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79040 Viega ProPress check valve Smart Connect technology Zero Lead Bronze, 3/4'' x 3/4''
Manufacturer Resources
Product Specs
- Connection Type:
- P1 x P2
- Material Type:
- Bronze
- Product Dimension:
- 3/4'' x 3/4''
- Department:
- Plumbing
- Product Group:
- Plumbing
- Product Subgroup:
- Valves
- Product Type:
- Valve
- Product Length:
- 1.248"
- Product Height:
- 1.248"
- Product Weight:
- 0.28 lbs
- Product Width:
- 2.953"
- Product Material:
- Bronze
Viega 79040 – Frequently Asked Questions
1) Does the Viega 79040 check valve need soldering, or does it press on?
It presses. The 79040 is a ProPress check valve with press connections on both ends (P1 x P2), so it goes on with a press tool and jaws, no torch, flux or solder. That matters on occupied buildings and tenant spaces where hot work permits are a problem.
2) Is the Viega 79040 check valve lead free and OK for drinking water lines?
The body is Zero Lead bronze, which is the material Viega supplies for potable water service. If your job calls for lead-free bronze on domestic hot and cold, this is the right body material.
3) Does the Viega 79040 check valve have to be installed in a particular direction?
Yes. A check valve is directional by design, so it has to go in with flow matching the arrow on the body. Install it backwards and it shuts off the line. Confirm direction before you press, because a pressed ProPress joint is permanent and coming back out means cutting the valve out.
4) What does Smart Connect technology on a Viega press valve actually do for me?
Smart Connect is Viega's unpressed-connection feature: a joint that has not been pressed will leak visibly during pressure test so you find it before the wall closes. On a check valve buried mid-run, that is the difference between a five minute fix and opening finished drywall.
5) How much room do I need to fit the 79040 check valve into a tight run?
It is a compact inline body: 2.953 inches across its longest dimension, with the other two at 1.248 inches each, and it weighs 0.28 lbs. Lay it out against your press jaw clearance, since the tool needs more space around the fitting than the valve body itself takes.
6) Can I use the 79040 to stop backflow between a water heater and a recirculation loop?
It is an inline check valve sized for 3/4 inch copper, which is the common size for water heater connections and recirc returns, so it will physically suit that spot. It is a check valve, not a testable backflow preventer, so it does not satisfy a code requirement for a backflow assembly on a service or cross connection.
7) Is the Viega 79040 check valve made in the USA or imported?
Made in Germany. That is worth knowing up front if you are buying for a government or federally funded job with domestic sourcing language in the spec.
8) What is the Viega part number for the 3/4 inch ProPress bronze check valve?
Viega 79040. That is the manufacturer part number for the Zero Lead bronze ProPress check valve in 3/4 x 3/4 press by press.
How fast can I get the Viega 79040 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Viega 79040 come with a warranty?
Absolutely. The Viega 79040 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Viega 79040?
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