Products

Interlock Hose

Penflex interlocked metal hoses are made for a variety of specialized industrial applications and are available in a wide range of metals, styles and sizes.

Interlocked hose is manufactured by helically winding preformed metal strip over a sizing mandrel and folding together the adjacent edges forming the interlocked convolutions.

For detailed information on Penflex Interlocked Hose you may download the Interlocked Hose Product catalog pdf.

Penflex Interlock Hose

Please click on the products below for full details.

Interlock Hose: M-100 Pressure Hose

Overview:
Penflex M-100 pressure hose is a high quality, heavy duty, fully interlocked metal hose designed to withstand the abuses of many industrial applications. The inclusion of a quality packing into a specially formed groove during manufacturing serves as a continuous gasket to make the hose pressure tight. Media such as air and non-searching fluids can be conveyed by M-100 hose at moderate pressures and temperatures. For technical data refer to the appropriate specification tables.

Applications:
M-100 pressure hose is an ideally suited hose for metal expansion joints, boiler relief valve sealing, pulverized coal cyclone feeders, boiler draft systems and BOF lance hose assemblies. Additionally, M-100 pressure hose can be used in applications involving diesel exhaust, tank car unloading, barge unloading, fuel oil transfer, oven exhaust, suction lines and air intake lines.

Technical Data:

Size Nominal OD Maximum Working Pressure PSIG Nominal Burst Pressure PSIG Minimum Centerline Bend Radius Strip Thickness Weight Per Foot
½ 0.65 500 1500 6 0.015 0.4
¾ 0.93 495 1212 7 0.015 0.45
1 1.18 365 912 10 0.015 0.5
1 ½ 1.69 240 600 14 0.015 0.8
2 2.19 190 540 19 0.018 1.2
2 2.19 190 540 19 0.018 1.2
2 ½ 2.69 140 420 22 0.018 1.5
3 3.19 120 360 27 0.018 1.7
4 4.35 175 525 36 0.035 4.6
5 5.35 200 600 46 0.050 5.6
6 6.35 165 495 48 0.050 6.7
8 8.45 150 450 64 0.050 13.7
10 10.60 120 360 90 0.060 20.2
12 12.70 115 345 114 0.070 24.1
14 14.70 100 300 132 0.070 31.3
16 16.70 97 260 150 0.070 35.7
18 18.70 77 230 169 0.070 40.0
20 20.70 70 210 196 0.070 44.4
22 22.70 64 192 204 0.070 48.7
24 24.70 56 169 224 0.070 53.1
26 26.70 53 159 240 0.070 57.5
28 28.70 50 150 260 0.070 61.8

Interlock Hose: Conveyor Hose

Overview:
Penflex manufactures two distinct types of interlocked conveyer hoses designed especially for transfer of dry bulk materials: Standard Conveyor Hose and Smooth Bore Conveyor Hose.

Standard Conveyor Hose is a serviceable, unlined, medium weight hose featuring a fully packed interlocked construction.

Smooth Bore Conveyor Hose features rugged interlocking construction plus an integral metal strip lining. This lining provides Smooth Bore conveyor hose with a smooth bore that minimizes impaction and reduces turbulence for free flowing transmission of materials. Smooth Bore conveyor hose can also be produced with the inclusion of packing in the interlocks to reduce air loss and for low pressure requirements.

Applications:
Penflex conveyor hoses are excellent for applications involving the pneumatic transmission of flake or pelletized plastics, grain, coal dust, slag and other dry granular or abrasive materials. It can be used for the loading or unloading of ships, barges, containers, silos, elevators, highway and rail cars. Standard conveyor hose can also be used for air intake for diesel superchargers, exhausting gases from ovens and furnaces, and boiler draft system expansion joints.

