ANGLE TYPE SDNR SDSL VALVE High-Performance Marine Valve

The ANGLE TYPE SDNR SDSL VALVE (Screw Down Non-Return / Screw Down Screw Lift) is a heavy-duty industrial and marine angle globe valve engineered for critical piping systems requiring reliable flow regulation, positive shut-off, and backflow prevention. Designed with a $90^\circ$ angle body, it minimizes pressure drop and eliminates the need for additional pipe elbows in tight marine engine rooms and industrial fluid processing lines.

Manufactured in strict accordance with international standards—including ASME B16.34, BS1873, and JIS 10K—the ANGLE TYPE SDNR SDSL VALVE provides versatile operation in both non-return (check valve) and positive screw-lift configurations. Available in size ranges up to 400 mm (with custom engineering available through Voyage Marine Automation for sizes above 400 mm), it is built with high-grade marine alloys to withstand aggressive saltwater, fuel oil, steam, and high-pressure media.

Key Features of the ANGLE TYPE SDNR SDSL VALVE

• Dual Functionality (SDNR / SDSL): Configurable as Screw Down Non-Return (acting as a check valve when unseated) or Screw Down Screw Lift (positive mechanical attachment between stem and disc)

• Space-Saving $90^\circ$ Angle Design: Functions simultaneously as a flow control valve and a $90^\circ$ elbow, reducing installation footprint and piping costs

• Rigorous Inspection Standards: Tested and validated under API 598 and BS 6755 for high-pressure shell integrity and seat tightness

• Diverse Metallurgy Options: Cast and forged material choices tailored for marine immersion, corrosive chemicals, high-temperature steam, and general industrial duties

• Flexible Actuation Integration: Supports manual handwheel operation as well as single/three-phase electrical, hydraulic, and pneumatic actuation systems

• Wide Size Range: Standard production up to 400 mm nominal diameter, with specialized custom manufacturing beyond 400 mm available via Voyage Marine Automation

Primary Marine & Industrial Applications

• Shipboard Piping Systems: Main and auxiliary engine cooling lines, bilge and ballast systems, sea suction manifolds, and boiler feed lines

• Offshore Platforms: Chemical injection systems, seawater lift service, and firemain networks

• Industrial Processing Plants: High-pressure steam lines, fuel distribution systems, and wastewater management facilities

Technical Specifications

Package Contents & Custom Options

• 1 × ANGLE TYPE SDNR SDSL VALVE Assembly

• Installed Actuator or Manual Handwheel (per order specification)

• Factory Pressure Test Certificate & Material Mill Certificates (API 598 / BS 6755)