MSS - Manufacturers Standardization Society of the Valve & Fitting Industry
MSS SP-55 Quality Standard for Steel Castings for Valves, Flanges and Fittings and Other Piping Components
MSS SP-55 indications the visual inspection criteria for castings. This speciciation is part of the API 598 inspection procedure.
A copy of this spec can be purchased at http://mss-hq.org/Store/Results.cfm?category=6&secondary=28
NACE - "The National Association of Corrosion Engineers" www.nace.org
NACE MR-0175 (ISO 15156) - Petroleum and natural gas industries—Materials for use in H2S-containing environments in oil and gas production
NACE MR-0175 is the "standard for materials to be used in "sour" applications (H2S - hydrogen sulfide). The spec indicates materials, mechanical properties and heat treatments for metals used in hydrocarbon service.
The NACE spec can be purchased at http://web.nace.org/Departments/Store/Product.aspx?id=e826035f-a056-489c-a434-8524168dd95e
ISO - International Organization for Standardization. www.iso.org
ISO 9000 is the family of standards that works to ensure customer/stakeholder needs are met as a result of quality management systems. ISO 9001 indicates the requirements an organization must meet to be classified as ISO compliant.
ISO Standards can be purchased at http://www.iso.org/iso/store.htm
CSA - Canadian Standards Association www.csa.ca
CSA Z245.15-09 - Steel Valves
CSA Z245 details the design and material specifications of NPS 2 to NPS 60 gate, plug, ball and check valves in oil/gas pipeline systems.. The standard covers standard end requirements for flanged, buttweld and wafer-type valves as well as cold working-pressure ratings determined by nominal pressure classes PN 20 to PN 420. Other variations of Z245 apply to other pressure containing vessels.
All CSA standards can be purchased at http://shop.csa.ca
GOST Certification - Gost is a set of technical standards utilized by the Euro-Asian Council. It is a required certification for certain countries including : Russia, Belarus, Ukraine, Moldova, Kazakhstan, Azerbaijan, Armenia, Kyrgyzstan, Uzbekistan, Tajikistan, Georgia and Turkmenistan. Each region has adopted its own variation of GOST - the national standards of Russia are the GOST R standards.
For a copy of GOST or additional information visit http://www.gost.ru/wps/portal/pages.en.StandartCatalog
ABSA - Alberta Boilers Safety Association. ABSE administers Alberta's pressure equipment safety programs under the Safety Codes Act(SCA). ABSA has the jurisdiction to enforce pressure equipment safety as set out in legislation.
For more information on ABSA visit: http://www.absa.ca/ABSA-info/AboutABSA.aspx
CRN - Canadian Registration Number. This number is defined by CSA B51 Clause 4.3. It is issued by province and indicates that the design is satisfactory to CSA standards. CRN numbers end in up to three numbers after a decimal place indicating where they are eligible:
1 - British Columbia
2 - Alberta
3 - Saskatchewan
4 - Manitoba
5 - Ontario
6 - Quebec
7 - New Brunswick
8 - Nova Scotia
9 - Prince Edward Island
0 (zero) - Newfoundland
T - Northwest Territories
Y - Yukon Territory
N - Nunavut
A CRN number may also contain the letter "C" - if it does the CRN indicates it is registered in all jurisdictions. If the CRN number has the letter combination "CL" the design is registered in all jurisdictions that require registration and is not registered in areas that do not require it.
Sample CRN numbers are: B1079.23, M2138.5C and V1234.5CL.
For More information on CRN numbers visit: http://www.absa.ca/Design%20Survey/FAQs.aspx#CRN
CE Marking (Conformité Européenne) - is a required conformity mark for products placed on the market in the European Economic Area. It is not a quality mark my law; however is often considered as one. The CE Mark does not indicate products are made in Europe it just indicates that the manufacturer has declared conformity and responsibility that they have met all required EU legislation.
For more information visit http://en.wikipedia.org/wiki/CE_mark
PED - Pressure Equipment Directive - The Pressure Equipment Directive ensures pressure equipment and assemblies above specified pressure/volume must be safe, meet safety & design requirements, carry CE Marking and satisfy assessment procedures.
For pressure equipment and assemblies below the specified pressure/volume units must be safe, meet safety & design requirements and carry specified markings (not the CE marking)
For more information visit http://ec.europa.eu/enterprise/sectors/pressure-and-gas/documents/ped/
Contact - The Valve Pipeline
Forged valves usually cost more but you don't need to worry about bad castings i.e. porous castings.