BS ISO 24649:2022+A1:2023
$102.76
Agricultural irrigation equipment. Manually and hydraulically operated plastics valves
| Published By | Publication Date | Number of Pages |
| BSI | 2023 | 20 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 9 | 4 Technical characteristics 4.1 General 4.2 Dimensions 4.3 Connections to pipeline |
| 10 | 4.4 Handwheel or handle 4.5 Specific construction requirements for globe, oblique and angle valves 4.5.1 Threaded valve stems 4.5.2 Disc facing ring 4.6 Specific construction requirements for ball valves |
| 11 | 5 Mechanical and functional tests 5.1 General 5.2 Operating torque 5.2.1 General 5.2.2 Closing torque |
| 12 | 5.2.3 Resistance to increased torque 5.3 Pressure loss 5.4 Resistance of valve and valve material to internal hydrostatic pressure 5.5 Seat and stem sealing test 5.5.1 Seat test for manually operated valves 5.5.2 Seat test for hydraulically operated valves |
| 13 | 5.5.3 Stem sealing test 5.6 Valve performance at increased hydraulic pressure 5.7 Endurance testing 5.7.1 General 5.7.2 Initial leakage test |
| 14 | 5.7.3 Test procedure 6 Sampling and acceptance requirements 6.1 Type-tests 6.2 Acceptance tests |
| 15 | 7 Marking |
| 16 | Annex A (normative) Resistance of valve and valve material to hydrostatic pressure |
| 19 | Bibliography |
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