This specification has a higher corrosion allowance than the non-food products specification. Also the gaskets in this spec are asbestos based because condensates should not find themselves in the sugar process stream.
Size Range | Specification |
Pipe | |
---|---|
15-150 | BS1387 Medium plain ends |
200-300 | BS3601 Gr 430 ERW 6mm wall thickness |
Fittings | |
15-40 | BS3799 3000lb - Material ASTM A105 |
50-300 | BS1640 Pt 3.1 - Material ASTM A234 Gr WPB - standard weight |
Flanges | |
50-300 | BS4504 Pt3; PN10; code 101 plate flange for welding; type B raised face- Material BS1051-151 Gr 360 |
Gaskets | |
50-300 | BS1832 Inside Bolt Circle (IBC) for type B raised face flange facings; 1.5mm thick compressed asbestos fibre (CAF) PN10 |
Bolting | |
Black cabon steel to ISO 272; bolts Gr 4.8; nuts Gr 4; incl washer | |
Valves | |
15-50 | Ball valve; carbon steel body; full bore; three piece; 316 stainless steel ball; PTFE seat; socket weld ends; to BS5159 PN10 |
80-300 | Butterfly valve; cast iron body; 316 disc; metal reinforced PTFE liner; to BS5155 PN10; to fit between flanges to BS4504 PN10 |
15-40 | Check valve; carbon steel body; piston type; socket weld ends to BS5160 PN10 |
50-300 | Check valve; carbon steel body; dual carbon steel discs; face to face dimension as per BS5155, PN10; to fit between flanges to BS4504 PN10 |