PLEASE NOTE: Pressures for 200mm (8ins) and 250mm (10ins) are based on the use of METALFLEX Braided Braid

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1 METCONAB B-FLEX Stainless Steel Annular Convoluted Hose. A close pitch hose with a high degree of flexibility suitable for most applications and normally supplied. BRAID Single or double layers of Stainless Steel braid prevent elongation of the convoluted hose and increase the working pressures that the hose can accommodate. Nominal Maximum Working Maximum Test Burst Pressure at Minimum bend Nominal Approximate METALFLEX Size DN pressure at 20 C pressure at 20 C 20 C radius flexing O.D. Weight Hose Reference mm ins bar lbs/sq. in. bar lbs/sq. in. bar lbs/sq. in. mm ins. mm ins. Kg/m lbs/ft ASB/40 6 1/ ASB/ ASB/ ASB/ / ASB/ ASB/ ASB/ / ASB/ ASB/ ASB/ / ASB/ ASB/ ASB/ / ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ / ASB/ ASB/ ASB/ / ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ / ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ ASB/ ASB/1602 PLEASE TE: Pressures for 200mm (8ins) and 250mm (10ins) are based on the use of METALFLEX ed WORKING PRESSURE Working pressures are quoted for fluid temperatures at 20 C. Higher fluid temperatures will result in a lower working pressure. These modified working pressures can be calculated using the TEMPERATURE CORRECTION CHART on page 13. Convoluted Hose Core TEST PRESSURE To avoid distortion of the convoluted form of the hose, the maximum test pressures quoted in this literature must not be exceeded. All hoses are subjected to a test of one-and-a-half times the customer s stated working pressure, provided that this does not exceed the stated maximum test pressure. If a working pressure is not stated, then METALFLEX Standard Test Procedures will apply. Single HOSE AND BRAID MATERIALS B & C FLEX hose are normally supplied in Stainless Steel Grade 321 S31 (Werkstoff Nr: ). is normally supplied in Grade 304L (Werkstoff Nr: ) Available for specific applications are Hose and in Grade 316L (Werkstoff Nr: ). Double

2 METCONAC Double Single Convoluted Hose Core C-FLEX Stainless Steel Annular Convoluted Hose. A very close pitch hose for an exceptionally high degree of flexibility and high working pressures. Suitable for exacting areas of flexibility and vibration. BRAID Single or double layers of Stainless Steel braid prevent elongation of the convoluted hose and increase the working pressures that the hose can accommodate. Nominal Maximum Working Maximum Test Burst Pressure at Minimum bend Nominal Approximate METALFLEX Size DN pressure at 20 C pressure at 20 C 20 C radius flexing O.D. Weight Hose Reference mm ins bar lbs/sq. in. bar lbs/sq. in. bar lbs/sq. in. mm ins. mm ins. Kg/m lbs/ft ASC/40 6 1/ ASC/ ASC/ ASC/ / ASC/ ASC/ ASC/ / ASC/ ASC/ ASC/ / ASC/ ASC/ ASC/ ASC/ ASC/ ASC/ / ASC/ ASC/ ASC/ / ASC/ ASC/ ASC/ ASC/ ASC/ ASC/ / ASC/ ASC/ ASC/ ASC/ ASC/ ASC/ ASC/ ASC/ ASC/ ASC/ ASC/ ASC/ ASC/ ASC/ MATERIALS TESTING All hose assemblies are hydraulically tested before being despatched. Pneumatic testing by air or gas under water will be carried out where necessary. TEST and MATERIAL CERTIFICATES will be supplied when specifically requested at the time of ordering. HOSE END FITTINGS A comprehensive range of flanges, screwed connectors, tube ends or individually designed fittings can be welded to the hose by an Argon arc process. For details of standard fittings see pages 4 to 9. NB: Hose and only, can be supplied to customers having the necessary equipment to manufacture their own hose assemblies. MINIMUM BEND RADII Dimensions given are for flexing applications. For static conditions 60% of this value should be used. CHEMICAL SUITABILITY & TEMPERATURE CORRECTION See pages 10, 11 and 13 for details of these important parameters.

