ISO-BF rotatable bolt ring feature a bore for standard inch tube and piping diameters, ISO-MF Stainless Steel retaining rings are used to retain ISO-MF vacuum flange rotatable bolt rings.
Retain rotatable bolt rings
Stainless Steel construction
NW63 to NW500 flange sizes



Understanding ISO-K vs ISO-F Vacuum Flanges
How KF Flanges Achieve Vacuum Sealing
KF Fittings: Elbows, Tees, Crosses Explained
Eco‑Friendly KF Seals: Viton vs Silicone
Rich stock, fast delivery
Quick response within 24h
Quality assurance
Accessory replacement
GET A QUOTE