Collection: Threaded Fasteners

Check-All® F1 Style Flange Insert Check Valve - 1" NPS, 1.50 psi Cracking Pressure

F6 Style Flange Insert Check Valve - 1-1/4" NPS, 1.50 psi Cracking Pressure - Check-All

Check-All® F1 Style Flange Insert Check Valve - 2-1/2in, 1.50 psi Standard Cracking Pressure

FP Style 1" Flange Insert Check Valve - 0.500 psi Cracking Pressure

Check-All® FP Style Flange Insert Check Valve - 1 inch NPS, 3.50 psi CPCP, 316 SS Spring

Check-All® F6 Style Flange Insert Check Valve - 3" NPS, 0.125 psi Cracking Pressure

Check-All® 1.5" FP Style Flange Insert Check Valve

Check-All F6 Flange Insert Check Valve - 4-Inch, 0.125 PSI Cracking Pressure

8" F1 Style Flange Insert Check Valve, 0.500 psi Cracking Pressure

1/2" F1 Style Flange Insert Check Valve with 1.50 psi Cracking Pressure

2 Inch F1 Style Flange Insert Check Valve with 0.500 psi Cracking Pressure

16 Inch Flange Insert Check Valve - F1 Style, 0.5 PSI Cracking Pressure

Check-All® FP Style Flange Insert Check Valve - 1/2" NPS, 3.50 psi Cracking Pressure

14" Flange Insert Check Valve with 0.500 psi Cracking Pressure - F1 Style

4" Flange Insert Check Valve - F1 Style, 0.500 psi Cracking Pressure

4 Inch FP Style Flange Insert Check Valve - 1.50 psi Cracking Pressure