Metal hoses with flange connections

Relevance

Metal hoses with flange connection technologically do not differ from metal hoses for welding, except for the flanges themselves. They have a similar way of production and manufacturing technology, as well as a similar bellows corrugated shell. The advantage of this type of connection is reliability, ease of installation, the possibility of multiple connection and disassembly.

Dy d d1 d2 d3 D No. of holes, n Pressure Рраб (kg/cm2) of flexible part, 1 m fittings (2 flanges), kg
20 18 65 11 28,0 90 4 6 1,6 1,06
20 18 75 14 28,0 105 4 16 1,6 1,72
20 18 75 14 25 105 1,6 1,96    
25 23 75 11 33,5 100 6 1,8 1,28  
25 23 85 14 33,5 115 16 1,8 2,34  
25 23 85 14 25 115 2,34 33,5 1,8  
32 30 90 14 42,5 120 6 2,3 2,02  
32 30 100 18 42,5 135 16 135 2,3 3,16
32 30 100 18 25 135 3,54 42,5 2,3  
40 38 100 18 100 14 51,5 130 6 2,4
40 38 110 18 145 16 51,5 2,4 3,92  
40 38 110 18 145 25 4,36 2,4 51,5  
50 48 110 14 61,0 6 2,8 2,66    
50 48 125 18 61,0 160 16 2,8 5,16  
50 48 125 18 61,0 160 25 2,8 5,42  
65 63 130 14 77,9 6 3,2 3,26    
65 63 145 18 77,9 180 16 3,2 6,44  
65 63 145 18 180 25 6,84 3,2    
80 82 150 18 87,0 6 4,9 4,88    
80 82 160 18 87,0 195 16 4,9 7,42  
80 82 160 18 8 195 25 87,0 8,12  
100 103 170 18 117,0 4 6 6,4 5,7  
100 103 180 18 117,0 215 8 16 6,4 8,86
100 103 190 22 117,0 230 8 25 8,2 11,84
125 128 210 18 142,5 245 8 16 7,0 12,76
125 128 220 26 145,5 270 8 25 9,0 16,52
150 157 240 22 173,5 280 8 16 8,5 15,62
150 157 250 26 176,0 300 8 25 10,5 20,24
200 204 295 22 223,0 335 12 16 13,0 20,2
200 204 310 26 226,5 360 12 13,0 25 26,64
250 250 335 18 370 12 6 16,0 15,34  
250 250 355 26 276,5 405 12 16 16,0 28,98

Application

Metal hoses with flange connections are used for transportation of liquid and gaseous media, including explosive and aggressive media in almost all industries. All stainless steel hoses for industrial use with flanged connections are made according to GOST, ISO 9001:2000, TUV CE, DIN. The main criteria for increasing the life of metal hose is a professional installation and proper operation of the pipeline.

Metal hose with flange connection 4657A with flexible part according to SRGS type.

High pressure metal hoses with flange joint 4657A and corrugated shell type SRGS, used for transportation of all kinds (including corrosive) medium, for connecting the pipeline, removing the vibration loads.

In order to increase durability and protection from mechanical damage the corrugated part of high pressure hose is protected — metal braid of net type. A cup is put on the braid of metal hose to unload the outermost corrugations, which covers part of the corrugations from the thermal effect of welding or soldering, reducing the bending stress in the area of fittings. The flange is welded to the flexible stainless part of the metal hose by argon-arc welding. Flexible part of hose is formed from steel profiled strip coiled along the spiral, thickness 0.15 — 0.4 mm, with further contact seam welding of corrugation apex. Metal hose with flange connection 4657A with flexible part of the type SRGS produced a diameter of 40 — 250 mm, the working pressure in the bellows of up to 25 atmospheres, and a length of 250 — 6000 mm. The form of the flange is free and rigid, in accordance with GOST.

Operating conditions

— Working medium temperature in the range of -260 °С+ 800 °С

— P (operating) — working pressure, depending on the vacuum: not more than 280 kg/cm2;

— Operating environment: air, steam, water, gases, aggressive media, oil products;

— Operating conditions of metal hose with flange connection depend on the material and type of flange.

Design features

— Bellows material — stainless steel of 12Х18Н10Т, 08Х18Н10Т grades;

— branch pipe is made of stainless steel of 12Х18Н10Т, 08Х18Н10Т sorts;

— flange is made of stainless steel of 12Х18Н10Т, 08Х18Н10Т grades;

— flange type: loose, rigid.

Note

— Working pressure (P operating) is given according to the temperature of 20 °C.
— Metal hoses with end fittings are made from a flexible single piece, whose length is 25 m.

Buy at a bargain price

Evek GmbH has a wide range of metal hoses in stock. We offer the best conditions for wholesale and retail customers. Products are certified. On our site you will find all the necessary information, Our online consultant is always ready to answer any questions. Internet address of the company:. We guarantee high quality and on-time delivery. We provide discounts for bulk orders.

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