Customer Cases

1. Product Concept
The MIL-PRF-7-1422 Coalescing Filter Element is a precision-engineered, aerospace-grade filtration component designed for extreme-duty fluid management in mission-critical systems. Operating on the principle of mechanical coalescence under severe environmental and operational conditions, its primary function is to ensure absolute fluid purity by forcibly separating sub-micron liquid aerosols and fine particulate contaminants from high-pressure gases, cryogenic fluids, and reactive propellants. This product transcends conventional industrial filtration; it is a flight-qualified safety device whose design, materials, and performance are exhaustively validated to maintain integrity and functionality in the presence of intense vibration, extreme thermal cycling, rapid pressure transients, and corrosive media. Compliance with this military performance specification certifies its reliability for applications where component failure is not an option.

2. Key Advantages & Features

• Extreme Environment Certification: Rigorously tested and qualified to perform reliably under extreme conditions including cryogenic temperatures (below -300°F/-184°C), high-altitude/low-pressure exposure, intense launch vibration (per MIL-STD-1540/810), and thermal shock.

• Ultra-High Purity & Cleanliness: Constructed from materials that minimize outgassing and particle generation (e.g., electropolished stainless steel, specialized alloys), meeting stringent cleanliness protocols (e.g., IEST, NASA) for oxygen service and sensitive aerospace applications.

• High-Pressure & Leak-Tight Integrity: Engineered for operating pressures exceeding 1,000 psig (69 bar) with welded or brazed metal-to-metal joints in critical paths, ensuring a hermetic seal and eliminating the risk of elastomeric seal degradation in reactive or cryogenic service.

• Validated Fluid Compatibility: Exhaustively tested for compatibility with demanding media such as liquid oxygen (LOX), liquid hydrogen (LH2), hydrazine-based fuels, high-pressure helium/nitrogen, and hydraulic fluids, preventing material incompatibility failures.

• Predictable Performance under Dynamic Loads: Designed to maintain specified separation efficiency and flow characteristics despite the severe sinusoidal and random vibration, as well as acoustic and shock loads, experienced during launch and high-speed flight.

3. Primary Application Fields
This component is deployed in systems where fluid purity is inextricably linked to mission success, platform safety, and system longevity in the most demanding operational regimes.

• Launch Vehicles & Strategic Missiles: Critical for liquid propellant (LOX/LH2, hypergolics) feed systems, pneumatic control systems, and inert gas purging circuits to protect turbopumps, injectors, and valves.

• Spacecraft & Satellite Platforms: Integrated into propulsion systems (attitude/orbit control thrusters), fuel cell reactant supply loops, and thermal management systems for long-duration space missions.

• High-Altitude & Hypersonic Aircraft: Used in environmental control systems (ECS), onboard inert gas generation systems (OBIGGS), and fuel systems operating in near-vacuum and severe thermal environments.

• Strategic Ground Support Equipment (GSE): Essential for cryogenic fluid transfer and storage systems, pneumatic/hydraulic test stands, and launch pad conditioning equipment.

• Advanced Research & Testing Facilities: Employed in hypersonic wind tunnels, combustion research chambers, and component test rigs requiring ultra-clean, high-pressure, or cryogenic fluid delivery.

4. Common Models：

I-614C5TB

l-622C5TB

l-628C5TB

l-633C5TB

l-638C5TB

l-644C5TB

l-656C5TB

SO-424V5

SO-430V

SO-436V

SO-424V

SO-624VA

SO-630VA

SD-6333A

SO-640V

SO-644V

SO-648V

SD66W5S

SO-644VA5

SO-644V5

SO-648V5

SO-614VA5

SO-623VA5

SO624V5

SO-623VA5

SO624VA5

SO-630PV5

SO636PV5

SO640PV5

SO-644PV5

SO-633VA5

SO-640VA5

SO-644PV5

SO-644V5

SO-640V5

SO-644VA5

SO-644PV5

SO-646V5