Ball valve model establishment method instructions

Ball valve model establishment method instructions

Two-plate inner-thread drawing down ball valve
Ball valve type code for Q. before Cryogenic ball valves plus "D", Before the heat-preserve ball valve plus "B".
CODE NO.0123456789
drive model


worm wheel

pneumatic

motor-driven
connecting type
internal threadexternal thread
F
weldbutt clamp

type no.structure type
ball-valve Q
cut-through

angle type
right angle type


float type

L type ball floatT type ball float
fixed ball

The handwheel, handle and spanner driving omit code.

seal or liner material code no. seal or liner material  code no.
steel alloy T Permeability fluorine steel, D
rubber X Hard alloy Y
nylon plastic N rubber liner J
F plastic F line with lead Q
 Tin and bearing alloy (ba type alloy) B enamal C
steel-alloy H permeability boron steel P

The nominal pressure code in Arabic numerals, its value is nominal pressure value of 10 timesd for mpa as its unit. Used in power industry, when the highest temperature medium of the valve is more than 530 ° c, its value is the work unit for mpa pressure value of 10 times.

body materialgrey cast ironnodular cast ironcarbon steelsteel alloy(Cr-Mo steel)stainless steelspecial alloy
code no.ZQWCBWC1LCBLC3WC6WC9C5/C12commonCF8CF8MCF3CF3MM
CC1C2C3I6I9I5PR1R2R3R4

ball-valve performance rule

test itemtest pressure(MPa)test time(S)test temp.(oC)test medium
shell test150Lb、1.6MPa2.4120 (DN≤14")≤52oC(normal temp.)Water (rust) kerosene or viscosity can contain less than water  other suitable for medium
300Lb、2.5、4.0MPa6.0
600Lb、10.0MPa15.0
900Lb、15.0MPa22.5
1500Lb、25.0MPa37.5
2500Lb、42.0MPa63.0
low-pressure seal test150Lb、1.6MPa0.6120≤52oC(NORMAL TEMP.)Air or inert gases
300Lb、2.5、4.0MPa
600Lb、10.0MPa
900Lb、15.0MPa
1500Lb、25.0MPa
2500Lb、42.0MPa
high pressure seal test150Lb、1.6MPa1.76120≤52oC(normal temp.)Water (contain anti-rust agent) kerosene or other    medium viscosity less than water 
300Lb、2.5、4.0MPa4.4
600Lb、10.0MPa11
900Lb、15.0MPa16.5
1500Lb、25.0MPa27.5
2500Lb、42.0MPa46.2

main parts material and performance

bodyrodballseal surfacegasket(ring)packingworking temp.applicable medium
WCB1Cr131Cr131Cr13 Alloy material ontologyflexible graphite stainless steel plus flexible graphite F304 F316flexible graphite kniting graphite-29~425oCwater,steam oil
WC615CrMo15CrMo-29~595oC
WC925Cr2MoV25Cr2MoV
LCB304304-46-345oC
CF8304304-196~600oCpart acid,alkaline


 

(Source: Ball valve model establishment method instructions)