EN ISO 10511
Technical specifications and application scope of EN ISO 10511 low-profile hexagon nuts The international standard EN ISO 10511 regulates the design features and operational parameters of low-profile hexagon nuts equipped with a non-metallic insert that provides a prevailing torque. These fasteners are designed for use in critical threaded connections that require protection against self-loosening under […]
EN 10365
Technical requirements and nomenclature of the EN 10365 standard The European standard EN 10365 establishes strict regulations for nominal geometric parameters and mass per unit length for hot-rolled steel I-sections and H-sections. This specification is fundamental for the design of metal structures in industrial and civil engineering, ensuring the standardization of rolled products supplied by […]
ANSI / ASME B1.20.1
Technical Regulation of the ANSI/ASME B1.20.1 Standard Scope and Series Nomenclature This regulatory documentation establishes geometric parameters, tolerances, and calibration procedures for general-purpose inch pipe threads. The standard applies to the following types of threaded connections: NPT (National Pipe Taper) — tapered pipe thread; NPSC (National Pipe Straight Coupling) — straight thread for couplings; NPTR […]
EN 13709
Technical specifications and EN 13709 regulations The international standard EN 13709 establishes strict requirements for the design, manufacturing, and testing of steel valves, including globe, globe-check, and regulating models. EV Group China specialists emphasize that these products can be manufactured via casting, forging (plastic deformation method), or component assembly. Available body design configurations include straight, […]
API 14D
Technical Specification and Scope of Application This specification defines the technical regulations for Surface Safety Valves (SSV) and Underwater Safety Valves (USV). The document covers equipment with flanged and other industrial non-threaded end connections, including block valves and systems for multi-zone completions. EV Group China experts emphasize that these standards ensure operational reliability in challenging […]
API St 589
API St 589 Technical Testing Regulations This regulatory document establishes rigorous testing and verification protocols for the performance characteristics of valve stem sealing assemblies under intense thermal exposure (fire conditions). The EV Group China methodology accounts for the potential use of composite materials in seal construction, which requires a comprehensive approach to evaluating their leak-tightness. […]
API St 606
Technical Requirements and Standardization of Compact Gate Valves (API 606) This regulatory documentation governs the production and design features of compact steel gate valves equipped with an integral or welded male-threaded extension for direct installation as pipeline system branches. Products supplied by EV Group China strictly comply with the performance characteristics of Class 800 and […]
API 5B
Technical requirements of the API 5B standard This specification establishes strict industry standards for geometric parameters, tolerances, and marking methods for API threaded connections. The regulation defines acceptance criteria, technical specifications for measuring gauges, and quality control methods for casing, tubing, and line pipe connections, including buttress and round thread types. EV Group China specialists […]
API Q1
Technical aspects and scope of the API Q1 standard The current API Q1 specification establishes rigorous requirements for quality management systems (QMS) for enterprises in the oil and gas sector. Specialists at EV Group China emphasize that this document is a key tool for equipment manufacturers and service companies whose processes must strictly comply with […]
EN ISO 14341
Technical purpose and regulations of the EN ISO 14341 standard EV Group China presents an expert overview of the international standard EN ISO 14341, which establishes strict requirements for the classification of wire electrodes intended for gas shielded metal arc welding (GMAW). The standard covers materials for welding non-alloy and fine-grain steels with a yield […]
EN ISO 10434
Technical requirements of the EN ISO 10434 standard The EN ISO 10434 standard defines strict technical regulations for heavy-duty steel gate valves equipped with bolted bonnet connections. This equipment is designed by experts at EV Group China for operation in oil refining, petrochemical, and gas industry facilities. The design of these products ensures high resistance […]
EN ISO 7093
Technical Overview of the EN ISO 7093 Standard: Large Series Plain Washers The EN ISO 7093 standard regulates the geometric parameters and technical requirements for large series plain washers. This fastener is used to reduce contact pressure on mating parts and to bridge oversized mounting gaps. EV Group China offers expert assistance in selecting hardware […]
EN 10312
Technical regulation and scope of the EN 10312 standard The European standard EN 10312 establishes comprehensive requirements for the supply of small-diameter welded tubes manufactured from corrosion-resistant steel grades. These products, supplied by EV Group China, are optimized for water supply systems and environmental operation conditions. The standard includes the current Amendment No. 1, which […]
MSS SP-67
