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FCRV Ceramic C Rotary Valve

Currently, in various industries, certain highly erosive conditions require strict sealing while dealing with media that are viscous, prone to caking, scaling, crystallizing, or containing large particles, causing various valves to clog. This calls for a valve that can function both as a control valve and a shut-off valve, with excellent sealing performance, smooth operation, and the ability to overcome various clogging situations.

Compared to the eccentric and double eccentric valves on the market, the KOWOV series ceramic C valve features a non-eccentric design, ensuring no erosion of the valve stem during small opening angles, thereby providing maximum protection to the valve stem.

    FCRV CERAMIC C ROTARY VALVE

    • FCRV CERAMIC C ROTARY VALVE (3)

    • The ball crown of the valve maintains close contact with the seat, allowing for the shearing of adhered materials and debris on the sealing pair, ensuring the cleanliness of the sealing surfaces. The inherent self-lubricating properties of ceramics ensure that the ball core and the seat do not stick to the medium. The design adopts a structural configuration with upper and lower support shafts for positioning. The support shafts are statically fitted with the valve body, preventing any tilting of the C-rotary. The valve stem is set inside the upper support shaft, and the thrust of the medium on the C-rotary is borne by the upper and lower support shafts, with the valve stem only transmitting the torque for opening and closing the ball valve.

    Structural characteristics

    • Special C-type structure design with ball core mechanically connected and embedded by C-type lugs and ceramic ball crown, protecting lugs from erosion.

      Concentric design keeps ceramic ball crown in close contact with the seat, scraping off adhered materials and ensuring sealing performance.

      C-type lugs directly bear rotational torque, ideal for harsh conditions with crystallization, scaling, caking, high solid content, and clogging.
      Cavity-free design prevents material accumulation inside the valve.

      Fixed ball design prevents ball core movement under pressure, resulting in low operating torque, achieving ANSI Class VI sealing.

      All flow passages in contact with the medium are lined with ceramic, ensuring corrosion resistance.

      Anti-blowout stem design ensures valve safety and reliability.
    • FCRV CERAMIC C ROTARY VALVE (4)

    Main Technical Parameters

    Nominal diameter Ball bore Shape DN40 (1 1/2") DN50 (2") DN65 (2 1/2") DN80 (3") DN100 (4") DN125 (5") DN150 (6") DN200 (8") DN250 (10") DN300 (12") DN350 (14")
    DN50 2" round 62
    DN65 2 1/2" round 62 97
    DN80 3" round 60 95 155
    DN100 4" round 55 90 152 249
    DN125 5" round 86 145 249 389
    DN150 6" round 137 238 380 608
    DN200 8" round 230 366 600 875
    DN250 10" round 354 588 865 1377
    DN300 12" round 567 850 1350 2515
    DN350 14" round 839 1322 2465 3383
    DN400 16" round 1280 2385 3296 4651
    • product-description1
    • product-description2
    Nominal diameter Exterior Size GB PN10 Flange Dia. HG PN10 Flange Dia. Weight (Kg)
    Inch mm dn L W H D1 D2 D3 N-M T f D1 D2 D3 N-M T f
    1/2" 15 15 108 166 94 45 65 95 4-M12 14 2 45 65 95 4-M12 14 2 4.5
    3/4" 20 15 117 166 94 58 75 105 4-M12 16 2 58 75 105 4-M12 16 2 6
    1" 25 20 127 166 97 68 85 115 4-M12 16 2 68 85 115 4-M12 16 2 7
    1 1/4" 32 25 140 166 104 78 100 140 4-M16 16 2 78 100 140 4-M16 16 2 15
    1 1/2" 40 32 165 237 125 88 110 150 4-M16 16 3 88 110 150 4-M16 16 3 23
    2" 50 40 178 237 134 102 125 165 4-M16 18 3 102 125 165 4-M16 18 3 32
    2 1/2" 65 50 190 237 145 122 145 185 8-M16 19 3 122 145 185 8-M16 19 3 39
    3" 80 65 203 270 169 138 160 200 8-M16 21 3 138 160 200 8-M16 21 3 45
    4" 100 80 229 191 158 180 220 8-M16 22.3 3 158 180 220 8-M16 22.3 3 59
    5" 125 100 254 407 188 210 250 8-M16 23 3 188 210 250 8-M16 23 3 69.5
    6" 150 100 267 407 212 240 285 8-M20 26 3 212 240 285 8-M20 26 3 90
    8" 200 150 419 292 520 248 268 295 340 360 8-φ22 8-M20 22 33 2 3 268 262 295 290 340 360 8-φ22 8-M20 22 33 2 3 200
    10" 250 200 457 580 320 350 395 12-M20 24 2 320 350 395 12-M20 24 2 290
    Item Y-ZrO Y-TZP Mg-ZrO₂ M-PSZ 90 Al₂O₃ 95 Al₂O₃ 99 Al₂O₃ Si₃N₄ SiC Common ceramics Carbide alloy 45# Steel

