BSI 17/30350901 DC:2017 Edition
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BS EN 215. Thermostatic radiator valves. Requirements and test methods
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 43 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Contents Page |
| 6 | European foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 8 | Figure 1 — Schematic drawing of the assembly of a thermostatic valve with integral sensor |
| 9 | Figure 2 — Thermostatic element Figure 3 — Thermostatic valve with integral sensor |
| 10 | Figure 4 — Thermostatic valve with integral temperature selector with remote sensor Figure 5 — Thermostatic valve with the remote sensor incorporating the selector |
| 11 | Figure 6 — Thermostatic valve with remote sensor and remote selector Figure 7 — Example of valve integrated in a radiator |
| 12 | Figure 8 — Types of radiator valve connections |
| 13 | Figure 9 — Explanatory graph of characteristic curves |
| 15 | 4 Symbols and abbreviations Table 1 — Symbols and abbreviations |
| 16 | 5 Requirements 5.1 Dimensions 5.2 Mechanical properties 5.2.1 Resistance to pressure, leak-tightness of the valve body assembly 5.2.2 Leak-tightness of the stem seal 5.2.3 Resistance of the valve body assembly to a bending moment 5.2.4 Resistance of the temperature selector to a torque 5.2.5 Resistance of the temperature selector to a bending moment 5.2.6 Exchange of the stem seal 5.3 Operating characteristics 5.3.1 Nominal flow rate and flow rate at S-1 5.3.2 Characteristic flow rate at the minimum and maximum setting of the temperature selector 5.3.3 Characteristic flow rate for thermostatic valves having a pre-setting facility |
| 17 | 5.3.4 Sensor temperature at the minimum and maximum setting of the temperature selector 5.3.5 Hysteresis at the nominal flow rate 5.3.6 Differential pressure influence 5.3.7 Influence of the static pressure 5.3.8 Temperature difference between temperature point S and the closing and opening temperature respectively 5.3.9 Influence of ambient temperature on thermostatic valves with transmission elements 5.3.10 Water temperature effect 5.3.11 Response time 5.4 Endurance and temperature resistance 5.4.1 Mechanical endurance |
| 18 | 5.4.2 Thermal endurance 5.4.3 Temperature resistance 6 Test apparatus and methods 6.1 Test apparatus 6.1.1 Apparatus to obtain the hydraulic data |
| 19 | Figure 10 — Schematic layout of the test circuit to obtain the hydraulic data of the thermostatic valve and the thermostatic integrated valve |
| 20 | Table 2 — Dimensional pipe characteristics 6.1.2 Apparatus for testing the thermostatic valve and the integrated thermostatic valve in the water bath |
| 21 | Figure 11 — Schematic layout of the test apparatus for the water bath 6.1.3 Apparatus for testing the thermostatic valve in the air stream |
| 22 | Figure 12 — Schematic layout of the air test apparatus 6.2 Characteristic curves of thermostatic valves 6.2.1 Determination of the characteristic curves 6.2.1.1 General |
| 23 | 6.2.1.2 Opening curve at minimum setting of the temperature selector (curve no. 1) and at maximum setting (curve no. 2) 6.2.1.3 Opening curve at an intermediate setting of the temperature selector (curve no. 3) 6.2.1.4 Closing curve at an intermediate setting of the temperature selector (curve no. 4) 6.2.1.5 Opening curve for thermostatic valves with transmission elements in accordance with 3.2.2 to 3.2.4 at an intermediate setting of the temperature selector (curve no. 5) 6.2.1.6 Closing curve at an intermediate setting of the temperature selector and at a differential pressure greater than 10 kPa (0,1 bar) (curve no. 6) 6.2.1.7 Closing curve at an intermediate setting of the temperature selector and at a static pressure of 1000 kPa (10 bar) (curve no. 7) |
| 24 | Figure 13 — Characteristic curves of thermostatic valves 6.2.2 Plotting of the theoretical curve |
| 25 | Figure 14 — Plotting of the theoretical curve and of point S 6.3 Testing of mechanical properties 6.3.1 Resistance to pressure, leak-tightness of the valve body assembly |
| 26 | Figure 15 — Testing of pressure resistance of the valve body Table 3 — Tightening torques for the tailpiece nut 6.3.2 Leak-tightness of the valve closed mechanically by means of the protection cap. 6.3.3 Leak-tightness of the stem seal |
| 27 | Figure 16 — Testing of leak-tightness of the stem seal 6.3.4 Resistance of the valve body assembly to a bending moment Figure 17 — Testing of bending strength of the valve body assembly |
| 28 | Table 4 — Bending moments for testing thermostatic valves 6.3.5 Resistance of the temperature selector to a torque Figure 18 — Testing of resistance of the temperature selector to a torque |
| 29 | 6.3.6 Resistance of the temperature selector to a bending moment Figure 19 — Testing of resistance of the temperature selector to a bending moment 6.4 Testing of operating characteristics 6.4.1 Characteristic data 6.4.1.1 General 6.4.1.2 Nominal flow rate and flow rate at S-1 K 6.4.1.3 Characteristic flow rate for thermostatic valves and integrated thermostatic valves with pre-setting |
| 30 | 6.4.1.4 Maximum flow rate 6.4.1.5 Characteristic flow rate at the minimum and maximum setting 6.4.1.6 Sensor temperature at minimum and maximum setting of the temperature selector 6.4.1.7 Hysteresis at nominal flow rate 6.4.1.8 Differential pressure influence 6.4.1.9 Influence of the static pressure 6.4.1.10 Temperature difference between temperature point S and the closing and opening temperature respectively 6.4.1.11 Influence of ambient temperature on thermostatic valves with transmission elements 6.4.1.12 Water temperature influence |
| 31 | Figure 20 — Plotting of the water temperature effect on closing curve no. 4 6.4.1.13 Response time |
| 32 | Figure 21 — Plotting of response time 6.4.2 Endurance tests and temperature resistance test 6.4.2.1 Mechanical endurance test 6.4.2.2 Thermal endurance test |
| 33 | 6.4.2.3 Temperature resistance test 6.5 Test schedule |
| 34 | Table 5 — Test schedule |
| 35 | 7 Technical information to be published by the manufacturer |
| 36 | Figure 22 — Differential pressure Δp as a function of the flow rate qm |
| 37 | Annex A (normative) Thermostatic Radiator Valves – Dimensions and details on connection A.1 General A.2 Dimensions Figure A.1 —Straight and angle valves, series D and F Table A.1 — Series D |
| 38 | Table A.2 — Series F Figure A.2 — Straight and angle valves, series S Table A.3 — Series S |
| 39 | Figure A.3 — Straight and angle valves, series GB Table A.4 — Series GB. With Olive-type compression fitting A.3 Connection details A.4 Materials for body, tailpiece and nut |
| 40 | A.5 Designation A.6 Marking (This marking does not cover possible certification marking) A.7 CA Value Calculation |
| 41 | Annex B (informative) Degree of turbulence of the air current in a room |
| 42 | Annex C (informative) Test block for thermostatic integrated valves Figure C.1 — Test block for thermostatic integrated valves |
| 43 | Bibliography |
