Marine Bronze SDNR Valve

Marine Bronze SDNR Valve – 5K/16K Bronze Stop Check Non-Return Valve for Marine Applications

Overview

Our Marine Bronze SDNR Valve is a precision-engineered stop check non-return valve designed for critical marine fluid control applications. Manufactured to exact Japanese Industrial Standard F7413 specifications, this marine-grade bronze valve combines the functions of a stop valve and check valve in a compact inline design. Featuring superior bronze construction and compliance with JIS B2220 flange standards, it ensures reliable backflow prevention and flow control in seawater, fuel, and utility systems aboard vessels and offshore platforms.

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Key Features & Benefits

• Dual-Function Design: Serves as both a manual stop valve and automatic check valve in a single compact unit

• JIS Standard Compliance: Manufactured to exact Japanese Industrial Standard specifications for marine service

• Marine-Grade Bronze Construction: Excellent corrosion resistance for seawater, oil, and chemical applications

• Multiple Pressure Ratings: Available in 5K (50 psi) and 16K (160 psi) pressure classes

• JIS B2220 Flange Compatibility: Standard flange dimensions ensure easy installation and system integration

• Reliable Non-Return Protection: Prevents backflow while allowing manual override control when required

• Complete Certification: Manufactured to meet ABS, BV, CCS, LR, DNV, RINA classification society requirements

• OEM Services Available: Custom manufacturing with client branding and specifications

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Technical Specifications

• Design Standard: JIS F7413

• Flange Standard: JIS B2220

• Pressure Ratings: 5K (50 psi) and 16K (160 psi) available

• Temperature Range: -20°C to 200°C

• Body Material: Marine Bronze (CAC401/BC6)

• Trim Materials: Bronze, Brass, and Non-Asbestos Sealing Components

• Nominal Diameter: DN15 to DN40 (½” to 1½”)

• Operation: Manual Handwheel Operation

• Media: Sea Water, Fresh Water, Fuel Oil, Lubricating Oil, Air

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Material Composition

• Body & Bonnet: Marine Bronze (Superior corrosion resistance)

• Disc: Bronze or Brass (Durable sealing surface)

• Disc Nut, Packing Gland, Gland Nut, Stem: Brass (Excellent mechanical properties)

• Handwheel: Cast Iron (Robust operation)

• Hand Nut & Washer: Steel (Secure fastening)

• Split Pin, Indicator Plate/Piece: Brass (Corrosion resistant)

• Packing: Non-Asbestos (Environmentally safe)

• Bonnet Nut: Bronze (Consistent material compatibility)

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Dimension Table (JIS F7413 16K Standard)

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

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