Over many years, choke valves at the wellheads have been used in oil and gas production for safety and control purposes (Buffa and Baliño, 2017). In addition to this, because the pressure drop over the choke depends on the flowrate, the choke valve can be used to estimate the flow....
(e.g., a manufacturer's device description), making REST -- which utilizes the internet's HTTP -- a natural fit. Thirdly, on the IoT, compact formats based on JSON, EXI and CBOR (Concise Binary Object Representation -- a JSON offshoot) are used. RESTful APIs are likewise compact, ...
Dual fuel engine which utilizes valve lubricant as a pilot fuelMartin L WilliMin WuJeffrey T Fischer
with a working volume of 1.8 L (liquid volume 1.2 L), operated as an up-flow biofilm system, as described by Ňancucheo and Johnson [21] (Fig. 1). The reactor was connected to a Biostat C unit (B. Braun Biotech International GmbH, Germany) to control the pH and liquid level. ...
B2B partnerships can often span international boundaries, which make international standards agreements critical. For example, most countries have adopted 13.56 MHz for HF RFID systems. However, Europe currently utilizes 869 MHz for UHF while the United States uses 915 MHz. Japan, on the other hand...
This solenoid controlled, 2-way, 2-position cartridge is a pilot-operated, poppet style directional valve with reverse free flow check. It is available in either a normally open or normally closed configuration. Due to its poppet style construction, it has extremely low leakage. The solenoid tub...
It is what makes the valve open and close when an electrical signal is transmitted to it by the irrigation controller. The solenoid is actually a electro-magnet that operates a plunger, which serves as a pilot valve, but that is not important for what we want to do here. It is normal ...
A pilot operated flow modulating control valve with a pilot valve to incrementally control the position of the control valve and flow. The control valve has a closure valve for blocking flow through the valve an
A solenoid for a pilot operated water valve having reduced copper and increased thermal efficiency is provided. The solenoid utilizes smaller gauge copper wire for the coil, and reconfigures the coil to a shorter, fatter mechanical design than prior solenoids. Despite the focus of reducing material...
Some solenoid valves use a control bypass which utilizes the water pressure to assist in closing the valve. All solenoid valves have a valve seat and some type of closure member which opens or closes the valve seat to start and stop flow. The control bypass and the valve seat must be ...