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SERIES 7NL NITROGEN LOADED LIQUID CONTROL VALVES

Specifications

Line Size DN50 to DN400 (2-in to 16-in)

Fluid Type Liquid

Operating Temperature Range -26º C to +205º C (-15º F to +400º F)

Operating Pressure Range ANSI 150 to 600

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, 45º valve body

Specifications

Materials of Construction

• Valve Body: Carbon Steel, ASTM A352 GR LCC
• 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
• Valve Piston: Standard: Stainless Steel

Features

  • Lower operating costs with no nitrogen gas consumption

  • 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

Specifications

Materials of Construction

• Seat Ring: DN50 to DN200 (2-in to 6-in) Stainless Steel; DN300 to DN400 (8-in to 16-in) Carbon Steel, Nickel Coated
• O-Rings: Standard: Viton; Optional: Neoprene, EPR, Viton, all Buna-N, Kalrez / Teflon AP (Aggressive Products)

Features

  • 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

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