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Photographic developers are chemical solutions used in developing photographic film and paper. They reduce the light-sensitive silver halide crystals in the film or paper to metallic silver to produce a visible image. Different developers are used for different types of film and paper and can affect the resulting image characteristics such as contrast, tone and grain. Photographic developers are usually a mixture of chemicals such as hydroquinone, methol and sodium sulfite.
Filter
Fibre-rubber plates
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Teflon plates
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Graphite plates
Excellent suitable
Excellent suitable
Excellent suitable
Excellent suitable
Excellent suitable
Rubber plates
Excellent suitable
Good good
Good good
Excellent suitable
Excellent suitable
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Excellent suitable
Excellent suitable
All technical data is based on our measurements and experience and is for guidance only. The parameters listed interact if they occur together and must be consulted in limiting cases. The manufacturer is not liable for misinterpretation of the given data and incorrect application of seals
Reinforced with bonded smooth Ni foil 0.013 mm thick (material: 2.4066). For low and medium pressures.
Reinforced with 0.1 mm thick perforated reed plate (material: AISI 316). For medium and higher pressures.
Reinforced with 0,05 mm thick stainless steel foil (material: AISI 316). For low and medium pressures.
Reinforced with expanded stainless steel sheet 0.1 mm thick (material: AISI 316L, 700 g/m²). Ideal seal for large pressure changes.
Multilayered sealing material made of expanded graphite reinforced with a larger number of inserts without the use of adhesives. Suitable for higher pressures and temperatures.
It is used in refrigeration and applications where the seal is exposed to external weathering.
FKM has excellent chemical and heat resistance. It is used in mineral oil and grease based applications.
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