Micro Shut-Off Valve
MH: Professional Micro Shut-Off Valve Supplier
XAC MH MACHINING CO., LTD. , established in 1955, is a leading backbone enterprise within China's aerospace industry. The company has successfully developed China's first aviation gyroscopic instrument, its first missile autopilot system, its first aviation attitude and navigation system, and its first aviation flight director system. OEM ultra-precision machining for Medical, Energy, Space, Defense, Semiconductor, Oil & Gas etc.
Why Choose Us
Advanced Equipment
We are equipped with hundreds of world-leading manufacture and testing equipment from Germany, Switzerland, the United States, and Japan, like six-axis, five-axis, and four-axis CNC machines, sets of Zeiss CMM, high-precision testing benches etc.
ODM/OEM Services
From refractory metal materials to precision functional components and radar system products, we accept ODM/OEM orders. We provide a one-stop service from design to processing to surface treatment.
Quality Certifications
MH is certified by international standards including AS9100, ISO14001, and ISO45001, and possesses a CNAS-accredited laboratory and a comprehensive quality control system.
Global Market
Our products are exported to countries and regions including Europe, the United States, Russia, and Japan. Our products enjoy an excellent reputation among our customers.
Types of Micro Shut-Off Valve
The Micro Shut-Off Valve Produced by Our Company Mainly Include the Following Types:
14mm Manual Fuel Shut-off Valve
Designed specifically for RP-3 aviation kerosene media scenarios, it adopts a normally open structure, combined with a precise 14mm diameter and manual operation mode, balancing lightweight and reliability.
12mm Oil Drain Valve
This is a 12mm drain valve designed for use with mixed media of aviation/equipment fuel and rust-preventive oil. It is suitable for safe draining and maintenance operations under low-pressure conditions.
5mm High Pressure Manual Air Shut-off Valve
This is a 5mm manual pneumatic shut-off valve designed specifically for high-pressure pneumatic systems, suitable for operating environments up to 15 MPa.
8mm Manual Ball Valve
This is an 8mm manual ball valve for gas systems, suitable for nitrogen or air applications, providing reliable opening and closing and safe control within a wide temperature range and at a pressure of 1.5MPa.
10mm Cryogenic Shut-off Valve
MH 10mm cryogenic shut-off valve is specifically designed for LNG and various other cryogenic liquid media, suitable for safety shut-off and system isolation in cryogenic storage and transportation, gas separation, testing, and related equipment.
14mm Air Vent Valve
The air vent valve is a compact pneumatic venting device designed to release trapped air from fluid systems and ensure stable pressure conditions in pipelines, hydraulic assemblies, and pneumatic circuits.
Key Parameters
|
Product Type |
Manual Shut-Off Valve |
|
Nominal Diameter (DN) |
14 mm |
|
Operating Mode |
Normally Open |
|
Working Pressure |
0.2 MPa |
|
Working Medium |
RP-3 Fuel |
|
Medium Temperature Range |
-47℃ ~ +70℃ |
|
Weight |
Approx. 245 g |
Micro Shut-Off Valve Materials
01
Stainless Steel:
Stainless steel are engineered for demanding applications that require durability and resistance to harsh conditions.
02
Brass:
Made from an alloy of copper and zinc, brass is known for its moderate strength and corrosion resistance, making it a reliable option for various applications.
03
Plastic:
Plastic materials are typically made of PVC. They are a popular choice for a wide range of projects thanks to their affordability and versatility.

Advantages of Micro Shut-Off Valve
Control: They provide precise control over fluid flow, enabling operators to start, stop, or regulate flow as needed.
Isolation: Micro shut-off valves allow for sections of a system to be isolated for maintenance or repair without disrupting the entire operation.
Safety: By controlling flow, micro shut-off valves help prevent leaks, spills, and other potentially hazardous situations.
Efficiency: Properly selected and maintained micro shut-off valves can improve system efficiency by reducing pressure losses and minimizing energy consumption.
Versatility: Available in a wide range of materials, sizes, and configurations, micro shut-off valves can be tailored to suit specific applications and operating conditions.
Effortless Operation: This valve features a handle-operated design, allowing users to easily turn the water flow on or off, or adjust the flow rate according to their specific needs.
Applications of Micro Shut-Off Valves
Water Supply and Treatment
In water supply systems, micro shut-off valves control the distribution of potable water and manage flow in treatment plants. They ensure efficient water management and prevent contamination.
Oil and Gas Industry
Micro shut-off valves are critical in the oil and gas sector for controlling the flow of crude oil, natural gas, and refined products. They are used in pipelines, refineries, and storage facilities to ensure safe and efficient operations.
Chemical Processing
In chemical plants, micro shut-off valves regulate the flow of various chemicals, ensuring safety and precise control in potentially hazardous environments. They are designed to withstand corrosive substances and extreme temperatures.
HVAC Systems
Heating, ventilation, and air conditioning (HVAC) systems use micro shut-off valves to control the flow of air and refrigerants. These valves help maintain optimal temperature and humidity levels in buildings.
Power Generation
In power plants, micro shut-off valves play a crucial role in controlling steam and cooling water flow, contributing to efficient and safe power generation.
Food and Beverage Industry
The food and beverage industry uses micro shut-off valves to manage the flow of ingredients and products during processing and packaging. Valves used in this sector must meet strict hygiene and safety standards.
Pharmaceuticals
In pharmaceutical manufacturing, micro shut-off valves control the flow of liquids and gases in production lines. They are designed to maintain sterility and prevent contamination.

Ensure that the valve you select is compatible with your existing piping system to avoid complications during installation.
Clean the pipeline thoroughly before installation to prevent dust, metal particles, or debris from damaging the valve seal.
Install the valve on a stable and vibration-free section of the pipeline to maintain reliable operation.
Do not overtighten the valve connections, as excessive force may deform the valve body or damage the threads.
Ensure sufficient space around the valve for future inspection, maintenance, and replacement work.
Customization Process
Communicate Needs
You can contact us via email at info@xacmfg.com to share your specific requirements, such as filtration grade, dimensions, or materials. This allows us to prepare an accurate quotation tailored to your needs.
Develop Solutions
Based on your requirements, we will create a customized solution and provide detailed design drawings along with a clear implementation plan.
Contract Confirmation
We will review the design plans and contract details together to ensure mutual understanding and agreement. This step guarantees clarity for both parties.
Manufacturing & Delivery
Once confirmed, we begin manufacturing and closely monitor progress to ensure timely production and delivery. This helps us maintain efficiency and meet deadlines.
Final Acceptance
We conduct a final acceptance inspection with you to confirm that the delivered products meet your quality standards and all technical specifications.
Ongoing Support
After delivery, we provide maintenance and technical support to ensure long-term reliability. This ensures your products consistently perform at their best.
Shipping and Delivery

Our Certifications
Our manufacturing and quality systems meet strict aerospace standards




FAQ
As one of the most professional shut-off valve manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to wholesale high quality shut-off valve made in China here from our factory.
12mm Oil Drain Valve, 8mm Fuel Drain Valve Switch, 0 4mm Miniature Charging Valve Shut Off Type
















