According to the US Volleyball Association's official rules: Its inside pressure shall be 0.30 to 0.325 kg/cm2 (4.26 to 4.61 psi) (294.3 to 318.82 mbar or hPa).
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The youth volleyball ball for indoor use is 63 to 65-centimeters or 25 to 26-inches in circumference. They weigh 9.2 to 9.9 ounces, or 260-280-grams. Internal pressure of these balls are set at 4.3 psi or 0.30-kgf-per-centimeter-squared. The adult indoor volleyball ball is 65 to 67-centimeters or 25.5 to 26.5-inches in circumference. They weigh 9.2 to 9.9-ounces or 260 to 280-grams.
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After the fi rst release, the pressure in the ball is reduced by the fact that the ball once is stabbed with a hollow medical needle, after the second release, the pressure in the ball is reduced...
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Pressure Serving Drill No. 1. The team is told that they will earn one point for each ball that lands in the court. However, there is a 10-point deduction for each served missed. The team begins serving. Coach says the score loudly each time a ball is served in or out.
Volleyball characteristics; Circumference cm (inches) Mass grams Internal pressure kgf/cm² Standard indoor 65-67 (25.5-26.5) 260-280 (9.2-9.9) 0.3-0.325 (4.3-4.6) Youth indoor 63-65 (25-26) 260-280 (9.2-9.9) 0.3 (4.3) Beach 66-68 (26-27) 260-280 (9.2-9.9) 0.175-0.225 (2.5-3.2)
According to the FIVB official rules: A volleyballs inside pressure shall be 0.30 to 0.325 kg/cm2 (4.26 to 4.61 psi) (294.3 to 318.82 mbar or hPa).When infla...
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