Coal Valves

  • Performance
  • Reliability
  • Experience


MERRICK Coal valves are utilized as material shutoff gates located at the bunker (silo) outlet. These valves provide “off-on” control of the material of varying sizes. They are designed to cut through a standing column of material.

Features

Pressurized Construction

  • 3 psi (0.2 Bars) integrity
  • Interior access through poke holes
  • All joints welded, inside and out
  • Gate removable through end cover without removing valve
  • 16” – 48” square or round inlet/outlet configurations
  • 14” X 30” or 24” X 72” rectangular inlet/outlet to match feeder inlet
  • Flange pattern to meet customer specifications

Self-Cleaning Design

  • Virtually no material accumulation
  • Jam-proof operation

“U” shaped Gates

  • Eliminates component contact with material stream
  • All material contact surfaces are stainless steel
  • Positive shutoff
  • Custom sizes to meet customer specifications
  • Carbon steel construction with stainless steel liner

Gate Support Rollers

  • Stainless steel roller shells
  • Externally greased rollers

Double Rack and Pinions

  • Eliminates gate binding or skewing
  • Stainless steel pinions

Access Ports

  • Two access ports located one per side
  • Covers are flush with inside

OPTIONS

  • Hand wheel, chain wheel, pneumatic or electric operator
  • Acoustic flow monitor mounted in extended inlet
  • Limit switches for gate position indication
  • 50 psi (3.45 Bars) design
  • Visual gate position indicator

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