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J-VALVES
Integrated forged steel body: Main body materials include A105, LF2, F304 and F316 forgings with uniform metallographic structure, excellent impact resistance and high-temperature creep resistance, resisting deformation and leakage under high pressure.
Y-shaped diversion flow channel: 30°-45° inclined sedimentation chamber allows impurities to naturally settle at the bottom of the screen, achieving smooth medium flow, low pressure loss and anti-clogging performance.
Quick-disconnect bolted bonnet: Standard bolted sealing structure enables fast disassembly without special tooling. The screen can be taken out, cleaned and replaced in a short time to drastically reduce downtime.
Customizable blowdown structure: Threaded holes reserved on the bonnet for optional stainless steel blowdown plugs or small blowdown valves to discharge slag online without full disassembly of the strainer cavity.
Multi-layer stainless steel screen: 304/316L double-layer composite woven screen with firm welding and resistance to medium erosion. Mesh count can be customized to intercept fine solid impurities.
Multi-sealing solutions: Toothed metal gaskets, flexible graphite gaskets and PTFE composite seals are optional for durable leak-tight performance under high temperature, low temperature and corrosive media.
Multi-connection compatible structure: Besides standard RF raised face flanges, RTJ ring joint, socket weld, butt weld and NPT threaded connections are expandable to fit various pipeline installation requirements.
Compact lightweight forged housing: Smaller volume and lighter weight than cast steel strainers of the same specification reduce load on pipeline supports and facilitate integration into narrow pipe racks.
| Item | Specification |
Size Range | 1/2″ ~ 12″ (DN15 to DN300) |
Pressure Class | 150LB ~ 2500LB (PN10 to PN420) |
Temperature Range | -29℃ to +450℃ (varies by body material; low-temperature forged steel LF2 suits sub-zero conditions, while high-temperature alloy forgings fit heat transfer oil and steam pipelines) |
Material Configuration | 1. Body: A105, LF2, F304, F316, F11, F22 alloy forged steel 2. Screen: 304, 316L stainless steel woven mesh / sintered perforated mesh 3. Sealing Parts: Flexible graphite, metal spiral wound gaskets, PTFE composite gaskets4. Fasteners: 304 stainless steel bolts, high-temperature chrome-moly alloy steel bolts |
Filtration Precision | 10 mesh ~ 500 mesh (interception particle size: 5μm~2mm, customizable on demand) |
Connection Type | Standard RF raised face flange; optional RTJ ring joint flange, socket weld (SW), butt weld (BW), NPT internal thread |
Design & Manufacturing Standards | ASME B16.34, ASTM forging material standards, SH/T 3411 petrochemical strainer specification |
Face-to-Face Dimension Standard | ASME B16.10 |
Inspection & Test Standards | API 598, ISO 5208, GB/T 13927 |
Applicable Media | Steam, heat transfer oil, natural gas, crude oil, acid & alkaline chemical fluids, cooling water, compressed air, high-purity process fluids |
Oil & Gas Production & Gathering: Pre-filtration for wellhead pipelines, oil & gas treatment stations and long-distance transmission pipelines to intercept formation sand and welding slag, protecting pressure regulating valves and metering instruments.
Thermal & Power Plants: Boiler steam pipelines, heat transfer oil circulation systems and feedwater pipelines to filter limescale and oxide scale, ensuring stable operation of steam turbines and heat exchange units.
Coal Chemical & Fine Chemical Industries: High-temperature high-pressure reaction pipelines and acid-alkali conveying pipelines, resisting corrosive media and intercepting catalyst particles and solid crystalline impurities.
Oil Refining Units: Hydrogenation, reforming and fractionation system pipelines, compatible with flammable and explosive media under high temperature and pressure and compliant with petrochemical safety codes.
Pharmaceutical & Food Industries: Stainless steel forged steel versions fit clean process pipelines with no precipitation contamination to guarantee fluid cleanliness.
Heating & Thermal Pipe Networks: High-temperature hot water and steam heat exchange systems to filter pipeline rust impurities and extend service life of heat exchangers and temperature control valves.
General High-Pressure Industries: Hydraulic oil circuits, compressed air systems and high-pressure water cleaning pipelines to protect pumps, nozzles and precision control valves.
Excellent High Pressure & Temperature Resistance: Forged body eliminates casting porosity defects, enabling long-term stable operation under ultra-high pressure and alternating high-temperature conditions to eliminate safety hazards of medium external leakage.
Full-cycle Cost Reduction via Filtration Protection: Efficient interception of solid impurities drastically lowers wear and failure risks of downstream pumps, valves and instruments, cutting equipment maintenance and replacement costs.
Efficient Maintenance & Minimal Downtime: Quick-disconnect bonnet plus optional online blowdown structure simplifies screen cleaning and replacement without long shutdowns of the whole pipeline section.
Wide Working Condition Adaptability: Optional multiple materials, pressure classes and filtration precision to match low-temperature, high-temperature, corrosive and flammable & explosive media.
Standardized Safety Compliance: Designed in full compliance with American standards and petrochemical industry specifications, passing API hydrostatic and air tightness tests to meet acceptance requirements of petrochemical and power station projects.
Strong Pipeline Integration Compatibility: Unified flange face-to-face dimensions allow direct replacement of imported strainers of the same specification, eliminating pipeline modification for renovation projects and lowering construction costs.
Long Service Life: Forged body features outstanding fatigue resistance and medium erosion resistance, paired with corrosion-resistant stainless steel screens for far longer continuous service cycles than cast steel strainers under normal working conditions.
