Ohno Bellows

Ohno Bellows Industry Co., Ltd. is a Japanese bellows and bellows-sealed valve manufacturer whose origins date to February 1927, when the director of its predecessor produced Japan's first bellows and obtained a patent. For nearly a century the company has advanced seamless bellows technology, manufacturing its own bellows and valves in Japan, with all critical processes performed at its Iwaki factory.

The product catalog covers ball valves, forged and cast steel bellows valves, diaphragm valves and brass and bronze bellows seal valves. Serving fields that demand zero leakage, the valves keep impurities out in semiconductor, liquid crystal, food processing and vacuum applications and prevent outward leakage in nuclear power, petrochemical and heavy electrical industries. Individual serial numbers enable full traceability and repair of valves even decades after delivery, and custom valve manufacturing is available.