• #2353

The Model VFF30 is a combination fuel lockoff and filter, engineered for use with LPG (liquid or vapor) or Natural Gas Vapor.  The VFF30 is suitable for engines up to 325 hp (242 kW) at a maximum working pressure of 312 psi (21.51 Bar). The extra large capacity filter element is fully serviceable

SPECIFICATIONS

Fuel Type ……………………………….. LPG Liquid/Vapor, Natural Gas Vapor
Inlet Pressure (maximum) …………. 312 psi (21.51 Bar)
Flow Rate ……………………………….. 26.7 CFM (12.6 L/s)
Operating Temperature Range…… -40°F to +250°F (-40°C to +121°C)
Filtration ………………………………….. 40 Micron
Vacuum Activation
Minimum Opening ………………. 0.50” w.c. (0.12kPa)
Fully Opened ……………………… 11.5” w.c. (2.86 kPa)
Minimum Operating Opening … 2.0” w.c.(0.50 kPa)
Mounting Position …………………….. Vertical (as shown above)

IMPCO VFF30 Lockoff Parts Breakdown

VFF-30 Rebuild Kit

IMPCO VFF-30 Rebuild Instructions

• CA300AM-50-4 Non-Feedback Model – #2243

The Model 300A mixer is a single-diaphragm air valve for applications. It offers a down-draft air inlet that can be used for remote air filtration or open-element type air filters. This unit is available for LPG Vapor and Natural Gas applications with air flow requirements up to 348 CFM (164 L/s) or 432 CFM (204 L/s) depending on the part number. The 300A has numerous adapters to allow the installer to fit the 300A into most under hood vehicle applications. The Model 300A is also available for feedback applications with the ‘FB’ designation. The 300A can also be equipped with a cam mechanism to allow the air valve to be raised to its full open position to minimize any restriction in the base vehicle air stream. Optional air cleaner assemblies are also available for engines which require higher CFM air flow.

SPECIFICATIONS

Fuel Type ………………………………… LPG Vapor, Natural Gas
Operating Temperature Range …… -40°F to +250°F (-40°C to +121°C)
Diaphragm Material …………………… Hydrin (Standard), Silicone (Optional)
HP/(kW) (1 & 20) ………………………. 217 hp (161.8 kW) @ 348 CFM (164 L/s) w/1.5” Hg manifold
HP/(kW) (50 & 70) …………………….. 270 hp (201.3 kW) @ 432 CFM (204 L/s) w/1.5” Hg manifold
Certification ……………………………… UL (AU2317), Inquire for specific ECE approval

IMPCO Model 300A Carburetor Parts Breakdown

• CT425M-2 Mixer – #2256
• FT425M-2 Feedback Mixer – #2292

The Model 425 carburetor is a single-diaphragm air valve carburetor/mixer. It offers a down draft air inlet that can be used for remote air filtration or open-element type air filters. This unit is available for LPG Vapor and Natural Gas for applications requiring up to 460 CFM (217.1 L/s). The Model 425 is also available for feedback applications with the ‘FB’ designation. These FB mixers are available in a tamper resistant configuration, indicated by the “-CT” in the part number.

SPECIFICATIONS

Fuel Type …………………………………………….. LPG Vapor, Natural Gas
Inlet Pressure ……………………………………….. 8.0” w.c. Natural Gas/LPG Vapor
Operating Temperature ………………………….. -40°F to +250°F (-40°C to +121°C)
Mounting Position ………………………………….. Vertical
Diaphragm Material ……………………………….. Hydrin (Standard), Silicone (Optional)
Hp/kW …………………………………………………. 287hp (214kW) @ 460 CFM (217.1 L/s) and 1.5”
Hg manifold depression
333hp (248kW) @ 533 CFM (252L/s) and 2.0” Hg
manifold depression

IMPCO Model CT425 Carburetor Parts Breakdown

• CA225M-2 Mixer – #2241
• FB225M-2 Mixer – #2289 (feedback applications)

The Model 225 carburetor is a single-diaphragm air valve carburetor/mixer. It offers a down-draft air inlet that can be used for remote air filtration or open-element type air filters. This unit is available for LPG vapor or Natural Gas applications with air flow requirements up to 380 CFM (179.3 L/s). The Model 225 is also available for feedback applications with the ‘FB’ designation. Note: All DG model mixers reduce air flow by 30%. Two separate air valve vacuum supplies are available with this mixer. Additional low speed mixture control can be obtained to lean air/fuel mixtures with optional ring spacers/shims.

