Oxygen Ball Valve
공칭 직경：1/2”-56”(DN15-DN1400）
공칭 압력：클래스150-클래스2500(1.0MPa-32MPa)
최대 작동 온도:425℃
쉘 소재：WCB, WCC, F304, F316, F316L, 모넬 K500, 인코넬 718CF8, CF3, CF3M,N06625A105CW6MC, CY40, M35-1,N10276，CF8M
설계 기준: API 6D, ISO 17292, ASME B16.34, GB/T 12237, EN 1984, DIN 3202, JIS B2071
연결플랜지 또는 용접
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Oxygen Ball Valve
제품 정의 및 안전 임무:
The Oxygen Ball Valve is a core shut-off device ensuring the intrinsic safety of oxygen systems, specifically designed to eliminate the risks of combustion, explosion, contamination, and static electricity in highly reactive media conditions. JH provides a zero-risk solution throughout the entire lifecycle of air separation, delivery, and oxygen consumption terminals by integrating absolutely clean processes, intrinsically antistatic properties, and fire-resistant safety structures.
JH Oxygen Check Technology Gene
- Absolute cleanliness and safety → Oil-free degreasing throughout the entire flow path, residual grease ≤0.1mg/m² (compliant with JB/T 12955 / ISO 16010)
- Fire protection and anti-static properties → Fire-resistant structural design, valve stem electrostatic conduction resistance ≤10Ω (compliant with BS 6364 / ISO 22513)
- Zero leakage and high sealing performance → Bidirectional sealing, low-pressure leakage rating up to Class VI (ANSI/FCI 70-2), fire-resistant seal compliant with API 607/ISO 10497
- Low torque and long life → Opening/closing torque ≤30 Nm (ISO 5211), design life ≥100,000 cycles
- 제품 기술 분석
- High Temperature & Pressure
- Cryogenic Liquid Oxygen
Oxygen Ball Valve Product Technical Analysis: The safety system of the JH oxygen ball valve is constructed through systematic engineering. Risk elimination at the source: All parts undergo multiple degreasing and clean assembly processes to ensure no hydrocarbon residue remains in the flow path. Multiple anti-ignition designs: A built-in anti-static system forms a permanent low-resistance path (≤10Ω) for real-time charge discharge; the sealing pair uses dissimilar materials and precise control to suppress sparks and overheating. Structural safety redundancy: Integrated fireproof design ensures the metal seal can still operate even after soft seal failure; the valve body is FEA-optimized and can be equipped with an optional safety relief device. For cryogenic conditions, materials and clearances undergo low-temperature shrinkage compensation calculations and are verified through liquid nitrogen testing to ensure reliability across the entire temperature range from room temperature to -196℃.
For drying and high-pressure oxygen conditions that may involve adiabatic compression, a metal hard seal is used to prevent material thermal aging and particle risks at the air separation unit outlet and the reaction front end.
Core Design：
▌Performance parameters → Temperature resistance 425℃, hardness difference ≥15HRC, bidirectional sealing
▌Safe positioning → Rugged solutions for harsh working conditions
▌Core scenarios → Air separation compressor outlet, high-pressure oxygen buffer tank, chemical oxygen reaction pipeline
▌Key technologies → Anti-seize hard seal, anti-particle generation design, dual-blocking venting
Designed specifically for liquid oxygen at -183℃, ensuring material toughness and sealing reliability at ultra-low temperatures, it is the cornerstone of liquefied gas safety management and is suitable for liquid oxygen storage, transportation and vaporization systems.
Core Design：
▌Safety Positioning → Dedicated Solutions for Ultra-Low Temperature Environments
▌Core scenarios → Liquid oxygen storage tank inlet/outlet, cryogenic pump outlet, vaporizer pre-pipeline
▌Key technologies → Cryogenic material treatment, long-neck valve cover anti-cold bridge, low-temperature adaptive sealing
▌Performance parameters → Passed -196℃ cryogenic test, leakage level Class VI
핵심 설계 및 장점
- Intrinsic safety double insurance: integrated full-process oil-free degreasing and dynamic anti-static → oil residue ≤0.1 mg/m² & resistance ≤10 Ω | Simultaneously eliminate fuel and ignition source, overcoming the risk of combustion and explosion.
- Fireproof sealing with dual redundancy: Adopting a “soft seal + metal secondary seal” structure → Certified by API 607/ISO 10497 | It can still effectively seal under fire conditions, preventing the accident from escalating.
- Reliable sealing across the entire temperature range: Covering a complete solution from cryogenic to high-temperature environments → Applicable temperature range -196℃ to 425℃ | Meets the needs of the entire process from liquid oxygen storage to high-temperature processes, eliminating seal failure.
- Lifetime maintenance-free operation: Based on self-lubricating bearings and wear-resistant seals → Torque ≤25 Nm | Achieve ≥50,000 maintenance-free cycles, reducing life cycle costs.
