'4273 'O' rings and washers'. Black coloured, injection moulded EPDM 'O' rings and washers. Shore hardness 70. The 'O' rings have an in-radius size of 1.31mm. The washers have an in-radius size of 2.00mm. For use with water up to 85°C.
'4270' components. Black coloured, injection moulded EPDM rubber components with a shore hardness of 70. ‘O’ rings (in-radius 1.31mm), washers (in-radius 1.05mm) & membranes (in-radius 1.75mm) made in Italy. ‘O’ rings (in-radius 1.31mm) & washers (in-radius 1.05mm) made in China. In May 2024 ‘shaped seals’ (in-radius of 1.8mm) made in Italy, were added to the approval. In November 2024, lip seals (in-radius of 0.7mm) made in Italy, were added to the approval. For use with water up to 85°C.
‘4280’ black coloured injection moulded EPDM rubber components. Shore hardness 80. '4280 Membrane' has a tested in-radius size of 1.75mm. ‘4280 ’O’ rings’ have a tested in-radius size of 1.31mm. ‘4280 washers’ have a tested in-radius size of 1.05mm. All components are for use with water up to 85°C.
'4360 'O' rings, washers, membranes and lip seals'. Black coloured, injection moulded EPDM components with a shore hardness of 60. The ‘O’ rings have a tested in-radius size of 1.31mm. The washers have a tested in-radius size of 1.05mm. The membranes have a tested in-radius size of 1.55mm. The lip seals have a tested in-radius size of 0.40mm. For use with water up to 85°C.
'Art-Coat'. Factory applied, colourless (transparent) PTFE based surface treatment coating. Apply as per manufacturer's instructions 'revision 3' dated 16-03-2020. Cure for 45 minutes@55-60°C. For use with water up to 85°C. This material is only approved for the curing conditions that appear on the approval. If the cure conditions are varied from those specified on the approval then the material is not covered by the scope of the approval.
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