BS 5351:1986

Foreword
Committees responsible
Section one. General
1 Scope
2 Definitions
3 Valve patterns
4 Nominal sizes
5 Pressure designation
6 Pressure/temperature ratings
7 Dimensions
Section two. Design and materials
8 Design
9 Operation
10 Materials
Section three. Performance
11 Pressure testing
12 Fire testing
13 Anti-static testing
Section four. Marking
14 General
Section five. Preparation for storage and transportation
15 General
16 Body ends
Appendices
A Information to be specified by purchaser
B Weld-end preparations
C Typical ball valve constructions
Tables
1 Nominal sizes of valves according to end fitting
2 Pressure designations of valves according to end
    fitting
3 Minimum pressure/temperature seat ratings for ball
    valves
4 Class 800 body ratings
5 Nominal pressure and class ratings and nominal size
6 End-to-end dimensions of butt-weld-end valves
7 Socket-weld-end details
8 Threaded-end details
9 Minimum ball and body port diameters PN 10, PN 16,
    Class 150, PN 25, PN 40, Class 300, Class 600 and
    Class 800
10 Shell thickness
11 Drain tapping size
12 Minimum force for wrenches and handwheels
13 Additional materials permitted for use in the
    manufacture of valves from bar-stock
14 Pressure test durations
15 Typical material symbols
Figures
1 Valve bore configurations
2 Typical variations of construction
3 Weld-end preparation
4 Typical bevel for wall thicknesses (t) 22 mm or less
    for pipeline applications
5 Two-piece split body or one-piece end entry body
6 One-piece body, end entry or top entry
7 One-piece body or two-piece split body, threaded or
    extended weld end
8 Split body sandwich construction

Valve seat and body pressure/temperature ratings, the design, materials, dimensions, operation, performance, testing and marking of straightway steel ball valves having specified wall thickness, antistatic feature and fire tested design. Valves of PN 10 to PN 40 and classes 150, 300, 600 and 800 with a variety of end fittings.