketch shows a QKL Electronic proportional pressure regulator ( I/P converter) piloting a volume booster in a glass bottle blow molding application. Most glass bottles are manufactured via the "press & blow" method. In this method the pressure regulator is used at the final stage to fill air into the molten glass in a mold.

Our proportional pressure regulator is best suited for this application due to its high flow rate, fast response time, and high accuracy. Our regulators are capable of modulating from 2 bar to 65 bar with accuracy of 0.25% FS. (higher pressure range can be customised upon request)

QKL electronic pressure regulator can directly replace:
Proportion Air ( QB3H, QBS, GX, QBX, QPV, QB2 ), Festo ( VPPM, VPPL, VPPE, VEAA, VEAB, VEMD ), SMC (ITV1000, ITV2000, ITV3000), Clippard (Cordis), and ASCO (Sentronic)

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Question 9

Airbag Lifting

Accepted Answer

QKL electronic proportional pressure regulator( I/P converter) used to inflate air bags to raise a table. Pneumatically operated tables and lifts require air bag pressure control that is accurate and repeatable. These tables and lifts require less maintenance than conventional hydraulic lift tables, since there is no fluid to leak and contaminate processed goods.

Our proportional pressure regulator is best suited for this application due to its high flow rate, fast response time, and high accuracy. Our regulators are capable of modulating from 2 bar to 65 bar with accuracy of 0.25% FS. ( higher pressure range can be customised upon request)

Our electronic pressure regulator can directly replace:
Proportion Air ( QB3H, QBS, GX, QBX, QPV, QB2 ), Festo ( VPPM, VPPL, VPPE, VEAA, VEAB, VEMD ), SMC (ITV1000, ITV2000, ITV3000), Clippard (Cordis), and ASCO (Sentronic)

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Question 10

Welding Application

Accepted Answer

In this sketch, QKL electronic proportional pressure regulator ( I/P converter) is controlling air pressure over oil to control the pressure of the oil to the cylinder. An orifice is used on the cylinder exhaust to soften the weld tip and help control overall speed during the process.

Our proportional pressure regulator is best suited for this application due to its high flow rate, fast response time, and high accuracy. Our regulators are capable of modulating from 2 bar to 65 bar with accuracy of 0.25% FS. (higher pressure range can be customised upon request)

QKL electronic pressure regulator can directly replace:
Proportion Air ( QB3H, QBS, GX, QBX, QPV, QB2 ), Festo ( VPPM, VPPL, VPPE, VEAA, VEAB, VEMD ), SMC (ITV1000, ITV2000, ITV3000), Clippard (Cordis), and ASCO (Sentronic)

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Question 11

AODD Pump Speed Control

Accepted Answer

Air-Operated Double-Diaphragm (AODD) pump is used in many indsutrial environment to transfer liquids. The speed of pump is controlled by pilot air pressure. QKL can be used in combination with AODD to control the speed of the pump.

Our proportional pressure regulator is best suited for this application due to its high flow rate, fast response time, and high accuracy. Our regulators are capable of modulating from 2 bar to 65 bar with accuracy of 0.25% FS. (higher pressure range can be customised upon request)

QKL electronic pressure regulator can directly replace:
Proportion Air ( QB3H, QBS, GX, QBX, QPV, QB2 ), Festo ( VPPM, VPPL, VPPE, VEAA, VEAB, VEMD ), SMC (ITV1000, ITV2000, ITV3000), Clippard (Cordis), and ASCO (Sentronic)

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Question 12

Steam Control

Accepted Answer

QKL electronic proportional pressure regulator ( I/P converter) assembly takes feedback from a downstream pressure transducer and closes the loop around pressure for tighter closed-loop control. Since temperature is directly related to the pressure of saturated steam, this assembly will provide tighter control of temperature.

