The structural length standard of the knife gate valve and the execution standard of the knife gate

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. Although the ranking may change due to time and market conditions, the following brands are generally considered to be among the top brands in the valve industry: Water System Valves and Industrial ValvesThe following more influential first-line brands can be used as a reference, but are for reference only:

Suzhou Neway Valve Co., Ltd., Shanghai Guanlong Valve Machinery, Shanghai Qizhong Valve Manufacturing, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

National standard: "GBT12221-2005 metal valve structural length" 2005-08-01 implementation.

Library address. Clamp connection knife gate valve structure length) page 9.

In accordance with GB T12221-2005 "Metal Valve Structure Length".

Table 8 Structural length of knife gate valve with clamp connection.

The pressure-temperature rating of the shell material is according to GB9131.

The structural length and limit deviation of the valve body are specified in GBT, and the flange connection size and sealing surface type have special requirements, which are indicated in the order.

The stem and stem nut are trapezoidal threaded, and their basic dimensions and tolerances are specified in GB.

The connection size of the bracket and the drive device is according to the provisions of GB 12222.

The valve body is made of WCB material, according to the provisions of GB12229.

The ram is made of austenitic stainless steel (SS304) material, according to the provisions of GB 12220 and GB4237.

The stem is made of 1Cr CR13 material, according to the provisions of GB12220.

The stent and packing gland are made of carbon steel (WCB) material, according to the provisions of GB12229.

The stem nut is made of copper alloy (ZCUZN38MN2PB2, ZCUSN5PB5ZN5), according to the provisions of GB 12225.

The upper seal (packing) is made of graphite asbestos rope.

The shell test and seal test are in accordance with the provisions of GB T 13927.

For the effective sealing performance requirements, the leakage of the seal test is calculated as 1 mm s.

The cleaning requirements of the gas gate valve are in accordance with the provisions of JB T 7748.

The color of the paint is according to the provisions of JB 106.

The packaging, storage, transportation and quality assurance of gas gate valves are in accordance with the provisions of JB T 7928.

Shell pressure: sealing pressure: pressure, applicable temperature: 425, applicable medium: sewage, gas, pulp, etc.

(1) Valve body, (2) Bracket, (3) Hand wheel: ductile iron (4) Valve core: stainless steel.

5) Rubber gasket.

6) PTFE well plates.

7) Packing: PTFE sealing ring.

8) Pressed lid: stainless steel.

9) Screw, (10) Stem nut: stainless steel.

11) Spell cap: 35

Summary. Through way type ofvalvesfacetoface, end to end, center to face and center toenddimensions, the distance between two perpendicular to the valve axis plane at the end of the valve body channel.

Angle type ofvalvesfacetoface,end to end,center to face and center toenddimensionsThe distance between the plane perpendicular to the axis at one end of the valve body channel and the axis of the other end of the valve body.

Wafer Type Valves clamp valves with a fixed seal structure by means of a pipe flange. Its structural length refers to the distance between the two contact surfaces of the valve body channel terminal and the pipe flange.

Stainless steel knife gate valve 400 length.

Hello Stainless Steel Qiaojing Knife Gate Valve 400 Long Filial Piety: PZ73W-10P DN400 Extended Rod Stainless Steel Flanged Knife Gate Valve Manuscript Drive Hard Seal Knife Gate Valve 1 Piece Batch Logistics Changzhou City, Jiangsu Province Brand: Flypas Connection Form:

Pair clamps. I asked how long this valve was, not **.

5m-6m long.

The length of the valve, the distance from this flange to that flange.

Through way type ofvalvesfacetoface, end to end, center to face and center toenddimensions, the distance between two perpendicular to the valve axis plane at the end of the valve body channel. Angle type ofvalvesfacetoface,end to end,center to face and center toenddimensionsThe distance between the plane perpendicular to the axis at one end of the valve body channel and the axis of the other end of the valve body. Wafer Type Valves clamp the valves with a fixed sealing structure by the pipe flange.

Its structural length refers to the distance between the two contact surfaces between the terminal of the valve body and the flange of the pipe Qirudao.

The emergence of the knife gate valve solves the problems of large weight, large flow resistance, large area and difficult installation of ordinary gate valves, and can replace the general shut-off valve, which can work under the working pressure and operating temperature of -29-550. The gate of the knife gate valve has a shear function to scrape off the adhesive on the sealing surface and automatically remove debris, and the stainless steel gate prevents seal leakage caused by corrosion.

The knife gate valve is suitable for connecting or cutting off cement slurry, gold ore powder, mineral sand, slag, coal slime, pulp, wood pulp, tailings, fiber, dust, chemical treatment sewage, sedimentation tank, asphalt, silo export, fruit, grain, slaughterhouse wastewater and other media in the coal preparation, slag discharge, urban sewage treatment, food, papermaking, medicine, petroleum, chemical and other oil, water and steam pipelines of mining power plants.

