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Topic: Pressure vessel

	AEI: January 1996, Pressure Vessel Construction
		In the early 1950s, PWR pressure vessels large enough for a submarine plant were within the capabilities of the existing manufacturing infrastructure, but vessels large enough for electrical power generating stations were not.
		Unlike water, however, which is kept under extreme pressure in a reactor to prevent it from changing phase, carbon dioxide is kept under pressure in a reactor to improve its ability to remove heat by increasing its density.
		Pressurized water reactors, because of their extremely high pressures and the safety implications of a failure to maintain that pressure, use a core container that is very difficult and expensive to build.
	www.atomicinsights.com /jan96/vessel.html (897 words)

	Boiler and Pressure Vessel Safety Inspection - Safety Inspections
		The Safety Inspection Boiler and Pressure Vessel unit is responsible for the inspection of boilers and pressure vessels used in commercial establishments, places of public gathering, and apartment buildings with six or more units.
		This responsibility involves ensuring the safe operation of those boilers and pressure vessels by performing periodic inspections and by close monitoring of all repair work.
		The law requires that boilers and pressure vessels be inspected annually or bi-annually depending on the type of equipment.
	www.dllr.state.md.us /labor/boil.html (502 words)

	The Hendrix Group - pressure vessel guidelines
		Only pressure vessels and low pressure storage tanks widely used in process, pulp and paper, petroleum refining, and petrochemical industries and for water treatment systems of boilers and steam generation equipment are covered in this chapter.
		The vessels are usually spherical with wall thickness in the 20 mm to 75 mm (0.8 in to 3 in) range.
		Nearly all of the vessels are ASME Code vessels made using one of the carbon steel grades with typical design conditions of 175 degrees to 180 degrees C (350 degrees to 360 degrees F) and 150 psig.
	www.hghouston.com /pvessel.html (3196 words)

	Pressure Vessels - Pressure Tanks, Water Pressure Tanks, Autoclaves, Kettles, ASME Tanks, Pressure Vessel ... (Site not responding. Last check: 2007-09-10)
		Pressure vessels contain a wide variety of substances used for various industrial applications including the chemical, pharmaceutical, food and beverage, oil and fuel and plastic industries.
		Autoclaves are closed pressure vessels that use steam and high pressure to sterilize instruments.
		Kettles are pressure vessels that use steam to heat fluids.
	www.iqsdirectory.com /pressure-vessels (2361 words)

	pressure vessel permits
		STREAM KETTLE - A pressure vessel that is generally steam jacketed and that is used to heat substances in the liquid state.
		STERILIZER - A pressure vessel that is used to sterilize objects by the application of steam heat under pressure.
		The Pressure Vessel Group must be notified prior to the commencement of any welded repair to a boiler or pressure vessel.
	www.ladbs.org /Permits/pressure_vessel_permit.htm (794 words)

	Pressure vessel testing - Patent 4577487
		Pressure vessels are tested for structural integrity by recording acoustic events generated in the vessel's walls while it is immersed in water and subjected to internal pressure above the vessel's working pressure.
		Large scale users of pressure vessels subject to Department of Transportation test requirements, interested in minimizing the cost of periodic testing, have done a substantial amount of work in an effort to develop tests that can be conducted without immersion in water and without removing the vessels from their carriers.
		Especially in the case of small pressure tanks and tanks that have irregular shape, and particularly when no flaw is suspected, it is often convenient to fix a set of sensors directly to the wall of the vessel to be tested.
	www.freepatentsonline.com /4577487.html (5440 words)

	Thin-Walled Pressure Vessels
		Thin-walled pressure vessels are one of the most typical applications of plane stress.
		Consider a spherical pressure vessel with radius r and wall thickness t subjected to an internal gage pressure p.
		Consider a cylindrical pressure vessel with radius r and wall thickness t subjected to an internal gage pressure p.
	www.efunda.com /formulae/solid_mechanics/mat_mechanics/pressure_vessel.cfm (368 words)

	OSHA TECHNICAL MANUAL - SECTION IV: CHAPTER 3
		The vessels are usually spherical with wall thickness in the 20 mm to 75 mm (0.8 in.
		Nearly all of the vessels are ASME Code vessels made using one of the carbon steel grades with typical design conditions of 175° to 180° C (350° to 360° F) and 150 psig.
		Though the compliance officer is not usually qualified as a pressure vessel inspector, as a summary and a reminder, Appendix IV:3-1 outlines the information, data, and recordkeeping that are necessary, useful, or indicative of safe management of operating vessels and tanks.
	www.osha.gov /dts/osta/otm/otm_iv/otm_iv_3.html (3573 words)

