The YP21X Micro Air Release Valve is a compact automatic venting device designed specifically for data center liquid cooling modules, server cold plates, and Cooling Distribution Units (CDU). During the circulation of the liquid cooling system, small amounts of accumulated air can create air locks, reducing heat exchange efficiency and causing pump cavitation. Featuring a lever-float mechanism, this valve senses fluid level changes in real-time, automatically discharging micro-bubbles under system operating pressure and closing tightly when liquid reaches the port, ensuring the cooling loop remains fully filled with liquid.

Product Image:YP21X Micro Air Release Valve for Liquid Cooling

1、High Sensitivity Venting: Specifically designed for the micro-bubbles generated in liquid cooling loops, using lever principles to amplify buoyancy for precise action even with minimal air buildup.

2、Venting Under Pressure: Unlike standard valves, it supports continuous air release while the system is at full operating pressure, effectively eliminating "air lock" phenomena.

3、Anti-Spurt & Leak-Proof: Precision-ground internal components and high-resilience rubber seals ensure only air is released without liquid spray, keeping the cabinet environment dry.

4、Ultra-Compact Structure: The extremely small footprint fits inside servers or compact cooling modules without interfering with other electronic components.

5、Stainless Steel Purity: The stainless steel body resists long-term corrosion from deionized water or glycol, ensuring no impurity precipitation and maintaining coolant purity.

6、Anti-Clogging Design: Features a specialized dust cap or anti-clogging passage to prevent environmental dust or coolant crystallization from affecting venting performance.

Structure Diagram:YP21X Micro Air Release Valve for Liquid Cooling

Material List

Performance Specification Sheet

Standard requirements for external dimensions

Product approved by PED97/23/EC (CE0036)

Casting approved by AD2000-W0

Inspection & Testing: API598, EN12266

Outline Diagram:YP21X Micro Air Release Valve for Liquid Cooling

Outline Dimension Table   （Unit:mm）

Due to the rapid R&D iteration speed of valve products from China Kaivex Valve Group Co., Ltd., the above technical parameters and specification documents, including product overview, features, parts materials, outline dimension charts, CAD drawings, and product instruction manuals, are for your reference only. For actual applications, please contact our valve sales engineers to obtain the support you need for free. Thank you!