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National Gas Thread Gages NGO Thread Gage-Thread Series Designations
作者:管理员    发布于:2018-05-03 11:18:46    文字:【】【】【
摘要: 全球目前使用的螺纹规范主要是美标螺纹系列,英制惠氏螺纹系列,德国DIN系列以及ISO系列量规,期待您的咨询。苏州斯文克精密测量设备有限公司专业代理销售美国GSG量规,生产API石油螺纹规,sharp Vee螺纹规、VR螺纹规、BPV螺纹规,同时可以生产制作非标定制量具。期待您的光临。
  全球目前使用的螺纹规范主要是美标螺纹系列,英制惠氏螺纹系列,德国DIN系列以及ISO系列量规,期待您的咨询。苏州斯文克精密测量设备有限公司专业代理销售美国GSG量规,生产API石油螺纹规,sharp Vee螺纹规、VR螺纹规、BPV螺纹规,同时可以生产制作非标定制量具。期待您的光临。


STANDARD TAP MARKINGPRODUCT THREAD DESIGNATIONTHREAD SERIESREFERENCES AMERICAN NATIONAL STANDARDS (ANSI/ASME)
ACME-CACME-CAcme threads, centralizingB1.5
ACME-GACME-GAcme thread, general purpose (See also STUB ACME)B1.5
AMOAMOAmerican Standard microscope objective threadsB1.11
NPTANPTAeronautical National Form taper pipe threads(MIL-P-7105B)
BUTTBUTTButtress Threads, pull typeB1.9
PUSH-BUTTPUSH-BUTTButtress Threads, push typeB1.9
F-PTFF-PTFDryseal fine taper pipe thread seriesB1.20.3 (Appendix C)
MMMetric Screw Threads - M Profile with basic ISO 68 profileB1.13M, B1.18M
MJMJMetric Screw Threads - MJ Profile with rounded root of radius 0.15011P to 0.18042PB1.21M
MJSMJSMetric Screw Threads - MJ Profile, special series Class 5 interference fit Internal ThreadsB1.12
NCNC5IFEntire ferrous material range 
NCNC5INFEntire nonferrous material range 
NGO (RH or LH)NGONational gas outlet threadsANSI/CGA V-1 (B57.1)
NGSNGSNational gas straight threadsANSI/CGA V-1 (B57.1)
NGTNGTNational gas taper threadsANSI/CGA V-1 (B57.1)
NHNHAmerican Standard hose coupling threads of full formB2.4
NPSNPSCAmerican Standard straight pipe threads in pipe couplingsB1.20.1
NPSFNPSFDryseal American Standard fuel internal straight pipe threadsB1.20.3
NPSHNPSHAmerican Standard straight hose coupling threads for joining to American Standard taper pipe threadsB2.4
NPSINPSIDryseal American Standard intermediate internal straight pipe threadsB1.20.3
NPSLNPSLAmerican Standard straight pipe threads for loose-fitting mechanical joints with locknutsB1.20.1
NPSNPSMAmerican Standard straight pipe threads for free-fitting mechanical joints for fixturesB1.20.2
NPTNPTAmerican Standard taper pipe threads for general useB1.20.1
NPTFNPTFDryseal American Standard taper pipe threadsB1.20.3
NPTRNPTRAmerican Standard taper pipe threads for railing jointsB1.20.1
PTF SHORTPTF-SAE SHORTDryseal SAE short taper pipe threadsB1.20.3
PTF SPL SHORTPTF-SPL SHORTDryseal special short taper pipe threadsB1.20.3 (Appendix C)
PTF SPLPTF-SPL EXTRA  
X-SHORTSHORTDryseal special extra short taper threads (See also SPL-PTF)B1.20.3 (Appendix C)
MSISO Miniature screw threads 0.25 to 1.4mm inc. 
SGTSGTSpecial gas taper threadsANSI/CGA V-1 (B57.1)
SPL-PTFSPL-PTFDryseal special taper pipe threadsB1.20.3 (Appendix C)
STUB ACMESTUB ACMEStub Acme threadsB1.8
STUB ACME M1STUB ACME M1Stub Acme Modified Form 1B1.8
STUB ACME M2STUB ACME M2Stub Acme Modified Form 2B1.8
NUNUnified inch screw thread, constant-pitch seriesB1.1
NCUNCUnified inch screw thread, coarse-pitch seriesB1.1
NFUNFUnified inch screw threwd, fine-pitch seriesB1.1
NEFUNEFUnified inch screw thread, extra-fine pitch seriesB1.1
NUNJUnified inch screw thread, constant-pitch series, with rounded root of radius 0.15011P to 0.18042P. (Ext. thd. only)B1.15 (Draft) MIL-S-8879A
NCUNJCUnified inch screw thread, coarse-pitch series, with rounded root of radius 0.15011P to 0.18042P. (Ext. thd. only)B1.15 (Draft) MIL-S-8879A
NFUNJFUnified Inch Screw Thread, fine pitch series, with rounded root of radius 0.15011P to 0.18042P. (Ext. thd. only.)B1.15 (Draft) MIL-S-8879A
NEFUNJEFUnified Inch Screw Thread, extra-fine pitch series, with rounded root of radius 0.15011P to 0.18042P. (Ext. thd. only.)B1.15 (Draft) MIL-S-8879A
NUNRUnified Inch Screw Thread, constant pitch series, with rounded root of radius not less than 0.108P. (Ext. thd. only.)B1.1
NCUNRCUnified Inch Screw Thread, coarse thread series, with rounded root of radius not less than 0.108P. (Ext. thd. only.)B1.1
NFUNRFUnified Inch Screw Thread, fine pitch series, with rounded root of radius not less than 0.108P (Ext. thd. only.)B1.1
NEFUNREFUnified Inch Screw Thread, extra-fine pitch series, with rounded root of radius not less than 0.108P. (Ext. thd. only.)B1.1
UNMUNMUnified miniature thread seriesB1.10
NSUNSUnified Inch Screw Thread, special diameter pitch, or length of engagement.B1.1

British Screw Threads

STANDARD TAP & DIE MARKINGPRODUCT THREAD DESIGNATIONTHREAD SERIESREFERENCE BRITISH STANDARD
BABABritish AssociationBS93
BSCBSCBritish cycleBS811
BSFBSFBritish WHITWORTH FineBS84
BSWBSWBritish WHITWORTH CoarseBS84
OBSOLETEBSPPBritish Straight PipeOBSOLETE
OBSOLETEBSPTBritish Taper PipeOBSOLETE
WHITWHITBritish WHITWORTH SpecialBS84
STANDARD TAP MARKINGPRODUCT THREAD DESIGNATIONBRITISH PIPE THREADSREFERENCE BRITISH STANDARD
G 1/4GBritish Internal Straight Pipe for Mechanical JointsBS2779
Rc 1/4RcBritish Internal Taper Pipe for Pressure Tight JointsBS21
Rp 1/4RpBritish Internal Straight Pipe for Pressure Tight JointsBS21
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