    Density g/cm³

    6.0~6.05 5.72~5.74 3.45~3.55 3.6~3.75 3.9~3.95 3.2~3.33 3.15~3.25 3.0~3.5 14~18 7.8

    Hardness HRA/C

    87 85 90 90 92 92 94 50~60 70 36

    Flexural Strength MPa

    1150 900 350 370 450 1200 470 20~50 2000 804

    Fracture Toughness (KIC) MPa√m

    10~12 13~15 3.4 3.6 4.5 7 4 -- 20 101

    Compressive Strength MPa

    2000 1800 1700 2000 2200 2800 -- -- 4000 2000

    Thermal Shock Resistance °C

    87 110 -- -- 50 200 75 -- 500 500

    Thermal Expansion Coefficient ×10⁻⁶/°C

    9.6 10 7.6 7.8 8.3 3.4 4 -- 7 12

    Modulus of Elasticity GPa

    200 200 310 330 350 300 400 -- 600 --

    Crushing Load KN (Φ6mm)

    15 10 3.5 3.6 4 18 3.5 -- -- --

    Using Temperature °C

    <160 <1000 <1200 <1250 <1500 <1500 <1500 -- -- <560

    Water Absorption

    0 0 0.02% 0.01% 0.00% 0 0.50% 5~10% -- --

    Corrosion Prevention

    Good Good Good Good Good Good Good Flooey Good Flooey
    *Data sources: test results or issued original documents.
    product-description1
    ANTI-CORROSIVE PERFORMANCE REFERENCE TABLE
    Media Temperature ZrO₂ 99.9% Al₂O₃ SiC Si₃N₄ Graphite PTFE Fluororubber SS304 SS316 HC
    20% HCL 60°C A A A B A A A C C B
    20% HCL 95°C A A A C A A A -- -- C
    90% H₂SO₄ 60°C A A A A A A A C C B
    90% H₂SO₄ 95°C A A A B A A A C C C
    60% H₃PO₄ 60°C A A A C A A A C C A
    60% H₃PO₄ 95°C A A A C A A A C C A
    10% HF 60°C C B A A A A A C C B
    46% HF 95°C C C A C A A A -- -- C
    60% HNO₃ 60°C A A A C B A A A A C
    60% HNO₃ 95°C A B A C B A A B B C
    30% NaOH 60°C A B A B A A A A A A
    30% NaOH 95°C B B A C A A A A B A
    A ≤ 0.1mmg/cm²/day: Can be ignored or has no corrosion, recommended for use.
    B = 0.1~0.3mmg/cm²/day: Slight or very minor corrosion, use with caution.
    C ≥ 0.3mmg/cm²/day: Significant corrosion, not recommended for use.
    -- : Intense corrosion, to the extent that measurement is not possible.

    Flow Characteristic Sheet of Ceramic Ball Valve
    Core Specifications O-type ball core V60° ball core V45° ball core V30° ball core
    DN15 10 7 4 3
    DN20 18.2 12 8 5
    DN25 29 18 12 8
    DN32 47 30 20 13
    DN40 73 46 31 21
    DN50 114 72 48 32
    DN65 181 115 76 51
    DN80 292 185 123 82
    DN100 456 289 192 128
    DN125 712 452 300 201
    DN150 1025 650 432 289
    DN200 1822 1156 769 514

    Typical Applications

    • FCRV CERAMIC C ROTARY VALVE (5)
    • ● Titanium Dioxide (TiO₂) Industry:
      o Acidic slurries in the sulfate process for TiO₂ production.
      o TiCl₄ slurry and sludge in the chloride process.
      o Chlorine with biochemical substances and TiO₂ powder.
      ● Salt Chemical Industry:
      o Salt sludge, caustic mud, carbide residue slurry, waste sludge, sand-removed ammonia wastewater.
      ● Petrochemical Industry:
      o Molecular sieve pipelines in catalyst production units.
      o Fluidized catalytic cracking units (Al₂O₃ powders).
      ● Mining & Metallurgy:
      o Transport and blending of copper concentrates; safety valves for copper transport bins.
      ● Dye Manufacturing:
      o TiO₂-containing solutions at specified concentrations, sulfuric acid solutions, and diluted acid solutions.
      ● Pulp & Paper Industry:
      o Kaolin, feldspar, talc, quartz, MgO, CaCO₃, and other paper fillers.
      Bleaching agents, NaOH, and filtrates.

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