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 ...
American Standard Sanitary Check Valve Technical Parameters
1. Bolt connection Body bonnet connection executive standard: ANSI B 1.1 Nut manufacturing executive standard: ANSI B 18.2.2 2 valve cover The bonnet material is the same as the body material. It can be forged or cast. 3. Pin The pin is used as a lifting function, but for larger valves, a bolted flange is used instead of the pin. 4. Rocker arm The rocker arm material is the same as the body material. 5. Seat Seat is welded or screwed on the valve body. Its surface is ground and heat treated to adjust the hardness,...
Introduction of Check Valve
With the continuous improvement of high-tech development, valve conditions are also getting higher and higher. New valve products continue to enter the market, the upgrade of drive mode, changes of structures as well as temperature and pressure corrosion on the material requirements of the check valve, have improved respectively. Check valve relies on the flow of the medium itself to automatically open and close the valve flap. Check valve is an automatic valve, its main role is to prevent media backflow and the...
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...