SDNR Flanged / Threaded

SDNR Valve

An SDNR (Screw Down Non-Return) Valve is a critical flow-control valve designed to allow fluid flow in one direction while preventing backflow. It combines the functions of a globe valve and a check valve, making it ideal for applications where controlled shut-off and non-return protection are required.

SDNR Valve Specifications

  • 1. Body Material – CS / DCI / CI / Bronze

Internals – SS316 / SS304 / SS410 / Bronze

Seat – Metal to Metal / Soft customized

  • 2.Range- DN 15 To DN 200 for flanged

DN 15 To DN50 for Threaded

  • 3. Class – PN 10 , PN16 , #150 , #300

& DIN stand for Marine Applications.

  • Size: 1/2″ – 8″
  • Rating: 150LB – 300LB / PN10 – PN16
  • End Connection: RF / FF /  NPT / BSP
  • Trim: Available in all Trim configuration

Material: Carbon Steel / Stainless Steel / Special Alloy Steel / Bronze

Operations

  • ​Handwheel
  • Gear Boxes
  • Power Actuation (Hydraulic, Pneumatic, Electric)
  • Valve Position Indicators
  • Extension Spindles
  • Chain Wheels

SDNR Valve – Features & Benefits

  • Ensures positive shut-off with screw-down mechanism
  • Prevents reverse flow to protect pumps and pipelines
  • Robust construction for high pressure and temperature applications
  • Low maintenance and long service life
  • Suitable for steam, oil, gas, water, and industrial fluids

SDNR Valve Applications

Our SDNR valves are widely used in:

  • Oil & Gas industries
  • Marine and shipbuilding applications
  • Petrochemical plants
  • Power generation units
  • Fire fighting and utility pipelines
  • Industrial process lines

Why Choose Our SDNR Valves?

We are a trusted manufacturer and supplier of SDNR valves, delivering high-quality industrial valves that meet international quality and safety standards. Our valves are engineered for reliability, efficiency, and durability in demanding industrial environments.

✔ Manufacturer of industrial valves
✔ Compliance with international standards
✔ Reliable supply & timely delivery
✔ Custom solutions for project needs
✔ Professional technical support

Manufacturer & Supplier of SDNR Valves

We manufacture and supply premium-quality SDNR valves for industrial, marine, and infrastructure projects. Each valve undergoes strict quality inspection to ensure leak-proof performance and operational safety.

👉 Looking for SDNR Valves for your project?
📩 Contact us today for technical details, pricing, and customized solutions.
📞 Our team is ready to assist you with the right valve selection.