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Stainless Steel Dual Plate Check Valve - China Factory Suppliers for HVAC, Water Supply, Food & Beverage Applications
Description
Stainless Steel Dual Plate Check Valve is a high-performance backflow prevention solution ideal for corrosive or demanding flow systems. Built with two spring-loaded plates, the valve opens with forward flow and closes rapidly upon reversal, ensuring system safety and minimizing water hammer.
This stainless steel dual plate check valve features a wafer-type body for compact installation between flanges. Its corrosion-resistant stainless steel construction makes it suitable for chemical processing, marine pipelines, and water treatment systems where durability is critical.
The dual plate design results in a lower pressure drop compared to traditional swing check valves, contributing to overall energy efficiency. The valve supports both horizontal and vertical upward flow installations and complies with API 594 and EN 12334 standards.
Its lightweight structure allows for easy handling and quick installation, especially in tight spaces. Available in multiple sizes and pressure classes, the stainless steel dual plate check valve is tested for tight shutoff and long-term reliability.
Choose this valve for environments requiring corrosion resistance, minimal maintenance, and consistent flow control without compromise.
This stainless steel dual plate check valve features a wafer-type body for compact installation between flanges. Its corrosion-resistant stainless steel construction makes it suitable for chemical processing, marine pipelines, and water treatment systems where durability is critical.
The dual plate design results in a lower pressure drop compared to traditional swing check valves, contributing to overall energy efficiency. The valve supports both horizontal and vertical upward flow installations and complies with API 594 and EN 12334 standards.
Its lightweight structure allows for easy handling and quick installation, especially in tight spaces. Available in multiple sizes and pressure classes, the stainless steel dual plate check valve is tested for tight shutoff and long-term reliability.
Choose this valve for environments requiring corrosion resistance, minimal maintenance, and consistent flow control without compromise.
- Corrosion Resistant
- API 594 & EN 12334 Compliant
- Low Pressure Drop
- Wafer-Type Compact Body
- Horizontal & Vertical Installation
- Minimal Maintenance
Specifications
Nominal Pressure (MPa) |
1.0 |
1.6 |
|
Nominal Diameter (mm) |
50–1000 |
50–1000 |
|
Test Pressure |
Shell |
1.5 |
2.4 |
(MPa) |
Seal |
1.1 |
1.76 |
Applicable Temperature (°C) |
150 |
||
Applicable Medium |
Fresh water, Sewage, Sea water, Air, Vapor, Food, Medicine, Oils, Acids, Alkalis, etc. |
||
Operating Mode |
Manual, Worm Gear, Pneumatic, Electric, etc. |
||
Standards
Design & Manufacture |
Flange Connection |
Face to Face Dimension |
Test & Inspection |
API 594 |
DIN PN10/16/25 |
API 594 |
API 598 |
Material
Body |
Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel |
Plate |
Ductile Iron, Carbon Steel, Stainless Steel |
Spring |
Stainless Steel |
Hinge Pin |
Stainless Steel |
Plug |
Carbon Steel |
Body Bearing |
PTFE |
Spring Bearing |
PTFE |
Stop Pin |
Stainless Steel |
Eye Bolt |
Carbon Steel |
Body Seat |
NBR, EPDM, Viton, Neoprene |
Frequently Asked Questions
Q
What is a stainless steel dual plate check valve used for?
A stainless steel dual plate check valve is used to prevent backflow in piping systems. It is commonly applied in chemical processing, marine pipelines, water treatment, and other demanding environments where corrosion resistance and reliable flow control are required.
Q
What standards does this dual plate check valve comply with?
This valve is designed and manufactured to API 594 and EN 12334 standards. The flange connection follows DIN PN10/16/25, face-to-face dimensions conform to API 594, and testing and inspection are conducted per API 598.
Q
Can this valve be installed in both horizontal and vertical pipelines?
Yes. The stainless steel dual plate check valve supports both horizontal and vertical upward flow installations, offering flexible deployment options across a wide range of piping configurations.
Q
What size and pressure ranges are available?
The valve is available in nominal diameters ranging from DN50 to DN1000 mm, and in nominal pressure ratings of 1.0 MPa and 1.6 MPa, making it suitable for a wide variety of industrial applications.
Q
What media is this valve compatible with?
This valve is compatible with a broad range of media including fresh water, sewage, sea water, air, vapor, food-grade fluids, medicines, oils, acids, and alkalis, making it highly versatile across industries.
Q
What are the advantages of a dual plate design over a traditional swing check valve?
The dual plate design offers a significantly lower pressure drop compared to traditional swing check valves, which improves energy efficiency. The spring-loaded plates also close more rapidly upon flow reversal, minimizing water hammer and enhancing system safety. Additionally, the wafer-type body is more compact and lightweight, simplifying installation.