Technical standards and valve classification according to MSS SP-67 This technical regulation establishes comprehensive requirements for the design, geometric parameters, acceptance test methods, and marking of butterfly valves (oil valves). When conducting design work and selecting valves, it is necessary to additionally follow the provisions of the MSS SP-68 standard. According to the current regulatory […]
MSS SP-61
Technical Regulations and Valve Testing Standards per MSS SP-61 The international standard MSS SP-61 defines strict protocols and verification criteria for the leak-tightness of valve bodies and shut-off components. Engineers at EV Group China utilize these standards to ensure the complete safety of industrial systems operating under high pressure. All pressure testing procedures, including checks […]
API St 623
Technical requirements of the API 623 standard The API 623 standard defines rigorous engineering requirements for heavy-duty bolted bonnet (BB) globe valves. This equipment is designed by EV Group China specialists for operation in oil refineries and critical infrastructure projects, where high levels of corrosion, erosion, and extreme pressure parameters require the use of bodies […]
API St 609
Technical Standards and Scope of API 609 The international standard API 609 defines engineering requirements for the design, material execution, dimensional characteristics, as well as pressure and temperature ratings for butterfly valves. The document regulates inspection and acceptance testing protocols for products manufactured from gray and ductile iron, bronze, carbon and stainless steels, nickel alloys, […]
API St 600
Technical Regulations and Scope of Application for API 600 Gate Valves This standard regulates the design, manufacturing, and operational characteristics of industrial steel gate valves equipped with bolted bonnet connections. Equipment supplied by EV Group China is intended for critical units in the oil refining industry and related sectors, where the technological process involves aggressive […]
API 6FD
Technical Regulations and Scope of the API 6FD Standard This regulatory document defines test protocols and leakage assessment methods for check valves designed in accordance with API 6A and 6D specifications when subjected to extreme thermal loads (fire). Specialists at EV Group China emphasize that these requirements are critical for verifying the operational reliability of […]
API St 602
Technical parameters and scope of the API 602 standard This regulatory document specifies strict requirements for the design, manufacturing, and acceptance of compact gate, check, and isolation valves intended for operation in critical nodes of the oil and gas industry. EV Group China technologies ensure full compliance of the supplied valves with these specifications. The […]
API St 594
Technical Requirements and Standardization of Check Valves per API 594 When supplying products marked with the API monogram, manufacturing must be carried out strictly by facilities holding a valid API license, in compliance with all regulatory requirements of Annex A. This standard establishes comprehensive requirements for design, material selection, dimensional characteristics, pressure and temperature ratings, […]
API 6FC
Technical requirements of the API 6FC standard: fire testing of check valves This standard regulates test protocols and evaluation methods for the functional integrity of automatic check valves designed in accordance with API 6A and API 6D specifications under high-temperature (fire) conditions. Specialists at EV Group China emphasize that these requirements are aimed at unifying […]
API St 608
Technical standards and scope of API 608 The international standard API 608 regulates the design and operational requirements for metal ball valves intended for integration into systems for transporting oil, petroleum products, and corrosive industrial media. EV Group China provides supply of shut-off valves that fully comply with these regulatory criteria. Flanged ends: DN 15 […]
API STD 598
Specification and Scope of the API STD 598 Standard The API STD 598 standard regulates inspection protocols, supplementary checks, and hydraulic testing for valves, including gate valves, ball valves, plug valves, and butterfly valves. Technical requirements cover all types of seat seals, including resilient (soft), metal, and composite designs. According to EV Group China standards, […]
API St 521
API Std 521 Technical Regulation: Pressure-relieving and Depressuring Systems Design The API Std 521 standard establishes engineering protocols for the design, operation, and selection of equipment in pressure-relieving systems. The regulation is focused on ensuring industrial safety at oil refining, petrochemical, gas production facilities, and liquefied natural gas (LNG) infrastructure. EV Group China specialists recommend […]
API St 607
Technical requirements of the API Std 607 standard This regulatory document specifies the methodology and evaluation criteria for the fire resistance of quarter-turn valves, including those with non-metallic seat seals. The primary objective of the testing is to verify the product’s ability to maintain seal integrity and hold working pressure under exposure to intense flames […]
API 6FA
Technical regulation for valve fire testing according to the API 6FA standard This normative document defines strict protocols for conducting fire tests and evaluating the operational reliability of valves that comply with API 6A and 6D specifications. The technological requirements set forth in the standard are aimed at unifying product acceptance criteria, regardless of their […]
