バルブ・サイズの選定技術資料 (MS-06-84;rev_3;ja-JP;技術情報)

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はすなかやぬま
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1 psig.0 MPa 1 ISA S71, Flow Equations for Sizing Control Valves 1 1 C v C v

2 2 3ISA C v p 1 p p 2 C v Instrument Society of America ISA 2 3 p q = N 1 C v p G f C v C v q p 1 p 2 p p1 p2 G f G g N 1 N 2 T 1 K C R F p = p 1 p 2 p 1 p 2 C v 6 7 C v G f q p 1 p 2

3 3 p 1 p 2 p 1 p 2 p 1 p 2 p 2 < 1/2p 1 q p 2 p 1 q p 2 > 1/2p 1 p 2 = 1/2p 1 q p 2 p 1 G g 2 p q = N 2 C v p 1 (1 ) 3p 1 T 1 p 1 p 2 C v p p 1 G g T 1 p 2 > 1/2p 1 q p 2 p 1 C v q = N 2 C v p 1 1 G g T 1 p 2 < 1/2p C v p p 1 G g T 1 p 1 p 2 q C v 11 C v

4 4 4 % % G f G g G 80 % 34 % 26 % 14 % 4 % 93 % 74 % 53 % 24 % % 5

5 std L/min kg/cm 2 C N q p T 1 N U.S. gal/min psia Imperial gal/min psia L/min bar ***** K L/min MPa L/min kg/cm 2 N std ft 3 /min psia R 6950 std L/min bar K ***** std L/min MPa K 40 C % 6 % ISA standards S71 S72 ISA 1. ISA S71, Flow Equations for Sizing Control Valves, Standards and Recommended Practices for Instrumentation and Control, th ed., Vol. 2, ISA S72, Control Valve Capacity Test Procedure, Standards and Recommended Practices for Instrumentation and Control, th ed., Vol. 2, C % L. Driskell, Control-Valve Selection and Sizing, ISA, J.W. Hutchinson, ISA Handbook of Control Valves, 2nd ed., ISA, Chemical Engineers Handbook, 4th ed., Robert H. Perry, Cecil H. Chilton, and Sidney D. Kirkpatrick, Ed., McGraw-Hill, New York. Instrument Engineers Handbook, revised ed., Béla G. Lipták and Kriszta Venczel, Ed., Chilton, Radnor, PA. Piping Handbook, 5th ed., Reno C. King, Ed., McGraw-Hill, New York. Standard Handbook for Mechanical Engineers, 7th ed., Theodore Baumeister and Lionel S. Marks, Ed., McGraw-Hill, New York.

6 U.S. gal/min C v = psi U.S. gal/min p 60 psi q 4 U.S. gal/min C v C v 0.50

7 7 L/min C v = MPa L/min p 3.00 MPa q 0.2 L/min C v C v

8 std ft /min3 8 std ft 3 /min psi 500 psi 0 psi psi psig psi psi p = 5 psi p 1 0 psig p 25 psi C v q 65 std ft 3 /min C v

9 9 std L/min MPa 0 MPa 2.50 MPa 6.0 MPa MPa 0.05 MPa 3.0 p MPa MPa std L/min p 1.0 MPa p 0. MPa C v q 4000 std L/min C v

10 std ft 3 /min C v C= v psig std ft /min p 1 0 psig q std ft 3 /min C v C v 0.

11 11 std L/min C v = MPa std L/min p MPa q 4000 std L/min C v C v

12 Swagelok TM Swagelok Company 1994, 1995, 00, 02 Swagelok Company July 02, R3 MS EJ L05E

減圧レギュレーターの流量曲線技術資料 (MS-06-114;rev_0;ja-JP;技術情報)

減圧レギュレーターの流量曲線技術資料 (MS-06-114;rev_0;ja-JP;技術情報) www.swagelok.co.jp SPE Swagelok KPR SPE Y X 1 2.75 MPa 1.72 MPa 3.44 MPa 15.1 MPa 2. 3.44 MPa 1.5 6.89 MPa 1. MPa.5 3.44 MPa 6.89 MPa 15.1 MPa 4 8 12 16 std /min 1 1 2.75 MPa 1.37 MPa 1 3 2 2.5 2.4.3.2

バルブ・サイズの選定 技術資料 (MS-06-84;rev_3;ja-JP;技術情報)

バルブ・サイズの選定技術資料 (MS-06-84;rev_3;ja-JP;技術情報)