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KS Stainless Steel Middle Flange Check Valve
Technical Requirement:
- Design & Manufacture: KS B 2361
- Face-to-Face: KS B 2361
- End Flanges: KS B 2361 (10K Flange Standard)
- Inspection & Test: KS B 2304
Description
The KS Stainless Steel Middle Flange Check Valve is a reliable, automatic valve designed to prevent backflow in piping systems. Constructed from durable SCS13 stainless steel, it meets rigorous Korean Industrial Standards for safety and performance. The valve features a bolted bonnet design for easy maintenance and a swing disc mechanism that ensures efficient, unidirectional flow, making it essential for protecting pumps in corrosive environments.
Technical Specifications:
- Pressure Class: 10K (Approx. 10 kgf/cm² / PN10)
- Size Range: DN50 – DN200
- Applicable Medium: Water, Oil, Gas, and Nitric Acid Corrosive Liquid
- Operating Temperature: ≤ 150°C
- Test Pressure: Shell 2.1 MPa / Seal 1.6 MPa
Main Parts & Materials:
| Parts Name | Materials |
| Body, Bonnet | SCS13 |
| Disc | SCS13 |
| Pin | STS304 |
| Gasket | PTFE |
Key Product Features:
- Automatic Swing Mechanism: The hinged disc opens with forward fluid pressure and closes automatically under gravity and reverse pressure to prevent backflow.
- Corrosion-Resistant Construction: Made entirely from SCS13 (SS304) stainless steel, providing excellent resistance to rust and chemical corrosion for long service life.
- Bolted Bonnet Design: The middle flange connection allows for secure sealing and easy access for maintenance and internal inspection.
- Low Flow Resistance: The full-port swing design minimizes pressure drop and turbulence when the valve is fully open.
- KS Compliance: Manufactured and tested in strict accordance with KS B 2361 and KS B 2304 standards.
Applications:
Ideal for Chemical Processing, Marine Applications, Pharmaceutical Manufacturing, and General Industrial Piping. Specifically suited for pipelines carrying nitric acid or corrosive liquids where a durable, corrosion-resistant check valve is required to protect pumps and maintain system integrity.
Additional information
| Standard | KS / JIS |
|---|
