F LEXIBLE DUCT VERSIONS

Transcription

1 Ref. no.: 2-16 F LEXIBLE DUCT VERSIONS fo r a ll n e e d s o f t h e v en ti t la i n o y g lo o n h c te Aero - ALUFLEX duct Aero - ALUSTRETCH duct Aero - ALUFLEX isolated duct Aero - ALUFLEX attenuator Aero - FLEX duct: in galvanized and stainless steel

2 Ref. no.: 2-16 Advantages and construction details Aero-Flex duct system Aero - ALUFLEX duct Ref. no. 2 is suitable for all needs of the ventilation technology. According to an approved production process, the duct is made out of two-ply aluminium strip, at the points of overlapping out of three-ply aluminium strip. This execution fulfils the requirements of DIN in case of low pressure loss. The technical data and the classification according to DIN can be seen in the chart on page 3. The production process helps to avoid material accumulation and enables clean separating by means of simple cutting tools, such as knives, for example. Aero - FLEX duct Ref. no. 7 and 8 made from galvanized steel strip (ref. no. 7) and on request made from stainless steel material no (ref. no. 8), is manufactured according to the above mentioned production process, however out of single-layer strip and at the points of overlapping out of two-ply strip. Aero - ALUSTRETCH duct Ref. no. 5 is a two-ply Aero-ALUFLEX duct, compressed to a length of about 12. It is extendable to an effective length of 00. The advantages of the compressed duct are its high stability and the low space requirement as far as transport and storage are concerned. Aero - ALUFLEX isolated duct Ref. no. consists of two Aero-ALUFLEX ducts with intermediate insulating layer made from glass fibre. This execution provides an efficient solution in many areas of the ventilation technology because an expensive, subsequent insulation is not required or can not be realized any more. The isolated duct is manufactured in the nominal diameters or dimensions according to ref. no.. Special dimensions and executions on request are available in the short term. The usual fastening elements (push-fit ends with rolling rubber ring seal, shrink tape, etc.) are available. The processing is as unproblematic as the processing of the Aero-ALUFLEX duct. The bending radius is according to the nominal width the 2 to 2,5-fold of the diameter of the external duct. Aero - ALUFLEX attenuator Ref. no. 13 is based on the Aero-ALUFLEX duct, too. The inner duct is mechanically perforated in the adjacencies of the insulation section. The non-combustible insulating layer is coated with abrasionproof glass fibre and is delivered in the thickness of 25 and. A thickness of 75 is available on request. On page 8 you can see the values of sound dissipation (insertion loss) depending on the insulation thickness. End caps made from galvanized steel facilitate a simple duct installation. Depending on the nominal width the bending radius is the 2 to 2,5-fold of the diameter of the external duct. The Aero- ALUFLEX attenuator can even be mounted in bent shape

3 Ref. no.: 2 Aero - Flex duct r Bending radius r = d min 2 Nominal width [] [] [] [N/0] [N/0] [Nm] [] [N] [%] C C C , C 0 6-0, C C C C C C +1, C -0, C B B B , B , B B B * comparative value Outside diameter Tolerance +2,5-0,0 Peak compression strength *Spiral duct according to DIN Aero-FLEXduct ref. no. 2 Bending moment Sag Force required for upsetting on 0,9 x length Manufacturing according to specific request Resiliency Classification according to DIN Material: Ref. no. 2 Pure aluminium according to DIN1712 class 3 or aluminium forgeable alloy according to DIN 1725 class 1 Execution: Ref. no. 2 double-ply, at the points of overlapping three-ply Behaviour in fire: Resistance to fracture: Leakage loss: non combustible according to DIN 42 class A1 up to a nominal width of 0 > bending cycles, over a nominal width of 0 > 7 bending cycles < 0,4 x -4 m 3 / m2s when the over pressure is mbar - 2 -

