Overview

This technical catalog details the specifications, design, and application of a low maintenance membrane actuator valve controlled by air or inert gases. It covers various valve types including normally closed (NC), normally open (NO), and double acting (DA) control functions, all available in medium wetted parts made of high-grade plastic materials suitable for diverse applications.

Valve Description and Functionality

• The valve's chemical resistance depends on the type of fluid, temperature, pressure, and valve materials and seals.
• The membrane valve features a low maintenance membrane actuator controlled by air or inert gases.
• Available control functions include normally closed (NC), normally open (NO), and double acting (DA).
• Medium wetted parts are made of high-grade plastic materials selected for application suitability.
• The valve actuator is a membrane type with a base mounted on the valve body, designed for inert gases control.
• Optional accessories include positioners, limit switches, and solenoid valves to support valve operation.

Technical Standards and Compliance

• Manufactured according to standards such as ISO, DIN, and ANSI.
• Materials comply with chemical resistance and mechanical strength requirements.
• Standard handwheels and optional accessories are designed to support valve operation and control.

Materials and Construction

• Valve bodies and wetted parts are constructed from high-grade plastics and fluorinated materials to ensure chemical resistance and durability.
• Seals and membranes are selected based on fluid compatibility and operating conditions.
• Metal units, metric screws, and flanged connections are detailed for assembly and installation.

Dimensions and Weight

The catalog provides detailed dimensional tables for various valve codes and sizes (DN 15 to DN 50), including parameters such as diameter (d), length (L), height (H), and other relevant dimensions (H1, H2, H3, Z, B, etc.). Weight information in grams is also provided for each valve variant.

Performance Characteristics

• Maximum working pressure and pressure mass limits are specified for different valve sizes.
• Flow rate coefficients and flow efficiency data are included to assist in valve selection and sizing.
• Graphs illustrate maximum working pressure versus temperature and flow rate coefficients versus valve size.

Installation and Usage Recommendations

• Valve installation should consider the chemical resistance of materials relative to the fluid and operating conditions.
• Use of accessories such as positioners and limit switches is recommended for precise control and monitoring.
• Valve operation is supported by standard handwheels and optional actuators.
• All rights reserved by Polyslip Italia; reproduction or distribution of the catalog content without prior consent is prohibited.

Additional Information

Contact details for Polyslip Italia and support resources are provided. The catalog emphasizes that all descriptions and illustrations are for guidance only and subject to change without prior notice. The information is provided "as is" as of the revision date and does not imply any legal effect or warranty.