Diaphragm seal with flange connection For the pulp and paper industry Model

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Transcription:

Pressure Diaphragm seal with flange connection For the pulp and paper industry Model 990.23 WIKA data sheet DS 99.34 for further approvals see page 6 Applications Highly viscous, hardening or particle-laden media Pulp manufacture Waste-paper processing Special features Rotatable retainer flange Versions with 90 pipe elbow and vibration damper Diaphragm seal with flange connection, model 990.23 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. The model 990.23 diaphragm seal has been developed for use in pulp manufacture or waste-paper processing applications. 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. Optionally, there are pipe elbows and vibration dampers available. 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 alternative, be coated. WIKA data sheet DS 99.34 04/2018 Page 1 of 6 Data sheets showing similar products: Diaphragm seal with flange connection; model 990.27; see data sheet DS 99.27

Specifications Model 990.23 Standard Option Pressure range Level of cleanliness of wetted parts 0... 0.6 to 0... 40 bar (0... 8.7 to 0... 580 psi) Oil and grease free per ASTM G93-03 level F WIKA standard (< 1,000 mg/m²) Origin of wetted parts International EU CH USA Extension length 6.5 mm (0.256 in) 17 mm (0.669 in) Oil and grease free per ASTM G93-03 level D and ISO 15001 (< 220 mg/m 2 ) Oil and grease free per ASTM G93-03 level C and ISO 15001 (< 66 mg/m²) Connection to the measuring instrument Axial weld-in connection Axial weld-in connection with G ½, G 1/4, ½ NPT or 1/4 NPT (female) Type of mounting Direct mounting 90 pipe elbow, rotatable through 180 90 pipe elbow, fixed 90 pipe elbow and vibration damper, rotatable through 180 90 pipe elbow and vibration damper, fixed Capillary Cooling element Retainer flange Stainless steel 316L - Accessories - Welding socket for integration into the process line, see data sheet AC 09.20 Perbunan sealing Material combinations Upper body of diaphragm seal Wetted parts Stainless steel 1.4404 (316L) Stainless steel 1.4404 / 1.4435 (316L), standard version 400 (752) Ceramic coating wikaramic PFA (perfluoroalkoxy) coating, FDA 260 (500) PFA (perfluoroalkoxy) coating, antistatic ECTFE coating 150 (302) Stainless steel 1.4435 (316L) Stainless steel 1.4435 (316L) 400 (752) Stainless steel 1.4541 (321) Stainless steel 1.4541 (321) Stainless steel 1.4571 (316Ti) Stainless steel 1.4571 (316Ti) Duplex 2205 (1.4462) Duplex 2205 (1.4462) 300 (572) Monel 400 (2.4360) Monel 400 (2.4360) 400 (752) Maximum permissible process temperature ¹) in C ( F) 1) The maximum permissible process temperature is limited by the joining method and by the system fill fluid. Further material combinations for special process temperatures on request WIKA data sheet DS 99.34 04/2018 Page 2 of 6

Example: Diaphragm seal model 990.23 Not included in delivery Sealing Process connection Pressure gauge Direct mounting Diaphragm seal d 4 Raised face D k Diaphragm (welded to diaphragm seal) Legend: D Outer diameter of diaphragm seal d 4 Sealing face diameter k Pitch circle diameter 14261380.01 WIKA data sheet DS 99.34 04/2018 Page 3 of 6

Standard version 1036904.03 Version with 90 pipe elbow NS 1036912.03 Dimensions in mm (in) NS H 63 (2.48) 120 (4.724) 100 (3.937) 140 (5.512) 160 (6.299) 170 (6.693) WIKA data sheet DS 99.34 04/2018 Page 4 of 6

Version with 90 pipe elbow and vibration damper (only for filled pressure gauges up to NS 100) Version with 90 pipe elbow and vibration damper, rotatable (only for filled pressure gauges up to NS 100) 1036920.03 14261220.01 Dimensions in mm (in) NS H 63 (2.48) 145 (5.709) 100 (3.937) 165 (6.496) 160 (6.299) 195 (7.677) NS NS Dimensions in mm (in) NS H 63 (2.48) 142 (5.591) 100 (3.937) 162 (6.378) 160 (6.299) 192 (7.559) WIKA data sheet DS 99.34 04/2018 Page 5 of 6

Approvals Logo Description Country EAC (option) Eurasian Economic Community Pressure equipment directive - CRN Safety (e.g. electr. safety, overpressure,...) - MTSCHS (option) Permission for commissioning Canada Kazakhstan 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 (nominal pressure) / Materials (upper body, sealing face, diaphragm, sealing) / Level of cleanliness of wetted parts / Origin of wetted parts / Design per NACE / Connection to the measuring instrument / Certificates / Retainer parts / Accessories Diaphragm seal system: Diaphragm seal model / Pressure measuring instrument model (per data sheet) / Mounting (direct mounting, cooling element, capillary) / Type of mounting (pipe elbow, vibration damper) / Materials (upper body, sealing face, diaphragm) / Min. and max. process temperature / Min. and max. ambient temperature / System fill fluid / Certificates / Height difference / Level of cleanliness of wetted parts / Origin of wetted parts / Accessories 04/2008 WIKA Alexander Wiegand SE & Co. KG, all rights reserved. The specifications given in this document represent the state of engineering at the time of publishing. We reserve the right to make modifications to the specifications and materials. 04/2018 EN WIKA data sheet DS 99.34 04/2018 Page 6 of 6 WIKA Alexander Wiegand SE & Co. KG Alexander-Wiegand-Straße 30 63911 Klingenberg/Germany Tel. +49 9372 132-0 Fax +49 9372 132-406 info@wika.de www.wika.de

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