III. Features Description

• C95500 Corrosion Resistance: Aluminum nickel bronze forms a dense oxide layer, resisting saltwater corrosion (marine environments) and chemical erosion (acids, alkalis). This outperforms stainless steel in coastal or offshore applications, avoiding rust-related jamming.
• 2PC Structure & Full Bore: The two-piece body (bolted connection) balances structural strength and maintenance accessibility—internal components can be inspected without full disassembly. Full bore design matches pipeline diameter, minimizing pressure drop and enabling unobstructed media flow (critical for viscous oil or slurry).
• Floating Ball Sealing: The ball “floats” against the seat under media pressure, ensuring uniform sealing contact. This self-adjusting design compensates for minor pipeline misalignment, achieving ANSI/FCI Class VI leakage (near-zero) even under pressure fluctuations.
• Versatile Seating Options: PTFE seats handle general media (-27℃~180℃), while PTFE+glass fiber or PPL seats extend service to 220℃ and high pressure (2500LB), adapting to steam or hot oil applications.
• Flange Compatibility: RF/RTJ flanges comply with ASME B16.5, fitting seamlessly into global pipelines. RTJ flanges are ideal for high-pressure systems (900LB+), preventing leakage in gas or oil transmission.

IV. Manufacturing Processes

• Material Validation: C95500 castings undergo spectral analysis to verify alloy content (Al, Ni, Cu) and ultrasonic testing to detect internal defects. Charpy impact tests confirm toughness at -27℃.
• Precision Casting: The body and ball are investment-cast to achieve tight tolerances (±0.05mm), ensuring the ball rotates smoothly without jamming. Cast surfaces are sandblasted to remove impurities.
• CNC Machining: Ball and seat sealing surfaces are CNC-ground to Ra ≤0.8μm, ensuring uniform contact. Flange faces are machined to ASME B16.5 dimensions, with bolt holes aligned to ±0.5mm for easy installation.
• Assembly & Testing:
  • Hydrostatic Test: Body tested at 1.5×rated pressure (e.g., 3.0MPa for 150LB) for 30 minutes; seat tested at 1.1×rated pressure with water to confirm no leakage.
  • Air Leak Test: 0.6MPa air test ensures stem packing and flange gaskets are leak-tight.
  • Operation Test: 100+ open/close cycles verify smooth rotation, with focus on floating ball sealing under pressure.