Fuel Pump
463B
Price on request
Fuel Pump
Description
463B in the aircraft fuel supply system
The 463B is an aircraft electrically driven centrifugal fuel pump designed to create positive pressure at the inlet of the main engine fuel pump. In the fuel system, it works as a booster unit and helps maintain stable fuel delivery when inlet pressure is reduced or engine demand changes. The pump is used in helicopter and aircraft fuel systems, including Mi-8, Mi-17, Mi-171 and Mi-172 family aircraft, where reliable fuel feed is required for normal engine operation.
Fuel boosting function of the 463B pump
The main task of the 463B is to increase pressure in the fuel supply line before the main engine fuel pump. This prevents fuel starvation and reduces the risk of cavitation at the inlet of the downstream fuel equipment. The pump is especially important during high-altitude operation, when pressure conditions in the fuel system become more demanding. By creating a stable pressure rise, the 463B supports reliable engine fuel supply across different flight modes.
463B as an external centrifugal fuel pump
The 463B is an external centrifugal pump, not an in-tank unit. Its pump section uses a rotating impeller to accelerate fuel and create the required pressure rise in the line. This type of pump is compact and suitable for continuous operation in aircraft fuel systems. Since it works outside the tank, installation quality, sealing, pipe connections and vibration condition are important. Any leakage, restriction or contamination in the line can affect pump performance and fuel-system reliability.
Electric motor drive of the 463B pump
The 463B is driven by an MB-280B electric motor. The pump operates from a 27 V DC aircraft power supply with a tolerance of ±10%. Current consumption is not more than 17 A according to the supplied data. This makes electrical condition an important part of inspection. During service, the motor, connector, wiring, insulation condition, current draw and stable rotation should be checked together with hydraulic performance.
463B on Mi-8 / Mi-17 family helicopters
The 463B is applicable to Mi-8, Mi-17, Mi-171 and Mi-172 fuel systems, depending on aircraft configuration. In these helicopters, the pump supports fuel delivery to the main engine fuel system and helps improve altitude capability. Its role is to maintain positive pressure at the inlet of the main pump, so the fuel system can continue operating correctly when altitude, fuel temperature or demand conditions change. Exact installation should be verified by aircraft modification and fuel-system documentation.
Fuel compatibility and operating temperature of 463B
The 463B works with several aviation fuel grades, including T-1, TS-1, RT, T-5-1 and VT according to the supplied data. The fuel temperature range is from −55 to +50 °C, while ambient temperature range is from −60 to +50 °C. These limits are important for operation in cold climates and high-altitude conditions. Fuel cleanliness and correct filtration are also essential, because contamination can damage the centrifugal pump section and reduce pressure output.
Performance and altitude capability of 463B
The pump provides a flow rate of 4000 L/h and a pressure rise of not less than 0.82 kgf/cm². It is designed to support fuel-system operation at launch altitudes up to 17,000 m according to the supplied data. These characteristics show that the pump is intended not just for fuel transfer, but for boosting and stabilizing the inlet conditions of the main engine fuel pump. During acceptance, flow rate, pressure rise and current consumption should be checked together.
Supply and documentation for 463B
For supply or replacement, the pump should be requested by its full designation: 463B / 463Б. The normal scope of supply is the pump assembly. Since this is an aircraft fuel-system component, passport and technical documentation are important for acceptance. Before installation, the pump should be checked for flow, pressure rise, current consumption, motor operation, leakage, port cleanliness, housing condition and compatibility with the aircraft fuel-system layout.
Details
Product Type: Aircraft electrically driven centrifugal fuel pump
Designation: 463B
Alternative Designations: 463Б; 463B
Function: Fuel boosting and stabilization of fuel supply to the main engine fuel pump
Application / Where Used: Aircraft fuel systems
System / Installation Area: Fuel supply system, external installation
Compatible Aircraft / Equipment: Mi-8, Mi-17, Mi-171, Mi-172 and applicable aircraft depending on configuration
Pump Design: External centrifugal pump
Drive Type: Electric motor drive
Electric Motor: MB-280B
Power Supply Type: Direct current
Operating Voltage: 27 V ±10%
Current Consumption: Not more than 17 A
Pump Flow Rate: 4000 L/h
Pressure Rise: Not less than 0.82 kgf/cm²
Launch Altitude Capability: Up to 17,000 m
Operating Mode: Continuous
Working Medium: Aviation fuels T-1, TS-1, RT, T-5-1, VT
Working Fluid Temperature Range: −55 to +50 °C
Ambient Temperature Range: −60 to +50 °C
Dimensions: 300 × 112 × 148 mm
Weight: Not more than 5.25 kg
Scope of Supply: Pump assembly
Technical Documentation: Manufacturer passport and technical documentation
Inspection / Testing: Flow rate check, pressure rise check, current consumption check, electric motor operation, leakage check, port cleanliness and housing inspection
Payment & delivery
All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.
In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.
Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.
Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.
Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.
Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.
- Description
- Details
- Payment & delivery
463B in the aircraft fuel supply system
The 463B is an aircraft electrically driven centrifugal fuel pump designed to create positive pressure at the inlet of the main engine fuel pump. In the fuel system, it works as a booster unit and helps maintain stable fuel delivery when inlet pressure is reduced or engine demand changes. The pump is used in helicopter and aircraft fuel systems, including Mi-8, Mi-17, Mi-171 and Mi-172 family aircraft, where reliable fuel feed is required for normal engine operation.
Fuel boosting function of the 463B pump
The main task of the 463B is to increase pressure in the fuel supply line before the main engine fuel pump. This prevents fuel starvation and reduces the risk of cavitation at the inlet of the downstream fuel equipment. The pump is especially important during high-altitude operation, when pressure conditions in the fuel system become more demanding. By creating a stable pressure rise, the 463B supports reliable engine fuel supply across different flight modes.
463B as an external centrifugal fuel pump
The 463B is an external centrifugal pump, not an in-tank unit. Its pump section uses a rotating impeller to accelerate fuel and create the required pressure rise in the line. This type of pump is compact and suitable for continuous operation in aircraft fuel systems. Since it works outside the tank, installation quality, sealing, pipe connections and vibration condition are important. Any leakage, restriction or contamination in the line can affect pump performance and fuel-system reliability.
Electric motor drive of the 463B pump
The 463B is driven by an MB-280B electric motor. The pump operates from a 27 V DC aircraft power supply with a tolerance of ±10%. Current consumption is not more than 17 A according to the supplied data. This makes electrical condition an important part of inspection. During service, the motor, connector, wiring, insulation condition, current draw and stable rotation should be checked together with hydraulic performance.
463B on Mi-8 / Mi-17 family helicopters
The 463B is applicable to Mi-8, Mi-17, Mi-171 and Mi-172 fuel systems, depending on aircraft configuration. In these helicopters, the pump supports fuel delivery to the main engine fuel system and helps improve altitude capability. Its role is to maintain positive pressure at the inlet of the main pump, so the fuel system can continue operating correctly when altitude, fuel temperature or demand conditions change. Exact installation should be verified by aircraft modification and fuel-system documentation.
Fuel compatibility and operating temperature of 463B
The 463B works with several aviation fuel grades, including T-1, TS-1, RT, T-5-1 and VT according to the supplied data. The fuel temperature range is from −55 to +50 °C, while ambient temperature range is from −60 to +50 °C. These limits are important for operation in cold climates and high-altitude conditions. Fuel cleanliness and correct filtration are also essential, because contamination can damage the centrifugal pump section and reduce pressure output.
Performance and altitude capability of 463B
The pump provides a flow rate of 4000 L/h and a pressure rise of not less than 0.82 kgf/cm². It is designed to support fuel-system operation at launch altitudes up to 17,000 m according to the supplied data. These characteristics show that the pump is intended not just for fuel transfer, but for boosting and stabilizing the inlet conditions of the main engine fuel pump. During acceptance, flow rate, pressure rise and current consumption should be checked together.
Supply and documentation for 463B
For supply or replacement, the pump should be requested by its full designation: 463B / 463Б. The normal scope of supply is the pump assembly. Since this is an aircraft fuel-system component, passport and technical documentation are important for acceptance. Before installation, the pump should be checked for flow, pressure rise, current consumption, motor operation, leakage, port cleanliness, housing condition and compatibility with the aircraft fuel-system layout.
Product Type: Aircraft electrically driven centrifugal fuel pump
Designation: 463B
Alternative Designations: 463Б; 463B
Function: Fuel boosting and stabilization of fuel supply to the main engine fuel pump
Application / Where Used: Aircraft fuel systems
System / Installation Area: Fuel supply system, external installation
Compatible Aircraft / Equipment: Mi-8, Mi-17, Mi-171, Mi-172 and applicable aircraft depending on configuration
Pump Design: External centrifugal pump
Drive Type: Electric motor drive
Electric Motor: MB-280B
Power Supply Type: Direct current
Operating Voltage: 27 V ±10%
Current Consumption: Not more than 17 A
Pump Flow Rate: 4000 L/h
Pressure Rise: Not less than 0.82 kgf/cm²
Launch Altitude Capability: Up to 17,000 m
Operating Mode: Continuous
Working Medium: Aviation fuels T-1, TS-1, RT, T-5-1, VT
Working Fluid Temperature Range: −55 to +50 °C
Ambient Temperature Range: −60 to +50 °C
Dimensions: 300 × 112 × 148 mm
Weight: Not more than 5.25 kg
Scope of Supply: Pump assembly
Technical Documentation: Manufacturer passport and technical documentation
Inspection / Testing: Flow rate check, pressure rise check, current consumption check, electric motor operation, leakage check, port cleanliness and housing inspection
All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.
In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.
Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.
Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.
Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.
Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.