CE Certified · PED 2014/68/EU Compliant · Foundry-Integrated

CE Certification Aluminum Bronze Butterfly Valve Supplier & Factory

Engineering high-integrity C95800 / CuAl10Fe5Ni5 quarter-turn flow control systems for critical marine seawater, desalination plants, offshore drilling platforms, and harsh chemical environments.

100% Shell & Hydrostatic Test
C95800 / Ni-Al-Br High-Purity Alloy
50+ Countries Supplied
Zero Crevice & Pitting Drift
Primary Flow Systems

High-Performance Engineering Pipeline Valves

Explore our industrial range verified for pressure compliance, tight mechanical tolerances, and reliable service life.

Technical Authority

Metallurgical Superiority: Nickel-Aluminum Bronze (NAB) Mechanics

Why modern marine and process engineers specify C95800 Aluminum Bronze over austenitic stainless steels for high-salinity and corrosive media.

Protective Cuprous Oxide (Cu2O) Passive Film

Aluminum Bronze alloys (ASTM B148 C95800 / EN 1982 CC333G) spontaneously formulate an adherent cuprous oxide passive layer enriched with aluminum oxide when exposed to seawater. This micro-layer self-heals under continuous shear stress, preventing runaway galvanic pitting, erosion corrosion, and stress corrosion cracking that commonly compromise 316L stainless steel.

CE / PED 2014/68/EU Module H Conformity

Every valve manufactured in our facility adheres to the European Pressure Equipment Directive (PED) 2014/68/EU. Full traceability is maintained with EN 10204 3.1 material test certificates for chemical composition (Cu, Al, Fe, Ni, Mn) and mechanical properties, alongside non-destructive testing (NDT), ultrasonic examination, and hydrostatic pressure testing according to EN 12266-1 Rate A.

Inherent Anti-Biofouling & Cavitation Shield

The steady release of copper ions creates natural biocidal action across the disc and waterway, preventing marine macro-fouling such as barnacles, algae, and micro-crustaceans. This metallurgical property eliminates the operational torque spiking and premature seat tearing typical of organic fouling in offshore ballast and cooling loops.

Manufacturing Precision

Why Sourcing from Our Tianjin Valve & Elastomer Plant Secures EPC Budgets

Combining vertically integrated casting foundries, proprietary elastomer vulcanization since 1987, and precision CNC tooling on a unified industrial campus.

Vertical Integration: In-House Foundry to Hydrotest

Unlike assembly-only contractors, we manage the entire value chain: raw ingot smelting, green sand and vacuum casting, multi-axis CNC machining, seat moulding, vulcanization, and pneumatic/hydrostatic inspection. This vertical structure prevents foundry-to-assembly quality discrepancies and eliminates intermediate distributor markups.

Proprietary Elastomer Compounding (Since 1987)

Originating from Tianjin Dongfang Rubber Factory, our in-house elastomer laboratory formulates custom virgin EPDM, NBR, and FKM seats. By controlling cross-linking density, tensile strength, and compression set resilience, our seats offer lower dynamic friction coefficients, tighter bi-directional bubble-tight shut-off, and resistance to rapid decompression.

Agile Lead Times & Strategic Tianjin Port Access

Situated in the Wuxia Industrial Park with direct expressway access to Tianjin Port, our plant optimizes supply chain logistics. Standard orders ship in 3 to 4 weeks, with expedited production available for unexpected downtime and scheduled drydock overhauls worldwide.

Engineering Specifications

CE Certified Aluminum Bronze Butterfly Valve Engineering Parameters

Comprehensive design and material parameters for municipal engineering, offshore contractors, and pipeline designers.

Design Attribute Wafer / Lug / Double Flanged Concentric Double & Triple Offset High Performance
Nominal Diameters DN40 to DN1200 (1.5" to 48") DN80 to DN1600 (3" to 64")
Pressure Ratings PN10, PN16, PN25, ASME Class 150 PN16, PN25, PN40, ASME Class 150 / 300 / 600
Body & Disc Metallurgy ASTM B148 C95800 / C95400, EN 1982 CC333G (CuAl10Fe5Ni5) C95800 Body / Nickel-Aluminum Bronze Disc + Stellite Trim
Stem Metallurgy Monel K500, Hastelloy C276, 17-4PH, Inconel 625 Monel K500, Duplex 2205, Super Duplex 2507
Seat Elastomer Options In-house Formulated WRAS-Grade EPDM, NBR, Viton, PTFE Solid Metal-to-Metal C95800, PTFE, Fire-Safe Inconel 718
Testing Standards API 598, EN 12266-1 Rate A (Zero Leakage), ISO 5208 API 598, ISO 5208 Rate A, API 607 Fire Safe 6th Edition
Applicable Media Raw Seawater, Reverse Osmosis Brine, Brackish Water, Ballast Hydrocarbons, Marine LNG Fuel Bunkering, High-Pressure Firewater
Certifications CE (PED 2014/68/EU Module H), ISO 9001, WRAS Approved CE / PED, DNV, Bureau Veritas, Lloyd's Register on Request
Industry Applications

Macro Engineering Solutions & System Integration

Field-proven performance across demanding industrial environments worldwide.

