Кованые шаровые краны малого диаметра
Номинальный диаметр：1/2”-2”(DN15-DN50)
Номинальное давлениеКласс 150-2500 (1,0 МПа-320 МПа)
Максимальная рабочая температура：425℃
Материал оболочкиCW6MC，N06625，N10276，Монель К500，Инконель 718, CY40，М35-1，А105，Ф304，Ф316，F316L
Стандарты проектирования: API 6D, ISO 17292, ASME B16.34, GB/T 12237, EN 1984, DIN 3202, JIS B2071.
СвязьФланец, сварной шов
режим движения: Ручной, Электрический, Пневматический, Гидравлический
Кованые шаровые краны малого диаметра
Определение характеристик продукции и обеспечение ее безопасности:
Small Bore Forged Ball Valves are the ultimate safety barrier for high-pressure micropipeline systems, achieving ultra-high strength (Class 150-4500) in sizes ranging from DN15 to DN50 (1/2″-2″) through forging. In applications such as instrumentation valve assemblies, hydrogen sampling, and supercritical fluid control, their full-bore design ensures zero-pressure-loss flow paths while resisting high-pressure impacts and frequent opening and closing wear, redefining the performance standards for small-bore high-pressure valves.
JH Small Bore Forged Ball Technology Gene
- Multi-directional forging structure: Three-directional forging using a 10,000-ton press, grain size reaches ASTM level 7.
- High-pressure metal hard seal: supersonic spraying of tungsten carbide, hardness ≥72HRC
- Microchannel zero dead zone: Mirror polished flow channel (Ra≤0.8μm), dead zone volume≤0.1cc
- Low-temperature corrosion protection extension: -196℃ cryogenic treatment, certified by NACE MR0175.
- Технический анализ продукта
- Система привода
- Технология ковки/литья
The superior performance of JH Small Bore Forged Ball Valves stems from innovative microfluidic technology: the multi-directional forging structure, achieved through axial, radial, and tangential forging, ensures 100% grain flow lines conform to the valve body contour, completely eliminating casting defects; the high-pressure metal hard seal utilizes supersonic tungsten carbide spraying combined with Inconel 718 spring preload, maintaining absolute sealing under Class 4500 pressure; the microfluidic zero-dead-zone design, through mirror polishing and a fully encapsulated ball, controls the dead-zone volume to within 0.1cc; and cryogenic corrosion protection, achieved through deep cryogenic treatment and surface nitriding, meets the demands of extreme environments. This comprehensive technological system ensures the outstanding performance of small-bore forged steel ball valves in high-pressure microfluidic control.
Dedicated drive solution to meet the precision micro-flow control requirements of small-diameter valves
Основной дизайн:
▌ Pneumatic precision adjustment → Miniature cylinder system | Control accuracy ±0.2°
▌Электрическое интеллектуальное управление → High-Resolution Positioning | Response Time ≤ 1.0s
▌ Manual fine-tuning → Precision worm gear drive (ISO 5211) | Operating torque ≤25 N·m
▌ Интеллектуальная система обратной связи → High-Precision Position Sensing | Resolution ±0.1°
Specialized forging processes for small diameters ensure ultimate performance, while micro-forging processes and high-pressure structures guarantee performance.
Основной дизайн:
▌ Multi-directional forging → Three-directional forging process (ASTM A105/A182 F316L) | Grain size ≥ 7
▌ Precision machining → 5-axis machining center | Dimensional tolerance ±0.01mm
▌ Обработка для укрепления поверхности → Supersonic spraying of tungsten carbide | Surface hardness ≥72HRC
▌Full-size inspection → 3D measurement + microscopic inspection | 100% pass rate
Основные характеристики конструкции и преимущества
- Compact Multi-directional Forging Structure: These Small Bore Forged Ball Valves are forged using a 10,000-ton press in three directions → Burst Pressure ≥ 6 × PN | Impact Energy ≥ 100 J at -46℃
- High-pressure metal hard seal: This small-diameter forged steel ball valve is equipped with a supersonic spray sealing system → Sealing pressure ≥110MPa | Leakage rate ≤Class VI (API 598)
- Zero Dead Zone Microchannel: JHSmall Bore Forged Ball Valves employ mirror-polished channels → Surface roughness Ra≤0.8μm | Dead zone volume≤0.1cc
- Low-Temperature Corrosion Resistance Extension: This small-bore forged steel ball valve offers professional modification options → -196℃ low-temperature impact ≥27J | NACE MR0175 certified.
