Cast Steel Pressure Seal Check Valve-Check Valve-Swing Check Valve

**Product Description:** **Cast Steel Pressure Seal Check Valve** The **Cast Steel Pressure Seal Check Valve** is designed for high-pressure environments where a secure and reliable closure is essential. It features a pressure seal bonnet that enhances the sealing performance under elevated pressure conditions. While a bolted bonnet is also available as an optional design, the pressure seal version ensures a tighter seal as pressure increases. This type of valve utilizes a metal-to-metal sealing mechanism that becomes more effective with increasing internal pressure. The soft iron gasket is pre-deformed to fit the taper on the bonnet, and the thin knife-edge of the gasket is tightly wedged between the body and the bonnet. The shallow angle of the gasket ensures a strong seal with minimal upward force on the bonnet. Once properly assembled, no further adjustments are needed, ensuring a leak-free operation under various thermal or pressure conditions. **Key Features:** - Swing Disc Design for smooth flow control - Pressure Seal Cover for enhanced sealing - Standard Internal Hinge Pin Design - Optional Through-body Hinge Pin Design - Available with Flanged or Butt-welding Ends - Additional options such as extra levers, counterweights, and dampers can be provided **Applicable Standards:** - **Design & Manufacturing:** API 6D, BS 1868, ASME B16.34 - **Face-to-Face Dimensions:** API 6D, ASME B16.10, EN 558 - **End Connections:** ASME B16.5, ASME B16.25, EN 1092, JIS B2220 - **Testing & Inspection:** API 6D, EN 12266, API 598, BS 6755 **Sizes:** 2" – 36" (DN50 – DN900) **Pressure Ratings:** Class 150 – Class 2500 (PN16 – PN420) **Materials:** WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF3M, CF8M, and more Whether you're looking for detailed product specifications or ready to place an order, feel free to contact me directly or click "Inquiry Now" to fill out our information form. This will help you gather all the necessary details to confidently trade with suppliers. **Related Products:** Gate Valve | Ball Valve | Check Valve | Globe Valve | Butterfly Valve | Knife Gate Valve

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