Sets out requirements for DN 6 to DN 100 one-piece and two-piece metal-bodied in-line ball valves for use in plumbing water supply systems, which includes, but is not limited to, 2 way and 3 way valves. The valves are designed for non-buried installations operating at temperatures up to 65 degrees Celsius or greater as specified by the manufacturer.
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Demonstration of compliance
1.3 Normative references
1.4 Definitions
1.5 Designation of size
1.6 Allowable pressures
2 Materials and components
2.1 General
2.2 Metallic materials
2.2.1 General
2.2.2 Copper
2.2.3 Copper alloy
2.2.4 Dezincification-resistant (DR) copper alloy
2.2.5 Stainless steel
2.2.6 Ductile iron
2.3 Plastics materials
2.3.1 General
2.3.2 UV resistance
2.3.3 Elastomeric materials
2.3.4 Coatings and linings
2.4 Effect on water
3 Design
3.1 General
3.2 Nominal size relationship
3.3 End connections
3.3.1 Threaded end connections
3.3.2 Flanged end connections
3.3.3 Other end connections
3.4 Operating mechanism
3.5 Finish and workmanship
3.5.1 General
3.5.2 Finish
4 Testing
4.1 Type tests
4.1.1 General
4.1.2 Leakage—Hydraulic strength test (Test A)
4.1.3 Operating effort
4.1.3.1 Opening and closing of valves (Test B)
4.1.3.2 Maximum instantaneous torque—Opening or closing (Test C)
4.1.4 Mechanical strength
4.1.4.1 Resistance to applied torque (Test D)
4.1.4.2 Resistance to applied bending moments (Test E)