- Точное управление приводом: These Small Bore Forged Ball Valves are compatible with dedicated actuators → Control accuracy ±0.2° | Meeting micro-flow regulation requirements
- Проверка на длительный срок службы: This small-diameter forged steel ball valve has undergone rigorous testing and verification → Service life ≥ 500,000 cycles | Maintenance cycle extended by 400%
ЧАСТО ЗАДАВАЕМЫЕ ВОПРОСЫ-Кованые шаровые краны малого диаметра
Small Bore Forged Ball Valves are specifically designed for demanding conditions such as high pressure, high temperature, corrosive or hazardous media. Typically referring to valves of DN50 (2 inches) and below, they are widely used in instrumentation, sampling systems, vent lines, and high-pressure injection points in industries like petrochemical, power, and pharmaceuticals, where high reliability, safety, and compact size are critical.
The forging process offers significant advantages for small bore ball valves:
Superior Structural Integrity: Forgings have a dense, uniform grain structure, free from casting defects like pores and inclusions.
Better Mechanical Properties: Generally superior in strength, toughness, and fatigue resistance, making them more capable of withstanding pressure shocks, vibration, and frequent cycling.
Повышенная безопасность: Forged bodies provide more reliable containment for high-pressure, thermal cycling, or hazardous fluid services.
Lightweight and Compact: Can be designed to be lighter and more compact while maintaining strength, ideal for space-constrained locations.
Essential parameters for selection include:
Pressure & Temperature Rating: Define the maximum working pressure and temperature range (considering fluctuations).
Средние характеристики: Corrosiveness, toxicity, and presence of solid particles.
Материалы кузова и отделки: Select appropriate forging materials (e.g., A105, F304, F316) and seal materials (e.g., PTFE, RPTFE, PEEK, metal seals) based on media compatibility, pressure/temperature, and corrosion resistance.
Завершение соединений: Threaded (NPT, BSP), Socket Weld (SW), Butt Weld (BW), or Flanged.
Требования к герметизации: Soft seals (bubble-tight) or hard seals (wear-resistant, high-temperature).
Proper installation is critical:
Чистота трубопроводов: Thoroughly clean pipelines before installation to prevent damage from welding slag, rust, or other debris.
Alignment & Stress: Ensure proper alignment to avoid imposing pipeline stress on the valve body.
Защита при сварке: For weld-end valves, take measures (e.g., cooling) to protect internal seals from welding heat damage.
Tightening Force: Use torque wrenches and tighten bolts evenly in a crisscross pattern for flanged connections; avoid excessive force for threaded ends to prevent damage.
Операция «Космос»: Ensure sufficient clearance for valve operation and maintenance.
We ensure reliable sealing through multiple design features:
Quality Forged Body: Ensures density and strength from the source.
Advanced Seal Design: Selects appropriate seal types and materials for the service conditions, such as blowout-proof stem design and self-compensating seats.
Прецизионная обработка: High standards for ball sphericity, surface finish, and component machining accuracy.
Тщательные испытания: Each valve undergoes strict pressure tests (shell, seat) and performance checks before shipment.
Our products strictly adhere to international standards and can be supplied with certifications including CE, ISO 9001, API 6D, ABS (American Bureau of Shipping), BV (Bureau Veritas), CCS (China Classification Society), and fire-safe certifications (like API 607/API 6FA).
Potential reasons include:
Material Build-up or Blockage: Accumulation of media impurities in the valve cavity or around the stem.
High Operating Torque: Over-tightened packing, bent stem, or high differential pressure.
Internal Component Damage: Worn bearings, scratched ball, etc.
Напряжение при монтаже: Pipeline stress causing body distortion.
We offer professional customization services and can tailor valves to your needs, including:
Специальные материалы: Such as sour service materials, duplex steels, high-temperature alloys.
Special Pressure & Temperature Ratings: Meeting requirements beyond standard series.
Special Connection Specifications: Non-standard threading or weld ends.
Special Seal Types & Materials: Such as low emission seals, metal seated seals.
Various Actuation Options: Manual, pneumatic, electric, or hydraulic actuators.