11. After all the water is out, close the drain valve and open the inlet valve coming from the boiler. 12. It's easy to lower the water level; simply open the drain valve and allow the excess water to escape. 13. It was determined that condensed water accumulated while the unit was in warm standby with the drain valve closed. 14. The expanded and condensed steam is drained from the steam cylinder through a drain valve ( " Entw�sserungsventil " ). 15. The Atrium Pneumostat chest drain valve combines a one way valve and a 30cc collection chamber to address this issue. 16. The valving arrangement of most dry-barrel hydrants is for the drain valve to be open at anything other than full operation. 17. The same company supplied fourteen S10-21 thrusters for the reaction control system, plus 17 pyrovalves and 13 fill and drain valves . 18. CAPTION : Opening the drain valve under the expansion tank after shutting off inlet valve enables you to drain the tank. 19. Drain the water until it runs clear, then close the drain valve , open the supply valve and turn on the furnace. 20. In order to maximise the efficiency of breathing and reduce drag underwater they are often short and wide bore, with or without a drain valve .
