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1 - Working situation.
N stands for Self sealing.
B stands for Jacket.
F stands for Fireproof.
S stands for High T&P.
2 - Valve type
X stands for Plug valve.
3 - Actuators
Omitted for manual actuators.
3 stands for worm gear actuators.
9 stands for electric
actuators.
4 - Connecting types
1 stands for inner thread.
4 stands for flanged
6 stands for SW and BW.
5 - Construction Types
3 stands for Gland packing.
4 stands for G-P 3-way.
7 stands for Lubricated.
8 stands for L-3-way.
9 stands for Pressure balance.
6 - Seat materials
F stands for PTFE.
H stands for stainless
steel.
Y stands for STL..
7 - Nominal pressure
For GB valves, the figure is 10 times more
than
the nominal pressure (MPa).
For ANSI valves, the figure is class such
as
150Lb, 300Lb,etc.
For JIS valves, the figure is class such
as
10K, 20K, etc.
8 - Body Materials
C stands for carbon steel.
P stands for 304 S.S.
R stands for 316 S.S.
A stands for Ti alloy.
For example:
X13W-16C means the plug valves with lever speration,
inner thread connection, straight construction, seat machined DN
the body, PN1.6MPa and C.S. body
X347F-25P means the plug valves with manual actrator,
flanged connection, straight construction, PTFE seat, PN2.5MPa and
Cr-Ni S.S. body.
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