	Pressure Vessel and System Design
		Each welded vessel shall be 100% radiographed or ultrasonically inspected, and all structural welds shall be 100% dye-penetrant or magnetic-particle inspected, as required, to confirm weld quality, depth of weld penetration, and absence of unacceptable voids, cracks, and inclusions.
		If the contained pressure vessel is of ductile material and has been approved by LLNL for a manned-area MAWP of at least the maximum pressure to which it could be subjected inside the containment vessel, the containment vessel shall be designed to an ultimate or burst safety factor of at least 4.
		If the contained pressure vessel has not been LLNL-approved for a manned-area MAWP of at least the maximum pressure to which it is to be subjected inside the containment vessel, the containment vessel for manned-area operation shall be designed to an ultimate or burst safety factor of at least 8.
	www.steelmillsoftheworld.com /products/cs/dishedheads/pres_vessel.htm (8281 words)

	L&I: A-85 - Boiler and Unfired Pressure Vessel Law
		If the boiler or unfired pressure vessel is to be used for a purpose other than that shown on the original registration, the owner or user must reregister the equipment with the department prior to the change of use.
		Repairs and alterations to boilers and unfired pressure vessels shall be made in accordance with the requirements of the most current edition of the National Board Inspection Code (ANSI/NB-23) and performed by a person holding a national board inspection code "R," "VR" or "NR" repair certificate or a certificate of authorization issued by the ASME.
		(4) The boilers or unfired pressure vessels are involved in process operations, of which a knowledge of the process, in addition to that of the construction of the vessels, is required by the inspector.
	www.dli.state.pa.us /landi/CWP/view.asp?a=185&Q=70059 (2727 words)

	PWC Industries - Metal Fabrication, Welding, Pressure Vessels, Holding Tanks, Custom CAD, Metering Systems
		Pressure vessel design and fabrication is a core component of PWC Industries' business.
		Pressure vessels are available in multiple configurations whether for high or low pressure, cooling or heating, or secondary confinement.
		ASME pressure vessel fabrication begins with engineering and design, proceeds to the steel fabrication plant for expert welding and manufacturing, through pressure vessel testing, inspection, and quality control, and onto pressure vessel component assembly.
	www.pwcindustries.com /wiki/PWC/PressureVessels (471 words)

	Boiler and Pressure Vessel Safety Act (Site not responding. Last check: 2007-09-10)
		This Act may be cited as the Boiler and Pressure Vessel Safety Act and, except as otherwise provided, shall apply to fired and unfired steam boilers, hot water boilers, and pressure vessels.
		If the boiler or pressure vessel is not located within the building, the certificate shall be posted in a location convenient to the boiler or pressure vessel inspected or in any place where it will be accessible to interested parties.
		The owner or user of a boiler or pressure vessel required by this Act to be inspected by the Chief Inspector or his Deputy Inspector shall pay directly to the Office of the State Fire Marshal, upon completion of inspection, fees established by the Board.
	www.state.il.us /IEMA/legal/statutes/nucpwr/boiler.htm (2912 words)

	NRC: Fact Sheet on Reactor Pressure Vessel Issues
		Reactor pressure vessels, which contain the nuclear fuel in nuclear power plants, are made of thick steel plates that are welded together.
		Neutrons from the fuel in the reactor irradiate the vessel as the reactor is operated.
		On March 18, 2002, the NRC issued Bulletin 2002-01, “Reactor Pressure Vessel Head Degradation and Reactor Coolant Pressure Boundary Integrity,” to address the generic implications of the degradation at Davis-Besse on the safe operation of PWRs in the U.S. and on the health and safety of the public.
	www.nrc.gov /reading-rm/doc-collections/fact-sheets/prv.html (1518 words)

