Daniel Series 700 External Pilot Operated Liquid Control Valves

Daniel

Daniel Series 700 External Pilot Operated Liquid Control Valves

Daniel

Precisely control the flow of liquid petroleum products with Daniel™ Series 700 External Pilot Operated Control Valves that ensure positive sealing, smooth linear action and uniform speed of response. This versatile, cost-effective line enables a single valve body to be equipped with a variety of external pilots, allowing one valve to serve multiple functions. Unit-built construction allows all internal parts to be removed without interfering with the valve body or connections, simplifying maintenance and maximizing uptime.

Specifications

Line Size
DN50 to DN400 (2-in to 16-in)
Fluid Type
Liquid
Operating Temperature Range
-29°C to +66°C (-20°F to +150°F)
Operating Pressure Range
ANSI 150 to 600
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 400 (6-in to 16-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 to DN400 (8-in to 16-in) Carbon Steel, Nickel Coated
Materials: O-Rings
Standard: Viton; Optional: Neoprene, EPR, Viton, all Buna-N, Kalrez / Teflon AP (Aggressive Products)

Features

  • Achieve precise flow rate and batch control with high-performance balanced piston principle, spring-biased design
  • Avoid damage due to shock pressure by adjusting closing speed; main piston ensures uniform opening and closing
  • Ensure smooth linear action with maximum flow and minimum pressure drop with high-capacity, 45° valve body
  • Control pressure from 10 to 1440 psi (60 to 9928 kPa) within ±2 psi (±13.8 kPa) of setpoint
  • Safeguard equipment and personnel with positive shutoff (ANSI Class VI) and fail-safe closure upon power loss
  • Improve reliability with positive O-ring seal and valve seats that are unaffected by fluid viscosity or pressure drop
  • 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

Documents & Drawings