Hayward Ball Valve TBH2100ASTV0000

3.2 Replacing End Connector O-Rings

Ensure safety precautions are followed

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

Periodically check valve for the following issues

Ensure the system is depressurized and drained before installing or maintaining the valve

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

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 rotating counter-clockwise

Check true union nuts and flange connections

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

Verify no distortion or excessive stress on the flanges

Confirm suitable washers are used between bolt head and flange, and nut and flange

Tighten bolts in alternating sequence

Refer to Table 1 for recommended torque