ДСТУ EN 215:2022 Термостатические радиаторные клапаны. Требования и методы испытаний (EN 215:2019, IDT)

ДСТУ EN 215:2022
(EN 215:2019, IDT)

Термостатичні радіаторні клапани. Вимоги та методи випробувань

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

Contents

European foreword

1 Scope

2 Normative references

3 Terms and definitions

4 Symbols and abbreviations

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 K

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

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

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

6.1.2 Apparatus for testing the thermostatic valve and the integrated thermostatic valve in the water bath

6.1.3 Apparatus for testing the thermostatic valve in the air stream

6.2 Characteristic curves of thermostatic valves

6.2.1 Determination of the characteristic curves

6.2.2 Plotting of the theoretical curve

6.3 Testing of mechanical properties

6.3.1 Resistance to pressure, leak-tightness of the valve body assembly

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

6.3.4 Resistance of the valve body assembly to a bending moment

6.3.5 Resistance of the temperature selector to a torque

6.3.6 Resistance of the temperature selector to a bending moment

6.4 Testing of operating characteristics

6.4.1 Characteristic data

6.4.2 Endurance tests and temperature resistance test

6.5 Test schedule

7 Technical information to be published by the manufacturer

Annex A (normative) Thermostatic Radiator Valves — Dimensions and details on connection

A.1 General

A.2 Dimensions

A.3 Connection details

A.4 Materials for body, tailpiece and nut

A.5 Designation

A.6 Marking

A.7 Calculation of Control Accuracy — CA value

Annex B (informative) Degree of turbulence of the air current in a room

Annex C (informative) Test block for thermostatic integrated valves

Bibliography