stainless steel flange
(flange)
Called flange or sudden fate. The pipe and tubes interconnected parts. Connected to the terminal. Flange on the tunnel, wearing bolts to connect the two flanges. Inter-liner with flange sealed. Flange tube (flanged pipe fittings) with a flange that (process or to set margin) of pipe. It may be cast from (not available), may also be a thread connecting or welding. Stainless steel flange connection (flange, joint) from a flange, a gasket and a number of components bolt nut. Gasket on the flange sealing surface between the two, fastening the nut, the pads on the surface of the pressure reaches a certain value after the deformed and fill sealed rugged surface, closely connected to not leak. Connexion is a removable flange connection. According to the connectivity of the components can be divided into containers and the flange of the flange. By sub-type structure, the overall flange, Looper flange and threaded flange. The overall common flange-welded flange and a welded flange. The rigid welded flange-less, applicable to the pressure p ≤ 4 MPa occasions; welded flange also known as high-neck flange, more rigid, high temperature pressure applied to the occasion. Flange seal the surface there are three types: flat-sealing surface, apply to the pressure is not high, medium non-toxic occasions; convex sealing surface, the higher the pressure applied to the occasion; tenon slot sealing surface, apply to the flammable, explosive , Toxic medium and high pressure of the occasion. Is a stainless steel flange gasket can produce plastic deformation, and a certain strength of materials Circle. Most are from non-metallic gasket from the Conference Board, or by a professional production of the factory in accordance with the regulations size, its material for asbestos rubber plate, Dan Mianban, polyethylene panels; also useful thin metal plate (white iron sheet, stainless steel) to asbestos Non-metallic materials such as wrapped up packages made of metal gasket; There is also a stainless steel flange with thin strip of asbestos and bring the system together from around the winding pads. Ordinary rubber pads applied to the temperature lower than 120 ℃ occasions; asbestos rubber pads applied to the steam temperature lower than 450 ℃, the oil temperature is below 350 ℃, less than 5 MPa pressure of the occasion, the general corrosive Medium, is the most commonly used acid Shimian Ban. In high
Pressure equipment and pipe, using copper, aluminum, steel on the 10th, made of stainless steel or other type of lens-shaped metal gasket. stainless steel flange gasket and sealing of high-pressure contact with the very narrow width (of contact), sealing gasket and the processing of a higher finish.
The flange connecting thread (silk T) flange and welding flange. Low-voltage wire to a small-diameter flange, high pressure and low pressure are the use of large diameter welded flange, different pressure the thickness of the flange and bolt diameter and the number is different.
According to the pressure on different levels, the flange pad have different materials, asbestos from the low-pressure pads, high-pressure pad to asbestos have metal pad.
1. To material of carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum, plastic, argon specify Lek, ppc, and so on.
2. To methods of production can be pushed into the system, suppression, training system, such as casting.
3. To create standards division can be divided into GB, electricity superscript, water standard, American Standard, the German standard, the Japanese standard, the Russian standard, and so on.
Flange connection
Flange (flange) is to connect two pipes, fittings or equipment, to their respective fixed in a flange on the flange between the two, together with flange pad with bolts tight
Solid together to complete the connection. Some of the pieces of equipment have been built and the flange, is a flange connection. Stainless steel flange connecting pipeline construction is an important connection.
Flange connection easy to use, able to withstand greater pressure. In the industrial pipeline, linking the use of stainless steel flanges very broad. Within the family, small diameter pipeline, but also
Low-voltage, invisible stainless steel flange connection. If the boiler room or a production site, are everywhere flange connection of pipelines and equipment.
stainless steel flangePM: Point letter
Specifications Model GB \ \ on the superscript \ \ American Standard \ \ German standard
- Denominated units
Price Negotiable
Stainless steel products that flange
German standard stainless steel flange
German standard 2576 (PL-)
Dai Jin welded steel pipe flanges
Plate-welded steel pipe flanges
Central-sets-welded steel pipe flanges (the standard)
Central-sets-welded steel pipe flanges
American Standard welded (WN-type)
American Standard up to flange
American Standard SO -
American Standard
GB flat flange
Flange
German standard flat flange
German standard SO -
Name: stainless steel flange
Specifications: 1 / 2 "to 80" (10-2000)
Pressure ratings: 0.6 Mpa ~ 32Mpa (150Lb ~ 2500Lb)
Material: 304,304 L, 316,316 L, 321, and other material
Common standards:
GB: GB9112-88 (GB9113 ? 1-88 ~ GB9123 ? 36-88)
American Standard: ANSI B16.5 Class150, 300,600,900,1500 (WN, SO, BL, TH, LJ, SW)
The superscript: JIS 5K, 10K, 16K, 20K (PL, SO, BL)
German standard: DIN2573, 2572,2631,2576,2632,2633,2543,2634,2545 (PL, SO, WN, BL, TH)
Ministry of Chemical Industry Standard: HG5010-52 ~ HG5028-58, HGJ44-91 ~ HGJ65-91
Machinery Department standards: JB81-59 ~ JB86-59, JB/T79-94 ~ JB/T86-94
Pressure Vessels standards: JB1157-82 ~ JB1160-82, JB4700-2000 ~ JB4707-2000
Applications: boiler pressure vessels, petroleum, chemicals, shipbuilding, pharmaceutical, metallurgy, machinery, food industries
Quality Management: ISO9001: 2000 quality management system certification
Note: flange can be customized Gezhongfeibiao
China's steel flange system of national standards GB
1) Nominal pressure: 0.25 Mpa ~ 42.0Mpa
a, Series 1: PN1.0, PN1.6, PN2.0, PN5.0, PN10.0, PN15.0, PN25.0, PN42 (main series)
b, Series 2: PN0.25, PN0.6, PN2.5, PN4.0
One PN0.25, PN0.6, PN1.0, PN1.6, PN2.5, PN4.0 a total of six grades of flange size of a flange to Germany as the representative of the European flange system and the rest for USA and France Portland flange as the representative of the Inter-American system.
In GB standards, the flange subordinate to the European System of Nominal pressure level for the largest 4 Mpa, flange subordinate to the Inter-American System of Nominal pressure level for the largest 42 Mpa.
2) Nominal Path: 10 mm ~ 4000mm
3) flange of the structure forms:
The flange
Unit flange
a, threaded flange
b, welding flanges welded flange
With welded flange-neck with neck-Chengcha welded flange plate welded flange
c, Central welded flange-song sets of cuffs neck-ring-song sets of welded flange plate welded flange-ring-song sets of plate flange plate sets of turn-flange
d, covered flange (blind hole flange)
4) flange sealing surface: flat, concave, convex surface, the tenon slot face, Central Link -
