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GEMÜ Gebrüder Müller Apparatebau GmbH & Co. KG
GEMÜ 655 Manually operated full bore diaphragm valve

GEMÜ 655 Manually operated full bore diaphragm valve

Product catalog summary

Overview: The GEMÜ 655 is a manually operated diaphragm valve designed for high mechanical stability and high flow rates, featuring a straight-through flow design. It can be upgraded with a pneumatic actuator.

Specifications:

Media Temperature: 0 to 100 °C
Ambient Temperature: 0 to 60 °C
Operating Pressure: 0 to 10 bar
Nominal Sizes: DN 25 to 300
Body Configurations: 2/2-way body
Connection Types: Flange
Connection Standards: ANSI, EN, ISO
Body Materials: EN-GJL-250, EN-GJS-400-18-LT, EN-GJS-500-7
Body Lining: Butyl, Hard rubber, Soft rubber
Diaphragm Materials: CR, EPDM, IIR, NBR, NR
Conformities: CRN, EAC

Construction: The valve includes a cast iron actuator, a diaphragm in various materials, and a valve body that can be lined with different materials.

Technical Data:

Working Medium: Suitable for corrosive, inert, gaseous, and liquid media.
Pressure: Maximum of 10 bar for smaller sizes, decreasing for larger sizes.
Kv Values: Range from 35 m³/h for DN 25 to 5180 m³/h for DN 300.

Product Compliance: Complies with the Pressure Equipment Directive 2014/68/EU and EAC TR CU 010/2011.

Mechanical Data: Actuator weight varies from 2 kg to 222 kg depending on size. Valve body weight also varies.

Dimensions: Detailed dimensions are provided for various connection types and materials, including flange dimensions according to EN and ANSI standards.

Order Data: Includes order codes for different configurations such as type, nominal size, body configuration, connection type, valve body material, diaphragm material, control function, and actuator version.

Technical Document Summary:
Specifications:

Dimensions for diaphragm sizes from 1 1/2” to 12” in millimeters, including diameter, height, and bolt specifications.
Diaphragm pin thread follows the Whitworth standard.

Procedures: No specific procedures outlined.

Standards: Diaphragm pin "W" thread adheres to the Whitworth standard.

Recommendations: No explicit recommendations provided.

Key Data from Tables:

Lists diaphragm sizes, dimensions, and bolt specifications for various models, including diameter, height, and bolt size.

Contact Information:

GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG, Fritz-Müller-Straße 6-8, 74653 Ingelfingen-Criesbach, Germany.
Phone: +49 (0) 7940 1230
Email: [email protected]
Website: www.gemu-group.com

Additional Notes: Document subject to alterations as of March 2024.

Catalog excerpts

GEMÜ 655 Manually operated full bore diaphragm valve-1

Features • High mechanical stability • High flow rate due to straight through flow • Can be retrofitted with a pneumatic actuator The GEMU 655 2/2-way diaphragm valve has a metal handwheel and is manually operated. The valve body has a full bore design. • Body configurations: 2/2-way body • Connection types: Flange • Connection standards: ANSI l EN l ISO • Body materials: EN-GJL-250, cast iron material l EN-GJS-400-18-LT, SG iron material l EN-GJS-500-7, ductile iron material • Body lining: Butyl l Hard rubber l Soft rubber • Diaphragm materials: CR l EPDM l IIR l NBR l NR Technical data depends on the respective configuration further information webcode: GW-655

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GEMÜ 655 Manually operated full bore diaphragm valve-2

Product description

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GEMÜ 655 Manually operated full bore diaphragm valve-3

MG = diaphragm size, X = standard * on request Code 4: Flange EN 1092, PN 10, form B, face-to-face dimension FTF EN 558 series 1, ISO 5752, basic series 1 Code 8: Flange EN 1092, PN 16, form B, face-to-face dimension FTF EN 558 series 1, ISO 5752, basic series 1 Code 52: Flange EN 1092, PN 10, form A, face-to-face dimension FTF EN 558 series 7, ISO 5752, basic series 7 Code 53: Flange EN 1092, PN 16, form A, face-to-face dimension FTF EN 558 series 7, ISO 5752, basic series 7 Valve body material Code 13: EN-GJL-250 (GG 25), hard rubber lined Code 16: EN-GJS-500-7 (GGG-50), hard rubber lined Code...

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GEMÜ 655 Manually operated full bore diaphragm valve-4

MG = diaphragm size, X = standard * on request Code 39: Flange ANSI Class 125/150 RF, face-to-face dimension FTF EN 558 series 1, ISO 5752, basic series 1 Code 58: Flange ANSI Class 125/150 FF, face-to-face dimension FTF EN 558 series 7, ISO 5752, basic series 7 2) Valve body material Code 13: EN-GJL-250 (GG 25), hard rubber lined Code 16: EN-GJS-500-7 (GGG-50), hard rubber lined Code 52: EN-GJL-250 (GG 25), soft rubber lined Code 58: EN-GJL-250 (gG 25), butyl lined Code 82: EN-GJS-400-18-LT (GGG 40.3), soft rubber lined Code 83: EN-GJS-400-18-LT (gGG 40.3), hard rubber lined Code 88: EN-GJS-400-18-LT...

