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* UPDATED 12/13/18 *

Delayed Opening

Due to inclement weather, Valcor will be opening at 9:00AM on Thursday, December 13th, 2018

Valcor Exhibits at AUG/MUG 2019

Posted on Jan 23, 2019 in Events, News & Events |

Published on: January 23, 2019 By: Valcor Nuclear Valcor Engineering’s Nuclear Group recently exhibited at the AUG/MUG 2019 Joint Conference, which was held January 14-17 in Palm Desert, California at the JW Marriott. This conference was a joint meeting of the Air-Operated Valve Users’ Group (AUG) and the Motor-Operated Valve Users’ Group (MUG). About AUG/MUG AUG is dedicated to the development and exchange of technical information concerning the performance, design, testing, and maintenance of air-operated valves, compressed air systems, and fluid leak management programs. The focus of the AUG portion of the conference was geared toward improving efficiency, equipment reliability, and safety in industries such as power generation, chemical, oil & gas, naval, and other industrial process control applications. MUG is a group of member nuclear utility representatives formed for the exchange of technical information relating to the testing and maintenance of motor-operated valves among the utilities and in coordination with other organizations within the nuclear industry or the increased reliability and safety of nuclear...

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Valcor Exhibits at POWER-GEN International 2018

Posted on Dec 19, 2018 in Events, News & Events |

Published on: December 19, 2018 By: Valcor Nuclear Valcor’s Nuclear Group has recently returned from exhibiting at POWER-GEN INTERNATIONAL, which was held in Orlando at the Orange County Convention Center from December 4-6, 2018. Celebrating 30 years, POWER-GEN International had attendees from 108 countries and over 900 companies exhibiting. It is the world’s largest power generation event and focused on providing comprehensive coverage of the trends, technologies and issues facing the generation sector, with key emphasis on new solutions and innovations for the future. This year’s meeting and exhibition was a great opportunity to discuss in-person all the high quality flow control devices we can supply to the nuclear power industry, including the fact that Valcor is now the exclusive producer of all components formerly made by CU Services. These products include plug resistant orifices to drain steam and condensate lines in power and process plants, diffusers for high pressure drop service, diffuser silencers for high pressure service as well as multistage let-down...

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Valcor Exhibits at MD&M Minneapolis 2018

Posted on Nov 7, 2018 in Events, News & Events |

Published on: November 7, 2018 By: Valcor Scientific Valcor Engineering’s Scientific Group recently exhibited at the Medical Design & Manufacturing (MD&M) Minneapolis Exposition, held October 31-November 1 at the Minneapolis Convention Center. MD&M Minneapolis is the Midwest’s largest medtech event! The Expo showcases a total of 500+ exhibitors across plastics, packaging, design engineering, automation and embedded...

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Valcor Exhibits at NBAA 2018

Posted on Oct 23, 2018 in Events, News & Events |

Published on: October 22, 2018 By: Valcor Aircraft Valcor has recently returned from exhibiting at the National Business Aviation Association Conference (NBAA) in Orlando, FL. The event took place at the Orange County Convention Center from October 16-18. This trade show brings together current and prospective aircraft owners, manufacturers, and customers into one meeting place. It has over 25,000 industry professionals in attendance from all 50 U.S. states and about 90 countries, and is ranked as the third largest trade show in the United States. There were about 1,000 exhibitors from the U.S. and around the...

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ULA Successfully Launches NASA’s Parker Solar Probe Spacecraft

Posted on Aug 15, 2018 in Events, News & Events |

Published on: August 14, 2018 By: Valcor Aerospace Congratulations to United Launch Alliance (ULA) on their successful launch! On August 12th at 3:31 a.m., a ULA DeltaIV Heavy rocket carrying NASA’s Parker Solar Probe spacecraft lifted off. The spacecraft will orbit directly through the corona of the sun collecting and sending data back to Earth. We are so proud to work with ULA and have our products involved in this mission. For more information on this launch, visit: https://www.ulalaunch.com/about/news/2018/08/12/united-launch-alliance-successfully-launches-nasa-s-parker-solar-probe-spacecraft Photo Credit:...

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White Paper: The Use of a Flow Limiter in Propellant Feedlines During A Priming Event

Posted on Aug 9, 2018 in News & Events, White Papers |

Published on: August 8, 2018 By: Valcor Aerospace The Use of a Flow Limiter in Propellant Feedlines During A Priming Event Vitor Cardoso – Assistant Chief Engineer, Aerospace Products Richard Kelly – Senior Project Engineer, Aerospace Products Yuri Gerasimov – Chief Engineer, Aerospace Products Merritt D’Elia – Design Engineer, Aerospace Products Sumeet Kapur – Design Engineer, Aerospace Products Eli Vasquez – Design Engineer, Aerospace Products Tim Monahan – Design Engineer, Aerospace Products Abstract High pressure spikes typically occur within propellant feedlines during a priming event. Such an event occurs when a pyro valve, or latch valve opens, allowing liquid propellant to fill the downstream lines, which are at vacuum conditions. These spikes are the result of high velocity propellant flowing into a dead-ended line (closed valve). The impact of the column of liquid propellant hitting the closed valve creates a compression wave, also referred to as “Water Hammer”. This priming event is a well known phenomenon that has been much studied and analyzed. Pressure spikes may be reduced if a blanket of low pressure gas is intentionally trapped within the lines. The drawback to this approach is that the compression of the gas may create significant heat due to adiabatic compression. This may lead to detonation of the propellant. Another solution is to install a fixed flow restriction in the line, which will decrease the liquid impact velocity, thus reducing the water hammer. The drawback to this approach is that the system will suffer from a pressure loss during normal flow usage. This paper will discuss a new approach, which will be to install a flow limiter in the propellant line. Such a device would sense an abnormally high flow, and close a poppet so that the orifice size is reduced. This would limit the flow velocity, thus reducing the pressure surge. The poppet would then return to its full open position during nominal flow, thus not producing any excess pressure drop during normal operation. The pressure and velocity during a priming event, with the proposed flow limiting device, will be calculated using well established numerical methods. These results will be compared to similar analysis results for priming events for systems which use fixed restrictions and no restrictions. It will be shown that the use of a flow limiter is a very attractive option. Introduction During the priming of a spacecraft propulsion system, the filling of an evacuated pipeline can generate severe waterhammer spikes due to the column of liquid impacting a closed thruster valve. A severe example of this occurred on the Compton Gamma Ray Observatory, on April 7, 19911. During this mission fluid components downstream were damaged during the priming event. Once in orbit an isolation valve...

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