Viega MegaPress delivers fast, consistent press connections for carbon and stainless steel pipe from 1/2" to 4" in gas and fuel oil systems, hydronic heating and cooling, and industrial and technical gas applications including compressed air. Designed for retrofits, tight mechanical rooms, and live-system conditions, MegaPress helps reduce installation time and jobsite risk while maintaining long-term joint integrity.
Flameless press connections eliminate hot work, exposed threads, and system shutdowns, creating a clean, professional result. With hundreds of fitting and valve configurations, multiple sealing element options, and Smart Connect® technology to help identify unpressed connections, MegaPress supports a wide range of commercial and industrial applications including hospitality, education, healthcare, industrial plants, food and beverage facilities, data centers, stadiums, and commercial high-rise buildings. Backed by proven code leadership and expert Viega support, MegaPress lets you press with confidence from design through installation.
Viega MegaPress
For use with Schedule 10 through Schedule 40
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
Steam Low-pressure
Steam ResidentialFuels/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 OilGases
Compressed Air Oil Concentration ≤25 mg/m
Compressed Air Oil Concentration >25 mg/m3
Nitrogen - N2
Carbon Dioxide - CO2 Dry
Argon - Ar
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 pressureFor additional information, please see the approved applications chart. View Viega Approved Applications
Viega MegaPressG
For use with Schedule 5 to Schedule 40 carbon steel pipe
Benefits
- HNBR sealing element approved for use in gas and fuel oil applications
- First fitting approved for connecting gas pipe up to 4"
- Nearly 150 configurations from ½" to 4"
- Approved for underground applications in accordance with code and local AHJ
-
Approved Applications
Fuels/Oils/Lubricants
Mineral Oil
Lube Oil Petroleum based
Propane
Butane
Natural Gas Primarily methane
Heating Fuel Oil
Diesel Fuel
Gear Oil Lubricant
Automatic Transmission Fluid
Hydraulic Oil
Engine Oil
Waste OilGases
Compressed Air Oil Concentration ≤25 mg/m
Compressed Air Oil Concentration >25 mg/m
Nitrogen - N2
Carbon Dioxide - CO2 Dry
Argon - Ar
Hydrogen - H2
Acetylene Test pressure 350 psi
Vacuum Minimum absolute pressure Maximum differential pressureFor additional information, please see the approved applications chart. View Viega Approved Applications
Viega MegaPress FKM
For use with Schedule 5 to Schedule 40 carbon steel pipe
Benefits
- FKM sealing element allows for installation in higher temperature applications
- More than 180 configurations from ½" to 4"
- Approved for use in residential and low pressure steam, compressed air and many fuel/oil applications
-
Approved Applications
Water/Liquids
Chilled Water ≤50% Ethylene / Propylene glycol
Hydronic Heating Water9 ≤50% Ethylene / Propylene glycol
Isopropyl Alcohol
Steam Low-pressure
Steam ResidentialFuels/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 OilGases
Compressed Air Oil Concentration ≤25 mg/m
Compressed Air Oil Concentration >25 mg/m
Nitrogen - N2
Carbon Dioxide - CO2 Dry
Argon - Ar
Ammonia Ammonia environment7
Hydrogen - H2
Acetylene Test pressure 350 psi
Vacuum Minimum absolute pressure Maximum differential pressureFor additional information, please see the approved applications chart. View Viega Approved Applications
Viega MegaPress Stainless
For use with 304 and 316 IPS stainless steel
Benefits
- Secure connections in less than 16 seconds
- Approved for use with Schedule 5 to Schedule 40 pipe
- MegaPress Stainless 316 comes with a choice of EPDM or FKM 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 Water ≤50% Ethylene / Propylene glycol
Treated Water Fully desalinated, deionized, demineralized, 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 Low-pressure
Steam ResidentialFuels/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 OilGases
Compressed Air Oil Concentration ≤25 mg/m
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 pressureSpecial 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 MegaPress Press-in Branch Connector
For use with Schedule 5 to Schedule 40 carbon steel pipe
Benefits
- Create branches from main runs or install instrumentation onto existing piping.
- Can be installed on partially drained systems
- Available with EPDM or FKM sealing elements
- Compatible with existing standard press tooling
- Up to 80% faster than conventional methods
-
Approved Applications
- Industrial systems
- Compressed air systems
- Shipbuilding
- Heating and cooling systems (closed loop)
- Systems for technical gases (on request)
- Other applications pending Viega approval
- The Press-In Branch Connector is not suitable for use in drinking water installations
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Viega Fitting Systems
Innovative solutions. Tested to a higher standard.
Commercial and residential contractors worldwide trust Viega for all their plumbing and piping needs. With more applications and more approvals, Viega systems deliver unparalleled quality and durability. Learn more about how Viega pipe and fitting products can save you time and money on your next project.