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Lohse GmbH, Maschinenbau
Shut-Off Valves EGNA / GGNA

Shut-Off Valves EGNA / GGNA

Product catalog summary

Overview: The document provides detailed specifications and applications for LOHSE shut-off valves, specifically the EGNA and GGNA types, which are used in various industries such as paper, chemical, and wastewater treatment. These valves are constructed from corrosion-resistant materials and are designed for durability and efficiency in harsh environments.

Specifications:

Materials: EGNA valves are made from cast stainless steel, while GGNA valves are made from spheroidal graphite iron with an epoxy coating for corrosion resistance.
Valve Plate: Made from stainless steel, with options for corrosion and acid resistance.
Sealing Options: Metal seated or soft seated with EPDM, NBR, VITON, PTFE, which are replaceable.
Operating Pressure: Varies by size, with a maximum of 10 bar for DN 50-200 and decreasing for larger sizes.
Operating Temperature: Ranges from 120°C for metal and EPDM seals to 230°C for PTFE seals.

Applications:

Paper and Chemical Industry: Used for their corrosion resistance and durability.
Wastewater Treatment: Suitable for environments where contact corrosion is a concern.
Biogas Industry: Effective in handling high-viscosity and aggressive mediums.

Design Features:

Housing: Solid monobloc with a wafer or lug design, full opening, and one-sided sealing.
Operating Elements: Options include handwheel, pneumatic cylinder, electric drive, and bevel gear drive.
Leak Testing: Conducted according to DIN EN 12266-02:2012-04 standards.

Dimensions and Standards: The document includes detailed dimensions for various valve sizes and flange bore specifications according to DIN EN 1092-1 and ANSI B 16.5 Class 150 standards.

Contact Information: The document lists contact details for LOHSE GmbH and its international agencies, providing support and distribution across multiple countries.

Catalog excerpts

Shut-Off Valves of cast stainless steel or spheroidal graphite iron EGNA / GGNA 50 – 600 mm MARTIN LOHSE GmbH Unteres Paradies 63 · D-89522 Heidenheim Postfach 1565 · D-89505 Heidenheim phone +49(0)7321 / 755-42 · fax +49(0)7321 / 755-97 [email protected] www.lohse-gmbh

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Type: EGNA/GGNA Applications Paper and chemical industry pulp and paper production LOHSE-shut-off valves constructed with corrosion and acid resistant stainless steel. The EGNA shjut-off-valves ﬁnd a use in waste water treatment plants and the need to use expensive isolation appliances against contact corrosion is not longer required. The GGNA shut-off-valves are sturdy and have a long service life. They are suitable to shut-off the pipes in all areas of water, waste water or pulp where stainless steel shut-off-valves are not necessary. chemical industry Industrieal sewage treatment water wastewater...

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Type: EGNA/GGNA Shut-Off-Valves Housing • solid monobloc housing - wafer • lug design • full opening • one-sided sealing • infused guidances • type GGNA: epoxy coating Valve plate • solid version of stainless steel (type EGNA: corrosion and acid resistant) Body seat • metal seated or • soft seated with EPDM, NBR, VITON, PTFE (replaceable) • PTFE impregnated synthetic fiber Operating elements • handwheel with non-rising stem • pneumatic cylinder, double-acting • electric drive • bevel gear drive Watertight • Leak test according to DIN EN 12266-02:2012-04 Table A5, test medium liquid, leakage rate...

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Type: EGNA/GGNA Shut-Off-Valves • housing • valve plate • sealing optional: • packing • stuffing box gland • bracket • protection guard Type EGNA:1.4408 Type GGNA: EN-JS1050 / GGG50, epoxy coated 1.4404 / 1.4301 EPDM / NBR metal, NBR / EPDM, VITON, PTFE PTFE impregnated synthetic fiber Type EGNA:1.4408 Type GGNA: EN-JS1050 / GGG50 epoxy coated steel epoxy coated steel • max. operating temperature with sealing of metal 120° C

Open the catalog to page 4

Type: EGNA/GGNA Shut-Off-Valves Type: EGNA/GGNA Shut-Off-Valves Z = total numbers of holes Z1 = number of joint-holes Z2 = number of through-going bores T = usable depth of thread

Open the catalog to page 5

Type: EGNA/GGNA Shut-Off-Valves Type: EGNA/GGNA Shut-Off-Valves Z = total numbers of holes Z1 = number of joint-holes Z2 = number of through-going bores T = usable depth of thread

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Dimensions in mm, flange dimensions to DIN EN 1092-1, PN 10 or ANSI B 16.5 Class 150. Further sizes on request.

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Dimensions in mm, flange dimensions to DIN EN 1092-1, PN 10 or ANSI B 16.5 Class 150. Further sizes on request.

Open the catalog to page 8

Dimensions in mm, flange dimensions to DIN EN 1092-1, PN 10 or ANSI B 16.5 Class 150. Further sizes on request.

Open the catalog to page 9

Dimensions in mm, flange dimensions to DIN EN 1092-1, PN 10 or ANSI B 16.5 Class 150. Further sizes on request.

Open the catalog to page 10

Austria (pulp + paper industry, wastewater + wastewater treatment Fr plants) + CZ, SK, SLO, SRB, HR, H Peter Reiter Handel Mazzetti-Str. 85 3100 St. Polten Phone: +43 (0) 27 42 / 7 73 66 Fax: +43 (0) 27 42 / 7 73 66

Open the catalog to page 11

Shut-Off Valves EGNA / GGNA

Shut-Off Valves EGNA / GGNA

Catalog excerpts

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