Arsen Industrial Installation Product Co. Ltd.

Arsen Metal Braided Hose

Flexible metal braided hoses and fittings can be used widely in systems like water, steam, hot oil and gas with their resistance to pressure and flexible structure.
 
Conducting liquids, compensating the problems originated from installation, absorbing vibrations and expansions are some of the metal hoses' usage purposes.

There are parallel, open and closed joint options and they can be reinforced against pressure and environmental conditions with double braiding.


OPERATING CONDITIONS
Operating Pressure DN6-198 bar / DN200-10 bar
Operating Temperature -200 +600 șC
Nominal Diameter DN 6-200-1/4"-8"
MATERIAL FEATURES
Hose AISI 316L Stainless Steel
Braiding Wire AISI 304 Stainless Steel
Fittings Carbon Steel
Flexible Metal Braided Hose
Hose Fittings, depending on customer request, can be produced from stainless steel or brass and inner parts can be conical.

Areas of usage:

  • Iron & Steel Industry
  • Petroleum and gas plants
  • Chemistry industry
  • Heating and cooling systems
  • Food industry
  • Automotive industry
  • Paper production plants
  • Maritime industry
  • Defence industry
  • Moving systems
  • Any kind of depot and tank connections

At the ordering phase:

Diameter, length, connection type, connection material and environmental conditions should be indicated.

Cycle life:

Cycle life is the number that the hose reaches the point of initial motion position in a single direction motion.

Several factors affecting cycle life are listed below:

  • Incorrect Installation
  • Operating Pressure
  • Operating Temperature
  • Angle of Motion
  • Angle of Frequency

BOW HOSE
Flexible Metal Bow Hose

Flexible metal hoses can be produced with bow when required. Especially in moving systems, more force is applied to the point near connections. Reinforcement with a bow lenghtens cycle life of the hose by minimizing these forces. Additionally, increasing hose’s resistance to environment that are used in filling & emptying systems is one the advantages. Hoses in any diameter can be added bows.


JACKET HOSE
Flexible Metal Jacket Hose

In some cases, the hose is needed to be heated in order to maintain the flow of the liquid (like fuel oil) inside. At these cases, another hose in a smaller diameter is produced inside the main hose which is conducting very hot water or steam in order to provide the main liquid’s flow. As can be seen on the picture, jacket hoses are designed specially to be used at these type of systems. They can be produced in several diameters and dimensions.


CONNECTION TYPES


COUPLING (FEMALE) NIPPLE (MALE)
Flexible Metal Braided Hose Coupling Nipple
TURNING FLANGE FIXED FLANGE
Flexible Metal Braided Hose Turning Flange Fixed Flange
WELDING NECK ELBOW
Flexible Metal Braided Hose Welding Neck Elbow


Flexible Metal Braided Hose Technical Drawing


Dimensions
DN Inner Diameter Outer Diameter PN
20 șC (bar)
Bend Radius
mm inch d tol. (±) d1 d2 tol. (±) Unbraided Braided r static r dynamic
6 1/4" 6,1 0,20 9,6 10,7 0,30 24 198 25 80
8 5/16" 8,2 12,1 13,6 17 176 35 125
10 3/8" 10,1 14,3 15,6 12 131 40 130
12 1/2" 12,2 16,8 18,3 0,35 9 93 45 140
16 5/8" 16,2 21,8 23,8 0,45 7 85 68 160
20 3/4" 20,3 26,6 28,4 4 56 70 170
25 1" 25,4 0,25 32,2 34,3 0,50 3 65 85 190
32 11/4" 34,3 41,1 42,9 2,5 44 105 260
40 11/2" 40,0 0,30 49,6 51,9 0,55 2,5 50 130 300
50 2" 50,5 0,40 60,5 62,4 0,60 1,6 35 160 320
65 21/2" 65,5 80,0 83,0 1,5 16 200 440
80 3" 80,4 0,45 97,0 100,0 1,5 16 205 550
100 4" 100,4 0,50 119,0 122,0 0,85 1,2 16 230 660
125 5" 125,2 0,65 146,2 150,0 0,9 16 580 760
150 6" 150,2 1,50 173,2 177,0 1,50 0,9 12,5 320 915
200 8" 200,0 2,50 227,0 232,0 2,50 0,7 10 435 1115



Braided Hose Elbow Correct Installation Braided Hose Elbow Incorrect Installation
CORRECT INCORRECT

Braided Hose Elbow Correct Installation 2 Braided Hose Elbow Incorrect Installation 2
CORRECT INCORRECT

Braided Hose Angular Correct Installation Braided Hose Angular Incorrect Installation
CORRECT INCORRECT

Flexible Braided Hose U Correct Installation Flexible Braided Hose U Incorrect Installation
CORRECT INCORRECT

At the figures above, there are correct and incorrect installation types in some cases. Incorrect installation is the most important factor that shortens the hose’s cycle life.

Temperature Correction Factor

Temperature is one of the factors that reduces the hose’s resistance to pressure.
You can figure out of the material’s pressure resistance by multiplying it with the related temperature correction factor below.

Temp șC -200 -150 -100 -50 0 20 50 100 150 200 250 300 350 400 500 600 700
Corr. Factor 1.0 1.0 1.0 1.0 1.0 1.0 0.92 0.83 0.75 0.69 0.65 0.61 0.58 0.56 0.53 0.34 0.10


INSTALLATION AND USE
OFFSET MOTION

Offset Motion Calculation Modul A
a) ) Moving and is free to move out of line at neutral position.


Offset Motion Calculation Modul B
b) Moving end is restricted to move only up and down when crossing the neutral position.


Offset Motion occurs when one end of the hose assembly is deflected in a plane perpendicular to the longitudinal axis with the ends remaining parallel. When the offset motion occurs to both sides of the hose centerline, use total travel in the formula:
i.e 2 x “K”

Formula (a)


Formula (b)


You can calculate the needed hose length for a specific ofset distance using the moduls above.

  • The offset distance “T” for constant flexing should never exceed 25 percent of the centerline bend radius “R”
  • If the difference between “L” and “Lp” is significant, exercise care at installation to avoid stress on hose and braid at the maximum offset distance.
  • Note: The appropriate formula must be used in order to calculate Needed Hose Length according to condition of the moving end.


ANGULAR MOTION


Angular Motion occurs when one end of a hose assembly is deflected in a simple bend with the ends not remaining parallel. You can calculate the hose length for angular motion using the modul below.

Flexible Metal Hose Angular Motion


VERTICAL MOTION

Arsen Flexible Metal Hose Angular Offset Motion Calculation


This type of motion occurs when the center line of a hose assembly is bent in a circular arc and moves in a vertical direction. You can calculate the hose length and variation for vertical motion using the modul below.





HORIZONTAL MOTION


This type of motion occurs when the center line of a hose assembly is bent in a circular arc and moves in a horizontal direction. You can calculate the hose length and variation for horizontal motion using the modul below.


Arsen Metal Hose Horizontal Motion Calculation Modul