What is Proportional Valves
Proportional valves are advanced control valves used in fluid power systems. They are designed to provide a continuous and proportional control of fluid flow, pressure, or other parameters.Unlike traditional on - off valves, proportional valves can modulate the output in direct proportion to the input signal. This is achieved through the use of an electro - mechanical actuator, such as a solenoid, which controls the position of a valve element.
Hangzhou Pinxin Hydraulic Technology Co., Ltd. is a professional engaged in the trade of hydraulic components, hydraulic system design and hydraulic transmission field of excellent enterprises.
Our company specializes in wholesale and retail of Rexroth brand hydraulic parts, including A8VO series, A6VM series, A6VE series, A4VG series, A10VSO series, A11VLO series, A2FE series, A2FM series, etc.
Why Choose Us
Excellent Team
The company now has a professional hydraulic system design team, hydraulic product maintenance and after-sales team and domestic and foreign hydraulic product sales and trade team.
Solution
Our team of engineers are familiar with the performance indicators of various major brands of hydraulic components and can choose the best solution for customers.
After-Sale Service
The product provides one-year warranty service, provides remote video technical guidance throughout the day on weekdays, and provides free parts maintenance under the condition of normal use of grease and clean during the warranty period.
Specification
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Specifications – Proportional Valves |
||||
|
Maximum Material Flow Capacity (lbs per hour) |
770 |
1200 |
770 |
1200 |
|
Pipe Size |
1.5 |
2 |
1.5 |
2 |
|
Compressed Air Pressure – PSI |
40 |
40 |
40 |
40 |
|
Length (in) |
6 |
6 |
6 |
6 |
|
Width (in) |
10 |
10 |
10 |
10 |
|
Height (in) |
9 |
9 |
9 |
9 |
|
Weight (lbs) |
8 |
8 |
10 |
10 |
Benefits of Proportional Valves
Energy optimization
One of the main advantages of a proportional valve is a significant increase in energy efficiency. As a matter of fact, these systems need less manual operations to adjust flow and pressure rates, resulting not just in an economic benefit, but also in a sustainable optimizationof energy consumption.
Versatility
Proportional valves can adapt to many different contexts and applications - from industrial automation to Food&Beverage and delicate medical systems. They can also manage a variety of fluids and pressure rates, ensuring excellent performances in every field they may be applied to.
Enhanced safety
Accuracy and constant monitoring mean improved safety. In fact, these systems prevent sudden fluctuations that can lead to operational shifts and malfunctions.
4 Things to Consider When Applying Proportional Valves
Applying dither to a valve reduces actuator friction and reduces hysteresis. A good rule of thumb is to use 70 -250 Hz dither frequency on all SP, ZL, and PV valves (flow and directional control valves), and 200-300 Hz dither frequency on TS Valves (proportional pressure control valves). Otherwise, at lower frequencies the actuator will follow the dither signal and the valve output will appear unstable.
When applying 4-way valves in cylinder circuits use port 2 for the cylinder's blind or cylinder end connection. There will be lower overall pressure drop since the magnified return flow from the cylinder will not have to go through the center of the spool.
Valve position is directly related to the applied current, not the applied voltage. This is because coil resistance is not constant, but rather it increases with temperature. Therefore, you should limit I-Max current to 1.0 amp on 08 size and 1.2 amps on 10 size valves in high ambient temperature/continuous duty applications. In high temp conditions you may run out of votage and will not be able to use the full resolution of the catalog page performance graph. Remember to size the valve with these current limits in mind.
Match the valve to the job. Over sizing a metering valve usually gives extremely poor resolution, as only a small portion of the metering curve is useful. In other words, if the valve is over-sized, it will have a negative effect on metering capabilities of the valve. Everyone likes to keep the number of parts in their systems and inventories to a minimum, but trying to apply the same valve across several machine platforms, especially at significantly different flowrates, should be avoided.
Shipping and Delivery Information
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Packaging : |
Wooden box or carton |
|
Delivery Time: |
10-25 Days |
|
Payment Methods |
T/T (Telegraphic Transfer) and L/C (Letter of Credit) |
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Shipping |
It can be delivered by truck, train, sea, air. |
FAQ
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Proportional Solenoid Valve, Proportional Solenoid, Proportional Control Solenoid Valve