SWRO Desalination Plants

Seawater Reverse Osmosis operates with high chloride concentrations and high pressures. Our C95800 valves resist high-velocity brine impingement, preventing the localized pitting and wash-out common to standard stainless trim.

Marine & Commercial Shipbuilding

Installed across ballast water treatment systems (BWTS), bilge management, and main engine seawater cooling. Inherent biocidal properties stop biological growth, ensuring low torque and tight shut-off during long voyages.

Offshore Oil & Gas (FPSO/FLNG)

Essential for firewater deluge mains, seawater cooling, and topside process modules. Engineered with Monel stems and blow-out proof architecture to withstand platform vibration and marine atmospheric corrosion.

Coastal Power Generation HVAC

Nuclear and combined-cycle coastal stations use millions of gallons of seawater for turbine cooling. Our double-flanged and wafer designs maintain zero-leakage control without micro-cracking under turbulent flow.

Strategic Procurement Intelligence

Global Sourcing Trends & Lifecycle Economics

How international procurement managers evaluate total cost of ownership (TCO) across complex process environments.

Shift from Super Duplex to Aluminum Bronze

While 2507 Super Duplex stainless steel delivers high tensile strength, it can suffer from chloride pitting and sigma-phase embrittlement if heat treatment fluctuates. C95800 Aluminum Bronze provides consistent castability, crack resistance, and cost savings of 25% to 40% on large-diameter valves without sacrificing marine durability.

Digital Actuation & Predictive Monitoring

Global operators increasingly require valve bodies configured with ISO 5211 direct-mount top flanges to support smart pneumatic and electric actuators. Our balanced stem designs deliver low breakout torque, allowing the use of smaller actuator packages, reduced energy consumption, and real-time predictive wear tracking.

Tightening Decarbonization Mandates

With stricter fugitive emission rules (ISO 15848-1) and regional industrial standards, buyers now focus on packing integrity and disc geometry. Our precision CNC-machined disc profiles and molded rubber seats minimize turbulent pressure drop, lowering pump electrical demand throughout pipeline life cycles.

Technical FAQ

Frequently Asked Questions on Aluminum Bronze Valves & Factory Standards

Key information regarding material traceability, European certifications, chemical compatibility, and lead times.

What makes C95800 Aluminum Bronze preferable to 316 Stainless Steel in seawater systems?
316 and 316L stainless steel rely on a chromium oxide film that easily breaks down in stagnant or oxygen-deprived chloride environments, leading to rapid crevice corrosion and pitting. In contrast, ASTM B148 C95800 forms a tough copper-aluminum oxide passive layer that self-repairs in flowing seawater and resists pitting, cavitation damage, and marine growth.

How does your factory ensure compliance with CE and PED 2014/68/EU?
Our quality management system operates under ISO 9001 and PED 2014/68/EU Module H. All pressure-retaining castings are tracked back to their molten charge numbers. Valves undergo visual inspection, wall-thickness verification, hydrostatic shell testing at 1.5x nominal pressure, and bi-directional seat leakage testing at 1.1x nominal pressure in accordance with EN 12266-1 Rate A standards.

Can your Aluminum Bronze butterfly valves be configured for potable water?
Yes. We manufacture selected butterfly valves with WRAS-approved EPDM elastomer seats formulated in our in-house rubber facility. These seats contain zero toxic plasticizers or leachable organic chemicals, complying with British WRAS and European drinking water standards.

What stem materials are paired with Aluminum Bronze bodies to prevent galvanic corrosion?
To prevent internal galvanic coupling, we avoid using standard carbon or lower-grade austenitic stainless steel stems. Instead, we use metallurgically matched materials such as Monel K500, Hastelloy C276, Inconel 625, and high-strength 17-4PH or Duplex 2205 with compatible galvanic potentials.

What end-connection standards and drillings can your CNC tooling support?
Our multi-axis CNC machines produce wafer, lug, and double-flanged bodies drilled to EN 1092-1 (PN10/PN16/PN25), ASME B16.5 / B16.47 Class 150/300, BS 10 Tables D/E, and JIS B2238 (10K/16K). Grooved and customized long-pattern face-to-face designs are also available upon request.

What is your typical production lead time and export capability?
Because we operate our own casting foundry and rubber compounding facility in Tianjin, typical batch delivery ranges between 20 and 35 calendar days. For urgent drydock or plant overhaul projects, expedited production schedules are available with direct container consolidation through Tianjin Port.
Certified Fleet Additions

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