MK Bath & Kitchen Gallery
18-1, Jalan Equine 1B,
Taman Equine,
43300 Seri Kembangan,
Selangor, Malaysia.
+6017-603 2661
+603-9545 3778
0176032661
Branch Office
5, Jalan Orkid 1G/2,
Seksyen BS1,
Bandar Bukit Sentosa,
48300 Rawang,
Selangor, Malaysia.

Hose Bib Tap

Water taps have adjustable flow: gate valves are more progressive; ball valves more coarse, typically used in on-off applications. Turning a valve knob or lever sets adjusts flow by varying the aperture of the control device in the valve assembly. The result when opened in any degree is a choked flow. Its rate is independent of the viscosity or temperature of the fluid or gas in the pipe, and depends only weakly on the supply pressure, so that flow rate is stable at a given setting. At intermediate flow settings the pressure at the valve restriction drops nearly to zero from the Venturi effect; in water taps, this causes the water to boil momentarily at room temperature as it passes through the restriction. Bubbles of cool water vapor form and collapse at the restriction, causing the familiar hissing sound. At very low flow settings, the viscosity of the water becomes important and the pressure drop (and hissing noise) vanish; at full flow settings, parasitic drag in the pipes becomes important and the water again becomes quiet.

A13412 (304)

A13408

QT-209

QT-208

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F30-19

F30-13

A13412

A13415

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A13414

A13413

A13418

 
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