- Breakthrough in high-pressure and harsh operating conditions: Metal hard seal series anti-seize pairing → Pressure rating Class 600 | Meets dry high-pressure oxygen conditions, breaking through application barriers.
- Intelligent Safety Enhancement: Optional valve position sensor and data interface → Supports remote monitoring and early warning | Enables predictive management upgrades and improves the level of intelligent safety.
기타 제품
FAQ-Oxygen Ball Valve
An Oxygen Ball Valve is a safety-engineered ball valve designed specifically for oxygen service (including LOX). Its key distinction lies in the extreme emphasis on safety and cleanliness. Using a standard ball valve for oxygen risks severe combustion due to grease residues, incompatible non-metallic materials, operational friction, or static accumulation in high-pressure pure oxygen. Oxygen-specific ball valves eliminate these risks through compatible materials, deep degreasing, fire-safe design, anti-static construction, and controlled flow velocity.
When compliant with oxygen safety codes, oxygen ball valves offer significant advantages as isolation valves:
Easy Operation: 90-degree rotation for full open/close with clear visual indication.
Very Low Flow Resistance: The bore matches the pipe diameter when open, minimizing pressure drop.
확실한 밀봉: Utilizes flammable-resistant materials like PTFE 또는 metal seals for tight shut-off even under high pressure.
Simple Maintenance: Top-entry design allows for in-line maintenance or seat replacement under pressure, enhancing safety. It is imperative to select a model specifically designed for oxygen service.
Our oxygen-specific ball valves adhere to the highest safety protocols:
Base Certifications: API, ISO, CE, ABS, BV, CCS.
Oxygen-Specific Standards: Fully compliant with EIGA IGC 33/12, ASTM G93 cleanliness, and CGA G-4.1 guidelines for oxygen piping.
Fire Safety: Designed to meet API 607 / ISO 10497 fire test standards, ensuring basic sealing integrity in a fire event.
Fire-safe design is paramount for oxygen valves, implemented through:
DBB Function: If the soft primary seat is destroyed by fire, a metal-to-metal secondary seal (e.g., ball to body) engages via spring force to provide a secondary seal and prevent major leakage.
Anti-Static Design: Spring-loaded anti-static devices ensure electrical continuity between the ball, stem, and body to safely dissipate static charges generated during operation.
Fire-Resistant Construction: 특징 monobloc cast bodies to avoid gaskets vulnerable to high heat. All potential leak paths use fire-resistant packing 그리고 seal welds.
Strict “oil-free” procedures are mandatory:
Pre-Installation: Verify the Certificate of Cleanliness. Keep valves in original packaging until the moment of installation. Personnel must wear oil-free gloves and clean garments.
During Installation: 사용 dedicated, oil-free tools. Ensure connecting piping is thoroughly purged. Install according to valve orientation (typically bidirectional, no flow direction restriction).
Operation & Maintenance:
Slow Initial Operation: Cycle the valve slowly several times upon first use to purge any potential micro-particles.
Oil-Free Maintenance: Never apply unapproved lubricants. All maintenance must be performed in a clean environment by oxygen-safety-trained personnel using oxygen-compatible solvents.
Materials must meet compatibility, flammability resistance, and low friction criteria:
Pressure-Containing Parts: Stainless steel (316L) is preferred for its strength and compatibility. Austenitic stainless steel may be specified for cryogenic LOX.
Sealing Materials: Primary seats must be flammable-resistant, such as glass or carbon-filled modified PTFE 또는 PCTFE. Any rubber or combustible plastics are strictly prohibited.
Lubricants: All assembly lubricants must be certified oxygen-compatible, dry-film types like molybdenum disulfide or PTFE-based, applied sparingly.
Absolute Prohibitions: Materials like aluminum, titanium, magnesium (flammable in pure O2) and any oil-containing or organic materials are forbidden.
Selection balances leak-tightness with safety:
Welded Ends: Safest and most reliable, with no leakage points. Used for high-purity, high-pressure, hazardous services. Requires stringent post-weld heat treatment and piping cleanliness.
Flanged Ends: Facilitate disassembly and maintenance. Must use oxygen-service-specific gaskets (e.g., annealed copper, spiral wound) with even bolt tightening.
Threaded Ends: Recommended only for small-bore, low-pressure services. Must use oxygen-compatible sealants (e.g., PTFE tape), never hemp or oil-based pastes.
To ensure full compliance, request the following in addition to standard specifications:
Certificates of Conformance: Material Compliance Certificate (MTC) 그리고 Certificate of Cleanliness.
Test Reports: Fire Test Report, Anti-Static Test Report, 그리고 Factory Acceptance Test (FAT) Report.
Design Documentation: Maximum Allowable Velocity Calculations, proving the design adheres to oxygen velocity safety limits.
Operational Guidance: Detailed Installation, Operation, and Maintenance manual, particularly regarding initial purging procedures.