990.10
6Pages

Catalog excerpts

Diaphragm seal with threaded connection Threaded design Model 990.10 WIKA data sheet DS 99.01 for further approvals see page 6 Applications ■■ For aggressive, hot, corrosive, environmentally hazardous Special features ■■ Process connection with thread ■■ Version with internal diaphragm, diaphragm seal parts screwed together ■■ Large selection of process connections and materials ■■ Flushing connections optionally available Diaphragm seal with threaded connection, model 990.10 Description Diaphragm seals are used for the protection of pressure measuring instruments in applications with difficult media. In diaphragm seal systems, the diaphragm of the diaphragm seal effects the separation of the instrument and the medium. The pressure is transmitted to the measuring instrument via the system fill fluid which is inside the diaphragm seal system. For the implementation of demanding customer applications, there are a wide variety of designs, materials and system fill fluids available. For further technical information on diaphragm seals and diaphragm seal systems see IN 00.06 “Application, operating principle, designs”. WIKA data sheet DS 99.01 ∙ 05/2018 Data sheets showing similar products: Diaphragm seal with threaded connection; model 990.34; see data sheet DS 99.04 The model 990.10 diaphragm seal with threaded connection in threaded design is suitable for versatile application areas. A replacement of the lower body is possible without modifications on the diaphragm seal system. With this diaphragm seal, high pressure ranges up to 250 bar can be covered. Mounting of the diaphragm seal to the measuring instrument may be made via a direct connection, for high temperatures via a cooling element or via a flexible capillary. For the material selection WIKA offers a variety of solutions, in which the upper body of the diaphragm seal and the wetted parts can be made of identical or different materials. The wetted parts can, as an alternat

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Pressure range 0 ... 250 bar [0 ... 3,600 psi] or all other equivalent vacuum or combined pressure and vacuum ranges Level of cleanliness of wetted parts Oil and grease free per ASTM G93-03 level F WIKA standard (< 1,000 mg/m²) Oil and grease free per ASTM G93-03 level D and ISO 15001 (< 220 mg/m2) Origin of wetted parts Connection to the measuring instrument Axial adapter Axial adapter with G ½, G ¼, ½ NPT or ¼ NPT (female) Direct mounting ■■ Capillary ■■ Cooling element ■■ Metal C spring, silver-plated stainless steel, max. 400 °C ■■ Metal C spring, Inconel, max. 400 °C Flushing...

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WIKA data sheet DS 99.01 • 05/2018

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1) The maximum permissible process temperature is limited by the joining method and by the system fill fluid. 2) For G V2 and M 20 x 1.5 (male), max. 0 ... 100 bar Further material combinations for special process temperatures on request WIKA data sheet DS 99.01 • 05/2018

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8x with metal sealing to 250 bar Legend: Mb Diameter of diaphragm G Thread Female thread Threaded connections: 4x to 100 bar 8x with metal sealing to 250 bar Legend: Mb Diameter of diaphragm G Thread WIKA data sheet DS 99.01 • 05/2018

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Certificates (option) ■ 2.2 test report per EN 10204 (e.g. state-of-the-art manufacturing, material proof, indication accuracy for diaphragm seal systems) ■ 3.1 inspection certificate per EN 10204 (e.g. material proof for wetted metallic parts, indication accuracy for diaphragm seal systems) Approvals and certificates, see website Ordering information Diaphragm seal: Diaphragm seal model / Process connection (process connection standard, thread, nominal pressure rating) / Material (upper body, diaphragm, lower body) / Sealing / Retainer parts (retainer flange, screws) / Flushing connection...

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990.10 6Pages

Catalog excerpts

All WIKA Alexander Wiegand SE & Co. KG catalogs and technical brochures

990.10
6Pages