3-way valve กรุนด์ฟอส
The purpose of a 3-way control valve is to shut off water flow in one pipe while opening water flow in another pipe, to mix water from two different pipes into one pipe, or to separate water from one pipe into two different pipes.
Whilst mitigation means working to reduce greenhouse gases, adaption contrasts by focussing the efforts on trying to control the environmental damage instead of trying to reduce it.
Air vent กรุนด์ฟอส
To prevent corrosion and problems with operation, heating and air-conditioning systems must be constructed so that air can be removed both when the system is filled and during subsequent operation.