Technical Data: STANDARD CONVEYOR HOSE

Nominal ID Nominal OD Minimum Coiling Diameter Wt/Ft SS
3 3.25 30 2.3
4 4.25 40 3.1
5 5.25 48 3.8
6 6.25 58 4.8
8 8.25 67 6.0
10 10.25 96 7.52
12 12.25 114 9.0
14 14.25 133 11
16 16.25 152 12.0
18 18.25 170 14.5
20 20.25 190 17.0

SMOOTH BORE CONVEYOR HOSE

Nominal ID Light Weight TLSS .015 Armour”/.015” Liner Standard Weight TLSS .018” Armour/.015” Liner Heavy Weight TLSS .024” Armour/.015” Liner
Minimum Coiling Diameter Wt/Ft Minimum Coiling Diameter Wt/Ft Minimum Coiling Diameter Wt/Ft
2 19 1.9 21 2.2
2 ½ 22 2.3 24 2.6
3 24 2.8 26 3.1 29 3.8
4 32 3.6 35 4.1 39 5.0
5 47 4.5 50 5.1 57 6.1
6 52 5.4 56 6.1 63 7.3
8 91 8.1 98 9.4
10 111 11.0
12 132 13.0
14 154 15.5
16 176 17.5
18 198 20.5
20 220 23.0

Standard Smooth Bore Conveyor Hose is supplied unpacked. If there is a pressure requirement consult the table below. This data is also applicable to Standard Conveyor Hose.

Packing Material Max. Temperature Max. Pressure Vacuum
Cotton 300 F 15 PSIG 15 in. Mercury, Max.
Elastomer 180 F 20 PSIG 20 in. Mercury, Max.
Silicone 500 F 20 PSIG 20 in. Mercury, Max.

Interlock Hose: Exhaust Hose

Overview:
Penflex exhaust hoses are typically produced in a wide range of ID sizes, metals and weights. This range is available to provide the right hose for the application at the most economical cost. Interlocked exhaust hose utilizes a fully interlocked construction for strength and durability while allowing the hose to have excellent flexing characteristics. The normal configuration of exhaust hose is unpacked and fully extended. In order to minimize leakage, however, exhaust hose can be supplied packed upon request

Applications:
Typical uses of exhaust hose include engine exhaust and vacuum and collection service, conveying, ventilating lines and protective casing for cable and tubing.

Technical Data:
Penflex exhaust hoses are produced in 304 stainless steel as standard. Other alloys may be available upon special request. The strip thickness, and thus the hose weight, can be selected to match the application depending upon the degree of rough handling and the abrasive conditions of the service. Penflex makes three different weights of exhaust hose as indicated in the following tables.

Series Weight Designation Strip Thickness
IE30 Light .010″ to .012″
IE50 Standard .018″ to. 020

The size range of exhaust hose is from 1/2″ to 8″ inside diameter. For sizes larger than 8″ID, use the standard conveyor hose (up to 20″ID).

IE30 Interlocked Exhaust Hose
Strip Thickness 0.010/0.012″

Nominal Diameters Minimum Coiling Diameter Wt/Ft
Inside Outside
½ 0.61 6 0.23
¾ 0.834 7 0.32 >
1 1.11 9 0.41
1 ¼ 1.385 11 0.44
1 ½ 1.61 13 0.54
1 ¾ 1.86 15 0.63
2 2.11 17 0.72
2 ¼ 2.36 19 0.80
2 3/8 2.540 20 0.85
2 ½ 2.61 21 0.89
2 ¾ 2.86 23 0.96
2 7/8 3.083 25 1.00
3 3.11 26 1.06
3 ½ 3.61 30 1.24
4 4.200 34 1.41
5 5.215 42 1.76
5 1/2 5.700 46 1.94
6 6.11 50 2.11
7 7.11 58 2.46

IE50 Interlocked Exhaust Hose
Strip Thickness 0.018/0.020”

Nominal Diameters Minimumn Coiling Diameter Wt/Ft
Inside Outside
1 ½ 1.66 17 0.86
1 ¾ 1.91 19 1.00
2 2.20 22 1.13
2 ¼ 2.495 25 1.27
2 ½ 2.66 27 1.40
2 ¾ 2.91 29 1.54
3 3.16 32 1.67
3 ½ 3.66 38 1.95
4 4.230 43 2.22
5 5.16 53 2.76
6 6.16 63 3.30
7 7.16 74 3.85
8 8.16 84 4.39

Notes:

  • Tabulated weights apply to stainless steel.
  • Intermediate sizes, alloys and flexibility characteristics are all subject to quotation from the factory.
  • Dimensional Tolerance is +/- .020”