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Fittings and Accessaries
Marine or Seawater Cast Bronze Gate Valve
Bronze Gate Valve is engineered exclusively for marine and offshore seawater service applications, crafted from high-grade marine cast copper bronze (e.g., Ni-Al-Bronze C95800/C95400,Tin-Bronze C83600) for unrivaled resistance to seawater corrosion, pitting and crevice corrosion. Designed for reliable on/off flow control in shipboard and offshore piping systems, this gate valve features a robust bronze forging and casting structure that eliminates rust and degradation in saltwater environments, ensuring long-term sealing performance and low maintenance even under harsh marine operating conditions. It adheres to international marine and industrial standards, with optimized flow paths for minimal pressure loss and smooth media circulation, making it the premium choice for seawater intake/discharge, ballast water systems, cooling water lines and other marine seawater handling applications.
Key Features
-Marine-Grade Cast Bronze Construction: High-purity tin/aluminum bronze alloy for superior seawater, brine and salt spray corrosion resistance—no rust, no material fatigue in marine environments.
-Marine-Optimized Sealing Design: Metal-to-metal bronze sealing face (or optional PTFE marine-grade soft sealing) ensures zero leakage under rated marine pressure and temperature, with excellent wear resistance for frequent operation.
-Dual Stem Options: Available in rising stem (OS&Y) and non-rising stem designs—rising stem for visual position indication of the gate, ideal for marine critical piping; non-rising stem for space-saving installation.
-100% Factory Tested: Every valve undergoes marine-grade hydrostatic pressure test (shell and seat) and air tightness test before delivery, complying with marine quality control requirements to ensure no leakage.
-Corrosion-Resistant Accessories: All auxiliary parts (gaskets, fasteners) use marine anti-corrosion materials (316SS, Monel) to match the bronze body, achieving full-system corrosion protection.
Technical Specifications
-Design Standard:API600,ASEM B16.34,API602,MSS-SP-80,JIS,DIN3352
-End Connection: Flanged end (ASME B16.5,ASME B16.47,B16.11,B16.25,MSS-SP-44,EN1092-1),Threaded end(ASME B1.20.1)
-Face to face:ASME B16.10,EN558,Customized
-Test Standard: API598,EN12266-Size:NPS 1/2″~12″
-Pressure: 150LB,300LB,PN10,PN16,PN25
-Body Material: Bronze(B62/C95500/C95800),etc
-Trim Material:Bronze,Stainless steel,Monel,etc
-Bonnet Type:Bolted bonnet,Extended bonnet,Union bonnet
-Operation:Handwheel,Gearbox,Electric,Pneumatic,Bare shaft with ISO top flange, etc.
Application
-Operating Temperature: -10℃ ~ 120℃ (Suitable for normal marine seawater service temperature)
-Primary Media: Seawater, marine brine, saltwater cooling fluid, coastal industrial seawater, ship ballast water
-Applicable Scenarios: Ocean-going ships, coastal vessels, offshore oil/gas platforms, marine power plants, port seawater treatment systems, coastal desalination projects, marine engineering equipment.