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GEMÜ 655 Manually operated full bore diaphragm valve-5

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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GEMÜ 655 Manually operated full bore diaphragm valve-6

Order data

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GEMÜ 655 Manually operated full bore diaphragm valve-7

Technical data Media temperature: Ambient temperature: Storage temperature: Corrosive, inert, gaseous and liquid media which have no negative impact on the physical and chemical properties of the body and diaphragm material. 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. Information on operating pressures applied on both sides and for high purity media on request. Valve not suitable for vacuum applications

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GEMÜ 655 Manually operated full bore diaphragm valve-8

Technical data MG = diaphragm size, Kv values in m3/h Kv values determined in accordance with EN 60534, inlet pressure 5 bar, Ap 1 bar, valve body material cast iron EN-GJL-250 with connection flange EN 1092 length EN 558 series 7 and soft elastomer 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, the process and their tightening torques. Therefore the Kv values may exceed the tolerance limits of the standard. The Kv value curve (Kv value dependent on...

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GEMÜ 655 Manually operated full bore diaphragm valve-9

Technical data MG = diaphragm size Weights in kg

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GEMÜ 655 Manually operated full bore diaphragm valve-10

* CT = A + H1 (see body dimensions) Dimensions in mm

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GEMÜ 655 Manually operated full bore diaphragm valve-11

Dimensions in mm MG = diaphragm size n = number of bolts Code 4: Flange EN 1092, PN 10, form B, face-to-face dimension FTF EN 558 series 1, ISO 5752, basic series 1 2) Valve body material Code 82: EN-GJS-400-18-LT (GGG 40.3), soft rubber lined Code 83: EN-GJS-400-18-LT (gGG 40.3), hard rubber lined Code 88: EN-GJS-400-18-LT (gGG 40.3), butyl lined

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GEMÜ 655 Manually operated full bore diaphragm valve-12

Dimensions in mm MG = diaphragm size n = number of bolts Code 8: Flange EN 1092, PN 16, form B, face-to-face dimension FTF EN 558 series 1, ISO 5752, basic series 1 2) Valve body material Code 82: EN-GJS-400-18-LT (GGG 40.3), soft rubber lined Code 83: EN-GJS-400-18-LT (gGG 40.3), hard rubber lined Code 88: EN-GJS-400-18-LT (gGG 40.3), butyl lined

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GEMÜ 655 Manually operated full bore diaphragm valve-13

Dimensions in mm MG = diaphragm size n = number of bolts Code 52: Flange EN 1092, PN 10, form A, face-to-face dimension FTF EN 558 series 7, ISO 5752, basic series 7 2) Valve body material Code 13: EN-GJL-250 (GG 25), hard rubber lined Code 16: EN-GJS-500-7 (GGG-50), hard rubber lined Code 52: EN-GJL-250 (GG 25), soft rubber lined Code 58: EN-GJL-250 (gG 25), butyl lined Code 92: EN-GJS-500-7 (GGG 50), soft rubber lined Code 98: EN-GJS-500-7 (gGG 50), butyl lined

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GEMÜ 655 Manually operated full bore diaphragm valve-14

MG = diaphragm size Dimensions in mm n = number of bolts Code 53: Flange EN 1092, PN 16, form A, face-to-face dimension FTF EN 558 series 7, ISO 5752, basic series 7 2) Valve body material Code 16: EN-GJS-500-7 (GGG-50), hard rubber lined Code 92: EN-GJS-500-7 (gGG 5o), soft rubber lined Code 98: EN-GJS-500-7 (gGG 5o), butyl lined

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GEMÜ 655 Manually operated full bore diaphragm valve-15

Dimensions in mm MG = diaphragm size n = number of bolts Code 39: Flange ANSI Class 125/150 RF, face-to-face dimension FTF EN 558 series 1, ISO 5752, basic series 1 2) Valve body material Code 82: EN-GJS-400-18-LT (GGG 40.3), soft rubber lined Code 83: EN-GJS-400-18-LT (gGG 40.3), hard rubber lined Code 88: EN-GJS-400-18-LT (gGG 40.3), butyl lined 3) not according to ASME standard

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GEMÜ 655 Manually operated full bore diaphragm valve-16

Dimensions in mm MG = diaphragm size n = number of bolts Code 58: Flange ANSI Class 125/150 FF, face-to-face dimension FTF EN 558 series 7, ISO 5752, basic series 7 2) Valve body material Code 13: EN-GJL-250 (GG 25), hard rubber lined Code 16: EN-GJS-500-7 (GGG-50), hard rubber lined Code 52: EN-GJL-250 (GG 25), soft rubber lined Code 58: EN-GJL-250 (gG 25), butyl lined Code 92: EN-GJS-500-7 (GGG 50), soft rubber lined Code 98: EN-GJS-500-7 (gGG 50), butyl lined

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Dimensions in mm, MG = diaphragm size n = number of bolts The thread of the diaphragm pin "W" corresponds to Whitworth standard.

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GEMÜ 655 Manually operated full bore diaphragm valve-18

GEMÜ Gebr. Müller Apparatebau GmbH & Co. KG Fritz-Müller-Straße 6-8, 74653 Ingelfingen-Criesbach, Germany Phone +49 (0) 7940 1230 · [email protected] www.gemu-group.c

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