Document Overview:
This document appears to be a technical reference sheet or specification related to the AVR Vacuum Generator produced by Air-Vac Engineering Company, Inc., located in Seymour, CT. The document includes dimensional references, port specifications, and proprietary information notices.

1. Dimensional References

The document lists several numerical values labeled as "Ref." which likely correspond to physical dimensions or reference measurements for the vacuum generator components. These include values such as 0.63, 2.38, 0.56, 0.38, 0.75, and 0.62. These dimensions are critical for installation, integration, or manufacturing processes.

2. Port Specifications

• Air Supply Port: 1/8 NPTM (National Pipe Thread Male)
• Vacuum Port: 1/8 NPTF (National Pipe Thread Female)
• Exhaust Port: 1/8 NPSF (National Pipe Straight Female)

These specifications define the types and sizes of connections for air supply, vacuum output, and exhaust, which are essential for proper system interfacing.

3. Proprietary Information Notice

The document contains a clear statement that the information is proprietary to Air-Vac Engineering and cannot be disclosed without written approval. This indicates confidentiality and restricted use of the technical data.

4. Company Information

Air-Vac Engineering Company, Inc.
Seymour, CT
Website: www.airvacpumps.com

Summary

This technical document provides essential dimensional and port connection details for the AVR Vacuum Generator. It is intended for use by qualified personnel and is protected under proprietary information guidelines. The key parameters include specific thread types and sizes for air supply, vacuum, and exhaust ports, as well as reference dimensions likely used for design or installation.