Nachi variable vane pump : Pressure booster water pumps : Spa pumps and more.
Nachi Variable Vane Pump
- A rotary vane pump is a positive-displacement pump that consists of vanes mounted to a rotor that rotates inside of a cavity. In some cases these vanes can be variable length and/or tensioned to maintain contact with the walls as the pump rotates. It was invented by Charles C.
- Vane pumps are used for some engine oil and hydraulic pumps. Generation characteristics are superior to gear pumps but wear characteristics and expense is worse. Vane pumps use two or more spring loaded vanes spinning within an eccentric enclosed space to generate flow.
- a positive displacement pump. Vane pumps are used successfully in a wide variety of applications (see below). Because of vane strength and the absence of metal-to-metal contact, vane pumps are ideally suited for low-viscosity, non lubricating liquids up to 2,200 cSt / 10,000 SSU.
- something that is likely to vary; something that is subject to variation; "the weather is one variable to be considered"
- Not consistent or having a fixed pattern; liable to change
- (of a quantity) Able to assume different numerical values
- (of a wind) Tending to change direction
- liable to or capable of change; "rainfall in the tropics is notoriously variable"; "variable winds"; "variable expenses"
- a quantity that can assume any of a set of values
- Nachi or nache is a Mapuche food from Chile, prepared with fresh animal blood and dressings.
Variable Oystercatcher
variable oystercatcher (Haematopus unicolor) is a species of wader “Variable" refers to the frontal plumage, which ranges from pied through mottled to all black. Blacker birds are more common in the south. All Stewart Island variable oystercatchers are black. They have pink legs, an orange eye ring, and red beaks. They are often seen in pairs on the coast all around New Zealand. During breeding, the pair will defend their territory, sometimes aggressively. They feed on molluscs, crabs, and marine worms. After heavy rain, they sometime go inland in search of earthworms. They can open a shellfish by either hammering a hole in it or getting the bill between the two shells and twisting them apart. They usually lay 2-3 eggs but they can lay up to five. The eggs are typically stone coloured with small brown patches all over. The bird lives up to about 27 years
Variable Wheatear-??? ???? ?? ???????
Variable wheatear aka eastern pied wheatear (Oenanthe picata)
This shot is the first record for this in North QATAR -AL-SHAMAL area exactly at AL-RUWAIS on 27-11-2008 ,very rare bird ...
No more records for this bird..!!
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