NIBCO Test Cap: 1/2 in CTS, Cup, Wrot Copper (MPN 917B 1/2)
SKU 3G-OTH-473631
Need installation or engineering help?
Ask a question
Frequently Asked Questions
What is a NIBCO test cap used for?
A NIBCO test cap seals copper tubing during pressure testing of drain, waste, and vent systems. It is a cup-style, wrot copper fitting for 1/2 in CTS pipe, ensuring leak-free verification before system commissioning.
What are the specifications of the NIBCO 917B 1/2 test cap?
The NIBCO 917B 1/2 is a cup-style, wrot copper test cap for 1/2 in CTS (copper tube size). It is part of NIBCO's drain, waste, and vent fittings line, designed for temporary sealing during hydrostatic or air pressure tests.
Where to buy NIBCO test caps worldwide?
3G Electric supplies NIBCO test caps worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine NIBCO fittings to your site. Contact us for pricing and lead time.
How to install a NIBCO wrot copper test cap?
Clean the copper tube end and apply flux. Solder the NIBCO test cap using lead-free solder per local code. After testing, remove the cap by heating the joint. Always follow standard copper soldering practices for reliable seals.
Used in
Common applications for NIBCONIBCO Products
3G Electric supplies NIBCO drain, waste & vent wrot copper & bronze tube fittings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









