Hayward Ball Valve TBH1200ASTV0000

Operate valve to 45° (i.e. ½ open) position

Slowly purge air from system as line fills with liquid

Check for leaks around valve handle, stem, and end connections

Check for proper valve operation

If any leaks are present, or valve does not perform properly, refer to troubleshooting guide

Depressurize and drain system prior to performing any maintenance

Ensure system is depressurized and drained prior to installing valve or performing maintenance

Check true union nuts and/or flange connections

Ensure flange bolts are tight enough to compress the gasket and make a good seal

Verify that suitable washers are used between the bolt head and flange and the nut and flange

Tighten bolts in alternating sequence

Refer to Table 1 for recommended torque

Depressurize and drain the system

Inspect valve for external damage

Ensure system is depressurized and drained before installing or maintaining valve

3.3 Replacing Internal Seats and Seals

Ensure safety precautions are followed

Depressurize and drain system with valve handle in partially open position (45°)

Remove assembly nuts from valve body by rotating counterclockwise

Rotate handle to fully closed position

Remove seal retainer from body by engaging hex on seal retainer and rotating counter-clockwise

Remove ball from body by reaching inside closed end bore of body and pushing ball towards open end of valve body

3.2 Replacing End Connector O-Rings

Depressurize and drain system with valve handle in partially open position (i.e. handle at 45° position).

Remove assembly nuts from valve body by rotating counterclockwise.

Using a plastic pick, carefully remove the old seals.

Clean o-ring grooves with a soft brush or cloth.

Install new o-rings by gently pressing o-ring into groove until o-ring is fully seated.

Install valve cartridge between end connectors, match nuts to body threads and turn nut clockwise to thread onto body.