Flowserve Argus Ball Valves - Manual (Page 4)

Argus
Safety Information
4
Caution!
Use temperature measuring strips to check that the temperature does not rise beyond the
permissible limits (100°C). The strips must be fitted to the connection near the soft inserts (see
Chapter Installing the Welding Connection).
Caution!
The temperature measurement strip must be monitored constantly throughout the welding work
(see Chapter Installing the Welding Connection).
Caution!
If any change of colour is noticed, the welding work must be interrupted immediately and the weld
allowed cooling (see Chapter Installing the Welding Connection).
Caution!
Before start-up of the ball valve, the pipeline must be rinsed (see Chapter Installing the Welding
Connection).
Warning!
Before start-up of the ball valve a leak test must be performed (see Chapter Start-up).
Warning!
The ball valve must be set to the OPEN position in order to avoid any damage (see Chapter Start-
up).
Danger!
For safety reasons, the position of the wrench must clearly reflect the OPEN position of the ball
valve (see Chapter Start-up).
Danger!
Do not disassemble the valve under pressure. Before disassembly operate valve so that possible
pressure behind the ball may escape (see Chapter Maintenance).
Caution!
Do not loosen the fixing nuts (see Chapter Stuffing Box Assembly).
Danger!
The ball valve must be depressurized! To release encaptured pressure, turn ball.
Take care of any hazardous materials that might escape! Risk of explosion, fire and acid burn!
(see Chapter Stuffing Box Assembly)
Danger!
De-pressurize the ball valve by turning the ball at 90° before removing drain and ventilation plug
(see Chapter Drain Plug).
Danger!
Care must be taken when hazardous materials are involved!
Risk of explosion, fire and acid burn! (see Chapter Drain Plug)
Warning!
The plug may only be opened but not unscrewed by force (see Chapter Drain and Ventilation
Safety Plug).
Warning!
Keep away from the outlet! Risk of injury! See Chapter Drain and Ventilation Safety Plug.
Warning!
The medium is ejected sideways! See Chapter Drain and Ventilation Safety Plug.