Knife gate valve _ Product feature
1. Wafer-type seamless gate valve is used to processing abrasive materials containing particles or sediments. It is characterized by compact structure, small volume, low weight, convenient operation and maintenance. Dependent on different abrasive and pressure situation, three kinds of shutter materials are provides-----stainless steel, UHMWPE (Ultrahigh molecular weight polyethylene)and mixture of stainless steel and UHMWPE. The addition of lubrication fitting to valve can diminish the shutter friction and the valve moment. Lining is made of Xinhai rubber and replaceable.
LWXZF serial valves are usually provided in the manual version, but the electric and pneumatic versions are available according to clients' demands. Filed operation and remote control are both achievable. The structure length and flange size are usually manufactured by national standard, but we also provide the custom-made products to meet clients' requirements.
Wafer-type seamless gate valve _ Product application1 it can be applied for remotely controlled and automatically controlled pipe convey of corrosive or non-corrosive materials.
2. It can be used to uniformly add reagents for chemical and mining segments.
3. In the mining beneficiation process, it is used as uniform drawing valve to achieve balance ore quantity.
Wafer-type seamless gate valve _ Product principleThe gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straight-line flow of fluid and minimum restric¬ Tion is desired. The gate faces can form a wedge shape or they can be parallel. Gate valves are primarily used to permit or prevent the flow of liquids, but typical gate valves shouldn't be used for regulating flow, unless they are specifically designed for that purpose. Because of their ability to cut through liquids, gate valves are often used in the petroleum industry. On opening the gate valve, the flow path is enlarged in a highly nonlinear manner with respect to percent of opening. This means that flow rate does not change evenly with stem travel. Also, a partially open gate disk tends to vibrate from the fluid flow. Most of the flow change occurs near shutoff with a relatively high fluid velocity causing disk and seat wear and eventual leakage if used to regulate flow. Typical gate valves are designed to be fully opened or closed. When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low friction loss.
Gate valves are characterized as having either a rising or a non-rising stem. Rising stems provide a visual indication of valve position because the stem is attached to the gate such that the gate and stem rise and lower together as the valve is operated. Non-rising stem valves may have a pointer threaded onto the upper end of the stem to indicate valve position, since the gate travels up or down the stem on the threads without raising or lowering the stem. Non-rising stems are used underground or where vertical space is limited.
Bonnets provide leak-proof closure for the valve body. Gate valves may have a screw-in, union, or bolted bonnet. Screw-in bonnet is the simplest, offering a durable, pressure-tight seal. Union bonnet is suitable for applications requiring frequent inspection and cleaning. It also gives the body added strength. Bolted bonnet is used for larger valves and higher pressure applications.
|
DN |
Pressure(Mpa) |
Electric actuator model |
Maximum Torque
(Newton • meter) |
Motor power (KW) |
|
50 |
1.6 |
DZ10 |
100 |
0.25 |
|
65 |
1.6 |
DZ10 |
100 |
0.25 |
|
80 |
1.6 |
DZ10 |
100 |
0.25 |
|
100 |
1.6 |
DZ10 |
200 |
0.37 |
|
125 |
1.6 |
DZ10 |
200 |
0.37 |
XWXZF/D-1.6 series
|
DN |
A |
D |
D1 |
D2 |
n-Φd |
B |
H |
H1 |
|
50 |
60 |
165 |
125 |
94 |
4-Φ18 |
180 |
546 |
90 |
|
65 |
60 |
185 |
145 |
112 |
4-Φ18 |
200 |
565 |
100 |
|
80 |
64 |
200 |
160 |
126 |
8-Φ18 |
220 |
580 |
110 |
|
100 |
64 |
220 |
180 |
150 |
8-Φ18 |
240 |
610 |
120 |
|
125 |
70 |
250 |
210 |
178 |
8-Φ18 |
270 |
640 |
135 |
Yantai Xinhai Mining Machinery Co., Ltd belongs to Yantai Xinhai Mining Group founded in 1993, which is a large-scale private mining machinery company with strong comprehensive ability and wide mining application scope involving whose main business is mining EPC/turn-key service including project consultation, beneficiation experiment study, mining engineering design, equipment manufacture, installation and comissioning, personnel training and compliance of production and standard.
The technician expert group of Xinhai Mining Machinery Co., Ltd not only include many professionals in machinery manufacturing but also in mining and beneficiation engineering. The perfect cooperation of professionals in these two kinds majors lead to development and improvement of 80% types of mining equipment and stress on the new technique research and application of the aspects such as energy saving, energy reducing and enviromental protection and so forth. Xinhai always pay attention to innovation of technology and investment in reseach and development striving to build core competitive capacity and comparative advantages. Xinhai possess nearly 100 patents such as the anti-abrasive rubber and rubber product applied with the technology of unique " Liquid phase nanometer formula• Normal temperature high-frequency curing", products of tailings dry discharging with taking full advantage of water resource and technology for crushing and grinding in beneficiation plant. The new products and technology of Xinhai reach to advanced world standard and show their remarkable advantage and distinguished feature in some mine currently.
Besides normal management and executive department, Xinhai Mining Machinery Co., Ltd has the Mining Research Institute, Mining Design Institute, Mining Machinery Research Institute, Rubber Research Institute, Automatic Control Research Institute, three manufacturing plants and one pilot base. Xinhai becomes the mining machinery company with most complete combination of mining technology and mining machinery manufacturing currently.
Xinhai Mining Machinery Co., Ltd has strong production capacity, possessing 152 sets of fabricating machinery mating with variable heavy machinery manufacturing, advanced equipment for welding and assembling and complete main and auxiliary equipment for mechanization of pithead, mineral beneficiation plant and smelting of gold and silver. Xinhai has the most variety of mining machineries in the mining machinery industry current with products reach to more than 600. Xinhai also possess the advanced anti-abrasive rubber production line with its anti-abrasive rubber and rubber products demand exceed supply.
Xinhai Mining Machinery Co., Ltd has property of import and export with its products sold to more than 30 countries and areas becoming the manufacturing and exporting base of mining machinery in China.
Xinhai owns Installation and Comissioning Company formed from four installation teams. Xinhai gains good reputation and praise due to its good technology for site equipment installation, processing comissioning and site personnel training as well as its experienced construction experience and strong service gurantee.
Xinhai owns a good reputation in mining machinery industry and gains many national certificates such as "New & High Technology Enterprise in China", "Provincial Contract Trustworthy Enterprise", "Free Inspection Enterprise", "Trustworthy Enterprise of the Bank" and so forth. Xinhai has also has the ISO9001: 2000 certificate.
Xinhai Mining Machinery Co., Ltd advocates "Five Star Service" including "quality, performance, price, period of project and service". "The EPC/Turn-key Service" initiated by Xinhai has become the model of mining machinery.
