Product Description

With the development of hydraulic transmission and hydraulic servo systems, some hydraulic systems that require continuous control of pressure, flow and direction without high control accuracy have appeared in production practice. Since the ordinary hydraulic components can not be full enough to have certain servo requirements, and the use of electro-hydraulic servo valves is too wasteful because the control accuracy requirements are not high, a proportional control valve between the ordinary hydraulic components (switch control) and the servo valve (continuous control) has been produced in recent years.

Electro-hydraulic proportional control valve (referred to as proportional valve) is a kind of cheap electro-hydraulic control valve with good anti-pollution performance. The development of proportional valve experiences two ways, one is to replace the manual adjustment input mechanism of the traditional hydraulic valve with proportional electromagnet, on the basis of the traditional hydraulic valve: the development of a variety of proportional direction, pressure and flow valves; The second is that some original electro-hydraulic servo valve manufacturers developed after reducing the design and manufacturing accuracy on the basis of electro-hydraulic servo valves.

Working Principle

The command signal is amplified by the proportional amplifier, and the proportional output current to the proportional solenoid of the proportional valve, the proportional solenoid output force and the proportional movement of the valve core position, you can proportional control the flow of the liquid flow and change the direction of the liquid flow, so as to achieve the position or speed control of the actuator. In some applications requiring high position or speed accuracy, the closed-loop control system can also be formed by detecting the displacement or speed of the actuator.

Proportional valve is composed of DC proportional solenoid and hydraulic valve two parts, proportional valve to achieve continuous control of the core is the use of proportional solenoid, proportional solenoid variety, but the working principle is basically the same, they are developed according to the proportional valve control needs.

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.

Fujian Zhichuan Mechanical Equipment Co., Ltd. is a company specializing in the import of electronic hydraulic products trade and sales.Our aim is to provide our customers with high quality imported machinery products andexcellent after-sales service. Our main business covers the fields of construction machinery,photovoltaic equipment, vacuum equipment, mining equipment and metallurgical and automo-tive equipment industries, providing various types of power equipment, electromechanicalproducts, assemblies and components. We sell hydraulic components of well-known brands athome and abroad and sell and design hydraulic cylinders, hydraulic complete systems, customhydraulic systems and renovation projects.

Our products are widely used in major domestic petroleum machinery plants, oil fields. mines, smelters, engineering machinery plants, shipbuilding plants, heavy vehicle manufactur-ing plants and other enterprises and research institutes. Meanwhile, in the field of mining equipment, we have rich experience and advantages and can provide customers with mining equip-ment, mining drilling rigs and accessories, open pit mining equipment, crushing equipment,grinding equipment, ore dressing equipment feeding equipment, conveying equipment, screen-ing equipment lifting storage and transportation equipment, complete sets of safety protectionand monitoring equipment for mining machinery, etc.

In the field of construction machinery, our products such as crawler excavation machinery. wheeled excavation machinery, loading machinery, earth-moving machinery, lifting machinery,industrial vehicles, compaction machinery, heavy vehicles, amphibious vehicles and somehydraulic packages for special vehicles are also widely recognized by our customers. in addi-tion, we also provide tunnel construction sets, pneumatic tools, military construction machinery and other products.

As a professional imported machinery products company, we focus on product quality andservice, and have gathered a group of highly qualified technicians and maintenance personnelwho are able to provide professional technical support and maintenance services to ourcustomers. We implement network sales of stock products through cooperation with distributorsaround the world, and it is our development direction and goal to establish a mutual trust, stableand long-lasting relationship. At the same time, we pursue the principle of following the rulesand cooperating with each other in good faith.