Overview

This technical catalog details the specifications, operation, and components of the Spring Check Valves CF series. These valves are designed for use in applications requiring pressure closure and no backflow movement, suitable for chemical and industrial uses.

Valve Description and Application

The CF Spring Check Valve is a non-return valve designed to prevent reverse flow. It is ideal for chemical and industrial applications where pressure closure is critical. The valve operates without any manual intervention, relying on spring tension to close the valve when flow reverses.

Standards and Compliance

• Manufactured according to technical standards and quality control procedures.
• Materials and dimensions comply with industry norms and are subject to change without prior notice for product improvement.
• Information provided is valid as of the revision date and updates will not be issued automatically.

Valve Operation and Pressure Ratings

The valve operates by pressure exerted by the fluid flow, which opens the valve against spring tension. When flow stops or reverses, the spring closes the valve to prevent backflow.

Maximum operating pressure and minimum pressure for valve opening are specified for different nominal diameters (DN):

Materials and Components

The valve components are made from materials suitable for chemical resistance and durability. Key components include:

• Spring: Made of polished 66 or stainless steel (37X).
• Body and Plunger: Manufactured from CF series materials with options for EPDM or FKM seals.
• Seals: Available in EPDM or FKM, suitable for various chemical environments.
• Other parts: Guide, support, and other internal components designed for reliable operation.

Seal Codes and Specifications

Seal materials are coded for identification:

• EPDM seals: Code EPDM
• FKM seals: Code FKM

Seal selection depends on the application environment and chemical compatibility.

Installation and Maintenance Recommendations

• Install valves vertically or horizontally as specified.
• Ensure proper alignment and avoid mechanical stress on the valve body.
• Regular inspection and maintenance recommended to ensure valve performance.
• Use only original spare parts and follow manufacturer guidelines.

Limitations and Warnings

• All dimensions and specifications are indicative and subject to change without notice.
• Information is provided "as is" without warranty of any kind.
• Users must verify compliance with local laws and regulations before installation.
• Unauthorized copying or reproduction of the catalog content is prohibited.

Contact Information

For further support and information, contact Polyslip Italia, located in Piacenza, Italy. Email: [email protected]