Split Flanges & Captive Flanges per ISO 6162 / SAE J518
Split Flange Adapters
Butt weld & Socket weld
O-ring straight thread per SAE J1926
O-ring face seal thread per SAE J1453
Metric O-ring straight thread per ISO 6149
NPTF, BSPP, BSPT threads
SAE 4-Bolt Welded Ports (for Pipe & Tube in U.S. Standard &
Metric Sizes)
Butt weld / Butt tig weld
Socket weld (deep & flat)
SAE 4-Bolt Threaded Ports
O-ring straight thread per SAE J1926
O-ring face seal thread per SAE J1453
Metric O-ring straight thread per ISO 6149
NPTF, BSPP, BSPT threads
Square 4-Bolt Welded Ports (for Pipe & Tube in U.S. Standard &
Metric Sizes)
Socket weld
Butt weld / Butt tig weld
Square 4-Bolt Threaded Ports
O-ring straight thread per SAE J1926
O-ring face seal thread per SAE J1453
Metric O-ring straight thread per ISO 6149
NPTF, BSPP, BSPT threads
DIN, JIS & Custom Designed
All of our 4-bolt flanges & split flange adapter fittings are
available in straight & 90 degree configurations, in both forged
carbon steel & AISI 316L stainless steel. Test port flanges are
available as standard items, or test ports can be added to virtually
any item within our product line. Customized packaging is available
according to customer specification. All items are available with
mounting hardware (UNC or metric).