Impco VFF-30 Lockoff

The IMPCO VFF30 is a combination fuel lock-off and filter unit designed for propane (liquid or vapor) and natural gas vapor systems. It automatically shuts off fuel flow when vacuum is lost while filtering contaminants to protect downstream components. With a rugged design and large filter element, it is ideal for heavy-duty engines up to 325 horsepower.

Key Features

• Dual function: lock-off valve and fuel filter in one unit

• Vacuum-activated: opens with engine vacuum, closes when vacuum is lost

• Built-in 40-micron replaceable filter element for protection against dirt and debris

• Works with both liquid and vapor propane, and natural gas vapor

• Handles up to 312 PSI inlet pressure

• Suitable for engines up to 325 HP (≈ 242 kW)

• Large flow capacity for high-demand applications

• Wide operating temperature range: −40°F to +250°F (−40°C to +121°C)

• Heavy-duty aluminum construction for durability

Specifications

Applications

• Forklift engines and industrial vehicles using propane or natural gas

• Stationary or mobile LPG/NGV systems where fuel cleanliness and automatic shut-off are essential

• Safety installations where loss of vacuum should stop fuel flow

• High-demand propane or NGV engines requiring dependable filtering and shut-off

Why Choose IMPCO VFF30

The VFF30 simplifies your fuel system by combining a lock-off and filter in one durable unit. It provides reliable shut-off protection, filters impurities, and supports engines up to 325 HP. Built to withstand harsh operating conditions, it ensures both safety and performance in demanding propane and natural gas applications.