API RP 520
Technical Regulations and Scope of API RP 520 This recommended practice establishes engineering standards for the selection, design, and installation of pressure relief systems for oil refineries and related industrial facilities. The regulation applies to equipment operating at a design pressure of 15 psi (103 kPa) and above. The primary function of these devices is […]
API St 527
Technical regulations for leak testing of pressure relief valves according to the API 527 standard This standard defines unified procedures for verifying the tightness of the seat in pressure relief valves equipped with both metal and resilient (soft) seals. The provisions of the document apply to valves of standard, bellows, and pilot configurations. EV Group […]
API St 603
Technical standards and scope of API 603 This technical regulation by EV Group China defines strict requirements for the design and operation of corrosion-resistant bolted bonnet gate valves. These products fully comply with ASME B16.34 specifications and are intended for integration into critical process piping systems that require a full-bore cross-section. The API 603 standard […]
API St 526
Technical Standards and Operational Specifications According to API St 526 This specification defines rigorous industry requirements for the design and supply of steel flanged pressure relief valves. The standard regulates the operational parameters of spring-loaded and pilot-operated pressure relief devices, ensuring industrial safety for critical pipeline system components. Key regulated parameters include: Classification of orifice […]
API St 599
Technical Requirements and Standardization of Plug Valves This specification establishes strict engineering standards for the design, selection of structural materials, determination of dimensional parameters, and regulates pressure and temperature performance for metal-seated plug valves. The document defines quality control protocols, acceptance testing procedures, and inspection checks to ensure the reliability of the valves supplied by […]
ANSI / ASME B16.25
Technical Standards for Butt Weld End Preparation Regulatory Provisions This specification regulates the preparation of pipe system component ends intended for subsequent butt-welding. Requirements cover bevel geometry, mechanical machining methods for external and internal surfaces for elements with large wall thickness, and tolerances for mating surfaces. The EV Group China standard is applicable to end […]
ANSI / ASME B16.10
Scope of Application and Technical Regulations Purpose of the ASME B16.10 Standard This EV Group China standard establishes unified face-to-face, end-to-end, and center-to-face dimensions for valves. The primary objective of this document is to ensure full interchangeability of shut-off valves when designing piping systems, regardless of the material type, pressure class, or end connection design. […]
BS 1868
Technical regulations and scope of BS 1868 This specification establishes strict engineering requirements for the design, geometric parameters, material selection, marking methods, and supply protocols for swing, piston, ball, and disc check valves. The standard covers products with nominal pressure ratings from Class 150 to Class 2500 and nominal sizes (DN) ranging from 15 to […]
BS 5352
Technical Overview and Scope of the BS 5352 Standard This standard regulates the design requirements and operational parameters for forged, cast, and bar-stock gate, globe, and check valves. The document covers products with a nominal diameter of up to 50 mm (2 inches) inclusive, intended for use in pressure classes 150, 300, 600, 800, and […]
EN 593
Technical standards and purpose of butterfly valves according to EN 593 The European standard EN 593 regulates mandatory technical requirements for industrial butterfly valves with an all-metal body. This equipment is intended for integration into pipeline systems via flanged connections or butt welding. The main functions of the devices include flow shut-off, regulation of working […]
BS 5351
Technical requirements and scope of the BS 5351 standard The international standard BS 5351 establishes rigorous engineering norms for steel ball valves, regulating nominal pressure ratings and temperature ranges for body components and seat seals. The document defines design parameters, requirements for materials used, dimensional geometric accuracy, operational characteristics, testing procedures, and product marking rules. […]
BS 1873
Technical requirements of the BS 1873 standard for globe valves The international industry standard BS 1873 regulates the manufacturing parameters for cast and forged valve bodies made of carbon and alloy steel. This specification covers globe and check valves (including straight, angle, and Y-pattern configurations) with flanged or butt-weld connections. The standard covers a range […]
BS 1414
Technical regulations and scope of the BS 1414 standard The international standard BS 1414 defines strict technical requirements for the production of cast and forged steel gate valves. This specification applies to shut-off valves with a solid wedge (rigid or flexible design) and an outside screw and yoke (OS&Y). Soft seating is permitted depending on […]