Technical Catalog Overview

This document is a technical catalog for the 39&-8 valve series, designed for applications involving swimming pools, light water treatment, and non-critical chemical processes. The valves are suitable for use in PVC piping systems and comply with relevant standards.

Key Features and Specifications

• Material: Double-sided blocked ball made of special PVC with low friction coating.
• Valve Type: Full section flow with nominal bore sizes ranging from DN 15 to DN 50.
• Pressure Ratings: Maximum operating pressure is specified according to the valve size and standards.
• Flow Characteristics: The valves provide full flow with minimal pressure loss.
• Installation: Suitable for installation and removal under pressure; designed for easy maintenance.

Standards and Norms

The valves conform to various international standards including:

• ISO standards for dimensions and pressure ratings.
• DIN and ASTM standards for materials and testing.
• Specific standards for PVC piping and fittings.

Valve Components

The valve assembly includes the following components:

• Handle and manual operator
• Ball with special coating
• Seats made of mechanical or elastomeric materials
• Body and end connectors
• Springs and locking screws

Dimensions and Weights

The catalog provides detailed dimensional data for each valve size, including nominal diameter (DN), length (L), height (H1, H2), and other critical dimensions (Z, A, C, E). Weight information is also provided for each size and configuration.

Operating and Maintenance Instructions

The valves are designed for reliable operation with minimal maintenance. The document emphasizes:

• Proper installation to avoid leaks and ensure longevity.
• Use of original spare parts only.
• Handling precautions to prevent damage to the valve components.
• Recommendations for pressure testing and operational limits.

Pressure Loss and Flow Rate Charts

Graphs included in the catalog illustrate the pressure loss across the valve at various flow rates for different nominal diameters (DN 15 to DN 50). These charts assist in selecting the appropriate valve size for specific flow requirements.

Additional Information

Contact details and support information for the manufacturer are provided, including website and email. The document stresses that all descriptions and illustrations are for guidance only and subject to change without prior notice.