Category

Details

Size Range

DN50~DN1200 (2″~48″), with a focus on large-diameter applications (e.g., DN600) for high-flow pipeline systems.

Pressure Rating

Class 150~600 (2.0MPa~10.0MPa), accommodating moderate to high-pressure systems in industrial and municipal settings.

Temperature Range

-20°C~425°C, suitable for both cryogenic and high-temperature media (e.g., chilled water, steam, thermal fluids).

Design Standards

AWWA C504 (municipal waterworks), ASME B16.34 (valve dimensions), API 609 (butterfly valves for pipeline service).

Material Composition

– Body & Lug: Aluminum bronze (ASTM B148 C95800), an alloy with high copper content (≥85%) plus aluminum, iron, and nickel, offering exceptional corrosion resistance in saline and wet environments.
– Disc: K400 (austenitic manganese steel), featuring high hardness (HB ≥400) and toughness, resistant to abrasion from solids and slurries.
– Seal: Multi-level hard seal with alloy coating (e.g., nickel-chromium or stellite), providing metal-to-metal sealing and resistance to high temperatures and wear.
– Stem & Gear: Stainless steel (316) for corrosion resistance, ensuring smooth operation in harsh environments.

Connection Type

Lug-type (per AWWA C504/ASME B16.1), with bolt holes in lugs aligning with pipeline flanges. Enables installation between flanges without full disassembly and allows unilateral maintenance.

Actuation

Manual gear operation (standard), reducing torque by 30~50% for easy handling of large-diameter valves. Optional pneumatic or electric actuators (ISO 5211 mounting) for automated control in industrial systems.

Performance Metrics

– Leakage Class: ANSI/FCI Class V (zero leakage under test pressure), critical for hazardous or valuable media.
– Hydrostatic Test: Body tested at 1.5×rated pressure (e.g., 3.75MPa for Class 150) for 30 minutes.
– Seal Test: Zero leakage verified with air/nitrogen at 1.1×rated pressure (e.g., 2.75MPa for Class 150).
– Cycle Life: ≥100,000 operations with K400 disc maintaining integrity in abrasive media.