Penflex interlocked hose is made for a variety of specialized industrial applications and available in a wide range of metals, styles and sizes. Differing from corrugated hoses in its construction, interlocked hose is manufactured by helically winding preformed metal strip over a sizing mandrel and folding together the adjacent edges to form interlocked convolutions.
A specific product category made using interlocked hose is instrumentation tubing. These assemblies are used in numerous industries, specifically by manufacturers of process and control instrumentation; measuring and controlling devices; analytical instruments; search and navigation equipment; and medical instruments. Typical applications include temperature measuring, recording, wiring conduit or armor cable, electronic shielding, and protective casing.
Made from 304 stainless steel, instrumentation tubing comes in two configurations, or constructions, commonly called SquareLok and InterLok, often abbreviated as SL and FI. Other metals are available.
Full product specs can be found here.
Safety Relief Valve Vent Connectors
Vent connectors play a critical role in helping piping systems absorb the movements and vibrations associated with the quick opening and closing of safety relief valves. Penflex manufactures vent connectors using both metal bellows and our unique fully-packed and pressure-tight M-100 interlocked hose.
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Penflex Interlocked Hose
Please click on the products below for full details. For detailed information on Penflex interlocked hose, download the Interlocked Hose Product catalog.
Interlock Hose: Exhaust Hose
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
Typical uses of exhaust hose include engine exhaust and vacuum and collection service, conveying, ventilating lines and protective casing for cable and tubing.
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|
IE50 Interlocked Exhaust Hose
Strip Thickness 0.018/0.020”
|Nominal Diameters||Minimumn Coiling Diameter||Wt/Ft|
- Tabulated weights apply to stainless steel.
- Intermediate sizes, alloys and flexibility characteristics are all subject to quotation from the factory.
- Dimensional Tolerance is +/- .020”
Interlock Hose: Conveyor Hose
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.
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|
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|
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: M-100 Pressure Hose
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.
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.
|Size||Nominal OD||Maximum Working Pressure PSIG||Nominal Burst Pressure PSIG||Minimum Centerline Bend Radius||Strip Thickness||Weight Per Foot|