Eldon James Natural Materials Quick Reference

(Protected) (AG)

Antimicrobial protected Ag fittings are available in Nylon, Kynar®, Polypropylene and HDPE. These fittings incorporate natural silver ion protection to guard against microbial colonization and biofilm formation on their surfaces. Kynar® Ag fittings (AGNK) are autoclavable.

Natural Kynar® (NK)

Temperature Range -80 °F to 226 °F • Pressure 260 psi @ 70 °F. NK material can be autoclaved to 285 °F (140 °C) and meets USP Class VI requirements. Generally, chemically resistant to: most acids, salts, weak bases, halogenated solvents, alcohols, nuclear and UV radiation, oxidants, ozone and deionized water.

CrystalVu™ (CVU)

CrystalVu™ (polyolefin): A clear transparent alternative to polycarbonate containing no Bisphenol-A (BPA) - will not deform at temperatures to 180 °C (356 °F). Autoclavable - enhanced characteristics compared with polycarbonate include: superior chemical resistance; no crazing with multiple autoclave cycles plus gamma and EtO Sterilization compatibility - USP Class VI, EU 2002/72/EC.

High Density Polyethylene (HDPE)

HDPE complies with FDA 21 CFR 177.1520 when used unmodified for the manufacture of food contact articles. HDPE has various applications for use in medical products and devices. It has excellent resistance to chemicals, but exhibits lower thermal resistance than other materials. It is a softer material than nylon or polypropylene and much softer than Kynar®.

Nylon - Natural (NN) Medical (MN)

Temperature Range -50 °F to 275 °F (135 °C) • Pressure 125 psi @ 70 °F6/6 Nylons exhibit good tensile strength, moderate stiffness and high impact resistance. They're resistant to fuels, lubricants and many chemicals, but vulnerable to attack by phenols, strong acids and oxidizing agents. MN White Medical Nylon is made from the same resin as Natural Nylon, but has an FDA compliant white colorant added.

Animal Derivative Free Polypropylene (PP)

A polypropylene formulated for biomedical and bioprocess applications. Temperature Range -9 °F to 150°F (66 °C) • Pressure 125 psi @ 70 °F. Meets FDA requirements 21 CFR 177.1520(a)(3)(i) and (c)3.1a. PP material has a Drug Master File listing. It is radiation stable and is resistant to solvents, chemicals, water and other inorganic environments. It resists most strong mineral acids and bases; however, it is subject to attack by oxidizing agents.

Black Nylon (BN)

Temperature Range -50 °F to 275 °F (135 °C) • Pressure 150 psi @ 70 °F
Made from 6/6 nylon - exhibits strength, moderate stiffness, high service temperature, high impact resistance and tensile strength. Resistant to fuels, lubricants and many chemicals, but vulnerable to attack by phenols, strong acids and oxidizing agents. Used in fuel line, vacuum systems and general purpose applications: automotive industry approvals.

Glass-Filled Black Nylon (GFBN)

Temperature Range -50 °F to 275 °F (135 °C) • Pressure 150 psi @ 70 °F Heat Deflection Temperature - ASTM D64: 475 °F (246 °C) @ 264 psi
GFBN is a standard material used in automotive and marine under-the-hood, heater and coolant applications. GFBN's enhanced impact resistance results from inclusion of uniformly dispersed glass fibers that add strength to the resin: automotive industry approvals.

Stainless Steel (SS)

Fittings produced with 316L alloy perform well in high temperature, harsh physical environments. 316L molybdenum bearing stainless steel has excellent impact and chemical resistance, but is less resistant than other types of stainless steel to highly oxidizing acids, such as nitric acid. The material has wide application in pharmaceutical and dairy processing and is used extensively in brewery, beverage and bioprocess industries.

White Polypropylene (WP)

Temperature Range -9 °F to 150 °F (66 °C) • Pressure 125 psi @ 70 °F
White Polypropylene has the same physical and chemical resistance properties as Natural Polypropylene, but is less expensive. WP fittings contain recycled runner material produced during virgin material, Natural Polypropylene production runs. White Polypropylene fittings are manufactured to the same tolerances and quality standards as our Natural Polypropylene fittings - WP is not a USP Class VI material and is not lot traceable.

• RoHS Compliant

White Nylon (WN)

Temperature Range -50 °F to 275 °F (135 °C) • Pressure 125 psi @ 70 °F
White Nylon has the same chemical and physical properties as Natural Nylon. W fittings contain recycled runner material produced during virgin material, Natural Nylon production runs. White Nylon fittings are manufactured to the same tolerances and quality standards as our Natural Nylon fittings. Lot traceability certificates are not available for White Nylon.

• RoHS Compliant

Gray Kynar (PVDF)

Temperature Range -80 °F to 226 °F (108 °C) • Pressure 260 psi @ 70 °F
Gray PVDF fittings exhibit the same physical and chemical resistance properties as Natural Kynar®. PVDF fittings contain recycled runner material produced during virgin material, Natural Kynar® production runs. For applications that do not require lot traceability or a material that meets USP Class VI requirements, PVDF fittings represent an excellent value.

• RoHS Compliant

Lot Traceability Material Certificates are available for products made from resins listed on this page. Please request certificates at the time an order is placed.