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GEMÜ D20 Manually operated diaphragm valve

GEMÜ D20 Manually operated diaphragm valve
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GEMÜ D20 Manually operated diaphragm valve

Product catalog summary
Overview: The GEMÜ D20 is a manually operated diaphragm valve designed for sterile applications, featuring a sealed handwheel suitable for 3-A® applications. It is low-maintenance due to its firmly chambered diaphragm and offers high Kv values due to its flow-optimized valve body. It is suitable for hygienic and aseptic applications, being CIP/SIP capable and autoclavable.
Technical Specifications:
  • Media Temperature: -10 to 100 °C
  • Sterilization Temperature: Max. 150 °C
  • Ambient Temperature: -10 to 80 °C
  • Operating Pressure: 0 to 10 bar
  • Nominal Sizes: DN 10 to 25
  • Body Configurations: 2/2-way bodies
  • Connection Types: Clamp, Spigot
  • Connection Standards: ASME, DIN, EN, ISO
  • Body Materials: Various stainless steel grades
  • Diaphragm Materials: PTFE/EPDM
  • Conformities: FDA, EC No. 1935/2004, EU No. 10/2011, USP
Construction Details: The valve consists of several components including a stainless steel handwheel, a PTFE/EPDM diaphragm, and a stainless steel valve body. The diaphragm hermetically seals the actuator from the working medium.
GEMÜ CONEXO: This system enhances process reliability through RFID-equipped valve components and an IT infrastructure. It facilitates installation qualification and maintenance processes, providing transparency and documentation through the CONEXO app and portal.
Order Data: The document provides detailed order codes for various configurations, including type, connection, body configuration, valve body material, diaphragm material, and more.
Technical Data: The valve is suitable for corrosive, inert, gaseous, and liquid media. It can handle a vacuum of up to 70 mbar and has a pressure rating of PN 16. Leakage rate conforms to EN 12266-1 standards.
Dimensions: Detailed dimensions are provided for actuator and body configurations, including spigot and clamp types, with specific measurements for different connection standards and materials.
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Catalog excerpts

GEMÜ D20 Manually operated diaphragm valve-1

Features • Sealed handwheel for 3-A®applications • Low-maintenance due to the firmly chambered diaphragm • Scaled visual display • Very high Kv values due to flow-optimised valve body • Suitable for use in hygienic and aseptic applications (CIP/SIP capable and autoclavable) The manually operated GEMU D20 diaphragm valve is designed for use in sterile applications. The diaphragm hermetically seals the actuator off from the working medium. Thanks to its sealed handwheel, the GEMU D20 is particularly suitable for 3-A®applic-ations. All actuator parts (with the exception of the sealing and design elements) are made of stainless steel. • Body configurations: 2/2-way bodies • Connection types: Clamp l Spigot • Connection standards: ASME l DIN l EN l ISO • Body materials: 1.4435 (316L), block material l 1.4435 (BN2), block material l 1.4435 (BN2), forged material l 1.4435 (F316L), forging material • Diaphragm materials: PTFE/EPDM • Conformities: FDA l Regulation (EC) No. 1935/2004 l Regulation (EU) No. 10/2011 l USP Technical data depends on the respective configuration

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GEMÜ D20 Manually operated diaphragm valve-2

Product description

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GEMÜ D20 Manually operated diaphragm valve-3

Product description GEMÜ CONEXO The interaction of valve components that are equipped with RFID chips and an associated IT infrastructure actively increase process reliability. The diaphragm is read out using an RFID reader, the CONEXO pen. The CONEXO app, which can be installed on mobile devices, not only facilitates and improves the “installation qualification” process, but also makes the maintenance process much more transparent and easier to document. The app actively guides the maintenance technician through the maintenance schedule and directly provides them with all the information assigned...

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Order data The order data provide an overview of standard configurations. Please check the availability before ordering. Other configurations available on request.

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Technical data Technical data Medium Working medium: Media temperature: Ambient temperature: Sterilization temperature: Corrosive, inert, gaseous and liquid media which have no negative impact on the physical and chemical properties of the body and diaphragm material. Vacuum: Pressure rating: Leakage rate: All pressures are gauge pressures. Operating pressure values were determined with static operating pressure applied on one side of a closed valve. Sealing at the valve seat and atmospheric sealing is ensured for the given values. Can be used up to a vacuum of 70 mbar (absolute)

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GEMÜ D20 Manually operated diaphragm valve-7

Technical data Diaphragm size Product conformity Pressure Equipment Directive: Mechanical dataWeight: MG = diaphragm size, Kv values in m3/h Kv values determined in accordance with EN 60534, inlet pressure 5 bar, Ap 1 bar, stainless steel valve body and two-piece PTFE/EPDM diaphragm. The Kv values for other product configurations (e.g. other diaphragm or body materials) may differ. In general, all diaphragms are subject to the influences of pressure, temperature and process parameters, as a result of which the Kv values deviate beyond the tolerance limit of the standard. The Kv value curve (Kv...

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Technical data Vertical line: Reference line for hash mark Reference line for the angle of rotation

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GEMÜ D20 Manually operated diaphragm valve-10

Connection type spigot DIN/EN/ISO/ASME (codes 17, 59, 60) ^, forged material (code 40, 42) 2) Pipe standard EN 10357 series A/DIN 11866 series A ASME BPE/DIN 11866 series C ISO 1127/EN 10357 series C/DIN 11866 series B Dimensions in mm MG = diaphragm size Code 17: Spigot EN 10357 series A/DIN 11866 series A, formerly DIN 11850 series 2 Code 59: Spigot ASME BPE/DIN EN 10357 series C (from 2022 edition)/DIN 11866 series C Code 60: Spigot ISO 1127/DIN EN 10357 series C (2014 edition)/DIN 11866 series B 2) Valve body material Code 40: 1.4435 (F316L), forged body Code 42: 1.4435 (bN2), forged body,...

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GEMÜ D20 Manually operated diaphragm valve-11

Dimensions in mm MG = diaphragm size Code 80: Clamp ASME BPE, face-to-face dimension FTF ASME BPE, length only for body configurations D & F Code 88: Clamp ASME BPE, for pipe ASME BPE, face-to-face dimension FTF EN 558 series 7, length only for body configurations D & F Code 8P: Clamp DIN 32676 series C, face-to-face dimension FTF ASME BPE, length only for body configurations D & F Code 8T: Clamp DIN 32676 series C, face-to-face dimension FTF EN 558 series 7, length only for body configurations D & F 2) Valve body material Code 40: 1.4435 (F316L), forged body Code 42: 1.4435 (bN2), forged body,...

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GEMÜ D20 Manually operated diaphragm valve-12

Dimensions in mm MG = diaphragm size Code 8A: Clamp DIN 32676 series A, face-to-face dimension FTF acc. to EN 558 series 7, length only for body configuration D 2) Valve body material Code 40: 1.4435 (F316L), forged body Code 42: 1.4435 (bN2), forged body, A Fe < 0.5%

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GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG Gert-Müller-Platz 1, 74635 Kupferzell, Germany Phone +49 (0) 7940 1230 · [email protected] www.gemu-group.co

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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