Dong Guan V finder electronic technology co;ltd is a professional needle detector .Â
  metal detector and related industry equipment manufacture .Â
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We produce and customized various kinds of hand held needle detector.table needle detector . Conveyor belt needle detector . Conveyor belt metal detector and so on relatedÂ
Equipment .Â
 needle metal detector
needle detector
garment needle detectorÂ
knitting needle detector
conveyor needle detectorÂ
broken needle detectorÂ
garment needle detectorÂ
belt needle detectorÂ
conveyor needle detectorÂ
needle detector machineÂ
industry needle detectorÂ
belt needle detectorÂ
sewing needle detector
table needle detectorÂ
Â
Â
Â
New Function :
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Top advanced CPU system inner control. Can process the detect signal aromatically.Then transfer the signal to show on the Touch screen display .CPU according to customer requirement alarm automatically.Â
Full touch screen display .Clear and accuracy show the detect action and detailsÂ
Test result print function .Takes of Epson print . The data can keep for a long time.Â
Takes of High feature strong magnet make sure the detect result stable and accuracy .
Â
General SpecificationsÂ
 Equipped with Vfinder  microcomputer chips from USA for digital signal management, it can analyze the different channel signals and improved the detection reliability.
Special inducing design in the detection field, the sensitivity and anti-disturbance ability are greatly improved, and it is not disturbed by the environment.
 Unique inducting design of balanced magnetic field to meet the needs of different clients, especially for the detection of garment accessory.
 With digital display in Chinese, touching screen of films. It is convenient for operation and management.
 The perfect combination of powerful functions and simple operation is also a friendly philosophy of design.
 Equipped with the intellectual location displaying system, which can indicate the location of the needle.
 The intellectual counter system can calculate the qualified and unqualified objects amount.
 Equipped with safe lock only, which can lock the sensitivity, so that it is convenient for management.
 Digital sensitivity regulation, the induction strength can show the disturbance and Iron content.
 Equipped with light control automatic alarm and automatic power off function.
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Short  parameter :
MODEL | VFG-700kt | ||||
Detection method | Magnetic induction.digital process | ||||
Detection ability | ≥FeΦ0.8 | ≥FeΦ0.8 | ≥FeΦ1.0 | ≥FeΦ1.2 | ≥FeΦ1.5 |
Detection Height | 100mm | 120mm | 150mm | 200mm | 250mm |
Detection width |  Net width 600mm-non-standard sizes(custom) | ||||
Detection adjustment | Touch screen  adjust the level 1-12 | ||||
Alarm method |  Sound/light alarm and return, then restarts again | ||||
Power supply | Ac220V 50-60Hz | ||||
Pated output | 140W | ||||
Machine Size | L1820mm×W1050mm×H900mm | ||||
Weight | 280KG |
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Use Range :
Garment .Textile.underwear .towel. Sanitary and so on industry .Â
Â
Â
Packaging & Shipping
Â
we takes of ploywood case that suitable for export
Shipment according to customer can by air by sea or by railway station
Â
Our Services
our sales will reply you within 12 hours after receive your iquiry
our after sales department can give your full english after sales service
Our enigneer can go overseas to for big project design and guide
Â
Company Information
  we are a professional needle metal detector and conveyor belt full meal detector manufacture located in Guang Dong city of China. we accept different kinds of OEM and ODM serice
 Â
FAQ:
1. Are you manufacturer or trader?
We are manufacturer, we have own factory in Dong Guan, we have independent department for purchasing, producing, processing, testing, packing, storing , and transportation, believe our team is best team in china.
2. Do you sell the accessories for Products ?
Yes. We have Match the parts for our testing equipment. If our machines damages by fire, water flood, earthquakes, unsteady of power and other natural disasters, we are willing supply match parts with lowest price for you.
3.How about the packing for product? Is it easy damaged during transportation?
For light structure products like Gold detector. Hand held metal detector and so on we takes of strong carton box .Â
For heavy structure products like conveyor belt needle detector. Food metal detector X ray machine .Our packing is Standard Export ploy Wooden Case.Â
Every prepackage have a plastic bags cover .
4. What's your main product?
We professional in needle detector. Metal detector. X ray machine and other related electronic products and machinesÂ
5.Where is your main sales market?
Our Gold meal detectors customer all over the world.
Our hand metal detector and walk through metal detector mainly in Southeast of Asia.
South of America.Middle east. East Europe and AfricaÂ
Our needle and food metal detector mainly customers are from Australia. USA. All Europe and AsiaÂ
6.How about your after-sales policy?
