This is a new design series in which all pump types are installation compatible with previous designs. Note, however, that there is no longer compatibility for some of the seal components between the IPH-3 and IPH-4 sizes and design numbers 10 and 12.

Features
A patented axial and radial pressure loading system provides high efficiency and generates pressures up to 30MPa {306kgf/cm2}.

Outstanding durability and very long life.

A modified involute short-tooth gear enables internal gearing for greatly reduced pulsation and noise, and exceptionally quiet operation.

A simple structure makes maintenance and inspection easier.

IPH-2B Series INTERNAL GEAR PUMP
NACHI IPH-2B-3.5-11
NACHI IPH-2B-5-11
NACHI IPH-2B-6.5-11
NACHI IPH-2B-8-11

IPH-3B Series INTERNAL GEAR PUMP
NACHI IPH-3B-10-20
NACHI IPH-3B-13-20
NACHI IPH-3B-16-20

IPH-4B Series INTERNAL GEAR PUMP
NACHI IPH-4B-20-20
NACHI IPH-4B-25-20
NACHI IPH-4B-32-20

IPH-5B Series INTERNAL GEAR PUMP
NACHI IPH-5B-40-11
NACHI IPH-5B-50-11
NACHI IPH-5B-64-11

IPH-6B Series INTERNAL GEAR PUMP
NACHI IPH-6B-80-11
NACHI IPH-6B-100-11
NACHI IPH-6B-125-11