Marine environments demand valves to fit cramped spaces with dense piping networks. Traditional butterfly valves, bulky and poorly adaptable, cause 42% of system leakage incidents due to improper installation. For example, in narrow ship compartments, oversized valves often fail to align with tight piping layouts, risking costly downtime.
JRVAL's lug type butterfly valves deliver space-optimized solutions through 30,000+ mold systems covering 20+ standards (ANSI/BS/DIN/JIS). The compact lug flange reduces footprint by 30% with DN40-DN800 precision (≤0.5mm error), while triple sealing (EPDM seat/adaptive ring/stem seals) achieves ISO 15848 Class A leakage (<1×10⁻⁶ Pa·m³/s). Certified by 8 classification societies (CCS/DNV), our solution cut installation time by 58% on a 10,000DWT vessel, reduced piping weight 12 tons, and delivered 7-15 day custom production with 3x lifespan.
10bar~20bar (1.0mpa~2.0mpa)
Design : JRVAL-patented short neck (Compact install)
Body Material : Full SS (CF8M/2205/1.4529), Cu-Ni compatible
Marine-Grade Lugs : Precision tapped lug (1-2T depth); maintenance without drainage; high shear strength
Marine Durability : Water hammer resistance
10bar~20bar (1.0mpa~2.0mpa)
Alloy Composition : Ni ≥3.5%, Cr ≥1.2%, Mo 0.5%; validated by spectroscopy, 45% improvement in impact resistance at -50°C.
Deep Cryogenic Treatment : -196°C PLC-based control, ±15 min processing time accuracy, ≤2% batch performance variation.
Two-Stage Tempering : 650°C high-temperature tempering + 200°C low-temperature tempering, infrared thermometry monitoring, 98.7% residual stress relief.
Machining : Five-axis CNC machining ensures valve seat sealing surface flatness ≤0.003 mm; laser cladding technology achieves surface hardness HRC 48–52.
10bar~20bar (1.0mpa~2.0mpa)
FKM Parts Process : High-Temp Compression Molding (5-8MPa), 180℃ Resistant (No Softening).
Liner Inspection : 25kV Spark Test (Detects 0.01mm Defects).
Key Parts Machining : High-Precision CNC (Body/Disc), ±0.01mm Tolerance, Ra≤0.8μm.
Performance Test : ≥1000 Thermal Cycles @ 180℃ (Stable/No Leak, Saudi Oilfield Simulation).