T/SEESA 003-2020 Active Group standards

T/SEESA 003-2020 Stop valve energy efficiency level and evaluation method

Publish Date: 2020-09-01 Implement Date: 2020-10-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/SEESA 003-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Information processing technology

ICS Name: Check valve

Publish Date: 2020-09-01

Implement Date: 2020-10-01

Scope

Scope: This standard specifies the basic requirements, energy efficiency grades, and test methods for check valves. This standard applies to swing check valves, guided quick-closing check valves, multi-functional pump control valves, and slow-closing check valves with a nominal size of DN50 to DN300 and a medium of water. Other types of check valves can be implemented as a reference. Main technical content: Check valves are divided into three energy efficiency grades, with Grade 1 representing the highest energy efficiency, Grade 2 as the energy-saving evaluation value, and Grade 3 as the basic energy efficiency value. Table 1 shows the energy efficiency grades of check valves (kPa) under a specified flow rate of 3.0 m/s for each type and nominal diameter. | Type | Nominal Diameter | Grade 1 | Grade 2 | Grade 3 | |:--- |:--- |:--- |:--- |:--- | | Swing check valves | DN50 | 14.88 | 17.51 | 19.26 | | DN65 | 12.41 | 14.60 | 16.06 | | DN80 | 10.91 | 12.83 | 14.11 | | DN100 | 9.43 | 11.09 | 12.20 | | DN125 | 9.09 | 10.69 | 11.76 | | DN150 | 7.50 | 8.82 | 9.70 | | DN200 | 6.49 | 7.63 | 8.39 | | DN250 | 5.91 | 6.95 | 7.65 | | DN300 | 5.23 | 6.15 | 6.77 | | Guided quick-closing check valves | DN50 | 34.6438.4942.34 | | DN65 | 26.2429.1532.07 | | DN80 | 24.4227.1329.84 | | DN100 | 17.5119.4521.40 | | DN125 | 11.8213.1314.44 | | DN150 | 10.6311.8112.99 | | DN200 | 7.077.858.64 | | DN250 | 6.876.638.39 | | DN300 | 5.616.236.85 | | Multi-functional pump control valves | DN50 | 85.9195.46105.01 | | DN65 | 82.4991.66100.83 | | DN80 | 70.4678.2986.12 | | DN100 | 68.8176.4684.11 | | DN125 | 60.6367.3774.11 | | DN150 | 55.7761.9768.17 | | DN200 | 51.5657.2963.02 | | DN250 | 41.9146.5751.23 | | Slow-closing check valves | DN50 | 72.3880.42 | | DN65 | 65.8973.21 | | DN80 | 59.3965.99 | | DN100 | 57.4763.86 | | DN125 | 57.4763.86 |