Fujian zhichuan mechanical equipment Co., Ltd. |
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Parker Proportional Valve Features
The input signal of Parker proportional valve increases, the
solenoid pilot valve 1 for gas supply is reversed, and the solenoid
pilot valve 7 for exhaust is in the reset state, then the gas
supply pressure enters the pilot chamber 5 from the SUP port
through valve 1, the pressure of the pilot chamber rises, the gas
pressure acts on the upper part of the diaphragm 2, then the gas
supply valve core 4 connected with the diaphragm 2 is opened, and
the exhaust valve core 3 is closed, and the output pressure is
generated. This output pressure is fed back to control loop 8
through pressure sensor 6. Here, a quick comparison with the target
value is corrected until the output pressure is proportional to the
input signal, thus obtaining a change in the output pressure
proportional to the change in the input signal. Because there is no
nozzle baffle mechanism, the valve is not sensitive to impurities
and has high reliability. peculiarity
1) It can realize the endless adjustment of pressure and speed, and
avoid the impact phenomenon when the switching valve is reversed.
2) Can achieve remote control and program control.
3) Compared with intermittent control, the system is simplified and
the components are greatly reduced.
4) Compared with the hydraulic proportional valve, small size,
light weight, simple structure, low cost, but the response speed is
much slower than the hydraulic system, and it is more sensitive to
load changes.
5) Small power, less heat, low noise.
6) There will be no fire, and the effect of temperature change is
small.
Proportional valves include thermal compensation proportional valves, non-thermal compensation proportional valves, OEM systems - proportional. Model EPC is a DC driven normally closed valve that includes an elastic seat to provide airtight closure. Wide flow coefficient (Cv) can be used for flow or pressure control.
Model EPC offers integrated compression fittings for in-line installation or as a manifold mounted version to allow design and user flexibility, also available in OEM-scale configurations: proportional control valves are designed for closed circulation or pressure control systems. When connected to flow or pressure sensors and proportional electronic controllers, Parker EPC valves provide stable and accurate control of gas flow rate or pressure. To increase design and user flexibility, it is also possible to OEM the volume and number of devices.
Response Time | 0.5 seconds |
Operating Temperature | 15°C |
Pressure | 25 |
Control Signal | 25 mA |
Material | Stainless Steel |
Certifications | CE, RoHS |
Voltage | 24V DC |
Temperature Of Media | Medium Temperature |
Accuracy | ±2% |
FAQ
Q1: Wonder if you accept small orders?
A1: Do not worry. Feel free to contact us .in order to get more
orders and give our clients more convener ,we accept small order.
Q2: Can you send products to my country?
A2: Sure, we can. If you do not have your own ship forwarder, we
can help you.
Q3: What's your payment terms ?
A3: By T/T,LC AT SIGHT,100% full payment.
Q4: How long is your production lead time?
A4:It depends on product and order qty. Normally, it takes us 15
days for an order with MOQ qty.
Q5: When can I get the quotation ?
A5: We usually quote you within 24 hours after we get your inquiry.
If you are very urgent to get the quotation.Please call us or tell
us in your mail, so that we could regard your inquiry priority.