Check Valves

  • COMBU Oil Check Valves are engineered to meet the demanding requirements of today's increasingly complex and diverse variety of oil delivery systems.  The modern, state of the art design allows the installer the flexibility to mount this Check Valve in any position: vertical, horizontal or oblique.  And while this Check Valve is offered primarily for oil related applications, it is also suitable for a wide variety of other liquid and nonflammable gas uses.
  • Effective full bore body and streamlined poppet design provides uncharacteristically low head loss with high flow capacities.
  • Minimal pressure required to open the valve -- less than 1/3 PSI.
  • Positive, leak proof seal at all operating pressures.
  • High quality construction provides quiet operation, even at high flow rates and is resistant to wear, ensuring a long service life.
  • Viton seat.
  • U.L. recognized for Kerosene, No. 2 Fuel Oil, No. 4, 5 & 6 Heavy Oils and Waste Oils.
  • Cut-away drawing available in .PDF format.

Technical Data

MODEL
NUMBER
PIPE
SIZE
DIAMETER HEIGHT CV
H141.SO2 1/4" NPT 1-1/8" 1-7/8" 8.0
H141.SO3 3/8" NPT 1-1/8" 1-7/8" 8.0
H141.SO4 1/2" NPT 1-3/8" 2-1/8" 10.2
H141.SO5 3/4" NPT 1-5/8" 2-1/4" 13.2
Opening Pressure: 0.3 psig
Working Pressure: 0.75 to 300 psig
Maximum Pressure: 425 psig
Working Temperature: -20 to 140 degrees F
Maximum Temperature: 230 degrees F

 

  Check Valves