Metal hose with flange connection with hinged bolts
Relevance
A leak-proof corrugated metal hose of SRGS type with flange coupling and hinged bolts of 4656A series is designed for quick disconnecting-coupling of pipelines, transportation of various gaseous and liquid media (including oil refinery products). Flexible bellows corrugated part of the hose has protection in the form of mesh multilayer metal braid. Stainless steel cup is installed on hose in the connection area of armature with bellows part, which covers the end part of hose from thermal effect of welding or soldering, reducing bending stresses in the area of armature and making unloading on mesh braid of end corrugations.
| Sleeve designation | Pressure Рраб., МPа (kgf/cm2) | Minimum bend radius, mm | Dy | d | d1 | d2 | d3 | d4 | d5 | d6 | D | S | H max | l | l1 | Of flexible part (1 meter) | fittings (2 ends) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4656A | 50 | 50 | 55 | 70 | 55 | 70 | М12 | 61 | 90 | 22 | 159 | 111,5 | 112 | 1,6 (16) | 250 | 2,76 | 2,6 |
| 4656A-01 | 70 | 70 | 75 | 90 | 75 | 90 | М12 | 87 | 110 | 22 | 178 | 117 | 124 | 2,5 (25) | 350 | 4,9 | 5 |
| 4656A-02 | 70 | 70 | 75 | 90 | 75 | 90 | М12 | 87 | 110 | 22 | 178 | 117 | 124 | 2,5 (25) | 350 | 4,9 | 5 |
| 4656A-03 | 100 | 104,5 | 108 | 108 | 122 | М14 | 117 | 150 | 22 | 215 | 117 | 124 | 1,6 (16) | 500 | 6,36 | 7,8 | |
| 4656A-04 | 125 | 125 | 132 | 146 | 132 | 146 | М16 | 142,5 | 178 | 24 | 239 | 137 | 129 | 1,6 (16) | 625 | 7 | 9,9 |
| 4656A-05 | 150 | 150 | 160 | 175 | 160 | 175 | М16 | 173,5 | 215 | 24 | 274 | 143 | 135 | 1,6 (16) | 750 | 8,5 | 11,6 |
Description
Quick disconnect couplings are welded to the corrugated stainless steel hose using argon arc welding. Metal hoses with flange connections 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 similar bellows corrugated shell. The advantage of this type of connection is reliability, ease of installation, the possibility of multiple connection and disassembly.
Flexible part of the hose is formed from steel profiled band coiled in a spiral, the thickness of which is from 0.15 to 0.4 mm, with a further contact welding seam top corrugation (SRGS). Metal hose with flange connection 4656A with flexible part of the type SRGS produced a diameter of 50−150 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.
Application
Metal hoses with flange connection are used for transportation of different media, including explosive and aggressive ones, practically in all industries. All stainless steel metal hoses for industrial use with flange connection are made in accordance with GOST, ISO 9001:2000, TUV CE, DIN.
Operating conditions of sealed metal hose in the corrugated shell SRGS with flange connection and flip bolts 4656A series:
— Operating medium temperature in the range of -260 ° C + 800 ° C;
— 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 of the metal hose with flange coupling 4656A with flexible part by type SRGS:
— Material of the bellows is 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.
— Connection type — flange quick-connection with hinged bolts.
Note
— Working pressure (Pb) is given according to the temperature of 20 °C.
— Metal hoses with the end fittings are made from a flexible single piece, whose length is 25 m.
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