Submittal Sheet

Viega... The global leader in plumbing and heating systems.
301 N. Main, 9th Floor • Wichita, KS 67202 • Ph: 800-976-9819 • Fax: [phone] • E-Mail: [e-mail] • www.viega.com
ES-PFNGVP 1210
6 of 7
Engineering
Specifications
3.4.4 PEX Press Connections: Bronze PEX Press fittings shall be made in
accordance with the manufacturer’s installation instructions. The Stainless
press sleeve shall be placed over the end of the squared off PEX tubing
while fully inserting the fitting barb into the tubing. Full tubing insertion
shall be verified by a visual confirmation of PEX being present through the
view holes before engaging a press connection. The PEX Press connection
shall be made with a Viega supplied ratcheting PEX Press hand tool or
PEX Press power tool.
3.4.5 PEX Crimp Connections: PEX Crimp fittings shall be made in accordance
with the manufacturer’s installation instructions. The copper crimp ring shall
be placed over the end of the squared off PEX tubing then the PEX Crimp
fitting fully inserted into the tubing. Position the crimp ring 1/8" to 1/4" from
the end of the tubing before engaging a crimp connection. The PEX Crimp
connection shall be made with a Viega supplied full circle crimp tool
or equivalent.
3.4.6 Threaded Joints: Threaded joints shall have a potable water listed joint
sealant tape applied to the male threads only. Tighten joint
with a wrench and backup wrench as required.
3.4.7 PEX Tubing Protection: Protect PEX tubing from exposure to direct and
indirect sunlight exposure. PEX tubing shall be stored under cover,
shielded from direct and indirect sunlight when material is stored for any
length of time.
3.4.8 Penetration Protection: Provide allowance for thermal expansion and
contraction of PEX tubing passing through a wall, floor, ceiling or partition
by wrapping with pipe insulation, or by installing through an appropriately
sized sleeve. Penetrations of fire resistance rated assemblies shall maintain
the rating of the assembly.
3.4.9 Backfill Material: Back fill material must be free of large rocks, glass, or other
sharp objects which can damage the PEX tubing.
3.4.10 Horizontal Support: PEX tubing must be supported every 32" horizontally
with Viega approved suspension clips or plastic insulators.
3.4.11 Vertical Support: PEX tubing must be supported at each floor or ceiling
penetration and every four feet in between.