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KOWOV

FCRV Ceramic C Valve

FCRV Ceramic C Valve, photo 2
FCRV Ceramic C Valve, photo 3
FCRV Ceramic C Valve, photo 4
FCRV Ceramic C Valve, photo 5
FCRV Ceramic C Valve, photo 6

KOWOV manufactures the FCRV ceramic C rotary valve for on-off and control duties in viscous, caking, scaling, crystallizing and large-particle media in TiO₂, salt chemical and pulp and paper plants. It uses a concentric C-shaped rotor with upper and lower support shafts, a geometry that keeps the stem outside the primary erosion path at small openings

Size range
DN50-400
Pressure rating
PN10-160 / Class 150-900
Temperature range
-40 to 456 °C
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Product overview

  • FCRV CERAMIC C ROTARY VALVE (3)
  • The ball crown stays in contact with the seat and shears adhered material from the sealing pair. Ceramic self-lubrication limits sticking. Upper and lower support shafts locate the C-rotor and carry process thrust; the stem transmits opening and closing torque

Design and construction

  • Special C-type structure design with ball core mechanically connected and embedded by C-type lugs and ceramic ball crown, protecting lugs from erosion
    The concentric design keeps the ceramic ball crown in contact with the seat so it can scrape adhered material from the sealing surface
    C-type lugs directly bear rotational torque, suited to 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 process-wetted flow passages are ceramic-lined
    Anti-blowout stem design ensures valve safety and reliability
  • FCRV CERAMIC C ROTARY VALVE (4)

Applications

  • FCRV CERAMIC C ROTARY VALVE (5)

  • Titanium Dioxide (TiO₂) Industry

    Acidic slurries in the sulfate process for TiO₂ production

    TiCl₄ slurry and sludge in the chloride process

    Chlorine with biochemical substances and TiO₂ powder

    Salt Chemical Industry

    Salt sludge, caustic mud, carbide residue slurry, waste sludge, sand-removed ammonia wastewater

    Petrochemical Industry

    Molecular sieve pipelines in catalyst production units

    Fluidized catalytic cracking units (Al₂O₃ powders)

    Mining & Metallurgy

    Transport and blending of copper concentrates; safety valves for copper transport bins

    Dye Manufacturing

    TiO₂-containing solutions at specified concentrations, sulfuric acid solutions, and diluted acid solutions

    Pulp & Paper Industry

    Kaolin, feldspar, talc, quartz, MgO, CaCO₃, and other paper fillers

    Bleaching agents, NaOH, and filtrates

Technical data

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

Application reading

More application reading

Technical resources

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