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Steel Corrugated Hose Technical Specifications

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Stainless Steel Corrugated Hose Technical Data Sheet

Nominal
size
N.B.		 Without braid
pressure in kg/cm2		 With Single braid
pressure in kg/cm2		 With double braid
pressure in kg/cm2
Min. Bend Radius
Single Braiding Double Braiding
Inch mm Max. working
Pressure		 Test Pressure Max. working
Pressure		 Test
Pressure		 Max. working
Pressure		 Test
Pressure		 Static
mm		 Dynamic
mm		 Static
mm		 Dynamic
mm
1/4″ 6 4 6 80 120 140 210 30 100 40 120
3/8″ 10 4 6 70 105 125 180 40 150 50 160
1/2″ 12 3 4.5 64 64 10 150 44 200 60 220
5/8″ 16 3 4.5 66 90 90 135 56 200 60 220
3/4″ 20 2 3 50 75 90 135 70 200 80 250
1″ 25 2 3 50 75 80 120 90 200 100 260
1-1/4″ 32 1.5 2.3 40 60 60 90 110 250 120 350
1-1/2″ 40 1.5 2.3 32 50 50 75 130 260 160 400
2″ 50 1 1.5 26 40 40 60 175 350 180 410
2-1/2″ 65 1 1.5 20 30 32 50 200 410 200 450
3″ 80 1 1.5 10 25 25 45 210 450 220 550
4″ 100 0.8 1.2 14 21 20 30 230 560 260 660
5″ 125 0.6 0.9 12 12 18 30 230 660 300 815
6″ 150 0.6 0.9 10 15 15 25 320 815 420 1015
8″ 200 0.5 0.75 10 15 15 25 410 1015 540 1220
10″ 250 0.5 0.75 8 12 12 20 560 1220 620 1420
12″ 300 0.3 0.45 6 9 10 15 660 1430 750 1650
Note :

·          The above Technical details are subject to change without notice.

·          We can also supply the above Hoses for higher pressures.

·          The above values apply only to Braided Hoses and Assemblies at ambient temperature.

·          Burst pressure for steel corrugated hose is 4 times of the max. working pressure.

Stainless Steel Hose Temperature Correction Factors :-
Where hoses are required to operate at temperatures above 20°C a correction factor must be multiplied by the stated working pressure given for the selected hose. The factors for stainless steel flexible hoses are given in the table below and the following example shows how calculations are made for hoses required to operate at elevated temperature :-
Example:-
A 40 mm bore stainless steel hoses is required to convey fluid at a working pressure of 22 bar and a temperature of 300° C . From the table on Hose Technical data ( As Above ) the maximum working pressure at 20°C for single braid is 32 Bar .

Form chart below Maximum working pressure at 300°C=0.76×32=24.32 Bar. The hose selected is therefore suitable for the application .

Nominal Length for Movement Applications for Metal Hose :-

S = Overall Length
R = Bend Radius which must not be less than the minimum shown on table
L = Length of End fittings and Ferrule
C = Height
π = 3.142
Note :- in loop installations both connections and travel should be in the same plane as the bend.

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