ДСТУ EN 817:2022 Сантехнічні крани. Механічні змішувальні клапани (PN 10). Загальні технічні характеристики (EN 817:2008, IDT)

ДСТУ EN 817:2022
(EN 817:2008, IDT)

Сантехнічні крани. Механічні змішувальні клапани (PN 10). Загальні технічні характеристики

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

Contents

Foreword

Introduction

1 Scope

2 Normative references

3 Terms, definitions and designation

3.1 Terms and definitions

3.2 Designation

4 Marking and identification

4.1 Marking

4.2 Identification

5 Materials

5.1 Chemical and hygiene requirements

5.2 Exposed surface conditions

6 Dimensional characteristics

6.1 General remarks

6.2 Inlet dimensions

6.3 Outlet dimensions

6.4 Mounting dimensions

6.5 Special cases

6.6 Flexible hoses for shower outlets

6.7 Shower outlets

7 Sequence of testing

8 Leaktightness characteristics

8.1 General

8.2 Test methods

8.3 Leaktightness of the obturator and of the mixing valve upstream of the obturators with the obturator in the closed position

8.4 Leaktightness of the mixing valve downstream of the obturator with the obturator open

8.5 Leaktightness of manually operated diverter

8.6 Leaktightness and operation of diverter with automatic return

8.7 Leaktightness of the obturator: cross flow between hot water and cold water

9 Pressure resistance characteristics - mechanical performance under pressure

9.1 General

9.2 Principle

9.3 Apparatus

9.4 Mechanical behaviour upstream of the obturator - obturator in the closed position

9.5 Mechanical behaviour downstream of the obturator - obturator in the open position

10 Hydraulic characteristics

10.1 General

10.2 Initial settings

10.3 Principle

10.4 Apparatus

10.5 Procedure

10.6 Determination of flow rate

10.7 Determination of sensitivity

11 Mechanical strength characteristics - torsion test for operating mechanism

12 Mechanical endurance characteristics

13 Backflow protection

14 Acoustic characteristics

Annex A (informative) Apparatus

Annex B (informative) Pressure take-off tee

Bibliography