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Flexible metal lined lead / hose Series

Weldcoa also offers a wide variety of flexible metal lined leads and hoses for compressed gas and cryogenic liquid applications. 

NEED A LEAD OR HOSE THAT REQUIRES MORE? NO PROBLEM, WE HAVE YOU COVERED.

Flexible Corrugated Metal Leads are the choice when low diffusion rates and higher integrity are required. The inner liner is made from two plies of metal strip that are formed into a helical profile and resistance welded. Because it is not mechanically formed from tubing it is extremely flexible and does not contain the residual stresses like traditional mechanically-formed helical hose. A single stainless steel braid is used to further increase the working pressure. Because the lead is lined with metal, it will not diffuse small molecules.

Inside of Flexible Metal Lined Lead

 

Weldcoa’s Flexible Metal Cryogenic Hoses are the choice for highly flexible hoses with an excellent cycle life. The inner liner is made from a single strip of stainless steel that is welded into a tube and hydraulically formed into the flexible corrugated shape. Because it is not mechanically formed from tubing it is extremely flexible and does not contain the residual stresses like traditional mechanically- formed helical hose. A stainless steel braid is used to further increase the working pressure.
Liquid Fill In Use

SAFETY FEATUREs

Quality control methods and meticulous attention to detail throughout the testing and cleaning process ensure that our customers will receive a leak-free lead that will provide years of service. 

  • Maximum allowable working pressure (MAWP) is based on a 4:1 Safety Factor. Therefore all of our metal lined leads' minimum burst level is Four Times Maximum Allowable Working Pressure
  • Every lead is 100% Hydrostatically pressure tested to 1.5 times the MAWP
  • Then 100% Helium leak tested
  • Then 100% Externally cleaned to remove manufacturing lubricants and debris
  • Then 100% Internally oxygen cleaned, dried, bagged to the highest safety standards including CGA's 4.1 requirements. 
  • All Weldcoa Leads and Hoses are made in the USA

Learn More ABOUT OUR Lead AND HOSE Testing and Cleaning 

available options

1/4" corrugated Stainless Steel Lined Flexible Metal leads - 4600 psi

Weldcoa’s 1/4" 4600 PSI Stainless Steel Lined Flexible Metal Leads are most commonly used in high purity gas charging and discharging manifolds. These flexible leads are available for handling most common Industrial and Specialty gases such as Nitrogen, Argon, Carbon Dioxide, Helium and other inert and flammable gases and gas mixtures. Because they will not diffuse small molecule gases, they are ideally suited for Helium and Hydrogen discharge applications.

Note: Stainless Steel is not recommended for use with high pressure Oxygen.

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1/2" corrugated Stainless Steel Lined Flexible Metal Hose - 3700 psi

Weldcoa’s 1/2" 3700 PSI Stainless Steel Lined Flexible Metal Hoses are an excellent choice when a large diameter is needed for high flow applications when used with small molecule gases such as Helium or Hydrogen. The most frequent use for these hoses is for tube trailer charging and discharging with Helium or Hydrogen. These flexible leads are available for handling most common Industrial and Specialty gases such as Nitrogen, Argon, Carbon Dioxide, Helium and other inert and flammable gases and gas mixtures.

Note: Stainless Steel is not recommended for use with high pressure Oxygen.

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1/2" Stainless Steel Lined Flexible Metal Cryogenic hose - 1186 psi

Weldcoa’s 1/2” 1186 PSI Stainless Steel Lined Flexible Metal Hoses are an excellent choice for atmospheric cryogen liquid and gas transfer. The most frequent use for these hoses is for the fill and vent lines for cryogenic cans or dewars.

Note These hoses are not for use with liquid Helium.

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Each Lead Comes With a 1 year warranty

For a period of one (1) year from the date of sale by Weldcoa, Weldcoa warranties the hose assembly and any component incorporated therein used in the transmission of compressed gas or cryogenic fluids to be free from manufacturing defects. These warranties shall be void if such hose and/or armor casing has been used in corrosive gas application or has otherwise been subject to abuse. If this warranty is in effect, Weldcoa's only obligation hereunder will be to provide replacement hose as the case may be, for any portion proven to have such defect or, at Weldcoa's option, to refund the purchase. User assumes all other risk, if any, including the risk of injury, loss or damage whether direct consequences or incidental arising out of the use, misuse or inability to use this product. Weldcoa disclaims all implied warranties of merchantability and fitness for a particular purpose.

For any questions, please feel free to contact us at (630) 806-2000 or email us at sales@weldcoa.com 
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100% MADE IN THE USA

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