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Daniel, Series 788 Digital Control Valve, 6 IN (DN150)
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Preferred worldwide for loading and off-loading of liquid petroleum products, the Daniel™ 788 Digital Control Valve tightly controls the flow rate and provides batching capabilities when installed with an electronic batch control device or preset.
The high-capacity valve offers smooth linear action for maximum flow and minimum pressure drop with the preset automatically controlling low-flow start-up, high-flow rate control, low-flow shutdown and final shutoff. The valve has no diaphragms or stuffing boxes and the seat and seat ring can be removed as a cartridge assembly to simplify maintenance. An aggressive-products option is available for alcohols, MTBE, TAME, reformulated fuels and other challenging additives or oxygenates.
Daniel, Series 788 Digital Control Valve, 6 IN (DN150)

Specs

Line Size
DN50 to DN200 (2-in to 8-in)
Fluid Type
Liquid
Operating Temperature Range
-29°C to +66°C (-20°F to +150°F)
Operating Pressure Range
ANSI 150 to 300
Materials: Valve Body
Carbon Steel, ASTM A352 GR LCC
Materials: Valve Cylinder
DN50 to DN 200 (2-in to 4-in): Stainless Steel, ANSI 150 to 600; DN250 to DN 300 (6-in to 8-in) Carbon Steel, Nickel Coated, ANSI 150 to 600
Materials: Valve Piston
Standard: Stainless Steel
Materials: Seat Ring
DN50 to DN200 (2-in to 6-in) Stainless Steel; DN300 (8-in) Carbon Steel, Nickel Coated
Materials: O-Rings
Standard: Viton; Optional: Neoprene, EPR, Kalrez / Teflon AP (Aggressive Products)

Features

  • Effective planning and execution of maintenance and product lifecycle strategies is essential to meeting production and metering targets, and keeping costs low. The right mix of maintenance activities will help you operate safely, consistently and econom
  • Avoid damage due to shock pressure with adjustable control of closing speed
  • Reduce pressure drop and maintenance compared to axial flow valves with high-capacity, 45° piston operation
  • Control pressure from 60 to 9928 kPa (10 to 1440 psi) within ±13.8 kPa (±2 psi) of setpoint
  • Improve reliability with positive O-ring seal and valve seats not affected by fluid viscosity and pressure drop
  • Protect equipment and personnel with positive shutoff (ANSI Class VI) and fail-safe closure upon power loss
  • Maximize uptime with all internal parts housed in a cartridge assembly; no need to remove the valve from the line
  • Minimize wear-related maintenance with a simple design featuring no diaphragms or stuffing boxes

Education

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