Owing to the recent ageing and decreasing birth rate, providing nursing care to the elderly has become very crucial. As a result, it is necessary to develop wearable systems to aid in nursing care. To realise such a system, we require not only wearable soft actuators, but also a compact and flexible control valve. The purpose of our study is to develop a flexible, lightweight and compact control valve which can be safely attached to the human body. In this study, we proposed and tested a new type of control valve that consists of a vibration motor and a check valve. By giving continuous vibration, the valve can be kept open. As a result, we find that the valve can control a larger flow rate relative to its weight and size. We also apply the control device to a wearable actuator in the form of a McKibben artificial muscle.
- Inderscience Publishers
- Development of small-sized flexible pneumatic valve using ...
WaStop Inline Check Valve protects Hull from Flooding - Case Study
Location: Hull, United Kingdom Client: The Environmental Agency, Hull City Council & Associated British Ports Problem: In December 2013 a storm surge caused water to over top the existing flood defence along the Humber frontage and on the Albert dock causing flooding and widespread damage. Once the water had over topped the flood defences it filled the dock and was then able to run downhill and enter the surrounding industrial and residential areas. One of the biggest victims of the flooding was Smith &...
WaStop Access protects residents in Lewiston NY, USA - Case Study
Location: Lewiston New York, USA Client: City of Lewiston Problem: The effect of combined sewers (combined wastewater and storm water) and an area prone to flooding from the Niagara River, a section of Upper Mountain Rd in Lewiston New York have experienced repeated flooded basements. On a visit with Jeffery Ritter of the City of Lewiston, Bob Wiltshire of Koester Associates discussed the applications for and advantages of the WaStop in line elastomeric check valve in preventing back flows and flooding. Jeff...
Xinhai Statement of the Implement Valve Standards
Following are the design, manufacture and inspection standards of our company. Check Valve: API 6D 24th Specification for Pipeline and Piping valves BS 1868-1975(R1990) Specification for Check Valves (Flanged and Butt-welding Ends) for the Petroleum, Petrochemical and Allied IndustriesEN14341-2006 Industrial valves —Steel Check Valves Gate Valve: API 600 13th Steel Gate Valves-Flanged and Butt welding Ends, Bolted BonnetsEN1984-2000 Industrial valves --Steel Gate Valves Ball Valve: API 6D 24th Specification...
Learining how to Choose Materials for Gas Valves
The materials and the quality of gas valves are so important that their disqualification will lead to leakage in-or-outside the body of the valve. If the strength, rigidity and overall performance of the components of the valve body cannot meet the requirements or even break, it will result in the spillage of gas and explosion. Therefore, material and quality are the most critical part during the process of developing, designing, and studying gas valves.How to choose materials for Gas Valves: Mainly worked as...
Valves in Water System of Heating Air Condition
Common valves in water system of heating air condition include gate valve, globe valve and butterfly valve.Gate valeFor its moderate length, rotary adjusting rod and good regulating performance, gate valve is widely utilized in large caliber pipes.Globe valve Globe valve is suitable for small caliber pipes for its long length, rotary adjusting rod and good regulating performance (DN≤150mm).Butterfly valveButterfly valve has short length, handle regulating rod, bad regulating performance and high price. But it...