4 Ref. no.: 2 / 7 / 8 Aero - Flex duct Manufacturing length 6000 Nominal width d2 [] Outside diameter d1 [] Ref. no. 2 Price / m Ref. no. 7 Ref. no , , , , , ,60 * ,90 * 6, 18, , * 7,15, 0 6 4,80 * 7, 21, ,35 * 8,15 24, ,00 * 8,85 27, ,70 * 9,95, , *,55 32, ,60 * 11, 35, ,70 * 13,00 39, ,75 * 14,35 43, ,95 * 15,95 49, ,40 * 17,90 54, ,85 * 22,45 61, ,00 * 24,65 65, ,70 * 26, 68, ,05 29,40 77, ,95 32,45 87, , 36,45 98, ,15 40,55 9, not in stock, *production on request (alternatively ref. no. 5) Material: Ref. no. 2 aluminium Ref. no. 7 galvanized steel strip Ref. no. 8 stainless steel, material no Manufacturing length: 6000, fixed lengths by arrangement Execution: Ref. no. 2 double-ply, at the points of overlapping three-ply Ref. no. 7 single-layer, at the points of overlapping double-ply Ref. no. 8 single-layer, at the points of overlapping double-ply Behaviour in fire: non combustible according to DIN 42 class A1 Specifications: Aero-ALUFLEX duct, ref. no. 2, made from taped aluminium strip, execution according to DIN non combustible according to DIN 42 class A1. : Length: Manufacturer: Untere Hofwiesen D Friedrichsthal - 3 -

5 Ref. no.: 5 Aero - Alustretch duct Delivery length ø 80-2 ø = 12 = 00 Delivery length extended 00 Nominal width d2 [] Price/ piece Comparative price/meter run in case of extension to 5 m 75 17,95 3, ,95 3, ,45 4, ,45 4, ,45 5, ,90 5, ,45 6, ,85 6, ,45 7, ,40 8, , 9,04 224,65, ,60 11, ,55 12, ,25 13, , 14, in stock, on the spot Material: Pure aluminium according to DIN1712 class 3 or aluminium forgeable alloy according to DIN 1725 class 1 Behaviour in fire: non combustible according to DIN 42 class A1 Specifications: Aero-ALUSTRETCH duct, ref. no. 5, made from taped aluminium strip, compressed to a length of 12, extendable up to about 00, non combustible according to DIN 42 class A1. inner duct: piece: Manufacturer: Untere Hofwiesen - 4 -

6 Ref. no.: Aero - Aluflex isolated duct external duct inner duct L inner duct d2 [] external duct d1 [] Price / m , , , , , , ,60 0 2, , , , , , , , Construction: Temperature stability: Inner and external duct made from Aero-ALUFLEX duct (ref. no. 2), with insulating layer made from glass fibre up to 0 C Bending radius r min : up to 0 = 2,0 x (external diameter) over 0 = 2,5 x (external diameter) Delivery length: up to 6000 Specifications: Aero-ALUFLEX isolated duct, ref. no., made from Aero-ALUFLEX duct (ref. no. 2), as inner and external duct, insulating layer made from glass fibre (non combustible according to DIN 42 class A1). inner duct: external duct: Length: Manufacturer: Untere Hofwiesen D Friedrichsthal - 5 -

