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79740 Viega ProPress union Smart Connect technology Zero Lead Bronze, 1'' x 1''
Manufacturer Resources
Product Specs
- Connection Type:
- P x MPT
- Material Type:
- Bronze
- Product Dimension:
- 1'' x 1''
- Department:
- Plumbing
- Product Group:
- Plumbing Fittings
- Product Subgroup:
- Unions
- Product Type:
- Union
- Product Length:
- 1.693"
- Product Height:
- 1.811"
- Product Weight:
- 0.901 lbs
- Product Width:
- 2.047"
- Product Material:
- Bronze
Viega 79740 – Frequently Asked Questions
1) What are the two ends on the Viega 79740 ProPress union - is one side threaded?
Yes. The 79740 is a P x MPT union: one end is a 1 inch ProPress copper press socket, the other is 1 inch male pipe thread. So it goes press on the copper side and threads into a female NPT port on the other, which is the usual way to land a press system onto a pump, valve, or piece of equipment.
2) Does the Viega 79740 press onto 1 inch copper tube or 1 inch iron pipe?
The press end takes 1 inch copper tube. Press sockets are sized to copper tube outside diameter, so nominal 1 inch copper drops straight in. The threaded end is where you meet 1 inch iron pipe, and that connection is threaded, not pressed.
3) Is the Viega 79740 union bronze and safe for potable water lines?
It is made of zero lead bronze, which is what puts it on potable water service alongside copper tube. The bronze body also holds up better than plain copper at a threaded connection that gets wrenched on during service work.
4) What does Smart Connect do on a Viega ProPress union, and does it mean I can skip pressure testing?
Smart Connect is the unpressed-joint feature on the 79740. If a connection is left unpressed, it leaks visibly during the pressure test so the installer finds it before the wall closes up. It is a way to catch a missed crimp, not a replacement for pressure testing the system.
5) How much clearance do I need to fit the Viega 79740 1 inch press union in a tight chase?
The fitting itself measures 1.811 inches high, 1.693 inches long and 2.047 inches wide, and weighs 0.901 lbs. The bigger constraint in a chase is the press tool jaw, not the fitting, so plan clearance around the 1 inch jaw swing rather than the body dimensions.
6) How do I order the right Viega press union - what is the part number for the 1 inch press by 1 inch male thread?
Order Viega 79740. That number covers the 1 inch press by 1 inch MPT zero lead bronze union with Smart Connect. It is a single configuration, so there is no separate finish or seal option to specify.
How fast can I get the Viega 79740 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
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 79740 come with a warranty?
Absolutely. The Viega 79740 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 79740?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Viega 79740 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.