Metal Seated Floating Ball Valve


Design features
 
 
 

Norminal size:1/2" through 8" full port
Pressure Class:ASME Class 150-600
Basic Design:API 608、BS 5351
Face to face dimension:ASME B16.10
Standard materials such as:carbon low alloy,stainless stell Special alloys,exotic matals and trims(Hastelloy,lnconel,Monel,Duplex,etc)

Conditions Requiring Severe service Solution

High temperature and large thermal transients Cryogenic operations
Abrasive media,catalyst,coking,fines,etc.Ultra high pressure or vacuum
High cycling than 10000 times per year Severe Corrosion.
Rapid and emergency shutdown
Lethal materials,category "M"

Option

High pressure valve and seat design.
Purge ports
Extended bonnet and stem
Safet lock-out
Fugitive emissions control
Arcitron ball opening shape to minimize seat erosion

Actuators

Levers and manual gear boxes,hand wheel
Complete operated selection of electric,peneumatic and hydraulic systems
Accessories such as:indicators,solenoids,limit switches,overrides

Typical Seats Constructions And Material 
Standard seatHigh temperture seat-1
 
 
NPS:1/2"~11/2"NPS:1"-8"

Ball seat:Stainless steel+hard facing

Seat seal:R-PTFE

Temp range:-50℃~+250℃/-58°F~+482°F

Ball seat:Stainless steel+hard facing

Seat seat:Graphite

Spring:INCONEL X-750

Temp range:-200℃~+550℃/-58°F~+1022°F

Locked seatHigh temperture seat-2
 
 
NPS:1/2"~11/2"NPS:1/2"-8"

Ball seat:Stainless steel+hard facing

Seat seal:R-PTFE

Temp range:-50℃~+250℃/-58°F~+482°F

Ball seat:Stainless steel+hard facing

Seat seat:Graphite

Spring:INCONEL X-750

Temp range:-200℃~+550℃/-58°F~+1022°F

Applications of matal seated ball valve
TypeSizeTemperature RangeAuxiliary SealBall/Seats SealWorking Condition
Floating Ball Valve

Pressure Range

Class 150,300,600

NPS1/2"~8"

-50℃~250℃PEEKBall:nitriding or Nickel base/Co base alloy overlay Seat:Stellited

1.finishing mixture

2.solidcontaining fluids

3.hight temperature and hight pressure

-50℃~380℃Graphite
-50℃~550℃GraphiteBall:Nickel Base/Co basealloy overlay Seat:Stellited
Material speciation 
PartCarbon SteelStainless Steel
Temp、Range-29℃~250℃250℃~425℃-29℃~250℃250℃~550℃
BodyASTM A216 WCBASTM A351 CF8M
BallASTM A182 F304/coatingASTM A182 F316/coating
StemASTM A182 F6aASTM A182 F316
SeatASTM A182 F316/Stellite OverlyASTM A182 F316/Stellite Overly
GasketPEEKGraphite+304S.S.PEEKGraphite+316S.S.
Gland PackingPEEKGraphite+304S.S.PEEKGraphite+316S.S.
Stem BearingPEEKGraphite+304S.S.PEEKGraphite+316S.S.
Spring17-7PHInconel x-750316Stainless SteelInconel x-750
BoltASTM A193 B7ASTM A193 B8M
NutASTM A194 2HASTM A194 8M
Seat Seal GasketGraphite+304S.S.Graphite+316S.S.
Valve Design Operating Torques(N.m) 
Size(in)Class 150Class 300Class 600
1/25279103
3/458105150
165155202
1-1/291220285
2115230-
2-1/2224350-
3260370-
4380610-
5620980-
614002300-
826004500-
All torque valves shown on chart are for "wet"(water and other nonlubricating media)on-off service.For "dry" service,multiply values by 1.3. For "lubed" service,multiply valves by 0.95.
 
 
1/2"~3"(Lever operated)4"~8"(Worm gear operated)
Demensions(Class 150) 
Size(in)1/23/411-1/222-1/23468
B(mm)12.71925.438516476102152203
L(mm)108117127165178191203229267292
H(mm)54596490102112121166208246
W(mm)140140160160260260260320400300
Weight(Kg)2.134.16.5911.215.328.65381
Demensions(Class 300) 
Size(in)1/23/411-1/222-1/23468
B(mm)12.71925.438516476102152203
L(mm)140152165190216241283305403419
H(mm)54596490102112121166208246
W(mm)140140160160260260260320400300
Weight(Kg)2.83.64.910.41016.12339.582124
Demensions(Class 600) 
Size(in)1/23/411-1/2
B(mm)13192538
L(mm)165190216241
H(mm)180180250300
W(mm)657085105
Weight(Kg)8.511.516.319.5

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