Brochure

FLOW MANAGEMENT
(pages 127 - 128)
(pages 129 - 131)
Installation Instructions
NOTE: NDS does not recommend using an FPT (female) PVC fitting with an MPT (male) metal fitting;
ASTM F1498. Unless the female PVC fitting is used with a metal reinforcement ring, it may expand
beyond its strength around a metal fitting, which can result in cracks and leaks.
1. Compression Fittings
Compression cap should be drawn up hand-tight to insure proper alignment and seating of gasket, then tighten 3/4 to 1 turn with a Flo
Spanner Wrench or strap wrench. Average torque should be approximately 25 foot-pounds on 1/2" through 2" IPS, and 35 foot-pounds
on 2-1/2" and larger IPS. Compression fittings are not for use on compressed air lines or natural gas lines. When installing the Standard
Compression Seal fittings the pipe line must be restrained from lateral movement by thorough soil compaction on straight runs and thrust
blocking at change of direction or reduction in size. Not for use on pipe lines suspended on hangers.
2. Pipe Threads
Use teflon tape on all IPS thread connections. IPS thread connection should be made hand-tight plus 1/2 to 3/4 turn with a wrench.
3. Flo-Lock Adapters
For use on polyethylene tube (PE) with wall thickness of SDR-26, Class 160 or greater, PVC pipe, or copper tubing. Not recommended for
use on galvanized pipe unless surface is sanded smooth. (See Figure B)
4. Solvent Welding
NDS requires that all parts that are to be solvent cemented are clean of any and all foreign materials. Solvent cement manufacturers
include installation instructions on the container. It is important to follow correct cementing instructions to avoid problems. Excessive
cement or the incorrect type of cement can cause failures in thermoplastic products.
TECHNICAL DATA & INSTALLATION
166
Product Catalog 2021