Intermediate Flange Shut-Off Valve BARI -ring form (wafer type) -to be mounted between flanges PN6 / PN10 / PN16 -leak-proof according to DIN 3230 -housing: aluminium -valve plate: to chose 1.4301 or St 37 -shaft: to chose 1.4301 or St 37 -sealing: optionally NBR white or black