40D Knife Gate Valve



The UCC Environmental 40D Knifegate Valve is designed specifically for on/off pipeline isolation service in pneumatic conveying applications of abrasive material such as dry fly ash. This rugged and easy-to-maintain valve is a proven industry standard with over 5,000 installations worldwide.


    • UCC’s spring-loaded packing gland design maintains seal pressure during operating and prevents leaks, minimizing maintenance and extending the life of the blade and packing.
    •  The 40D has three different configurations utilizing a replaceable dual seat, flow cone, or wear liner to increase the valve wear life and allow for economical rebuilds.


    •  Valve sizes: 4” – 16”
    •  Valve connection: ANSI Class 150
    • Operating pressure: 40psi
    •  Operating temperature: 400F
    •  Dual seat crossover, wear liner branch line, or flow cone branch line configurations
    •  Accessories
      • Air cylinder, handwheel, chainwheel, or motor operator
      • Solenoid
      • Limit switches
      • Purge air kit
      • Lockout kit
      • Guard
      • Pre-piped and wired junction box

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