GB/Z 18427-2001
Active
GB/T 14034.2-2023
Active
National standards
GB/T 14034.2-2023 Connections for hydraulic fluid power—Metallic tube connectors—Part 2:37° flared connectors
GB/T 14034.2-2023 Connections for hydraulic fluid power—Metallic tube connectors—Part 2:37° flared connectors
Basic Information
Standard Code:
GB/T 14034.2-2023
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Hydraulic and pneumatic devices
ICS Name:
Pipes and pipe fittings
Publish Date:
2023-05-23
Implement Date:
2023-12-01
Publisher:
国家市场监督管理总局、国家标准化管理委员会
Technical Committee:
全国液压气动标准化技术委员会(SAC/TC 3)
Pages:
53 pages
Scope
本文件规定了适用于外径为6 mm～50.8 mm金属管的37°扩口式管接头的通用设计要求、基本尺寸和性能要求，以及合格判定试验,扩口式管接头用于在本文件中规定的压力和温度范围内的流体传动和一般应用。
本文件规定的管接头适用于将金属管或软管接头与符合GB/T 2878.1、ISO 9974-1、ISO 1179-1或ISO 11926-1的油口进行过渡连接(相关软管接头规范参见GB/T 9065.5)。
注1：对于新的应用设计，9.6给出了相关要求。在允许使用弹性密封件的地方，首选符合国家标准并包含弹性密封的管接头设计。
注2：在规定压力、温度范围之外的条件下使用，参见5.5。
注3：优先选用米制螺纹扩口端和公制金属管。对于统一螺纹扩口端，公制管和英制管都可适用(见图8)，只需改变衬套即可。
注4：此类管接头在表1给出的工作压力下工作，通过金属与金属的密封，实现全流量连接。由于许多因素会影响系统正常运行的压力，这些值不能作为最小保证值。对于每种应用，供需双方需进行充分的试验并对结果进行审查，以确保管接头满足要求的性能水平。
Development Information
Drafting Units:
浙江苏强格液压股份有限公司、浙江松乔气动液压有限公司、蚌埠液力机械有限公司、宁波久荣液压器材有限公司、厦门美科安防科技股份有限公司、宁波固远管件有限公司、四川川润液压润滑设备有限公司、浙江海格威液压科技有限公司、伊顿液压(宁波)有限公司、天津市精研工程机械传动有限公司、广东亨鑫亚科技有限公司、广东天恒液压机械有限公司、北京机械工业自动化研究所有限公司
Drafting Persons:
罗学荣、吴节刚、楼仲宇、钱老红、陈柯、王凤平、张柯、余东泽、王涌潮、俞吉健、冯国勋、黄琼芳、张祝福、曹巧会
Same series standard
Referenced Standards
ISO 1127
ISO 1179-3
ISO 9974-2
ISO 11926-3
GB/T 193-2003 General purpose metric screw threads—General plan
GB/T 196-2003 General purpose metric screw threads—Basic dimensions
GB/T 197-2003 General purpose metric screw threads—Tolerances
GB/T 197-2018 General purpose metric screw threads—Tolerances
GB/T 2878.3-2017 Connections for hydraulic fluid power—Ports and stud ends with metric threads and O-ring sealing—Part 3:Light-duty stud ends (L series)
GB/T 3103.1-2002 Tolerances for fasteners—Bolts, screws, studs and nuts
GB/T 3639-2000 Cold-drawn or cold-rolled precision seamless steel tubes
GB/T 3639-2009 Seamless cold-drawn or cold-rolled steel tubes for precision applications
GB/T 3639-2021 Seamless cold-drawn or cold-rolled steel tubes for precision applications
GB/T 7307-2001 Pipe threads with 55 degree thread angle where pressure-tight joints are not made on the threads
GB/T 10125-1997 Corrosion tests in artificial atmospheres—Salt spray tests
GB/T 10125-2012 Corrosion tests in artificial atmospheres—Salt spray tests
GB/T 10125-2021 Corrosion tests in artificial atmospheres—Salt spray tests
GB/T 17446-1998 Fluid power systems and components—Vocabulary
GB/T 17446-2012 Fluid power systems and components—Vocabulary
GB/T 17446-2024 Fluid power systems and components—Vocabulary
GB/T 20669-2006 Unified screw threads—Profiles
GB/T 20670-2006 Unified screw threads—General plan
GB/T 26143-2010 Connectors for hydraulic fluid power—Test methods
GB/T 41354-2022 Hydraulic fluid power—Plain-end,seamless and welded precision steel tubes—Dimensions and nominal working pressures
GB/T 196-2025 General purpose metric screw threads—Basic dimensions
Adopt standards
ISO 8434-2:2007
Related Standards
GB/T 7937-2002
Replaced
GB/T 7937-2002 Fluid power systems and components—Connectors and associated components—Nominal pressures
GB/T 15329.1-2003
Replaced
GB/T 15329.1-2003 Rubber hoses and hose assemblies—Textile-reinforced hydraulic types—Specification—Part 1:Oil-based fluid applications
GB/T 5860-2003
Active
GB/T 5860-2003 Hydraulic fluid power—Quick-action couplings Dimensions and requirements
GB/T 5861-2003
Active
GB/T 5861-2003 Hydraulic fluid power—Quick action couplings—Test methods
GB/T 7937-2008
Abolished