Our proportional pressure regulator is best suited for this application due to its high flow rate, fast response time, and high accuracy. Our regulators are capable of modulating from 2 bar to 65 bar with accuracy of 0.25% FS. (higher pressure range can be customised upon request)

QKL electronic pressure regulator can directly replace:
Proportion Air ( QB3H, QBS, GX, QBX, QPV, QB2 ), Festo ( VPPM, VPPL, VPPE, VEAA, VEAB, VEMD ), SMC (ITV1000, ITV2000, ITV3000), Clippard (Cordis), and ASCO (Sentronic)

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Question 13

Catheter Blow Molding

Accepted Answer

QKL electronic proportional pressure regulator ( I/P converter) is ideal for catheter blow molding because of its high repeatability and accuracy. QKL is being used to control the amount of pressure applied to shape catheter in a mold. QKL proportional pressure regulator is widely used in cathether production environment.

Our proportional pressure regulator is best suited for this application due to its high flow rate, fast response time, and high accuracy. Our regulators are capable of modulating from 2 bar to 65 bar with accuracy of 0.25% FS. (higher pressure range can be customised upon request)

QKL electronic pressure regulator can directly replace:
Proportion Air ( QB3H, QBS, GX, QBX, QPV, QB2 ), Festo ( VPPM, VPPL, VPPE, VEAA, VEAB, VEMD ), SMC (ITV1000, ITV2000, ITV3000), Clippard (Cordis), and ASCO (Sentronic)

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Question 14

Burst Pressure Testing

Accepted Answer

QKL electronic proportional pressure regulator ( I/P converter) is being used to control the pressure for a catheter burst testing application. Test results are being provided to the controller via the GX analog monitor feedback signal. The analog monitor output signal can be used to capture the pressure when the catheter bursts. Furthermore, QKL regulator is often used by our customers for calibrating sensor application.

Our proportional pressure regulator is best suited for this application due to its high flow rate, fast response time, and high accuracy. Our regulators are capable of modulating from 2 bar to 65 bar with accuracy of 0.25% FS. (higher pressure range can be customised upon request)

QKL electronic pressure regulator can directly replace:
Proportion Air ( QB3H, QBS, GX, QBX, QPV, QB2 ), Festo ( VPPM, VPPL, VPPE, VEAA, VEAB, VEMD ), SMC (ITV1000, ITV2000, ITV3000), Clippard (Cordis), and ASCO (Sentronic)

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Question 15

Gate Switch Position Control

Accepted Answer

QKL electronic proportional pressure regulator ( I/P converter) controlling the position of a process control valve. QKL is calibrated 5 - 15 psi. QKL electronic proportional pressure regulator ( I/P converter) all closed-loop. Supply pressure fluctuations don’t affect downstream pressure. There is a monitor output signal from the on-board pressure sensor available for data acquisition.

Our proportional pressure regulator is best suited for this application due to its high flow rate, fast response time, and high accuracy. Our regulators are capable of modulating from 2 bar to 65 bar with accuracy of 0.25% FS. (higher pressure range can be customised upon request)

QKL electronic pressure regulator can directly replace:
Proportion Air ( QB3H, QBS, GX, QBX, QPV, QB2 ), Festo ( VPPM, VPPL, VPPE, VEAA, VEAB, VEMD ), SMC (ITV1000, ITV2000, ITV3000), Clippard (Cordis), and ASCO (Sentronic)

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Question 16

Leak Test

Accepted Answer

QKL electronic proportional pressure regulator ( I/P converter) is controlling pressure to leak test an ink jet cartridge. Once the test part is pressurized by our device, the controller closes a shutoff valve between the regulator and the test part. The pressure transducer then senses pressure in the part under test and leak decay is recorded by the controller. Once the test is completed, the controller opens the shutoff valve and pressure is relieved through the QKL electronic proportional pressure regulator ( I/P converter). QKL regulator is widely used for leak testing in different industries. Please consult for more information.