SPECIFICATIONS

Fuel Type …………………………………… LPG Vapor or Natural Gas
Inlet Pressure ……………………………… -1.5” w.c. (-0.37 kPa)
Operating Temperature Range ……… -40°F to +250°F (-40°C to +121°C)
Mounting Position ………………………… Vertical
Diaphragm Material ……………………… Hydrin (Standard), Silicone (Optional)
HP/kW ……………………………………….. 205 hp (153kW) @ 329 CFM (155 L/s) and 1.5” in Hg
manifold depression
237 hp (176.7 kW) @ 380 CFM (179.3 L/s) and 2.0” in Hg
manifold depression

IMPCO Model CA225 Carburetor Parts Breakdown

• CA125M-2 Mixer – #2240

The Model 125 carburetor is a single-diaphragm air valve carburetor/mixer for applications requiring air flow up to 235 CFM (111 L/s). It offers a down draft air inlet that can be used for remote air filtration or open element type air filters. This unit is available for LPG Vapor and Natural Gas Vapor applications. The Model 125 is also available for feedback applications with the “FB” designation. Two separate air valve vacuum supplies are available with this mixer. Additional low speed mixture control can be obtained to lean air/fuel mixtures with optional shims.

SPECIFICATIONS

Fuel Type …………………………………… LPG Vapor or Natural Gas
Inlet Pressure ……………………………… -1.5” w.c. (-0.37 kPa)
Operating Temperature Range ……… -40°F to +250°F (-40°C to +121°C)
Mounting Position ………………………… Vertical
Diaphragm ………………………………….. Hydrin or Silicone
HP/kW ……………………………………….. 126 HP (94kW) @ 202 CFM (95 L/s) and 1.5” in Hg manifold
depression
146 HP (108.8kW) @ 235 CFM (111 L/s) and 2.0” in Hg
manifold depression

IMPCO Model CA125 Caburetor Parts Breakdown

• CA100-M3 #2238

Throttle Bodies Are Also Available, We Will Need The T2- Number Found On Your Throttle Body

The Model 100 Series is a single diaphragm air-gas valve carburetor mixer. It offers a 90° air inlet to provide low overhead clearance, and is available with several air horn and throttle body options. This unit is available for propane, natural gas and digester gas applications. The Model 100 is also available for Feedback applications with the ‘FB’ designation. The 100 mixer provides a convenient 1/8″ NPT balance port and two separate air valve vacuum ports. Additional low speed idle mixture control can be obtained to lean air fuel mixtures through the use of optional shims.

SPECIFICATIONS

Fuel Type …………………………………… LPG Vapor or Natural Gas
Inlet Pressure ……………………………… -1.5” w.c. (-0.37 kPa)
Operating Temperature Range ……… -40°F to +250°F (-40°C to +121°C)
Mounting Position ………………………… Vertical
Diaphragm Material ……………………… Hydrin or Silicone
HP/kW Rating ……………………………… 106 HP (79 kW) @ 170 CFM (80 L/s) and 1.5” in Hg manifold
depression
123 HP (91.7 kW) @ 197 CFM (93 L/s) and 2.0” in Hg
manifold depression

IMPCO Model CA100 Caburetor Parts Breakdown

Different Models

CA100M-1 Mixer: 1-1/2 inch Air Horn – no stock #
CA100M-2 Mixer: 1-7/8 inch Air Horn – no stock #
CA100M-3 Mixer: 2-1/16 inch Air Horn – #2238
CA100M-4 Mixer:  2-5/16 inch Air Horn – #2239

FT100M-30828-52-002 Spectrum Mixer, non-repairable – #3393

• 2252

IMPCO’s CA55 model carburetors are offered in four design variations, providing proven, effective solutions for optimum metering and delivery of either LPG vapor or Natural Gas. The standard model can be mounted in either an updraft, downdraft, or side draft orientation, supplying either LPG or Natural Gas to engines up to 73 hp (1 to 54kW), with a flow rate of 118 CFM (55.7 L/s). Various SAE flanges and air horn sizes are available.

SPECIFICATIONS

Fuel Type …………………………………… LPG Vapor or Natural Gas
Inlet Pressure ……………………………… -1.5” w.c. (-0.37 kPa)
Operating Temperature Range ……… -40°F to +250°F (-40°C to +121°C)
Mounting Position ………………………… Vertical
Diaphragm Material ……………………… N/A
HP/kW Rating ……………………………… Up to 73 hp (54 kW) @ 118 CFM (55.7 L/s) and 2.0” in Hg manifold depression

IMPCO CA55-500L Carburetor Parts Breakdown