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DHCV Control Valve

DHCV: Control Valve

"เหมาะสำหรับงานที่มีอนุภาคของแข็งเจือปน ด้วยบอดี้โครเมียมเคลือบ HVOF"
• Penetrated CVD coating
    Hardness HRC 80-84,suitable for abrasive conditions like solid particles, not applicable for corrosive conditions.

• Hard chromium plating
    Fine wear resistance and corrosion resistance, Hardness Rockwell HRC 55-62, for general service.

• HVOF coating (Tungsten carbide coating I Chrome carbide coating I Ni-Cr fusing)
    HRC 61H2 Excellent wear resistance and corrosion resistance, applicable for solid particles or severe conditions requiring long service life.

• Satellite based alloy welding coating
    Hardness HRC 40-55, superior abrasion and erosion resistance.
• End Connection
    Wafer/Flange structure: 1"-10" (DN25-DN250)
    Flange structure: 12"-20"(DN300-DN500)

• Normal Pressure Ratings
    ANSI 150, ANSI 300, ANSI 600
    DIN PN10, PN16, PN25, PN40, PN64

• Design Standard
  1. Flange standard: ASME B 16.5, EN1092-1:2001
  2. Pressure-Temp rated Valve: ASME B 16.34-2003, 1507005-1
  3. Face to face length standard
    Wafer: special size
    Flange: ISA S75.04-1995, IEC/DIN 534-3-2
  4. Applicable Temp range
    -20°F-482°F (-29°C-250°C) for soft seat
    -20°F-662°F (-29°C-350°C) for Metal seat
    -20°F- 1022°F (-29°C-550°C) for High temp metal seat
  5. Seat and shell test standard
    Each DHCv valve undergoes hydraulic test with 1.5 X pressure rating as shell test pressure and 1.1 X pressure rating as seat tightness test pressure. Test medium is water. (Nitrogen test is applicable on request.)
  6. Leakage class : IEC 60534-4, ANSI/FCI 70-2, ISO 5208
    * Optional Class V and Class VI on request.
DHCV Control Valve Catalogue
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