Our proportional pressure regulator is best suited for this application due to its high flow rate, fast response time, and high accuracy. Our regulators are capable of modulating from 2 bar to 65 bar with accuracy of 0.25% FS. (higher pressure range can be customised upon request)

QKL electronic pressure regulator can directly replace:
Proportion Air ( QB3H, QBS, GX, QBX, QPV, QB2 ), Festo ( VPPM, VPPL, VPPE, VEAA, VEAB, VEMD ), SMC (ITV1000, ITV2000, ITV3000), Clippard (Cordis), and ASCO (Sentronic)

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Question 17

Tire Uniformity Test

Accepted Answer

A tire dynamic balancing machine requires that the tire be filled rapidly to the test pressure and this pressure must be stable during the dynamic balancing test. QKL electronic proportional pressure regulator ( I/P converter) controls pressure while the tire is spinning clockwise or counterclockwise. The stable pressure that is provided to the tire is used to set the bead of the tire on the test rim and then to set test pressure. QKL regulator is used in many applications in tire industry. Please consult for further information.

Our proportional pressure regulator is best suited for this application due to its high flow rate, fast response time, and high accuracy. Our regulators are capable of modulating from 2 bar to 65 bar with accuracy of 0.25% FS. (higher pressure range can be customised upon request). Different parameters can be customised according to customers equipment requirements.

QKL electronic pressure regulator can directly replace:
Proportion Air ( QB3H, QBS, GX, QBX, QPV, QB2 ), Festo ( VPPM, VPPL, VPPE, VEAA, VEAB, VEMD ), SMC (ITV1000, ITV2000, ITV3000), Clippard (Cordis), and ASCO (Sentronic)

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Question 18

Flight Simulator Seat Forces

Accepted Answer

Flight simulators must include the simulation of the flight suit, belt and air bladders like those used on the actual aircraft. Our QKL electronic proportional pressure regulator ( I/P converter) are able to assist in simulating real time flight experience suitable for training pilots. We have been providing pneumatic solutions for different military and aerospace applications, please consult for our customised solutions.

Our proportional pressure regulator is best suited for this application due to its high flow rate, fast response time, and high accuracy. Our regulators are capable of modulating from 2 bar to 65 bar with accuracy of 0.25% FS. (higher pressure range can be customised upon request)

QKL electronic pressure regulator can directly replace:
Proportion Air ( QB3H, QBS, GX, QBX, QPV, QB2 ), Festo ( VPPM, VPPL, VPPE, VEAA, VEAB, VEMD ), SMC (ITV1000, ITV2000, ITV3000), Clippard (Cordis), and ASCO (Sentronic)

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Question 19

Fuel Pump Test

Accepted Answer

A fuel pump back-pressure test stand can be built with QKL electronic proportional pressure regulator ( I/P converter) components to handle the testing of a variety of fuel pump sizes. QKL combines with a back-pressure regulator is controlling upstream pressure in a fuel pump test. A flow monitor is downstream measuring flow and sending a signal to the controls, which is sending a command signal to the QKL electronic proportional pressure regulator ( I/P converter) to either increase or decrease the pressure in the fuel to meet the specific requirements of the test.

Our proportional pressure regulator is best suited for this application due to its high flow rate, fast response time, and high accuracy. Our regulators are capable of modulating from 2 bar to 65 bar with accuracy of 0.25% FS. (higher pressure range can be customised upon request)

QKL electronic pressure regulator can directly replace:
Proportion Air ( QB3H, QBS, GX, QBX, QPV, QB2 ), Festo ( VPPM, VPPL, VPPE, VEAA, VEAB, VEMD ), SMC (ITV1000, ITV2000, ITV3000), Clippard (Cordis), and ASCO (Sentronic)

URL:
https://www.genndih.com/proportional-valve.htm

Question 20

Spot Welding Application

Accepted Answer

Liquid product can be dispensed by controlling head pressure in a closed pressure vessel.
Whether it is a liquid, solder paste, or flux dispensing application, stable and repeatable pressure control will provide the most consistent dispensing results. Here QKL I/P converter is being used to control precisely the pressure inside the vessel.

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