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RPTFE seal concentric flange butterfly valve gear box operation
Concentric Flange Butterfly Valve

RPTFE seal concentric flange butterfly valve gear box operation

Type: Concentric Resilient Seated

Series: D341F

Size: DN40-DN2000/2”-80”

Pressure rating: PN6/PN10/PN16/5K/10K/150LB

Design standard: EN 593

Service: OEM&ODM

Lined with polytetrafluoroethylene (PTFE), the centerline flange butterfly valve is widely applied in pipelines handling strong corrosive substances.

    Valve Type:

    Flange butterfly valve

    Structure:

    Concentric

    Standard:

    EN593

    Workmanship:

    Investment casting

    Sealing direction:

    Bidirectional

    Sealing grade:

    Zero leakage

    Temperature:

    -20°C<T<120°C

    Operation:

    Handle/Lever

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    ① Thick shell, heavy-type

    ② High purity rubber, high wear resistance

    ③ Zero leakage standard

    ④ Various size in stock

    Characteristics

    The midline design significantly reduces the opening and closing torque, making manual operation more effortless. Pneumatic/electric drive has lower energy consumption and faster response (pneumatic opening and closing ≤ 2 seconds); The valve plate and valve stem are connected without pins, and flange disassembly and assembly do not require special tools. The lining layer can be repaired or replaced separately after wear, without the need to replace the valve body as a whole.

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    Advantages

    1. High maintenance convenience

    The flange connection is easy to disassemble and assemble, and vulnerable parts such as valve plates and seats can be replaced separately without the need to disassemble the valve body as a whole; After the lining layer wears out, it can be re sprayed and repaired to reduce equipment 2. maintenance costs and downtime.

    2. Automation and explosion-proof compatibility

    Supports DCS/PLC system integration control, can be paired with pneumatic and electric actuators; Optional explosion-proof certification execution mechanism can be selected to meet the safety requirements for use in flammable and explosive scenarios such as chemical, oil and gas industries.

    3. Sanitary adaptability

    Food grade PTFE lining meets FDA standards, with smooth inner walls that do not hang materials and are not prone to bacterial growth. It can be used in fluid delivery systems with high hygiene requirements such as pharmaceuticals, food and beverages

    Packing

    Standard export wooden case packaging

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    Application Scenarios

    Widely used in wastewater treatment, exhaust gas recovery systems, electrolyte circulation, acid pickling tank medium cut-off, high-temperature steam or corrosive gas regulation, but requiring temperature resistant lining.

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    Material

    Part name

    Meterial name

    Valve body Cast iron,ductile iron,stainless steel
    Valve disc Ductile iron,Stainless steel,aluminium alloy
    Valve stem Carbon steel,stainless steel
    Valve seat Rubber
    Seal O Type rang

    Dimension

    dimension

    DN

    L

    L1

    D

    D1

    H

    H1

    b

    n-φd

    mm

    inch

     

     

    PN1.0MPa

    PN1.6MPa

     

     

     

     

    PN1.0MPa

    PN1.6MPa

    50 2" 108 180 125 125 150 326 83 20 4-φ18 4-φ18
    65 21/2" 112 180 145 145 165 344 93 20 4-φ18 4-φ18
    80 3" 114 180 160 160 200 363 100 22 4-φ18 8-φ18
    100 4" 127 180 180 180 220 396 114 22 8-φ18 8-φ18
    125 5" 140 180 210 210 250 421 125 24 8-φ18 8-φ18
    150 6" 140 180 240 240 280 453 143 24 8-φ23 8-φ23
    200 8" 152 270 295 295 335 578 170 26 8-φ23 12-φ23
    250 10" 165 270 350 355 405 638 198 26 12-φ23 12-φ28
    300 12" 178 380 400 410 455 731 223 32 12-φ23 12-φ28
    350 14" 190 380 460 470 525 783 270 36 16-φ23 16-φ28
    400 16" 216 450 515 525 580 888 300 38 16-φ28 16-φ31
    450 18" 222 480 565 585 640 958 340 40 20-φ28 20-φ31
    500 20" 229 480 620 650 705 1005 355 42 20-φ28 20-φ34
    600 24" 267 480 725 770 825 1128 410 48 20-φ30 20-φ36
    700 28" 292 640 840 840 920 1476 478 53 24-φ30 24-φ36
    800 32" 318 640 950 950 1020 1533 525 58 24-φ33 24-φ39
    900 36" 330 750 1050 1050 1120 1655 585 65 28-φ33 28-φ39
    1000 40" 410 850 1160 1170 1340 1765 640 76 28-φ36 28-φ42
    1200 48" 470 850 1380 1390 1560 1995 755 85 32-φ39 32-φ48
    1400 56" 530 1000 1590 1590 1760 2310 910 103 36-φ42 36-φ48
    1600 64" 600 1000 1820 1820 1970 2595 1030 123 40-φ48 40-φ56
    1800 72" 697 1100 2020 2020 2180 2810 1140 135 44-φ48 44-φ56
    2000 80" 760 1100 2230 2230 2345 3100 1250 145 48-φ48 48-φ62

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