TECHNICAL SERVICE

TECHNICAL SERVICE

Provide convenient services for customers

Q & A



图片名称

Length unit 1 in (inch) = 25.4mm (mm) 1 ft (feet) = 0.3048 m (meters) Quality unit 1 lb (pound) = 0.4536 kg (kg) 1 OZ (ounce) = 28.3495 g (gram) Temperature unit ℃ = k -273.15 1 = ℃ x 1.8 + 32 Volume (volume) unit 1 litre (lit) = 10-3 m3 1 in3 (cubic inch) = 16.39 cm3 1 ft3 (cubic foot) = 28.32 dm3 1 US GAL (Micharine) = 3.79 DM3 1 uk gal (Micharine) = 4.55 dm3 1 US FL OZ (beauty liquid ounce) = 29.57 cm3 1 UK FL OZ (British liquid ounce) = 28.41 CM3 1 dm3 (cubic meter) = 0.0353 IN3 Force unit 1 kgf (kgl) = 9.81 n 1 lbf (pound force) = 4.45 n Torque unit 1 kg • m (kg • meter) = 9.807n • m (Niu • meter) 1 kg • m (kg • meter) = 87.11lb • in (pound • inch) 1 in • lb = 0.113n • m 1 ft • LB (Fifty • pound) = 1.356 n • m Stress unit 1 psi (pound force/square inch) = 6895 PA (Pa) 1 BAR (Baz) = 105 PA 1 BAR = 14.5 PSI   Flow unit QN value = standard flow (L/min), that is, the flow measured by P1 = 0.6MPa, △ P = 0.1MPa of the valve. KV value = 20 ℃ clear water to drop △ P = 0.1 mpa to measure the flow (m3/h) when valve. CV value = 60 清 clear water to drop △ P = 1 PSI (0.07bar) The flow measured by valve (US GAL/MIN) S value = effective cross -sectional area (MM2), there is a thin -walled flow hole with an area of ​​S. When the throwing hole is the same as the measured component, when the air flow is equal The S -value S -value is an effective cross -sectional area of ​​the measured components. Calculating formula: S = qn x 0.018 S = KV x 19.84 KV = QN/100 CV = QN/984

< 12 >