Marine Cast Iron Check Valve

Marine Cast Iron Check Valve

Certificate: CCS, GL, BV certificate, etc.
Delivery Time: 15 days
Place of Origin: China
Packing Details: Export standard packaging.

Category:

GB/T 592 Marine Cast Iron Check Valve | Non-Slam Design | Multi-Medium Application

Product Overview & Marine Applications

Engineered to meet GB/T 592 standards, our Marine Cast Iron Check Valve delivers reliable non-return protection for various marine fluid systems. The valve features a robust cast iron body with bronze internals, specifically designed to handle seawater, freshwater, oils, and low-temperature steam applications aboard vessels and offshore installations.

Primary Marine Applications:

  • Seawater Cooling Systems: Prevents backflow in engine and equipment cooling circuits

  • Fuel Oil Transfer Lines: Ensures unidirectional flow in bunkering and fuel supply systems

  • Lubricating Oil Systems: Maintains proper flow direction in machinery lubrication systems

  • Ballast & Bilge Systems: Provides backflow prevention in water management systems

  • Low-Pressure Steam Lines: Suitable for steam systems under 250°C

Technical Specifications

  • Standard Compliance: GB/T 592 Marine Valve Standard

  • Pressure Ratings: 0.6MPa, 1.0MPa, 1.6MPa (6, 10, 16 bar)

  • Size Range: DN20 to DN150 (½” to 6″)

  • Body Material: High-Quality Gray Cast Iron

  • Trim Materials: Bronze Disc & Aluminum Bronze Seat

  • Temperature Range: -20°C to 250°C

  • Media Compatibility: seawater, freshwater, lubricating oil, fuel oil, steam

  • End Connections: Flanged (GB/T standard)

Material Construction

  • Body & Cover: Gray Cast Iron (GG25) – Excellent corrosion resistance

  • Disc: Cast Tin Bronze – Superior wear resistance and marine compatibility

  • Seat: Cast Aluminum Bronze – Enhanced durability and sealing performance

  • Optional Materials: Available in bronze, stainless steel, and other materials upon request

Custom material configurations available for specific application requirements

Key Features & Benefits

  • Non-Slam Design: Smooth disc movement prevents water hammer and system shock

  • Multi-Medium Compatibility: Suitable for water, oil, and steam applications

  • Corrosion Resistant: Bronze internals withstand marine environments

  • Low Maintenance: Simple design ensures long service life with minimal maintenance

  • Reliable Sealing: Positive shutoff prevents backflow and system contamination

  • Compact Design: Space-saving configuration for marine installations

  • Easy Installation: Standard flanged connections simplify mounting

Dimension Tables

Type A & Type B (PN1.0 & PN1.6)

DN L H H1 D D1 D2 n-d Weight (kg)
65 290 115 130 155 123 104 6-M14 15.1
80 310 125 151 170 138 118 8-M14 18.3
100 350 150 171 190 158 138 8-M14 24.8
125 400 175 189 215 183 164 10-M14 34.7
150 480 180 219 240 208 190 12-M14 48.4

Type AS & Type BS (PN0.6 & PN1.0)

| DN | L | H | D | D1 | D2 | n-d | Weight (kg) |
|—-|—|—|—|—-|—-|—-|—–|————|
| 50 | 230 | 125 | 140 | 110 | 90 | 4-M12 | 9.4 |
| 65 | 290 | 145 | 160 | 130 | 110 | 4-M12 | 15.5 |
| 80 | 310 | 155 | 190 | 150 | 128 | 4-M16 | 19.2 |
| 100 | 350 | 175 | 210 | 170 | 148 | 4-M16 | 28.6 |
| 125 | 400 | 200 | 240 | 200 | 178 | 8-M16 | 38.2 |
| 150 | 480 | 225 | 265 | 225 | 202 | 8-M16 | 52.0 |

The description/sizes may be different with goods, please check with us when order.

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