	[No title]
		Pressure Sciences worked with Process Engineering, Inc., (Plaistow, NH) who was awarded a contract by EGandG Florida, Inc. for the design of a semi-trailer for the transport of the highly hazardous and toxic hypergolic fuel components, nitrogen tetroxide and mono-methyl hydrazine, for NASA.
		The vessel was designed for a maximum allowable working pressure of 1800 psig at 95°F. Because the silicon wafer to be cleaned was large in diameter, but quite thin, the vessel had a 9.25 inch ID, but an internal working length of only 0.25 inch.
		Pressure Sciences was requested to design a silo that was susceptible to dust explosions with a frangible roof, using the techniques of API Standard 620, and to design a silo cone for external pressure due to a dust-explosion between the cone and the support-skirt.
	www.press-sci.com /design.htm (997 words)

	Boilers and Pressure Vessel Safety (Site not responding. Last check: 2007-09-10)
		The Division of Boiler and Pressure Vessel Safety regulates the construction, installation, operation, inspection and repair of boilers and pressure vessels throughout the state of Illinois.
		Due to the potential risks and hazards involved with the usage of boilers and pressure vessels, the Boiler and Pressure Vessel Safety Act was adopted to safeguard the citizens of Illinois.
		Boilers and pressure vessels are used for various applications in all types of locations: schools, hospitals, churches, factories, day care centers, restaurants, dormitories, libraries, municipal buildings, refineries, chemical plants, prisons and many other facilities.
	www.state.il.us /osfm/Boilers/Overview.htm (136 words)

	˜1990 Vermont Boiler and Pressure Vessel Rules (Site not responding. Last check: 2007-09-10)
		When a boiler or pressure vessel repair or alteration, (as defined in Section 4), is necessary, an inspector shall be contacted for the review and approval of the materials to be used, work procedure, welding qualifications, which adopted standards to follow and quality control procedures to be used during the process.
		Should an appliance be repaired during an outage of a boiler or pressure vessel, the repaired appliance shall be reinstalled and in proper working order before the object is again placed in service.
		All high limit pressure and temperature control devices and auxiliary low water cut off control devices required by these rules for new installations or when these control devices are replaced shall be of the manual reset type.
	www.dps.state.vt.us /fire/boilerrules_print.htm (7088 words)

	Reliability Center, Inc. - Unfired Pressure Vessel Inspections
		It is a requirement of Australian workplace law that pressure vessels be regularly inspected and be maintained in a safe operating condition.
		The definition of a pressure vessel in Australian Standard AS 3873 is “ a vessel subject to internal or external pressure.
		It is necessary to inspect the integrity of pressure vessels.
	www.reliability.com /articles/guest_article05.htm (990 words)

	Stirred Reactor and Pressure Vessel Selection Guide (Site not responding. Last check: 2007-09-10)
		All Parr reactors and pressure vessels are designed and manufactured with great care to ensure safe operation when used within their prescribed temperature and pressure limits.
		The hazards introduced by under-designed pressure vessels are readily apparent, but the penalties that must be paid for over-designed apparatus are often overlooked.
		Recognizing these criteria, Parr reactors and pressure vessels are offered in several different styles, each designed for convenient use in daily operation within certain temperature and pressure limits, using gaskets, closures and other elements carefully selected for safe operation within the limits specified for that design.
	www.parrinst.com /default.cfm?page_id=107 (1005 words)

	Safety and Health Topics: Pressure Vessels
		Generally, a pressure vessel is a storage tank or vessel that has been designed to operate at pressures above 15 p.s.i.g.
		Recent inspections of pressure vessels have shown that there are a considerable number of cracked and damaged vessels in workplaces.
		The safe design, installation, operation, and maintenance of pressure vessels in accordance with the appropriate codes and standards are essential to worker safety and health.
	www.osha.gov /SLTC/pressurevessels/index.html (149 words)

	Advanced Pressure Vessel Software
		Advanced Pressure Vessel - creates fast efficient pressure vessel designs by Code in a minimal amount of time and boasts the most superb design report output in the industry.
		Legs, Lugs, and Seismic Module - allows you to calculate vessel component and support stresses for vessels supported by legs, support lugs, or support rings in a minimal amount of time and boasts the most superb design report output in the industry.
		National Board® is a registered trademark of the National Board of Boiler and Pressure Vessel Inspectors.
	www.computereng.com /products/advanced_pressure_vessel/pressure_vessel_suite (260 words)

