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Glossary

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Annular Corrugated Hose: Corrugated metal hose made from seamless or longitudinally welded tubing with the corrugations formed in parallel planes perpendicular to the longitudinal axis of the hose. See Helical Corrugated Hose for alternative construction.

Armor: See Casing or Armor

Basket Weave Braid: See Plain Weave Braid for definition.

Beamed Wire: The wires in each group or carrier of a weave are in one plane and parallel to each other. Groups which are bunched together and not in one plane and parallel are referred to as "loose" wire. Groups or carriers are used in Diamond or Plain weave tubular braid.

Bend Restrictor: Interlocked strip wound hose installed on the outside of corrugated metal or non-metallic hose to prevent over-bending or kinking. See Casing and Armor.

BOP Hose: Blow out protection hose. Interlocked strip wound hose normally made from stainless that is installed over non-metallic hose as a protective guard, and to prevent a catastrophic "blow out". Commonly used for steam hose.

Braid Angle Braid Angle: By convention the braid angle for Universal braid is the angle between a line perpendicular to the longitudinal centerline of the braid and a line parallel to the groups of wire normally referred to as carriers. For tubular braid the parallel line is projected parallel to the carrier.

Braided Braid: The wires in each carrier are braided together as "flat braid" prior to being braided into tubular braid. This has the benefit of binding the wires together for increased strength. Braided braid is available for nearly all diameters but all tubular braid over 9" inside diameter (8" hose) is braided braid.

Braid Coverage: The percentage of area covered by wire when referenced to the total surface area of the cylinder or plane for flat braid - 95% coverage means that only 5% of the area is not covered by wire.

Braid Pitch: The distance measured parallel to the axis of the braid for one complete turn or revolution of a carrier. See also "picks".

Capillary Tubing or Casing: With reference to metal hose, "capillary" refers to small diameter very flexible stainless steel interlocked or square locked hose. Typical applications are for protection of instrumentation wiring, fiber optics, and pay telephone wiring. Can also be referred to as armor.

Carrier: A mechanism that carries a bobbin containing individual groups of wire. Carrier is frequently used as a term identifying the group of wires in a braid weave. Wire braid in normally specified by the diameter, number of carriers, number of wires per carrier and wire diameter.

Casing or Armor: Floppy or loose wound interlocked or square hose that is installed on the outside of another hose product for protection, or to prevent over-bending. See also Capillary Tubing, BOP Hose and Bend Restrictor.

Convoluted or Corrugated Metal Hose: Hose made from seamless or welded tubing by forming individual convolutions. The convolutions can be annular (in parallel planes), or spiral or helical. See Annular and Helical Corrugated Hose.

Diamond Weave Braid: Tubular braid that each carrier passes over one carrier and under one carrier per cycle. See Plain Weave as an alternative weave. Diamond weave is a tighter weave and holds its shape better. Most diamond and plain weave braid is also Beamed Wire.

ETS: Electrical trade size. Some Universal products that are used for electrical applications are made to ETS standards for compatibility with fittings.

Flat Braid: A single strand of wire or groups of wire that are braided into a flat ribbon or belt. Commonly used for electrical conductors, as reinforcement for non-metallic products, and to make braided braid tubular braid.

Flattened Tubular Braid: Tubular braid which is flattened by passing through a series of rollers to form a double layer. Commonly used for electrical applications.

Floppy Hose: Strip wound hose that bends, extends and compresses freely. Can also be referred to as loose wound.

Flow Direction: For unlined strip wound and corrugated hose the flow can be in either direction. The most desirable direction for strip wound hose is from the solid end to the free end (locked). If a flow liner is included in interlocked the flow must be from the fixed end to the free end of the liner. See Lined Hose.

HCR Hose: High crush resistant hose used in undersea umbilical cables and other applications that have high external pressure.

Helical Corrugated Hose: Corrugated metal hose made from seamless or longitudinally welded tubing with the corrugations formed in a helix or spiral relative to the longitudinal axis of the hose. See Annular Corrugated Hose as an alternative.

Hosed: Something that can happen if you buy from a competitor of Universal.

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Interlocked Hose: Strip wound hose that has a corrugation cross section that resembles a horizontal "S". Hose will not unwind and has a very high longitudinal strength. See also Square Lock.

Lay: The "normal" lay of strip wound hose is the "as formed" condition which will allow 50% of the rated travel in extension and 50% in compression. Strip wound hose is normally sold on a per foot basis with the price based on the fully extended length.

Lay Line: A straight line parallel to the centerline of strip wound hose used to detect twisting of the hose.

Lined Hose: Can refer to a metal strip (flow liner) that is formed into interlocked hose to form a smooth bore. The flow direction of the media is away from the free edge of the liner. Can also refer to a non-metal tube such as Teflon that is inserted in the bore of hose.

Loose Wound Hose: See floppy hose.

Open Seam Hose: Flat strip wound into an helix which is not joined. Used to reinforce non-metallic hose or electrical cables.

Packed Hose: Interlocked or square locked hose that has a non-metallic cord or metal wire packing inserted in the corrugation to make the hose leak tight or moisture resistant. Welded, brazed or soldered fittings can not be used with this product because of the effect of the heat on the packing. See Packed-on fitting.

Packed-on Fitting: The fitting is two-piece with the nut threaded to the helix of strip wound hose. Packing material is inserted between the nut and body.

Picks: The number of groups of wires or carriers in a braid weave per inch of axial length.

PIN Number: Part Identification Number - a unique number that identifies a product or assembly manufactured by Universal Metal Hose.

Pitch: Hose pitch is the distance measured parallel to the axis of the hose for one complete corrugation. Is also specified as the number of corrugations per inch or foot. See also Braid Pitch.

Plain Weave Braid: Also referred to as "basket" weave. Tubular braid that each carrier passes over two carriers and under two carriers per cycle. See diamond weave as an alternative. Diamond weave is a tighter weave that holds its shape.

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QS-9000: A quality system normally associated with the automotive industry which incorporates both business systems such as ISO-9000 and fabrication inspection systems and procedures. Considerably more stringent than ISO-9000.

Square Locked Hose: Strip wound hose with a corrugation cross section that resembles a "U" shape. Hose can be unwound - does not have the longitudinal strength equal to interlocked hose.

Stay-Put: A product name for Coolant Nozzles manufactured by Universal Metal Hose. The hose is made from high tensile steel with brass end fittings. The hose retains its shape when bent.

Strip Wound Hose: Metal hose that is made from strip that is processed through forming rolls and locked together in a spiral or helical pattern. See interlocked and square locked hose.

T & A Hose: Packed interlocked hose that is used to convey tar and asphalt for the roofing and paving industries.

Telephone Armor: Interlocked hose used to protect the electrical wires connecting the headset of pay telephones. Also used to connect alarm devices. Designed with high strength to resist vandalism.

Vibration Eliminator: A refrigeration connector developed in the early 1940's by the Anaconda Metal Hose Company and currently manufactured by Universal Metal Hose.

Working Pressure: The maximum operating pressure of hose at a stated temperature. By convention Universal uses the unit of psig for pressure and a reference temperature of 70 F with correction factors for elevated temperatures.

Wrinkle Belly: a term used to identify engine exhaust flexible tubing. The original product was heavy wall (approximately 1/16" thick) helical carbon steel hose.


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