A Guide to All Things ProPress
ProPress is one of Viega’s most popular and frequently used systems. One of the main reasons contractors and plumbers have chosen to use ProPress is that there are more configurations and applications than any other brand. That’s why we are the #1 press fitting in the industry. From potable and non-potable water to steam, alcohols, and compressed air, Viega ProPress has over 1,000 applications between its copper and stainless steel fittings and valves.
Unsure if an application is approved for use with ProPress? Contact our technical support team and we’ll get you the answers you need.
Key Benefits of ProPress
ProPress connections can be made wet or dry in 7 seconds or less on both copper and stainless steel pipe. This saves you time as you can immediately perform pressure tests to ensure connections are made. All ProPress fittings come with SmartConnect® technology to help you quickly identify any unpressed connections. Plus, with no hot work, there’s no need for a fire watch.
Viega ProPress Copper
Available in copper tube sizes (CTS) from ½" to 4", ProPress copper and Zero lead bronze fittings and valves require no soldering or brazing and are the solution for nearly all industrial, commercial, or residential projects. It can also be used in marine applications. ProPress copper fittings come in more than 400 fitting configurations and more than 200 different fitting and valve configurations.
Specifics:
Operating Temperature: 0°F to 250°F
Pressure: 300 PSI
Sealing Elements: Each fitting will come with an application-approved sealing element. ProPress Copper is factory installed with EPDM (green dot). For sizes ½" to 2" you can field swap FKM and HNBR as needed depending on the approved application.
Approved Applications:
Water/Liquids
- Hot and Cold Potable Water
- Rainwater/ Graywater
- Chilled Water
- Hydronic Heating Water
- Steam (Low-pressure, Residential)
Fuels/Oils/Lubricants
- Ethanol
- Lube Oil
- Heating Fuel Oil
- Diesel Fuel
Gases
- Compressed Air
- Nitrogen
- Carbon Dioxide
- Carbon Monoxide
- Argon
- Ammonia
- Oxygen
- Hydrogen
- Vacuum
Special Media
- Acetone
ProPress Copper can also be used in underground applications (with proper authorization based on local codes) and concealed spaces.
Viega ProPress 316 Stainless
Viega ProPress 316 systems are stainless steel tubes, fittings, and valves in copper tube size (CTS) ranging from ½" to 4". The fittings require no brazing, threading, or welding. Viega ProPress Stainless fittings are engineered for harsh environments where the piping systems may come into contact with corrosive materials. It comes with more than 350 fitting configurations. ProPress Stainless fittings are also suitable for use in industrial processes such as utility systems, process piping and cooling water.
Viega ProPress 316 2-½" to 4" fittings feature a stainless steel grip ring and PBT separator ring. Viega also offers 316 stainless steel tubing in ½" to 4" sizes to complement the Viega ProPress Stainless fittings and offer a complete system solution.
Specifics:
Operating Temperature: 0°F to 250°F
Pressure: 200 PSI
Sealing Elements: The ProPress Stainless 316 product line comes with the EPDM sealing element factory installed but for sizes ½" to 2" you can field swap FKM and HNBR.
Approved Applications:
Water/Liquids
- Hot and Cold Potable Water
- Rainwater/ Graywater
- Chilled Water
- Hydronic Heating Water
- Treated Water
- Reverse Osmosis Water
- Paraffin Wax
- Methyl Ethyl Ketone
- Isopropyl Alcohol
- Nitric Acid
- Phosphoric Acid Concentration
- Fire Sprinkler NFPA 13, 13D, 13R
- Steam (Residential)
Fuels/Oils/Lubricants
- Ethanol
- Mineral Oil
- Lube Oil
- Diesel Exhaust Fluid
- Biodiesel
- Heating Fuel Oil
- Diesel Fuel
- Kerosene
- Gear Oil Lubricant
- Automatic Transmission Fluid
- Hydraulic Oil
- Engine Oil
- Engine Coolant
- Waste Oil
Gases
- Compressed Air
- Nitrogen
- Carbon Dioxide
- Argon
- Ammonia
- Ammonia
- Oxygen
- Hydrogen
- Acetylene
- Vacuum (Minimum absolute pressure / Maximum differential pressure)
Special Media
- Methanol
- Latex Paint
- Urea Solution
- Caustic Soda
- Acetone
Viega ProPress Valves
Viega also has a full line of valves – ball valves, check valves, butterfly, and balancing valves – to accompany its fittings. The valves come with the SmartConnect feature that will quickly identify any unpressed connections. The ball valves have lockable metal handles, stainless steel balls, and EPDM sealing elements. View the complete line of ProPress ball valves at https://www.viega.us/en/products/Valves/Ball-valves.html
See the approved applications chart, Viega Commonly Approved Applications
For a complete resource for ProPress brochures, sell sheets and more, visit https://www.viega.us/en/homepage/systems/propress-system.html. For questions about ProPress, call Technical Support at (800) 976-9819 or message us at techsupport@viega.us
