The IMPCO VFF30 fuel lock is a combination fuel lockoff and filter, has a hydrin diaphragm to resist oil, fuel, and solvents, and is suitable for use with liquid propane gas (LPG) or natural gas vapor (...

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The IMPCO VFF30 fuel lock is a combination fuel lockoff and filter, has a hydrin diaphragm to resist oil, fuel, and solvents, and is suitable for use with liquid propane gas (LPG) or natural gas vapor (NGV) forklift engines with up to 325 horse power (HP) at maximum working pressure of 312 pounds per square inch. The filter element is serviceable with a RK-VFF30 hydrin or RK-VFF30-2 silicone repair kit. A pressure of 0.5" water column (w.c.) is required to open the lockoff. Tools for assembly are sold separately.

Specifications
Fuel Type LPG Liquid/Vapor; Natural Gas Vapor
Inlet Pressure (maximum) 312 psi (21.51 Bar)
Flow Rate26.7 CFM (12.6 L/s)
Operating Temperature Range-40 to +250 degrees F (-40 to +121 degrees C)
Filtration40 micron
Vacuum Activation Minimum Opening0.50" w.c. (0.12kPa)
Fully Opened11.5" w.c. (2.86 kPa)
Minimum Operating Opening2.0" w.c. (0.50kPa)
Mounting PositionVertical
CertificationUL (AU1502)

IMPCO Technologies manufactures fuel systems, engines, power units, and components for industrial and automotive applications. The company, founded in 1958 and headquartered in Santa Ana, CA, meets International Organization for Standardization (ISO) standard 9001:2008.



  • Combination fuel lockoff and filter for use with liquid propane gas (LPG) or natural gas vapor (NGV) forklift engines
  • Diaphragm made of hydrin to resist oil, fuel, and solvents
  • Suitable for engines up to 325 HP at maximum working pressure of 312 PSI
  • Filter element is serviceable with RK-VFF30 hydrin or RK-VFF30-2 silicone repair kit
  • A pressure of 0.5" w.c. is required to open the lockoff
  • Combination fuel lockoff and filter for use with liquid propane gas (LPG) or natural gas vapor (NGV) forklift engines
  • Diaphragm made of hydrin to resist oil, fuel, and solvents
  • Suitable for engines up to 325 HP at maximum working pressure of 312 PSI
  • Filter element is serviceable with RK-VFF30 hydrin or RK-VFF30-2 silicone repair kit
  • A pressure of 0.5" w.c. is required to open the lockoff

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