Customer first is our always principle . All of our products normal warranty is 12months. We give necessary back or video guidance for daily problems. If massive products occur big quality problems. Our technical and engineer support overseas service .Â
7.Do you accept customer Logo and customized ?
we accept kinds of customized and logo of all of our products for customersÂ
Â
Dong Guan V finder electronic technology co;ltd is a professional needle detector .Â
  metal detector and related industry equipment manufacture .Â
Â
We produce and customized various kinds of hand held needle detector.table needle detector . Conveyor belt needle detector . Conveyor belt metal detector and so on relatedÂ
Equipment .Â
 needle metal detector
needle detector
garment needle detectorÂ
knitting needle detector
conveyor needle detectorÂ
broken needle detectorÂ
garment needle detectorÂ
belt needle detectorÂ
conveyor needle detectorÂ
needle detector machineÂ
industry needle detectorÂ
belt needle detectorÂ
sewing needle detector
table needle detectorÂ
Â
Â
Â
New Function :
Â
Top advanced CPU system inner control. Can process the detect signal aromatically.Then transfer the signal to show on the Touch screen display .CPU according to customer requirement alarm automatically.Â
Full touch screen display .Clear and accuracy show the detect action and detailsÂ
Test result print function .Takes of Epson print . The data can keep for a long time.Â
Takes of High feature strong magnet make sure the detect result stable and accuracy .
Â
General SpecificationsÂ
 Equipped with Vfinder  microcomputer chips from USA for digital signal management, it can analyze the different channel signals and improved the detection reliability.
Special inducing design in the detection field, the sensitivity and anti-disturbance ability are greatly improved, and it is not disturbed by the environment.
 Unique inducting design of balanced magnetic field to meet the needs of different clients, especially for the detection of garment accessory.
 With digital display in Chinese, touching screen of films. It is convenient for operation and management.
 The perfect combination of powerful functions and simple operation is also a friendly philosophy of design.
 Equipped with the intellectual location displaying system, which can indicate the location of the needle.
 The intellectual counter system can calculate the qualified and unqualified objects amount.
 Equipped with safe lock only, which can lock the sensitivity, so that it is convenient for management.
 Digital sensitivity regulation, the induction strength can show the disturbance and Iron content.
 Equipped with light control automatic alarm and automatic power off function.
Â
Â
Â
Short  parameter :
MODEL | VFG-700kt | ||||
Detection method | Magnetic induction.digital process | ||||
Detection ability | ≥FeΦ0.8 | ≥FeΦ0.8 | ≥FeΦ1.0 | ≥FeΦ1.2 | ≥FeΦ1.5 |
Detection Height | 100mm | 120mm | 150mm | 200mm | 250mm |
Detection width |  Net width 600mm-non-standard sizes(custom) | ||||
Detection adjustment | Touch screen  adjust the level 1-12 | ||||
Alarm method |  Sound/light alarm and return, then restarts again | ||||
Power supply | Ac220V 50-60Hz | ||||
Pated output | 140W | ||||
Machine Size | L1820mm×W1050mm×H900mm | ||||
Weight | 280KG |
Â
Use Range :
Garment .Textile.underwear .towel. Sanitary and so on industry .Â
Â
Â
Packaging & Shipping
Â
we takes of ploywood case that suitable for export
Shipment according to customer can by air by sea or by railway station
Â
Our Services
our sales will reply you within 12 hours after receive your iquiry
our after sales department can give your full english after sales service
Our enigneer can go overseas to for big project design and guide
Â
Company Information
  we are a professional needle metal detector and conveyor belt full meal detector manufacture located in Guang Dong city of China. we accept different kinds of OEM and ODM serice
 Â
FAQ:
1. Are you manufacturer or trader?
We are manufacturer, we have own factory in Dong Guan, we have independent department for purchasing, producing, processing, testing, packing, storing , and transportation, believe our team is best team in china.
2. Do you sell the accessories for Products ?
Yes. We have Match the parts for our testing equipment. If our machines damages by fire, water flood, earthquakes, unsteady of power and other natural disasters, we are willing supply match parts with lowest price for you.
3.How about the packing for product? Is it easy damaged during transportation?
For light structure products like Gold detector. Hand held metal detector and so on we takes of strong carton box .Â
For heavy structure products like conveyor belt needle detector. Food metal detector X ray machine .Our packing is Standard Export ploy Wooden Case.Â
Every prepackage have a plastic bags cover .
4. What's your main product?
We professional in needle detector. Metal detector. X ray machine and other related electronic products and machinesÂ
5.Where is your main sales market?
Our Gold meal detectors customer all over the world.
Our hand metal detector and walk through metal detector mainly in Southeast of Asia.
South of America.Middle east. East Europe and AfricaÂ
Our needle and food metal detector mainly customers are from Australia. USA. All Europe and AsiaÂ
6.How about your after-sales policy?
