Cast iron bushing
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Cast iron sleeve/DN200/Cast push-in flexible joint with T-type oil-resistant rubber gasket. Ductile iron per ISO2531-2009 – lined with cement mortar on the inside and coated with asphalt paint on the outside. Series A: Could someone please provide a picture of this? The suppliers all claim it’s impossible to select a suitable option, while the design institute replies that all the parameters are available
This description is indeed quite detailed, but it’s hard to make a choice without pictures. You can try this: 1. Search directly for “cast iron sleeve DN200 flexible joint” or “ISO2531-2009 Series A”; some suppliers’ product catalogs online may contain schematic diagrams of similar structures. 2. If the supplier says it’s not possible to choose, it might be because they are not familiar with this type that has a cement mortar lining and an asphalt paint coating on the outside. You can ask them if they have similar products that meet the ISO2531 standard, and then confirm whether the inner and outer coatings can be customized to your requirements. 3. If nothing else works, ask the design institute to provide a reference diagram, or contact the manufacturers with whom they have worked before; only a few manufacturers may be able to handle this type of special coating treatment. .
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