Piping and Valves Specifications 1. Piping Materials: Material Internal pipe lining Externa l pipe lining Insulation Outer Jacket Seawater Pipework HDPE None none none none Chilled Water and hot water Carbon Steel None none Polyisocyanurate insulation Aluminium Cladding Chemical dosing pipe CPVC None none none none 2. Metallic Butterfly Valves Materials: The valve should be made of Aluminium ASTM S12A, Rilsan coated. The disc should be of ductile cast iron ASTM A 395 M:88, Rilsan Coated Collar of the valve has to be of EPDM and FPM Shaft of the valve has to be stainless steel 1.4021/AISI 420 The bearing bushes need to have a safety clip. The bushes shall be of bronze material in particular. Actuation can be manual as well as through the pneumatic or electric actuator. 3. Non-Metallic Butterfly Valves Materials (sea water application): Material will be HDPE All the valves will be PN-16 rated The valves will be operated through the actuators Control time for the actuators shall be 15 S/90 deg The control range has to be 90 deg <) Actuator must have integrated emergency manual override standard.

Piping and Valves Specifications

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Material Specification

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Piping and Valves Specifications

1. Piping Materials:

MaterialInternal pipe liningExternal pipe liningInsulationOuter Jacket

Seawater PipeworkHDPENonenonenonenone

Chilled Water and hot waterCarbon SteelNonenonePolyisocyanurate insulationAluminium Cladding

Chemical dosing pipeCPVCNonenonenonenone

2. Metallic Butterfly Valves Materials:

The valve should be made of Aluminium ASTM S12A, Rilsan coated. The disc should be of ductile cast iron ASTM A 395 M:88, Rilsan Coated Collar of the valve has to be of EPDM and FPM Shaft of the valve has to be stainless steel 1.4021/AISI 420 The bearing bushes need to have a safety clip. The bushes shall be of bronze material in particular. Actuation can be manual as well as through the pneumatic or electric actuator.

3. Non-Metallic Butterfly Valves Materials (sea water application):

Material will be HDPE All the valves will be PN-16 rated The valves will be operated through the actuators Control time for the actuators shall be 15 S/90 deg The control range has to be 90 deg