Introduction
This document provides installation, operation, and maintenance instructions for Hayward ball valves and three-way valves. It emphasizes the importance of following these guidelines to prevent serious injury and ensure proper functioning.

Product Guarantee and Responsibility
Hayward guarantees its products against defects in material and workmanship but does not assume responsibility for damages or injuries due to improper installation, misapplication, or chemical incompatibility. Users should verify compatibility and suitability for their specific applications.

Operating Conditions
Before installation, consult Hayward literature for pressure and temperature limitations. The maximum recommended fluid velocity is eight feet per second to avoid damage from the water hammer effect. Hayward products are designed for non-compressible liquids and should not be used with compressible fluids.

Installation Guidelines
Systems must be depressurized and drained before installation or maintenance. Consider temperature effects on piping systems to prevent mechanical loading on equipment. Avoid direct installation of metal pipes into plastic connections; use at least 10 pipe diameters of plastic pipe upstream and downstream of plastic valves.

Socket Connection
Socket connections should follow ASTM specifications. Proper cleaning, priming, and cementing techniques are essential for a secure connection. The document provides a detailed joint cure schedule based on temperature and pipe size.

Threaded Connection
Threaded connections should use Teflon tape for sealing. The tape should be applied with tension and the joint tightened using a strap wrench to avoid excessive stress.

Flanged Connection
Flange bolts should be tightened to compress the gasket without distorting the flanges. A recommended torque table is provided for different flange sizes.

Adjustment and Repair
Care must be taken when adjusting or repairing valves. The system must be depressurized, and proper safety data sheets should be consulted. The document outlines the procedure for adjusting the assembly nut and replacing o-rings and seals.

Valve Stem Torque
A table provides recommended torque values for rotating the valve ball 360 degrees for different valve sizes.

Illustrations
The document includes diagrams of manual and actuated valves, highlighting components such as the handle, o-rings, ball, stem, and assembly nut.