600400M

Fluid draining function of the 600400M valve

The 600400M provides controlled release of working fluid from the selected system section. It may be used for draining residual fuel or oil from tanks, pipelines, agregates, and service points during scheduled maintenance or troubleshooting. The valve helps maintenance personnel perform draining operations in a predictable manner and reduces the risk of uncontrolled leakage. Correct operation is important for aircraft service safety, especially when working with flammable aviation fuels, lubricating oils, and hydraulic-type service fluids used in onboard systems.

600400M in fuel and oil systems of Mi-8 helicopters

The 600400M is applied in helicopter fuel and oil systems, including systems installed on Mi-8 and Mi-17 family aircraft. In these applications, the valve may be installed on tanks, pipelines, or individual units depending on the aircraft configuration and the specific maintenance point. The valve supports servicing of the fuel and lubrication system by allowing controlled removal of fluid before inspection, replacement, repair, or preservation work. The exact installation location should always be checked against the aircraft parts catalog and maintenance documentation.

Working media compatibility of the 600400M valve

The 600400M is intended for use with several aviation working fluids, including aviation fuels, oils, gasoline, and approved service media listed for the system. Compatibility with fuels such as T-1, TS-1, T-2, and T-6 makes the valve suitable for aircraft fuel system drainage tasks. Compatibility with oils such as MK-8P, AMG-10, and MVP allows use in oil-related circuits and service points where these fluids are present. Before installation, the working medium should be confirmed according to the aircraft system documentation and the valve technical data.

Installation and maintenance role of 600400M

In service, the 600400M must provide tight closure during normal aircraft operation and controlled opening during draining. Since the valve may be exposed to pressure, temperature variation, vibration, fuel vapors, oil contamination, and repeated maintenance handling, its sealing condition is important. Before installation or reuse, the valve should be checked for mechanical damage, thread condition, cleanliness, corrosion, smooth operation, and signs of leakage. Even a small drain valve can affect system serviceability if it does not seal correctly or if its flow passage is contaminated.

Identification and supply of 600400M / 600400M

The product is identified by the designation 600400M. In Russian-language documentation and supply requests, the same item may be written as 600400M with a Cyrillic letter. Both designations refer to the same aircraft drain valve type, but the exact application should be verified by documentation. For procurement, the request should specify the designation, required condition, documentation, and intended aircraft system. The valve may be supplied with manufacturer technical documentation, passport, label, or other quality documents depending on stock condition and supply requirements.