Knife gate valve from the eighties into China, in less than 20 years, its scope of use from the ordinary field to a broader range of industries, from the mine power plant coal preparation, gangue, slag discharge, the development of urban sewage treatment, from the general industrial pipeline to food, health, medicine and other professional pipeline systems.

Knife gate valve has good shearing effect due to the use of knife type ram, and is most suitable for slurry, powder and granule, fiber and other fluids that are difficult to control, and is widely used in papermaking, petrochemical, mining, drainage, food and other industries. It has a variety of seats to choose from, and can be equipped with electric or pneumatic actuators according to on-site control needs to realize automatic operation of valves. Material:

Cast Iron, Carbon Steel, Stainless Steel Size Range: DN50 DN600 Maximum Pressure:.

Knife gate valve is a category of valves, because of the different structure called knife gate valve, its appearance uses some special media to have a good circulation, such as some viscous media, particle media, etc., to solve some problems of modern equipment, has become one of the indispensable components of modern equipment, so over time, the amount of use is more and more obvious, but also played some advantages of use, understand its alias knife gate valve, slurry valve, mud valve, its opening and closing parts are the gate, The direction of movement of the ram is perpendicular to the direction of the fluid, and the medium is cut off by a knife-edged ram that can cut the fibrous material, and the ram has two sealing faces.

Knife type gate valve drive mode.

For example, there are manual, sprocket, electric, pneumatic beam moving, hydraulic, bevel gear, electronically controlled hydraulic and pneumatic hydraulic driving methods. Knife gate valve shape: open rod, dark rod two kinds.

Knife gate valve material: cast iron, cast steel, carbon steel, stainless steel, fluorine lining, etc. Knife Gate Valve Seal:

Hard seal, soft seal, single-sided seal, double-sided seal, etc. Knife Gate Valve Models and Classifications: PZ73H, PZ73F, PZ73Y Manual Knife Gate Valves:

Manually driven, clamp-on connection, open rod parallel rigid single ram, seat sealing surface is cemented carbide, PTFE or stainless steel body processing, nominal pressure.

Haidun special branch cover valve for you to answer:

The size and number of bolt sizes for knife gate valves are generally determined by the diameter and pressure level of the valve. Here are some common knife gate valve matching bolt sizes:

DN50 DN300 knife gate valve generally adopts M16 bolts, and the nut specification is M16 or M20.

DN350 DN600 knife gate valve generally adopts M20 bolts, and the nut specification is M20 or M24.

Large-diameter knife gate valves above DN700 generally use M24 or M27 bolts, and the nut specifications are M27 or M30.

It should be noted that in the specific use process, the size of the matching bolt of the knife gate valve may be affected by different factors, such as medium characteristics, use conditions, etc., so when selecting the bolt, it is necessary to select the root cause according to the actual situation. In addition, when installing and removing bolts, attention should be paid to using the correct tools and methods to avoid problems such as bolt damage, hail damage, fluid damage or sliding.

MZ973X-10C-DN80 Electric Knife Gate Valve Model-Search Net MZ973X(Y) Mining Electric Knife Gate Valve Slurry Valve Connection Size and Related Mining Flameproof Valve Electric Device Selection Table MZ973X(Y) Mining Electric Knife Valve Size Specification Table Generally speaking, what is the external size of the valve-field development network 1, generally speaking, what is the external size of the valve, what is the external size of the valve, after the self-sealing valve appears to be searched, the medium flow direction of the globe valve is changed from the top of the valve disc into the valve cavity.

0 valve with bolt size table nominal pressure pn pn pn pn pn pn flange weight flange weight flange weight flange weight nominal diameter bolt jb valve structure size list 1, single gate gate valve: nominal diameter valve body length ( ) 15 130 130 130 thread specifications.

Knife gate valve installation steps and precautions - hardware - Tuba rabbit decoration network 4Before installing the knife gate valve, the user must calibrate the valve model, connection size and pay attention to the flow direction of the medium to ensure consistency with the valve requirements; 5.The user has two sealing surfaces in the installation of Zhejiang Wenzhou dark rod knife gate valve pz75**-China** commercial gate valve family, and the two sealing surfaces of the commonly used mode gate valve form a wedge-shaped and wedge-shaped angle varies with the valve parameters, usually 50, and the wedge-type knife gate valve.

m20。Zhongming knife gate valve from the eighties into China, in less than 20 years, its scope of use from the ordinary field to a broader range of industries, from the mining yard Naishan power plant to sell the model of coal preparation, gangue, slag discharge, the development of urban sewage treatment, from the general industrial pipeline to the food, health, medicine and other professional pipeline systems.