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PN6 Flanged Ductile Iron Butterfly Valve, Electric Actuator
Flange Butterfly Valve
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PN6 Flanged Ductile Iron Butterfly Valve, Electric Actuator

Engineered for automated, large-diameter flow control in mainline water, power, or industrial applications, this valve solution combines flange butterfly valve with a fully integrated electric actuator. TIANJIN KEFA VALVE manufacture and assemble this complete package in-house, delivering a ready-to-commission solution designed for reliable, long-term operation.

The valve features a robust double-flange design for secure, leak-tight installation, while the factory-mounted and calibrated electric actuator ensures precise control and dependable performance without field alignment concerns.

Built & Assembled as a Complete Unit:

Flange Butterfly Valve Construction:

Size & Design: DN800, Double Flange type PN6/10/16 rating.

Body & Disc: Ductile Iron with epoxy coating (standard). Stainless steel options available.

Seat: Resilient EPDM liner (standard). NBR, Viton, or PTFE options for specific media.

Actuator & Control: Type: Multi-turn electric actuator, 230VAC/380VAC (standard), or others.

Features: On/Off or modulating control. IP67 enclosure, manual override, integrated control unit with local HMI.

Our Integrated Manufacturing & Testing Process:

As the direct manufacturer, we control the entire production chain—from casting and machining the valve body to assembling and debugging the actuators. Each assembly undergoes complete mechanical cycling and hydrostatic pressure testing before shipment, ensuring seamless integration and immediate readiness for your system.

A complete, large-bore automated valve solution—built, tested, and shipped from our factory. Request full technical documentation or a project-specific quotation for your power, water, or industrial application.

Series: KF-SFL-T

Type: Concentric Resilient Seated

Size: DN50-2000mm, NPS 2”-80”

Design Standard: EN 593, API 609

Pressure Rating: PN6, PN10, PN16, 150LB, 125LB

Certificate: ISO, CE, WRAS, ACS

Sample: Available

Service: OEM & ODM

    Features

    Double Flange Type

    Simple structure & Stable connection

    Seat Design

    Vulcanized Rubber Lined

    Operation Cycles

    Over 100,000 times

    Leakage Level

    Bubbles-tight sealing with no leakage

    Low Torque

    Operation easy and flexible

    Bidirectional Sealing

    Any installation position

    Low Flow Resistance

    Improve fluid efficiency and reduce energy consumption

    Rich Sealing Materials

    Rich variety over 5 types

    Coating Grade

    Conventional and special conditions of C1-C5 & CX

    Certificates

    ISO9001, CE, WRAS, ACS

    Specifications

    Design Standard

    EN 593, API 609

    Top Flange Standard

    ISO 5211

    End Flange Standard

    EN 1092 PN6/10/16, ANSI 150LB, MSS SP44, AWWA C207

    Face to Face Dimension

    EN 558-1 Series 13

    Testing Standard

    API 598, EN12266

    Temperature

    -20℃~120℃(depends on the sealing material)

    Body Material

    Ductile Iron: GGG40, GGG50, ASME A536, ASME A395

    Disc Material

    Ductile Iron, Stainless Steel, Aluminum Bronze

    Shaft Material

    Stainless Steel, Inconel

    Seat Material

    EPDM, NBR, WRAS EPDM, VITON, Silicone

    Operator

    Lever, Gearbox, Pneumatic, Electric Actuator

    Dimension

    Drawing1-模型_page-0001 (14)

    Size

    D

    PN10

    PN16

    ANSI 150LB

    Top      
    Flange

    Ф D 1

    n - Ф d

    Ф D 1

    n - Ф d

    Ф D 1

    n - Ф d

    DN50

    108

    125

    4-19

    125

    4-19

    120.6

    4-19

    F07

    DN65

    112

    145

    4-19

    145

    4-19

    139.7

    4-19

    F07

    DN80

    114

    160

    8-19

    160

    8-19

    152.4

    4-19

    F07

    DN100

    127

    180

    8-19

    180

    8-19

    190.5

    8-19

    F07

    DN125

    140

    210

    8-19

    210

    8-19

    215.9

    8-22.4

    F07

    DN150

    140

    240

    8-23

    240

    8-23

    241.3

    8-22.4

    F07

    DN200

    152

    295

    8-23

    295

    12-23

    298.4

    8-22.4

    F10

    DN250

    165

    350

    12-23

    355

    12-28

    361.9

    12-25.4

    F10

    DN300

    178

    400

    12-23

    410

    12-28

    431.8

    12-25.4

    F10

    DN350

    190

    460

    16-23

    470

    16-28

    476.2

    12-28.4

    F10

    DN400

    216

    515

    16-28

    525

    16-31

    539.7

    16-28.4

    F14

    DN450

    222

    565

    20-28

    585

    20-31

    577.8

    16-31.8

    F14

    DN500

    229

    620

    20-28

    650

    20-34

    635

    20-31.8

    F14

    DN600

    267

    725

    20-31

    770

    20-37

    749.3

    20-35.1

    F16

    DN700

    292

    840

    24-31

    840

    24-37

    863.3

    28-35.1

    F25

    DN800

    318

    950

    24-34

    950

    24-41

    977.9

    28-41.1

    F25

    DN900

    330

    1050

    28-34

    1050

    28-41

    1085.8

    32-41.1

    F25

    DN1000

    410

    1160

    28-37

    1170

    28-44

    1200

    36-41.1

    F25

    DN1200

    470

    1380

    32-41

    1390

    32-50

    1422.4

    44-41.1

    F30

    DN1400

    530

    1590

    36-44

    1590

    36-50

    1651

    48-47.6

    F35

    DN1600

    600

    1820

    40-50

    1820

    40-57

    -

    -

    F35

    DN1800

    670

    2020

    44-50

    2020

    44-57

    2095.5

    60-44.5

    F40

    DN2000

    760

    2230

    48-50

    2345

    48-62

    -

    -

    F40

     

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