Single-Spring Actuator

AoTu-D2 Series pneumatic diaphragm actuators are designed to perform long strokes, usually covered by cylinder-operated actuators.

They are manufactured by OTEKER to suitably operate control valves both for throttling and on-off service.

The thrust is supplied by a rubber, air-Ioaded diaphragm and, in the opposite direction, by an helical spring.

Standard model can be delivered either as a direct-acting actuator (model 1-D21) or, replacing a minimal number of parts, as a reverse-acting actuator (model 1-D22).

Two actuator sizes are available: D46 and D63.

Special version double effect spring return D63 size is available for more critical applications.

Founded in 2008 as a innovative company, kinghonest industries LTD is a high-tech enterprise, developing and producing high-performance nanoporous thermal insulation materials, such as nanoporous thermal insulation blanket, slab and powder, which provide supeb thermal insulation performance and excellent durability under different tough environment. UniNano has proven experiences on various thermal insulation solutions in different fields of industry, such as petrochemical, energy, building and construction, ship, high speed railway, military, metallurgy, fire control and cryogenic storage, etc.

UniNano is ISO9001 certified, accompanying by other honors from National, Provincial and Municipal scientific research projects to vendor warranties from state-owned in China and Fortune 500 enterprises.

Social Commitment

For the past 100 years, chemistry and material science have brought people great convenience in almost all aspects of human's daily life. However, severe environment contamination has also been caused as by-product by the mushroom industrial development, jeopardizing water, soil, air quality. Energy shortage and environment protection have become a severe issue globally.

Being a new-born innovative company, UniNano is dedicated to lowering carbon emission during manufacturing process and offering energy conservation solution. To set an energy-saving and environmental example in developing series of thermal insulation materials, UniNano will spare no efforts to provide our customers continuously with efficient, effective and eco-friendly solutions.

R&D Center

The R&D center is located in Minhang District, Shanghai, China, dedicating to the development of new nano technology and relevant applications.