3 STAINLESS STEEL HOSE INSTALLATION AND SAFETY In order to obtain long life and satisfactory service from stainless steel hose it should be installed in the correct manner. The main cause of failure is fatigue in the convolutions and in order to minimise this the hose should be installed as shown below. It should be remembered that all flexible hoses have a limited life and when they are used in applications where dangerous chemicals or hot or inflammable fluids are passing through them, they should be examined and re-tested at regular intervals. Many of our customers have found it advantageous, by means of planned maintenance, to replace hoses at regular intervals where used in arduous conditions. PRESSURE EQUIPMENT DIRECTIVE (97/23/EC) Our stainless steel hoses are supplied to the appropriate category of the pressure equipment directive PED. They should only be used for applications within the category they have been supplied to or for a lower category. Hoses are marked as follows according to PED. Sound engineering Practice - AFT. Category I - CE, Month/Year of Manufacture XXXX AFT and Batch No. BNXXXXX, Category II - CE0353, Month/Year of Manufacture XXXX AFT, Batch No. BNXXXXX, Test Pressure Bar TPXX. Stainless steel hose should not bend to a radius smaller than recommended in the specifications, or fatigue and premature failure can occur. Avoid sharp bends near fittings. DO T TORQUE Torque or twisting is damaging to stainless steel hose. To avoid this condition use either a union or swivel flange at one end in place of a rigid connection. Always install hose so that movement originates in the same plane as centre line. When the hose is installed twisted this will lead to premature hose failure. AVOID COMPRESSION & TENSION Hose life will be reduced if hose is installed compressed or under tension. AVOID RUBBING Hose life will be considerably reduced should the hose be installed in a position where it is allowed to rub against metallic or other objects. NEVER OVERPRESSURISE Hoses must not be used above the safe working pressure. Account must always be taken of the operating temperatures, as safe working pressures are for ambient temperature only consult our literature for details. DAMAGED HOSES Any hose showing any signs of damage or any signs of leaking must be replaced immediately. CORROSIVE Always consult our Technical Department or the Chemical Manufacturer before using hoses with corrosive chemicals or in a corrosive environment. IF IN DOUBT If in doubt as to whether a stainless steel hose is suitable for an application and before re-testing please consult our Technical Department. Since METALFLEX does not control or supervise any additional fabrication, installation or use of their products, they cannot assume responsibility for subsequent performance. CONDITIONS OF SALE All products are sold subject to METALFLEX conditions of sale. Copies are available on request.

4 MOVEMENT AND TEMPERATURE CORRECTION MINAL HOSE LENGTH FOR MOVEMENT APPLICATIONS Vertical loop (maximum travel about fixed point) VERTICAL MOVEMENT S = 1.2πR + T /2 + 2L Vertical loop (short horizontal travel) HORIZONTAL MOVEMENT S = 1.2π(R + T /2 )+ 2L C = S -πr + R 2 S = Overall Length. R = Bend Radius which must not be less than the minimum shown on pages 2 & 3. L = Length over End Fitting & Ferrule. See pages 4, 5, 6, 8 & 9. C = Height. π = TE: In loop installations both connections and travel should be in the same plane as the bend. 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 of Stainless Steel flexible hoses are given in the table alongside and the following example shows how calculations are made for hoses required to operate at elevated temperatures. EXAMPLE A 40mm bore Stainless Steel hose is required to convey fluid at a working pressure of 15 Bar and a temperature of 300 C. From Page 2 the Maximum Working Pressure at 20 C for Single Ref.ASB/241 is 34 Bar. From the chart alongside, Maximum Working Pressure at 300 C=34x0.50=17.0 Bar. The hose selected is therefore suitable for the application. CARBON STEEL FITTINGS Carbon steel end fittings SHOULD T be used below -20 C or above 400 C. TYPE B-FLEX or C-FLEX Temperature C Cor. Factor

5 MINIMUM LENGTHS AND PRESSURE DROP STATIC Minimum overall length = M (Static) + (2 x L) L - Dimension from end fittings, see pages 4, 5, 6, 8 and 9. INTERMITTENT FLEXING Minimum Overall Length = M (Static) + (2 x L) M - Dimension from chart below relative to Offset Motion Y. L - Dimension from end fittings, see pages 4, 5, 6, 8 and 9. B-FLEX C-FLEX Nominal Size Nominal Size DN mm DN mm LENGTH M mm (FREE HOSE LENGTH) STATIC DIMENSIONS Y mm (OFFSET MOTION) , , PRESSURE DROP Because of the nature of the bore of a convoluted hose, the pressure drop due to friction is greater than that of a smooth bore pipe. The chart shows the approximate pressure drop for each size of convoluted hose related to a flow rate where water is the fluid. To utilize the chart, read off on the base line the flow rate required. Where a vertical from the selected point on the base line intersects the diameter line, the pressure drop is shown on the vertical axis corresponding to the point of intersection.