1.
Connect a hose to the drain valve and terminate it to an adequate drain.
用一条软管将排污阀连接到适当的排污口处。
2.
Open the water heater drain valve and the nearest hot water faucet.
打开热水器排污阀和附近的热水水龙头。
3.
Close the drain valve and refill the tank, and restore power.
关闭排污阀，重新向内胆注水，重新恢复电源。
4.
If the water heater is going to be shut down for an extended period, the drain valve should be left open.
如果打算长期关闭热水器，则排污阀应该保持开启状态。
5.
Open the water heater drain valve and allow all the water to drain from the tank. Flush the tank with water as needed to remove sediment.
打开热水器排污阀，排泄内胆内的所有水。如果需要，用水冲洗内胆，清除沉淀物。
6.
discharging valve
排出阀排气阀排水阀
7.
a safety, exhaust valve
安全阀、 排气阀.
8.
The relief valve should never be solidly piped into a drainage ditch, sewer or sump.
安全阀绝不能用坚硬的管道连接到排水沟、水管或污水坑里。
9.
pneumatic cylinder cock valve
风动汽缸排水阀阀门
10.
Once the pressure of the main network returns to normal, the valve flap of drainage outlet closes under pressure, first, second level check valves open, the main network return to supply water to branch pipeline.
一旦主管网压力恢复正常，排污口阀瓣受压关闭，一二级止回阀打开，主管路恢复向支管供水。
11.
After draining, close drain valve.
排泄完毕，关闭排泄阀。
12.
Watts Air Gap Drains are designed to collect water that is being discharged by the relief valve, due to minor check valve fouling and/ or line pressure fluctuations.
美国瓦茨气隙排放装置适用于收集由于第二止回阀污染和/管道压力波动而从安全阀排放出来的水。
13.
Air filtering pressure reducing valve, solenoid valve, valve location feedback device, valve gate locator, quick exhaust valce.
空气过滤器减压阀，电磁阀，阀位反馈装置，阀门定位器,快速排气阀。
14.
Stand clear of the regulator and valve outlet, while opening the valve.
开启阀门时，躲开调整器和阀门排气口。
15.
exhaust manifold heat control valve
排气歧管热量控制阀
16.
mechanically actuated exhaust valve mechanism
机械式排气阀传动机械
17.
sprinkler drain valve
喷水灭火装置排水阀
18.
drain pump overboard discharge valve
舱底水泵舷外排水阀