Parker Pneumatic Proportional Control Valve For Gas Oil D1VW008CNJW91

Product Description

Proportional valve, the full name is electro-hydraulic proportional valve, is a kind of hydraulic valve that converts the input electrical signal into force or displacement proportionally, so as to continuously control the pressure, flow and other parameters.

The proportional valve is composed of DC proportional electromagnet and hydraulic valve. The hydraulic valve part is little different from the general hydraulic valve, and the DC proportional electromagnet is different from the electromagnet used in the general solenoid valve, and the displacement output and suction output can be obtained proportional to the given current by using the proportional electromagnet. Proportional valve according to its control parameters can be divided into proportional pressure valve, proportional flow valve, proportional direction valve three categories.

The Difference Between Servo Valve and Proportional Valve

The difference between the servo valve and the proportional valve is not strictly stipulated, because the performance of the proportional valve is getting better and better, and it is gradually close to the servo valve, so the proportional servo valve has appeared in recent years.

The difference between proportional valve and servo valve is mainly reflected in the following points:

1. Different driving devices. The driving device of proportional valve is proportional electromagnet; The driving device of the servo valve is a force motor or a torque motor;

2. Different performance parameters. The characteristics of hysteresis, middle dead zone, bandwidth, filtration accuracy and so on are different, so the application occasions are different, servo valve and servo proportional valve are mainly used in closed-loop control system, proportional valves of other structures are mainly used in open loop control system and closed-loop speed control system;

2.1 There is no dead zone in the middle of the servo valve, and there is a dead zone in the proportional valve;

2.2 The frequency response (response frequency) of the servo valve is higher, which can be as high as 200Hz or so, and the proportional valve is generally tens of Hz;

2.3 The servo valve has higher requirements for hydraulic oil, which needs to be filtered, otherwise it is easy to block, and the proportional valve has lower requirements;

3. Spool structure and processing accuracy are different. Proportional valve adopts spool + body structure, and the body doubles as a valve sleeve. The servo valve and servo proportional valve adopt the structure of spool + valve sleeve.

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.