Flow Data

Check-All Valve Seat Material Pressure-Temperature Ratings

The temperature ranges given below are for ideal conditions and may vary with a specific application or service. Metal to metal seats and TEFLON^® resin seats are not “bubble tight”. See Application Guidelines or consult the factory for further information.

Seat Maximum Temperature
Material Pressure Range

Metal to metal same as body same as body

AFLAS^® 1500 PSI -20^oF to 400^oF

Buna-N 1500 PSI -65^oF to 250^oF

EPR/EPDM 1500 PSI -70^oF to 300^oF

KALREZ^® 1500 PSI 0^oF to 500^oF

Neoprene 1500 PSI -65^oF to 260^oF

TEFLON^® resin 1500 PSI -320^oF to 400^oF

VITON^® 1500 PSI -10^oF to 400^oF

Other o-ring compounds are available. Please contact sales@flw.com for more information.

Check-All Valve Spring Material Temperature Ratings

Spring Material	Temperature Range
316 Stainless Steel	-320^oF to 400^oF
17-7 PH Stainless Steel	20^oF to 400^oF
HASTELLOY^®C	-320^oF to 400^oF
HASTELLOY^®B	-320^oF to 400^oF
MONEL^®	-320^oF to 400^oF
INCONEL^® X-750	-320^oF to 700^oF
INCONEL^®X-750 (low stress)	-320^oF to 1250^oF

Check-All Valve also offers TEFLON^® resin Encapsulated springs, which are springs, incased in heat shrinkable TEFLON^® resin tubing. The ends of the tubing are plugged with TEFLON^® resin and sealed. Small size springs and higher cracking pressure springs cannot be TEFLON^® resin Encapsulated. TEFLON^® resin Encapsulated springs may reduce flow capacity.

Information/Quotations/Assistance

Check-All Valve Seat Material Pressure-Temperature Ratings

Check-All Valve Spring Material Temperature Ratings

Spring Material

Temperature Range