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Трёхэксцентриковый фланцевый дисковый затвор

Flanged Butterfly Valve

Трёхэксцентриковый фланцевый дисковый затвор

Size Range: DN50-DN2000

Material: SS304, SS316

Connection Options: Flanged End

Pressure: 0.6Mpa ~ 4.0Mpa

Working Temperature: -29°C to 425°C

Sealing Options: SS304 + Graphite

Applicable Medium: Water, oil, gas, acetic acid, nitric acid

Product Overview

A flanged metal seated butterfly valve is a robust flow control valve designed for high-temperature, high-pressure, and abrasive applications. Its metal-to-metal seat design provides excellent wear resistance, fire safety, and long service life where soft-seated valves are unsuitable. Commonly used in oil and gas, power plants, chemical processing, mining, and steam systems, this valve offers reliable shut-off, structural stability, and dependable performance in demanding industrial pipelines.

Product Features

  • Metal-to-metal sealing for high temperature, high pressure, and abrasive service
  • Flanged body design ensures strong pipeline connection and structural stability
  • Excellent wear and fire resistance, suitable for harsh operating conditions
  • Reliable shut-off performance with long service life
  • Ideal for oil & gas, power generation, chemical, mining, and steam applications

Specification Parameters

ITEMSPECIFICATION
Nominal Pressure (MPa)PN0.6PN1.0PN1.6PN2.5PN4.0
Shell Test Pressure(MPa)PT0.9, PT1.5, PT2.4, PT3.8, PT6.0
Low-Pressure Closure Test0.6 MPa
Suitable MediumWater, Oil, Gas, Acetic Acid, Nitric Acid
Suitable Temperature−29 °C ~ 425 °C

Product parts materials

MATERIAL NAMECARBON STEELSTAINLESS STEEL
BodyWCBCF8CF8M
DiscWCBCF8CF8M
Stem13Cr304316
Seat Ring304 + Graphite304 + Graphite304 + Graphite
PackingGraphiteGraphiteGraphite

Flanged Butterfly Valve Diagram

The main shape and connection dimensions in (mm)

NOMINAL DIAMETERSTRUCTURE LENGTH (STANDARD)EXTERNAL DIMENSIONCONNECTION DIMENSION (STANDARD)
mmSHORT LLONG LHD343D673D943PN0.6 MPaPN1.0 MPa
H1A1B1L±2ABH3A3B3DD1Z-dDD1Z-d
5010895011235018020043161675302502551401104-141651254-18
6511287011537018020046166755302502551601304-141851454-18
8011479012038018020046173965652502551901504-182001608-18
100127710138420180200521871146002502552101704-182201808-18
125140630164460180200561941266402502552402008-182502108-18
150140550175555270280562161407053003152652258-182852408-22
200152510200760400425602561647753003153202808-183402958-22
2501654702438304004256828620594530031537533512-1839535012-22
30017843025089545056078327237107030031544039512-2244540012-22
35019039028095045056078348260114030031549044512-2250546016-22
4002163503051190535580121030031554049516-2256551516-26
4502223303501255535580133557571459555016-2261556520-26
5002293103801305535580141557571464560020-2267062020-26
6002672904451340570660160565681075570520-2678072520-30
7002922704801520750550184465681086081024-2689584024-30
8003182505301710750550204065681097592024-30101595024-33
900330230580181075055022557858631075102024-301115105028-33
1000410210650196090075023807858631175112028-301230116028-36
12004702007602250100092526407858631405134032-331455138032-39
1400530190850243510009252886  1630156036-361675159036-42
16006001801030278010009253156  1830176040-361915182040-48
18006701701230302011009803421  2045197044-392115202044-48
20007601501350327011009803685  2265218048-422325223048-48
NOMINAL DIAMETER (mm)STRUCTURE LENGTH (STANDARD)EXTERNAL DIMENSIONCONNECTION DIMENSION (STANDARD)
mmLHD343D643D943 PN1.6 MPaPN2.5 MPa
H1A1B1H2B2A2H3A3B3A3B3DD1Z-dD
50108112350180200625245725302502552502551651254-18165
65112115370180200625245725302502552502551851454-18185
80114120380180200645245725652502552502552001608-18200
100127138420180200675355926002502552502552201808-18235
125140164460180200715355926402502552502552502108-18270
150140175555270280800355927053003153003152852408-22300
20015220076040042585025017077530031530031534029512-22360
25016524383040042592525017094530031530031540535512-26425
3001782508954505601035450220107030031530031546041012-26485
3501902809504505601070450220114030031530031552047016-26555
40021630511905355801190450220121030031530031558052516-30620
45022235012555355801250650280133557571457571464058520-30670
50022938013055355801290650280141557571457571471565020-33730
60026744513405706601455850380160565681065681084077020-36845
70029248015207505501585850380184465681065681091084024-36960
8003185301710750550170012503802040656810656810102595024-391085
90033058018107505501865125038022557858637858631125105028-391185
100041065019609007502015125038023807858637858631255117028-421320
1200470760225010009252250125038026407858637858631485139032-481530
14005308502435100092528861685159036-481755
160060010302780100092531561930182040-561975
180067012303020110098034212130202044-562195
200076013503270110098036852345223048-622425
NOMINAL DIAMETERSTRUCTURE LENGTH (STANDARD)EXTERNAL DIMENSIONCONNECTION DIMENSION (STANDARD)
mmSHORT LLONG LHD343D643D943PN4.0MPa
H1A1B1H2B2A2H3A3B3DD1Z-d
501081501123501802006252501705302502551651254-18
651121701153702702806252501705302502551851458-18
801141801203802702806452501705652502552001608-18
1001271901384202702806752501706002502552351908-22
1251402001644603804207154502206402502552702208-26
1501402101755553804208004502207053003153002508-26
20015223020076040042585045022077530031537532012-30
25016525024383040042592545028094530031545038512-33
3001782702508954505601035650280107030031551545016-33
3501902902809504505601070650280114030031558051016-36
40021631030511905355801190650280121030031566058516-39
4502223303501255535580133557571468561020-39
5002293503801305535580141557571475567020-42

Specification Applications

  • Oil & Gas pipelines – reliable shut-off under high pressure and temperature
  • Power generation systems – steam, boiler, and thermal oil service
  • Chemical & petrochemical plants – corrosive and high-temperature media
  • Mining & slurry handling – abrasive fluids and solids-laden flow
  • Industrial steam networks – stable performance with frequent thermal cycling

Управление потоком

Решения для трубопроводных систем

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Приводы клапанов

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