Reduce Yard Time.

Viega products make construction, maintenance and repairs easier for customers working on vessels with small spaces and with tight windows for work. With no need for flame or harsh chemicals, workers can use Viega fittings to make quick connections while other trades work alongside them.
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Segments Served

Defense

Viega offers MegaPress CuNi, the only copper nickel press fitting with NAVSEA approval allowing shipbuilders and Navy personnel to better integrate fittings into onboard systems.

Commercial

Viega press fittings meet different approval needs for a variety of commercial marine projects.

Offshore

With a number of material types that work for most metric and standard pipe sizes, Viega press fittings work with tankers, bulkers, gas carriers and more.

Cruise/Passenger

Multiple sealing element options and fitting sizes make Viega press systems a trusted single supplier solution for the multiple needs for a cruise ship installation. 

Benefits of Viega Press Technology

Eliminate Hot Work

Viega press fittings require no open flames or hot work permits which means all the trades can work together at the same time, allowing the project to get done – fast.

Faster, Consistent Connections

A simple 11 joint assembly takes just under 11 minutes to press*. Compare that to more than two-and-a-half hours of welding and you’re talking about some serious cost savings.

Reliable + Quality Installation

Unlike groove or threaded connections that reduce pipe wall thickness, Viega fittings preserve pipe integrity. All of our fittings come factory assembled for maximum consistency in the field.

Faster System Commissioning

With Viega press fittings, you don't need to flush the system or perform environmental testing during install. Pressure testing can be completed immediately.

Viega in Action

Meeting the “Toughest Standard in the World”

The U.S. Navy takes testing seriously.
MegaPress® CuNi press fittings went through a rigorous hammer test to prove their strength for use on Navy combat ships, offering an alternative to traditional welding installations.  

Approved Applications

Viega ProPress and MegaPress systems are approved for a wide variety of standard applications including: water, fuels, oils, lubricants, and gases.

They are also approved for more than 2,500 nonstandard applications including:

Sea Water Cooling
Fire Main – wet, dry, foam
Sprinkler Systems
Bilge Lines
Tank Cleaning
Non-Essential Systems
Cargo Oil Lines
Fuel Oil Lines
Lubricating Lines
Heating
Compressed Air
Condensate Return 

 

Chemical Compatibility Submission

Approval of nonstandard applications requires chemical compatibility submission

Certified in U.S. 

Marine vessels experience unique obstacles. That’s why we subject our systems to the strictest quality and performance testing - including burst, vibration, fire, and seismic.  We also work directly with our customers to provide unique solutions to modern challenges. 

As a result, Viega press systems have earned a litany of certifications from governing bodies across the US and abroad.

Learn more about our full list of Marine Certifications

Marine Certifications

The Viega Difference

Viega press fitting systems are engineered to last the life of the system while delivering unrivaled consistency press-after-press. Viega fittings are secured with stainless steel grip rings using over 5,000 pounds of force and include a separator ring and sealing element outside of the flowpath to increase system lifespan and stand up to a broad range of pressures, temperatures, and applications. With smart connect technology, you can rest assured that all pipe connections have been made and false positives are a thing of the past.

Select the Viega System You'd Like to Learn More About.


Viega has two products made of 90/10 copper nickel specifically for the harsh and corrosive environments of shipbuilding and offshore project needs. MegaPress CuNi comes in standard sizes, while Viega SeaPress is metric-sized. Viega’s ProPress and MegaPress products are also useful in many marine projects, we have a solution for nearly every project.

*Metric sizes are available, contact your sales representative for more information.

Viega MegaPress

For use with Schedule 10 through Schedule 40 and Schedule 80

Benefits

  • More than 200 configurations 
  • Approved for more applications than any other carbon steel press fitting system 
  • 50-90% installation cost savings compared to traditional methods
  • First fitting approved for connecting gas pipe up to 4"
  • Nearly 150 configurations from ½" to 4"
  • More than 200 different fitting and valve configurations
  • Approved Applications

    Water/Liquids                                                

    Chilled Water    ≤50% Ethylene / Propylene glycol 
    Hydronic Heating Water9     ≤50% Ethylene / Propylene glycol
    Isopropyl Alcohol 
    Fire Sprinkler     NFPA 13, 13D, 13R 
    Steam     Low-pressure 
    Steam     Residential 

    Fuels/Oils/Lubricants

    Mineral Oil
    Lube Oil   Petroleum based 
    Biodiesel   ASTM D6751 
    Heating Fuel Oil 
    Diesel Fuel
    Kerosene
    Gear Oil   Lubricant
    Automatic Transmission Fluid
    Hydraulic Oil
    Engine Oil
    Engine Coolant 
    Waste Oil

    Gases

    Compressed Air     Oil Concentration ≤25 mg/m 
    Compressed Air     Oil Concentration >25 mg/m3 
    Nitrogen - N2
    Carbon Dioxide - CO2      Dry
    Argon - Ar
    Oxygen - O2     Non-medical Keep free of oil and grease
    Hydrogen - H2
    Acetylene     Test pressure 350 psi
    Vacuum     Minimum absolute pressure Maximum differential pressure

    For additional information, please see the approved applications chart. View Viega Approved Applications

Viega MegaPress CuNi

Class 200 90/10 copper nickel pipe from ½" to 4"

