2.8.28 Slurry Disposal Line Valves

2.8.28               Slurry Disposal Line Valves

 

                        All valves shall be suitable for the service conditions i.e. flow, temperature and pressure under which these are required to operate and those performing similar duties shall be interchangeable, with one another unless, otherwise approved. All valves end connections shall be suitably protected to prevent damage and entry of dirt, till erected and commissioned.

 

                        Valves shall be provided with gear operator of proven quali­ty, reputed make and conforming to some internationally accepted standard, if the effort required to operate the valve exceeds 25 kgf.

 

                        All valves shall be fitted with indicators so that the valves opening can be readily determined.

 

                        The size of all valves shall be the same as that of parent pipe.

 

Material of construction shall be as follows:

a)         Body                Cast steel/Spheroidal ductile iron ASTM A 536

b)         Plate                 Alloy Cast iron/Hardened SS (400BHN)

 

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