Our company sells and accepts applications for the production of a corrugated metal hose, similar to the imported sleeve MH 231. The metal hose has the permission of Rostekhnadozor and a full set of certificates for all areas of application.
Metal hoses are produced in accordance with the European Union standards ISO 9001: 2000, DIN, TUV CE, and comply with the requirements of GOST.
The flexible part of the hose is made from a stainless steel billet by hydraulically forming corrugations.
The main types of produced corrugated metal hose:
- with narrow corrugation;
- with medium corrugation;
- with wide corrugation;
- for boilers;
- high pressure.
By connection type:
- for welding;
- with blind flange;
- with rotating flange;
- with swivel collar flange;
- threaded connection with fixed nipple with external thread;
- threaded connection with a fixed sleeve with internal thread;
- threaded connection with a rotating ball fitting, with union nut;
- threaded connection rotatable, with seal;
- threaded connection with a fixed coupling made of cast iron with internal thread;
- connection with fitting, without nut.
Metal hoses are equipped with connections according to the customer's order. Connections are available in various designs and are made of various materials.
A stainless metal hose similar to MH 231 is manufactured with a diameter of 20 to 200 mm and a length of 250 to technologically possible. For manufacturing, a steel sheet with a thickness of 0.15 to 0.40 mm is used.
Metal hose MN 231 - operating conditions.
Corrugated metal hose is characterized by the following mandatory parameters:
- Working environment: water, steam, gases, air, oil products, aggressive media;
- Working pressure Rrab: from vacuum to 200 kg/cm2 ;
- Working environment temperature: from - 260 C0 to 650 C0;
Design features:
- conditional diameter: Du from 6 to 200 mm;
- corrugation material (main bellows): stainless steel 08X18H10T, 12X18H10T;
- branch pipe for welding: stainless steel 08X18H10T, 12X18H10T;
- braid (single, double): mesh type made of stainless steel wire 12X18H9T, 08X18H10T or without braid;
- connection type: welded, flanged, threaded.
Corrugated bellows metal hoses for welding are produced with ring type corrugation (bellows).
Corrugated stainless metal hose MH 231. Nomenclature.
Dimensions and pressure of corrugated metal hose:
Diameter DN | Diameter, mm | External diameter, mm | Pressure, bar (atm. ) | ||||||
---|---|---|---|---|---|---|---|---|---|
mm | inches | d | Tolerance (±) | d1 | d2 | Tolerance (±) | without braid | one braid | two braids |
6 | 1/4" | 6.1 | 0.2 | 9.6 | 10.7 | 0.3 | 24 | 198 | 297 |
eight | 5/16" | 8.2 | 12.1 | 13.6 | 17 | 176 | 264 | ||
ten | 3/8" | 10.1 | 14.3 | 15.6 | 12 | 131 | 196 | ||
12 | 1/2" | 12.2 | 16.8 | 18.3 | 0.35 | nine | 93 | 140 | |
sixteen | 5/8" | 16.2 | 21.8 | 23.8 | 0.45 | 7 | 85 | 128 | |
20 | 3/4" | 20.3 | 26.6 | 28.4 | 4 | 76 | 115 | ||
25 | one" | 25.4 | 0.25 | 32.2 | 34.3 | 0.5 | 3 | 60 | 90 |
32 | 11/4" | 34.3 | 41.1 | 42.9 | 2.5 | 54 | 80 | ||
40 | 11/2" | 40 | 0.3 | 49.6 | 51.9 | 0.55 | 2.5 | 42 | 63 |
fifty | 2" | 50.5 | 0.4 | 60.5 | 62.4 | 0.6 | 1.6 | 35 | 52 |
65 | 21/2" | 65.5 | 80 | 83 | 1.5 | 26 | 42 | ||
80 | 3" | 80.4 | 0.45 | 97 | 100 | 1.5 | eighteen | 29 | |
100 | 4" | 100.4 | 0.5 | 119 | 122 | 0.85 | 1.2 | sixteen | 25 |
125 | 5" | 125.2 | 0.65 | 146.2 | 150 | 0.9 | sixteen | 25 | |
150 | 6" | 150.2 | 1.5 | 173.2 | 177 | 1.5 | 0.9 | 12 | nineteen |
200 | eight" | 200 | 2.5 | 227 | 232 | 2.5 | 0.7 | ten | sixteen |
The bending radius of the metal hose depending on the diameter:
Diameter Du, mm | Bending radius, mm | |
---|---|---|
Static bend radius. | Dynamic bend radius. | |
6 | 25 | 80 |
eight | 35 | 125 |
ten | 40 | 130 |
12 | 45 | 140 |
sixteen | 68 | 160 |
20 | 70 | 170 |
25 | 85 | 190 |
32 | 105 | 260 |
40 | 130 | 300 |
fifty | 160 | 320 |
65 | 200 | 440 |
80 | 220 | 550 |
100 | 230 | 660 |
125 | 280 | 760 |
150 | 320 | 915 |
200 | 435 | 1115 |
Notes:
- Working pressure (Pwork) for metal hoses, indicated in all tables, is reduced to 20 C0 .
- The metal hose with end fittings is made from a single piece of flexible length.
- The length of the flexible part depends on the diameter and pressure and can reach a maximum of 100 meters.
- Standard products are given, it is possible to manufacture according to the characteristics of the customer.
- All products of JSC "GT" are certified.
Mandatory information when ordering stainless metal hoses MN 231:
- Nominal diameter (internal, in mm).
- The length of the sleeve.
- Operating pressure.
- Characteristics of the working environment: type, temperature. If the environment is corrosive (acid, alkali) - be sure to indicate this.
- The number of braids.
- Connection type and material.
Designations of sleeves when ordering:
Metal hose 50 - 16 - 2.0
- - 50 - Nominal diameter DN = 50 mm
- - 25 - Pressure Pwork = 16 kgf/cm2 (1.6 MPa)
- - 2.0 - Length L=2.0 m