Pfeiffer diaphragm and Becker pumps come with G BSPP intake and exhaust thread ports. The MVP 015-2 has both intake and exhaust in 1/8 Inch G while inlet only for the MVP 020-3AC & MVP 020-3DC vacuum pumps. This thread size is primarily used in Europe and Great Britain. This adapter converts "G" BSPP thread to a KF 16 flange which is more commonly used in the universal world wide vacuum market.

BSPP = British Standard Pipe Parallel (straight thread) and is often noted G, for example, G(1/2).

BSPT = British Standard Pipe Taper (tapered threads).

These New Pfeiffer KF16 adapters screw into pump inlet and or exhaust for easy connection to standard ISO KF or NW roughing line fittings.