NR-3VMA-T

NR-VMA-T Pump-Regulator Overview

The NR-VMA-T is an aircraft fuel pump-regulator designed for fuel supply and automatic control of turboshaft engines. The unit performs fuel metering, regulation, and distribution functions required for stable engine operation across all operating modes. It is configured for operation with high-performance engine variants and extended environmental conditions.

NR-VMA-T Fuel Control Function

The pump-regulator provides accurate fuel dosing during start-up, acceleration, steady operation, and shutdown. It regulates fuel flow according to engine operating parameters and distributes fuel to injector circuits. The unit also supports compressor guide vane control and ensures coordinated operation of engine systems.

NR-VMA-T Aircraft Application

The unit is used on helicopters such as Ka-50, Ka-52, Mi-28 and on aircraft including An-140 and An-38 equipped with TV3-117VMA-T engines. It operates within engine fuel and automatic control systems and supports reliable performance under varying operating conditions.

NR-VMA-T System Integration

The pump-regulator is mechanically driven and interacts with onboard control systems, adjusting fuel supply based on operational inputs. It belongs to the NR-3VM / NR-VMA family of units adapted for different engine configurations. The product is also known under alternative designations NR-VMA-T, НР-ВМА-Т, NRVMAT.

Product Type: Aircraft fuel pump-regulator
Function: Fuel supply, metering, regulation and distribution
Application / Where Used: Aircraft engine fuel and control systems
System / Installation Area: Engine fuel supply system
Compatible Aircraft / Equipment: TV3-117VMA-T engines
Working Medium: Aviation fuel (T-1, TS-1, RT, T-1, T5-1, VT)
Control Type: Mechanical with automatic regulation
Control Parameters: Gas generator rotor speed and free turbine speed
Functions: Fuel distribution, engine shutdown, compressor guide vane control
Pressure Synchronization: Supported for dual-engine operation
Design Features: Adaptation for high-altitude and extended operating conditions
Technical Documentation: NR-VMA-T Technical Documentation

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.