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STANDARD MATERIAL LIST
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No.
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Parts Name
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Material
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1
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Body
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A216 WCB,
A352 LCB, A351 CF8, CF8M, CF3, CF3M,Duplex
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2
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Seat
Spring
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Inconel
X-7505, SS304, SS316
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3
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Seat Ring
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A105+ENP,
A182 F6, F304, F304L, F316, F316L, F51
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4
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Seat
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PTFE,
R-PTFE, PEEK, PPL
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5
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Ball
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A105+ENP,
A182 F6, F304, F304L, F316, F316L, F51
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6
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O-ring
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NBR, Viton
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7
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Thrust
Washer
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PTFE
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8
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Body
Gasket
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SS304+PTFE,
SS316+PTFE
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9
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Sliding
Bearing
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PTFE,
SS304+Graphite, SS316+Graphite
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10
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Bonnet
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A216 WCB,
A352 LCB, A351 CF8, CF8M, CF3, CF3M,Duplex
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11
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Packing
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PTFE,
Graphite
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12
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Gland
Flange
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A216 WCB,
A351 CF8
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13
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Key
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1045, A182
F304, F304L, F316, F316L
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14
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Stem
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A105+ENP,
A182 F6, F304, F304L, F316, F316L, F51
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15
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Yoke
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A216 WCB
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16
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Nut
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A194 2H,
2HM, 8, 8M
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17
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Stud
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A193 B7,
B7M, B8, B8M
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18
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Vent Valve
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1020+ZN,
A182 F304, F304L, F316, F316L
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19
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Lifting
Lug
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1020
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20
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Seat
Injection
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1020+ZN,
A182 F304, F304L, F316, F316L
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21
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Steel Ball
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Stainless
Steel
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22
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Adjusting
Ring
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1045+N,
A182 F304, F304L, F316, F316L
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23
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Seat
Spring
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1045+N,
A182 F304, F304L, F316, F316L
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24
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Steel
Gasket
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1045+N,
A182 F304, F304L, F316, F316L
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25
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Trunnion
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A105+ENP,
A182 F6, F304, F304L, F316, F316L, F51
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26
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Trunnion
Gasket
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PTFE,
SS304+Graphite
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27
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Adjusting
Nut
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A194 2H, 8
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28
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Adjusting
Stud
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A182 F6, F304
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29
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Drain
Valve
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1020+N,
A182 F304, F304L, F316, F316L
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Emergency sealing
Compound injection holes are designed and
compound injection valves are installed at locations of stem/cap and body
support of side valve.When sealing of stem or seat is damaged to induce
leakage,the compound can be used to do the second time sealing.A concealed
check valve is installed in side of each compound injection valve to prevent
compound from out flowing due to the action of transmitter substance.The top of
the compound injection valve is the connector for fast connection with compound
injection gun.
Reliable sealing
The seat sealing is formed by seat sealing
and metal retainer component.The seat retainer floats axially and low pressure
sealing of valve seat is reached by pre-pressure of spring.In addition,the
piston effect of valve seat is designed reasonably,which realized high pressure
sealing by the pressure of operating medium and realize the interception of
retainer to form the sealing of the body.The expansion graphite ring is
designed to realize sealing under fire condition.
Double block&bleed(DBB)
When ball is full open or close
position,the transmitter substance in center cavity of body can be released by
drainage and emptying devices.In addition,the over loaded pressure in the
center cavity of valve can be released
to low pressure end by self relief seat.
Anti-static and fire safe design
The fire prevention design of valve meets
the requirement in API6FA/API607 standard and the design of the anti-static
conforms to regulations in API6D and BS5351.
Extension stem
For the underground installed valve,the
stem can be lengthened and for the convenience of operation the corresponding
compound injection nozzle and drainage valve can be extended to the top of
valve.
Various driving types
The top pad of valve designed according to
ISO 5211,which is convenient for connection and exchange of various drivers.The
common driving types are manual,electrical,pneumatic and pneumatic/hydraulic.
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Contact LLV
Address: Wuxing Industrial Zone,Oubei Town,Wenzhou City,China
Tel: 0086-577-67138816
Fax: 0086-577-67138806
E-mail: sara@valvellv.com
Skype: saravalve
Skype Online
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