Product Overview

This is a 0.4mm miniature charging valve with shut-off function, designed for precision pneumatic and hydraulic systems requiring lightweight construction and wide temperature capability.

Tailor-made for micro-flow scenarios, this device integrates inflation control and shut-off sealing functions. Its 0.4mm micro-diameter precisely adapts to low-flow requirements, stably compatible with both nitrogen and No. 15 aviation hydraulic oil, and suitable for a wide temperature range of -55℃ to +135℃ with stable pressure resistance up to 100kPa. Weighing only 15g, its ultra-lightweight design makes it widely applicable in high-precision pneumatic and hydraulic systems, enabling precise media flow, shut-off, and inflation control to ensure efficient and safe system operation.

Key Parameters

Valve Type	Charging valve with shut-off function
Nominal Diameter (DN)	0.4 mm
Rated Working Pressure	100 kPa
Working Medium	Nitrogen / Aviation Hydraulic Oil No.15
Operating Temperature	−55°C to +135°C
Weight	Approx. 15 g

Typical Applications

Aerospace hydraulic system charging

Nitrogen charging and pressure compensation circuits

Precision sealed chambers

Micro hydraulic and pneumatic systems

High-reliability equipment requiring lightweight components

Customers Worldwide

MH has 70 years aviation valve design and manufacture experience for Chinese customers in aviation and aerospace, we also have cooperated some world leading customers for more than 20 years:

Testing Equipment

MH is equipped with comprehensive measurement and testing equipment, capable of meeting the measurement needs of complex parts and testing of various fluid accessories, providing customers with all-round quality testing services.