Specification for fire hydrant systems equipment: Part 1: Landing valves for wet risers
This Malaysian Standard specifies requirements for copper alloy globe valves generally complying with BS 5154 and diaphragm valves generally complying with BS 5156, both suitable for installation as landing valves on wet risers. The valves have screwed or flanged inlets and also delivery hose connections complying with *Bs 336. This standard covers valves of nominal pressure (PN) designations 1 500 kPa and 2 000 kPa and nominal inlet sizes DN 40 to DN 65 for flanged end sand 11/2 and 21/2 for screwed ends.
NOTE 1. Information which the purchaser is recommended to supply to the manufacturer is given in appendix B and does not form part of the specification.
