GB/T 593-2019: Marine Flange Stainless Steel Packing Cocks - Standards & Specifications

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GB/T 593 Marine flange stainless steel packing cock basic parameters:

Connection methodformshapehighest working pressure pMpa


Nominal pressure

PN
Nominal diameterDN/mmInterface standardsApplicable mediaMaterial
Category F: flange connectionFAdirect0.6 6.0 20~80CB/T4196Fresh water, sea water, lubricating oil, fuelBronze, cast iron, stainless steel
FASCB/T2501
FLTee L typeCB/T4196
FLSCB/T2501
FTThree way T typeCB/T4196
FTSCB/T2501
Category T: threaded connectionThreads on both endsTA、Straight-through, three-way L type, three-way T type11032CB/T4456Bronze, stainless steel
TL、1.61620、25
TT2.5256~15CB/T4328
Threaded on one end, bleed fitting on the otherTBdirect11032CB/T4456
1.61620、25
2.5256~15CB/T4328
TCright angle0.1-10~25CB/T4456


Main parts materials:

Part NameMaterial
TypeTrademarkMaterial codestandard encdoing
Body, plug corecast tin bronzeZCuSn10Zn2Q1GB/T 1176-2013
ZCuSn5Pb5Zn5Q2
Stainless steelZG07Cr20Ni10N1
ZG07Cr19Ni11Mo2N3
Ontologygrey cast ironHT200HTGB/T9439-2010
wrenchCarbon structural steelQ235B-GB/T700-2006
fillerPTFE---


FA、FL、FT Basic dimensions of stainless steel cocks:


Nominal pressure

PN/
Nominal diameter DN/
mm
structure sizewall thickness/tflangebolthandle L0theoretical weight/kg
LHH1
DD1D2bd0n/个Th.FA型FL型FT型
62014513940495684812134M121252.7 3.1 3.0 
25155149411057356131403.3 3.7 3.7 
321651684851158364156M141604.1 4.7 4.6 
40190192561259374141806.1 7.7 7.6 
5020524365135103842308.6 10.2 10.10 
6522528580615512310425011.1 15.6 13.9 
8024532496170138118832016.8 19.2 19.0 


FAS、FLS、FTS Basic dimensions of stainless steel cocks:

Nominal pressurePN/Nominal diameter DN/
mm
structure sizewall thickness /tflangebolthandleL0theoretical weight/kg
LHH1
DD1D2bd0nTh.FAFLFT
62015013940490655014114M101252.7 3.1 3.0 
251601494110075601403.3 3.7 3.7 
3218016848512090701614M121604.5 5.35.2
4020019256130100801806.78.4 8.3
5023024365140110902309.511.3 11.1
6529028580616013011025012.115.215.1
80310324961901501281818M1632018.1 21.0 20.8


TA、TL、TT Basic dimensions of stainless steel cocks:


Nominal pressure

PN/
Nominal diameter DN/
mm
structure sizeThreaded jointhandleL0theoretical weight/kg
LH1HDD1D2LL1
TATLTT
25 6702060M22*1.519.8 101431000.37 0.44 0.43 
10782772M27*1.524.8 14161100.61 0.64 0.63 
15923792M36*233 222251150.85 1.12 1.10 
16 2098409933 2420-1251.35 1.53 1.51 
2510642108M42*239 291401.69 2.01 1.98 
10 3212649120M48*245 361603.01 3.47 3.38 


TB Basic dimensions of stainless steel cocks


Nominal pressure

PN/
Nominal diameter DN/
mm
structure sizewall thickness/tThreaded jointhandle/L0theoretical weight/kg
LL1H1HDD1D2LL1L2
25 6602520605M22*1.519.8 1014331000.36 
1069302772M27*1.524.8 14161100.56 
1587413792M36*233 222251150.84 
16 2092434099433 2420321251.27 
251035042108M42*239 29211401.51 
10 3211956491205M48*245 361602.86 


TC Basic dimensions of stainless steel cocks

最高工作压力/MPaNominal diameter DN/
mm
structure sizewall thickness/t

Threaded joint

/D

Hexagon opposite sides 

/S

keyhole/dhandle/L0theoretical weight/kg
LL1H1H
0.1 10581421583M22*1.522 6800.52 
1567182665M27*227 850.78 
20812203277M33*336 71001.05 
2598223790M42*241 71201.59 


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