Orificing Line Blank Valves

To operate an efficient combustion system, one of the first things that must be achieved is balanced air flow through the coal delivery system. Maintaining a minimum air flow through each coal pipe will ensure reliable coal delivery and assist in balancing the coal pipe fuel distribution.

Line blank with gate position indicator and hinged access cover

Line blank with gate position
indicator and hinged access cover

Line blank assembly system

Line blank assembly system

Gate ring with set screws

Gate ring with set screws

One piece nitride bonded silicone carbide orifice

One piece nitride bonded silicone carbide orifice, Sizing per customer specification

Orificing Line Blanks

Line Blank Orifice System: One Gate – 3 Choices

  1. Full Flow Insert: Matches O.D. and I.D. of the existing coal pipe
  2. Orifice: Nitride bonded silicon carbide orifice
  3. Line Blank: For coal line isolation

All three choices are held in place by the set screws on the gate ring

Orifice inspection and replacement is quick and easy with our system

Gate Choices

Gate Choices

Full Flow

Full Flow

Nitride Bonded Silicone Carbide Orifice

Nitride Bonded Silicone Carbide Orifice

Line Blank Coal Line Isolation

Line Blank Coal Line Isolation