	Yoke Frame Closure Pressure Vessel (Site not responding. Last check: 2007-09-10)
		This is a particularly useful closure arrangement for high and ultra high pressure applications due to the lack of stress risers.
		he hollow cylinder pressure vessel promotes maximum cycle life expectancy under high-pressure operation.
		Gas or liquid can be used as the pressurization medium, and stainless steel vessels are an option.
	www.snap-tite.com /Autoclave_Engineers/Production_High_Pressure_Vessel/Yoke_Frame_Closure_PV/index.html (195 words)

	Kuentzel Closure Pressure Vessel (Site not responding. Last check: 2007-09-10)
		Sized in volumes from 103 to 206 ml, these vessels are offered in both single and double-ended configurations.
		Vessel ID of 1" (25 mm) & IL's of 8 to 30" (203 to 762 mm) (depending on closure configuration)
		Easily cleaned and assembled, Kuentzel Closure pressure vessels are safe, cost effective tools for small capacity applications.
	www.snap-tite.com /Autoclave_Engineers/ASME_Code_Pressure_Vessels/Kuentzel_Closure_Pressure_V/index.html (210 words)

	Pressure Vessel & Tank Consulting: Engineer Consultant, Expert
		Mooney has thirty eight years in mechanical specification, design, analysis, failure analysis, inspection, troubleshooting and expert witness work on pressure vessels, tanks, piping, high temperature fluid solids units, refractory and thermal insulation and other process equipment.
		He is former chairman of the ASME Pressure Vessel Code Special Working Group on Toughness and a member of the API Subcommittee on Pressure Vessels and Tanks.
		Mooney has given worldwide ASME courses in Pressure Vessels and the API course on Tankage.
	www.pressurevessels-tanks.com (142 words)

	www.pveng.com - Home
		Pressure Vessel Engineering provides complete vessel code calculations for ASME Section 1, 4 and 8 (Div 1 and 2) as well as B31.1 and 31.3.
		We use FEA to analyze pressure vessels or components and provide solid modeling services.
		PVE has designed vessels ranging from small filter vessels to large pressure treating cylinders.
	www.pveng.com (77 words)

	DPD Boiler and Pressure Vessel Inspections -- Overview
		Conducting one-time inspections of residential boiler and pressure vessel installations.
		In early February 2007 DPD's Trade Licensing Program, and the elevator, boiler and pressure vessel inspectors are moving to Suite 1250 in the Bank of America Tower, 701 Fifth Ave.
		To request a boiler or pressure vessel inspection, call the DPD inspector assigned to your area of the city.
	www.seattle.gov /dpd/Enforcement/Boiler_and_Pressure_Vessel_Inspections/index.asp (217 words)

	Pressure Vessel (Site not responding. Last check: 2007-09-10)
		We are pleased to assist you in all your needs concerning Pressure Vessel.
		Hoyt Sales cares about its customers and their needs, and purpose to give you the best job in Pressure Vessel work you can find.
		Pressure Vessel is something that our employees are serious and dedicated about, and are determined to be the best service there is to offer.
	www.hoytsales.com /Pressure-Vessel.ASP (178 words)

	Amazon.com: Pressure Vessel Design Manual, Third Edition: Books: Dennis R. Moss (Site not responding. Last check: 2007-09-10)
		Picking up where the success of the previous editions left off, this book is an accumulation of design procedures, methods, techniques, formulations, and data for use in the design of pressure vessels, their respective parts and equipment.
		Pressure Vessel Design: The Direct Route (Advances in Structural Integrity) by Josef L Zeman in Front Matter
		Although this book has "illustrated procedures for solving major pressure vessel design problems" it is full of errors and typos.
	www.amazon.com /Pressure-Vessel-Design-Manual-Third/dp/0750677406 (1267 words)

	Boiler & Pressure Vessel Certification - Product Certification
		Since 1916, ASME has accredited companies in the pressure vessel industry to certify that their products, services and quality system comply with the ASME Boiler and Pressure Vessel Code.
		The ASME International Boiler and Pressure Vessel (BPV) Code establishes rules governing the design, fabrication, and inspection of boilers and pressure vessels, and nuclear power plant components during construction.
		In addition, it has been estimated that over 100 countries accept the ASME Boiler and Pressure Vessel Code as a means of meeting their government safety regulations.
	www.asme.org /Codes/CertifAccred/Certification/Boiler_Pressure_Vessel.cfm (381 words)

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