Benefits

  • The only copper nickel press fitting with NAVSEA approval (1/2" - 2")
  • For use on schedule 40 and Class 200 90/10 copper nickel pipe
  • One sealing element for all applications
  • Complies with DIN 86019, UNS C70600 compositionally and ASTM B466 and Mil-T-16420K dimensionally
  • Compatible with existing MegaPress jaws and rings
  • Stocked and available in North America
  • Listings and Certifications
    • ASME: B31.1 Power Piping
    • ASME: B31.3 Process Piping
    • ASME: B31.9 Building Services Piping
    • ASTM F3226: Standard Specification for Metallic Press-​Connect Fittings for Piping and Tubing Systems
    • CRN: 19839.5 A/B
    • United States Coast Guard Acceptance Letter 2019‑3660
  • Type Approvals

    • NAVSEA: Naval Sea Systems Command
    • ABS: American Bureau of Shipping Type Approval
    • BV: Bureau Veritas Type Approval
    • DNV GL: Det Norske Veritas Germanischer Lloyd Type Approval
    • LR: Lloyd’s Register Type Approval
    • RINA: Registro Italiano Navale
    • United States Coast Guard Acceptance Letter 2019‑3650

Viega ProPress Copper

For use on copper pipe in sizes ½" to 4"

Benefits

  • More than 400 different fitting configurations
  • More approvals than any other copper press fitting system  
  • Available with EPDM, FKM and HNBR sealing elements
  • More than 200 different fitting and valve configurations
  • Approved Applications

    Water/Liquids                                                

    Hot and Cold Potable Water   Test pressure 600 psi
    Rainwater/ Graywater
    Chilled Water    ≤50% Ethylene / Propylene glycol 
    Hydronic Heating Water     ≤50% Ethylene / Propylene glycol
    Steam     Low-pressure 
    Steam     Residential 

    Fuels/Oils/Lubricants 

    Ethanol       Pure grain alcohol
    Lube Oil      Petroleum based  
    Heating Fuel Oil 
    Diesel Fuel

    Gases

    Compressed Air     Oil Concentration ≤25 mg/m  
    Compressed Air     Oil Concentration >25 mg/m 
    Nitrogen - N2
    Carbon Dioxide - CO2      Dry
    Carbon Monoxide - CO
    Argon - Ar
    Ammonia   Ammonia environment7
    Oxygen - O2     Non-medical Keep free of oil and grease
    Hydrogen - H2
    Vacuum     Minimum absolute pressure Maximum differential pressure

    Special Media

    Acetone   Liquid

    For additional information, please see the approved applications chart. View Viega Approved Applications

Viega 316 ProPress Stainless

For use with 316 ProPress Stainless ECO Tubing

Benefits

  • More than 350 different fitting configurations
  • Approved for more than 800 different applications including potable water
  • Available with EPDM, FKM and HNBR sealing elements
  • Approved Applications

    Water/Liquids                                                

    Hot and Cold Potable Water   Test pressure 600 psi
    Rainwater/ Graywater
    Chilled Water    ≤50% Ethylene / Propylene glycol 
    Hydronic Heating Water9     ≤50% Ethylene / Propylene glycol
    Treated Water Fully desalinated, deionized, deminerlized, distilled(open system)
    Reverse Osmosis Water  <1 MΩ
    Paraffin Wax
    Methyl Ethyl Ketone
    Isopropyl Alcohol 
    Nitric Acid   Concentration ≤10%
    Phosphoric Acid Concentration ≤25%
    Fire Sprinkler NFPA 13, 13D, 13R
    Steam     Residential 

    Fuels/Oils/Lubricants

    Ethanol   Pure grain alcohol
    Mineral Oil
    Lube Oil   Petroleum based 
    Diesel Exhaust Fluid (DEF)
    Biodiesel   ASTM D6751 
    Heating Fuel Oil 
    Diesel Fuel
    Kerosene
    Gear Oil   Lubricant
    Automatic Transmission Fluid
    Hydraulic Oil
    Engine Oil
    Engine Coolant 
    Waste Oil

    Gases

    Compressed Air     Oil Concentration ≤25 mg/m  
    Nitrogen - N2
    Carbon Dioxide - CO2      Dry
    Argon - Ar
    Ammonia   Anhydrous 
    Ammonia   Ammonia environment7
    Oxygen - O2     Non-medical Keep free of oil and grease
    Hydrogen - H2
    Acetylene     Test pressure 350 psi
    Vacuum     Minimum absolute pressure Maximum differential pressure

    Special Media

    Methanol
    Latex Paint 
    Urea Solution  Concentration ≤40%
    Caustic Soda   Concentration ≤50%
    Acetone   Liquid

    For additional information, please see the approved applications chart. View Viega Approved Applications

Viega SeaPress

For use with metric copper tube size

Benefits

  • The only metric copper nickel press fitting with a double-sided press connection making it the strongest on the market
  • Fire risk mitigation – No hot work
  • Make secure press connections in seven seconds   
  • Complies with DIN 86019
  • Stocked in North America and ready to ship
  • Available in sizes 15 mm to 108 mm
  • Type Approvals
    • ABS: American Bureau of Shipping
    • ASTM F3226: Standard Specification for Metallic Press-​Connect Fittings for Piping and Tubing Systems
    • LR: Lloyd’s Register
    • BV: Bureau of Veritas
    • DNV GL: Det Norske Veritas Germanischer Lloyd
    • RINA: Registro Italiano Navale
    • United States Coast Guard Acceptance Letter 2019‑3650

Engineering Services

Whether you need a quick number for budgeting purposes, or a complete design with drawings and a material list, Viega's Engineering Services team is here for you.  Let our team of credentialed professionals help you out with your next project.

Viega Engineering

Want to know more about Viega's Marine Solutions?

Connect with your Marine Sales Manager

TJ Tracy

Elwood Ide

  • Pacific Nortwest/West Canada
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