ДСТУ EN 60534-2-3:2022 Регулювальні клапани для промислових процесів. Частина 2-3. Пропускна здатність. Процедури випробувань (EN 60534-2-3:2016, IDT; IEC 60534-2-3:2015, IDT)



ДСТУ EN 60534-2-3:2022
(EN 60534-2-3:2016, IDT; IEC 60534-2-3:2015, IDT)

Регулювальні клапани для промислових процесів.
Частина 2-3. Пропускна здатність. Процедури
випробувань

 
   
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

CONTENTS

FOREWORD

1 Scope

2 Normative references

3 Terms and definitions

4 Symbols

5 Test system

5.1 Test specimen

5.2 Test section

5.3 Throttling valves

5.4 Flow measurement

5.5 Pressure taps

5.6 Pressure measurement

5.7 Temperature measurement

5.8 Valve travel

5.9 Installation of test specimen

6 Accuracy of tests

7 Test fluids

7.1 Incompressible fluids

7.2 Compressible fluids

8 Test procedure for incompressible fluids

8.1 Test procedure for flow coefficient C

8.2 Test procedure for liquid pressure recovery factor F_L and combined liquid pressure recovery factor and piping geometry factor F_LP

8.3 Test procedure for piping geometry factor F_P

8.4 Test procedure for liquid critical pressure ratio factor F_F

8.5 Test procedure for Reynolds number factor F_R for incompressible flow

8.6 Test procedure for valve style modifier F_D

9 Data evaluation procedure for incompressible fluids

9.1 Non-choked flow

9.2 Choked flow

9.3 Calculation of flow coefficient C

9.4 Calculation of liquid pressure recovery factor F_L and the combined liquid pressure recovery factor and piping geometry factor F_LP

9.5 Calculation of piping geometry factor F_P

9.6 Calculation of liquid critical pressure ratio factor F_F

9.7 Calculation of Reynolds number factor F_R

9.8 Calculation of valve style modifier F_d

10 Test procedure for compressible fluids

10.1 Test procedure for flow coefficient C

10.2 Test procedure for pressure differential ratio factors x_T and x_TP

10.3 Test procedure for piping geometry factor F_p

10.4 Test procedure for Reynolds number factor F_R

10.5 Test procedure for valve style modifier F_d

10.6 Test procedure for small flow trim

11 Data evaluation procedure for compressible fluids

11.1 Flow equation

11.2 Calculation of flow coefficient C

11.3 Calculation of pressure differential ratio factor x_T

11.4 Calculation of pressure differential ratio factor x_TP

11.5 Calculation of piping geometry factor F_p

11.6 Calculation of Reynolds number factor F_R for compressible fluids

11.7 Calculation of valve style modifier F_d

11.8 Calculation of flow coefficient C for small flow trim

Annex A (normative) Typical examples of test specimens showing appropriate pressure tap locations

Annex B (informative) Engineering data

Annex C (informative) Derivation of the valve style modifier, F_d

Annex D (informative) Laminar flow test discussion

Annex E (informative) Long form F_L test procedure

Annex F (informative) Calculation of F_P to help determine if pipe/valve port diameters are adequately matched

Bibliography