Overview of Valves and Twin Ferrule Fittings

This document section provides technical specifications and details for various types of valves and fittings, specifically focusing on twin ferrule fittings and check valves.

1. Twin Ferrule Fittings - Gap Gauge

The document mentions a gap gauge used for different sizes of twin ferrule fittings, with size references such as 1/4" (6 mm), 3/8", 1/2" (12 mm), and 10 mm. This gauge is essential for ensuring proper fitting assembly and leak prevention.

2. Check Valves (Rückschlagventil)

Check valves are detailed with dimensions and part numbers for various sizes and connection types. The valves are designed to allow flow in one direction and prevent backflow.

2.1 Dimensions and Part Numbers

• Sizes range from 1/4" to 1" for fractional tubes and 6 mm to 12 mm for metric tubes.
• Dimensions provided include length (L), height (H), and width (A).
• Part numbers are specified for each size and connection type, including fractional tube (CVz), metric tube (CVm), female ISO 7/1 thread (CVF G), female NPT thread (CVF N), male ISO 7/1 thread (CVM G), and male NPT thread (CVM N).

2.2 Connection Types

• Fractional tube connections (zölliges Rohr)
• Metric tube connections (metrisches Rohr)
• Female and male threads conforming to ISO 7/1 and NPT standards

3. Operating Parameters

• Maximum pressure (P max): 206 bar
• Maximum temperature (T max): 190 °C
• Additional pressure values listed: 0.07 bar, 0.70 bar, 1.70 bar (likely related to operating or test pressures)

4. Summary of Key Dimensions

The tables provide detailed dimensional data for each valve size and connection type, critical for installation and compatibility:

• Length (L) ranges approximately from 53 mm to 123 mm depending on size and connection.
• Height (H) ranges from about 14 mm to 38 mm.
• Width (A) ranges from about 15.9 mm to 34.9 mm.

5. Standards and Thread Types

The valves and fittings comply with international thread standards:

• ISO 7/1 for female and male threads
• NPT (National Pipe Thread) for female and male threads

Critical Information and Best Practices

• Ensure correct use of gap gauge for twin ferrule fittings to maintain sealing integrity.
• Select appropriate valve size and connection type based on application requirements.
• Observe maximum pressure and temperature ratings to avoid equipment failure.
• Verify thread standards compatibility for proper installation.