Brochure

FLOW MANAGEMENT
TECHNICAL DATA & INSTALLATION
Technical Data
NDS requires that the local and state plumb ing codes be reviewed and understood prior to installing
any of NDS Flow Management's products. These codes will provide proper installation procedures.
1. PVC Material Specification PVC Type I, Grade I, Cell Class 12454-B meeting requirements of ASTM D-1784-03 is used in the
manufacturing of all fittings recommended for use of potable cold water (see chart C for temperature vs. pressure on page 165).
Not recommended for use on systems exceeding 100 psi at 120 degrees F.
2. PVC Material Specification PVC Type II, Cell Class NSF14333 of ASTM D-1784 is used in manufacturing of fittings that require
more chemical, heat, and impact resistance than PVC I.
3. CPVC Material Specification CPVC Type IV, Grade I, Cell Class 23447-B meeting requirements of ASTM D-1784-03 is used
in the manufacturing of all fittings recommended for use on potable Hot Water Systems in accordance with ASTM D-2846-73. Not
recommended for use on systems that will exceed 100 psi at 180 degrees F.
4. Buna-N Seals are in accordance with ASTM D-2000. It is generally resistant to many hydrocarbons, fats, oils, greases, hydraulic
fluids and chemicals. It is generally attacked by Ozone, Ketones, Esters, Aldehydes, chlorinated and nitro hydrocarbons. Reference
chemical resistance under NBR (Nitrile) Elastomers for specific listings.
5. EPDM O-Rings This o-ring material is made of high-quality EPDM (Ethylene Propylene Copolymer) which is in accordance with
ASTM D-2000. EPDM has exceptionally good weather aging and ozone resistance, excellent water and chemical resistance, and
excellent aging resistance for most applications. EPDM is a polymer where oil and solvent resistance is poor. However, it is fairly good
in ketones and alcohols. Reference chemical resistance under EPDM, EPT, or EPR Elas tomers for specific listings.
6. Viton O-Rings This o-ring material exhibits a broad range of chemical resistance: petroleum oils, silicone, grease, etc. We
recommend you refer to a chemical resistance chart for specific applications. Maximum recommended service temperature is 400° F.
Viton is a registered trademark of DuPont.
7. Double Seal of standard compression fitting. A compressive action is created as the cap is tightened squeezing the Buna-N seals
into the tapered recessed areas of the cap and body. This process creates a highly concentrated pressure at the two “double seal”
points, thus providing positive protection against leakage. (See Figure A on page 166)
8. Acme Thread General purpose 10 pitch and 5 pitch Acme thread on Compression Cap section eliminates the possibility of
cross- threading. This smooth running design pre vents bind ing or galling as is often experienced in standard tapered threads.
9. Springs Series 300 Stainless Steel.
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Product Catalog 2021