Customer first is our always principle . All of our products normal warranty is 12months. We give necessary back or video guidance for daily problems. If massive products occur big quality problems. Our technical and engineer support overseas service .Â
7.Do you accept customer Logo and customized ?
we accept kinds of customized and logo of all of our products for customersÂ
Â
A ball check valve is a check valve in which the closing member, the movable part to block the flow, is a spherical ball. In some ball Check Valves, the ball is spring-loaded to help keep it shut. For those designs without a spring, reverse flow is required to move the ball toward the seat and create a seal. The interior surface of the main seats of ball check Valves are more or less conically-tapered to guide the ball into the seat and form a positive seal when stopping reverse flow.
Ball check valves are often very small, simple, and cheap. They are commonly used in liquid or gel minipump dispenser spigots, spray devices, some rubber bulbs for pumping air, etc., manual air pumps and some other pumps, and refillable dispensing syringes. Although the balls are most often made of metal, they can be made of other materials, or in some specialized cases out of artificial ruby. High pressure HPLC pumps and similar applications commonly use small inlet and outlet ball check valves with both balls and seats made of artificial ruby, for both hardness and chemical resistance. After prolonged use, such check valves can eventually wear out or the seat can develop a crack, requiring replacement. Therefore, such valves are made to be replaceable, sometimes placed in a small plastic body tightly-fitted inside a metal fitting which can withstand high pressure and which is screwed into the pump head.
There are similar check valves where the disc is not a ball, but some other shape, such as a poppet energized by a spring. Ball check valves should not be confused with Ball Valves, which is a different type of valve in which a ball acts as a controllable rotor to stop or direct flow.
A diaphragm check valve uses a flexing rubber diaphragm positioned to create a normally-closed valve. Pressure on the upstream side must be greater than the pressure on the downstream side by a certain amount, known as the pressure differential, for the check valve to open allowing flow. Once positive pressure stops, the diaphragm automatically flexes back to its original closed position.
A swing check valve or tilting disc check valve is check valve in which the disc, the movable part to block the flow, swings on a hinge or trunnion, either onto the seat to block reverse flow or off the seat to allow forward flow. The seat opening cross-section may be perpendicular to the centerline between the two ports or at an angle. Although swing check valves can come in various sizes, large check valves are often swing check valves. The flapper valve in a flush-toilet mechanism is an example of this type of valve. Tank pressure holding it closed is overcome by manual lift of the flapper. It then remains open until the tank drains and the flapper falls due to gravity. Another variation of this mechanism is the clapper valve, used in applications such firefighting and fire life safety systems. A hinged gate only remains open in the inflowing direction. The clapper valve often also has a spring that keeps the gate shut when there is no forward pressure. Another example is the backwater valve (for sanitary drainage system) that protects against flooding caused by return flow of sewage waters. Such risk occurs most often in sanitary drainage systems connected to combined sewerage systems and in rainwater drainage systems. It may be caused by intense rainfall, thaw or flood.
A stop-check valve is a check valve with override control to stop flow regardless of flow direction or pressure. In addition to closing in response to backflow or insufficient forward pressure (normal check-valve behavior), it can also be deliberately shut by an external mechanism, thereby preventing any flow regardless of forward pressure.
A lift-check valve is a check valve in which the disc, sometimes called a lift, can be lifted up off its seat by higher pressure of inlet or upstream fluid to allow flow to the outlet or downstream side. A guide keeps motion of the disc on a vertical line, so the valve can later reseat properly. When the pressure is no longer higher, gravity or higher downstream pressure will cause the disc to lower onto its seat, shutting the valve to stop reverse flow.
An in-line check valve is a check valve similar to the lift check valve. However, this valve generally has a spring that will 'lift' when there is pressure on the upstream side of the valve. The pressure needed on the upstream side of the valve to overcome the spring tension is called the 'cracking pressure'. When the pressure going through the valve goes below the cracking pressure, the spring will close the valve to prevent back-flow in the process.
A duckbill valve is a check valve in which flow proceeds through a soft tube that protrudes into the downstream side. Back-pressure collapses this tube, cutting off flow.
A pneumatic non-return valve.
Multiple check valves can be connected in series. For example, a double check valve is often used as a backflow prevention device to keep potentially contaminated water from siphoning back into municipal water supply lines. There are also double ball check valves in which there are two ball/seat combinations sequentially in the same body to ensure positive leak-tight shutoff when blocking reverse flow; and piston check valves, wafer check valves, and ball-and-cone check valves.
Check Valves
Check Valves, Water Check Valves, Brass Check Valves, Sanitary Check Valves
ZHEJIANG KINGSIR VALVE CO., LTD. , http://www.cn-kingsir.com