Compression fittings are an excellent choice to connect rigid tubing systems and withstand higher pressures than barbed fittings. Assemble the fitting to the tubing by sliding the tubing through a sealing ferrule and using the nut to compress down to form a secure seal.

Note: Pressure ratings given are for smaller tubing ODs at 77°F (25°C). Ratings decrease with increases in tubing OD or temperature.

Brass. Good chemical resistance; rated to 400 psi. Temp range: –85 to 482°F (–65 to 250°C). Include brass ferrules; UL-listed for use with flammable liquids; meet
ASA, ASME, and SAE (J512) standards.

PharmaFluor™ PFA. Superior chemical resistance; rated to 135 psi. Temp range: 32 to 248°F (0 to 120°C). Include PFA ferrules and Tefzel® nuts. Made from electronic-grade
resin. Sterilize by either ethylene oxide or autoclave.

PharmaFluor™ PTFE. Superior chemical resistance; rated to 105 psi. Temp range: –450 to 300°F (–268 to 149°C). Include PCTFE nuts and Elast-O-Fluor® seals. Sterilize by either ethylene oxide or autoclave

PVDF. Excellent chemical resistance; rated to 220 psi. Temp range: –20 to 275°F (–29 to 135°C). Include plastic grippers. Sterilize by ethylene oxide or autoclave.

Nylon. Good chemical resistance. Temp range: –50 to 250°F (–46 to 121°C). Sterilize by ethylene oxide only.

PFA. Superior chemical resistance; rated to 150 psi (40 psi without grooving tool). Temp range: up to 347°F (175°C). Include built-in ferrules. Sterilize by either ethylene oxide or autoclave.

Polypropylene (PP). Very good chemical resistance. Black: Rated to 300 psi. Temp range: 0 to 212°F (–17 to 100°C). With SS gripping rings. Sterilize by autoclave.

White: Rated to 220 psi. Temp range: 32 to 212°F (0 to 100°C). With plastic grippers. Sterilize by ethylene oxide.

Stainless steel (316 SS). Very good chemical resistance; pressure limit depends on the tubing used, not the fitting. Temp range: –40 to 200°F (–40 to 93°C). Include ferrules.
Sterilize by either ethylene oxide, autoclave, or gamma irradiation.