7 Ref. no.: 13 / 15 / 16 Aero - Aluflex attenuator external duct inner duct L inner duct d2 [] external duct d1 [] Insulating layer 25 L = 0 L = 7 L = 00 L = 12 L = 10 L = 17 L = ,40,80 24,25 27,70 31,15 34,60 37,65 0 1,60 24,65 28,75 32,80 36,85 40,90 45, , 29,00 33, 38,00 42, 47,00 53, ,65 29,95 35, 40,45 45,75 51,00 56, , 31,90 37,55 43, 48,80 54,45 60, ,55 33,40 39, 45,05,90 56,75 62, , 38,60 45,15 51,70 58, 64,75 72, ,55 41,85 49,15 56,45 63,75 71,05 79, ,35 46, 54,65 62,80 70,90 79,05 88, ,80,95 60, 69,25 78,40 87,55 96, ,65 51,80 60,95 70, 79,25 88,40 99, ,25 52,45 61,65 70,85 80,05 89, 3, ,55 53,70 62,90 72, 81, 90, 6, ,15 58,00 69,85 81,70 93,60 5,45 118, ,45 64,90 78,35 91,80 5, 118,70 132, ,45 73,80 89,15 4, 119,80 135,15 1, inner duct d2 [] Construction: external duct d1 [] Insulating layer L = 0 L = 7 L = 00 L = 12 L = 10 L = 17 L = ,80,45 35, 39,75 44,40 49,00 54, ,40 33,90 39,45 44,95, 56,00 61, ,45 38,80 45, 51,40 57,70 64,05 70, ,65 41,35 48,05 54,75 61,45 68,15 74, ,80 43,95 51, 58,25 65,40 72,60 79, ,55 44,60 51,65 58,70 65,80 72,85 81, ,40 49,80 58,15 66,55 74,90 83, 91, ,40 54,45 63,45 72,45 81, 90, 0, ,15 55,15 64, 73, 82,25 91,25 1, ,00 56,65 66, 76,00 85,65 95, 1, , 60, 72, 84, 96, 8, 121, , 61,90 74,60 87,25 99,95 112,60 124, ,35 63,00 75,70 88,40 1, 113,80 126, , 69,70 84, 98, 112,90 127, 141, ,00 76,55 92, 7,60 123,15 138,70 154, Insulating layer 75 on request External and inner duct made from Aero-ALUFLEX duct (ref. no. 2), inner duct perforated in the area of the insulating section. Insulating layer made from glass fibre with abrasionproof glass fleece, end caps alternatively with male coupling or rolling rubber ring seal (additional charge). Bending radius r min: up to 0 = 2,0 x (external diameter) over 0 = 2,5 x (external diameter) Attenuator ref. no. 15: Price setting: factor 2 of ref. no. 13 External duct made from galvanized steel or galvanized spiral duct, inner duct made from perforated Aero-ALUFLEX duct. Attenuator ref. no. 16: External duct made from galvanized steel or galvanized spiral duct, inner duct made from galvanized perforated plate. Price setting: Factor 3 of ref. no

8 Ref. no.: 13 Aero - Aluflex attenuator Values of acoustic insulation regarding the echo chamber procedure in accordance with the ISO specification DIN 7235 (db) 60 Insulating layer approx. 25 (db) 60 Insulating layer approx DN 0 DN 125 DN DN 0 DN 125 DN 140 DN 160 DN 180 DN 160 DN 180 DN 0 DN 0 DN 224 DN 2 DN 224 DN 2 DN 280 DN 315 DN K 2K 4K 8K (HZ) Length K 2K 4K 8K (HZ) Length 00 (db) 60 Insulating layer approx. (db) 60 Insulating layer approx. DN 0 DN DN 0 DN 125 DN 140 DN 160 DN 180 DN 0 DN DN 140 DN 160 DN 180 DN 0 DN 355 DN 315 DN 2 DN 280 DN 2 DN 355 DN 315 DN 280 DN K 2K 4K 8K (HZ) Length K 2K 4K 8K (HZ) Length 00 Specifications: Aero-ALUFLEX attenuator, type TSD, ref. no. 13, made from Aero-ALUFLEX duct (ref. no. 2), the inner duct mechanically perforated. Insulating layer made from glass fibre with glass fleece, abrasionproof and non combustible according to DIN 42 class A1. inner duct: external duct: Length: Manufacturer: Untere Hofwiesen D Friedrichsthal - 7 -

9 Ref. no.: 2-13 Aero - Aluflex duct Duct friction chart 0 18, Air velocity [m/s] 5,0 12 3, , ,0 Resistance R [Pa/m] ,5 0,3 0,2 Resistance R [WS/m] d [] 0,1 0,05 0, , , Volume flow V [m 3/h] 3 Example: V = 00 m /h; duct NW 2 â 2,9 Pa/m Valid for air of a temperature of + C and the thickness of 1,2 kg/m 3 Resistance determined x correction factor = actual resistance Temperature ( C) - ± Correction factor 1,158 1, ,936 0,88 0,83 0,785 0,746 ALUFLEX bend: Resistance approx. 2 x resistance of the plain ended pipe bend of the same dimensions