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Shut-Off Valves CAW

Product catalog summary

Overview

This document details the LOHSE CAW series stainless steel shut-off valves, part of the LOHSE COMPACT program, designed for water, wastewater, food industry, and municipal sewage treatment applications. The valves are acid-resistant, eliminating the need for additional isolation materials to prevent corrosion.

Applications

Water and wastewater management
Food industry processes (salt works, sugar mills, wineries, breweries)
Municipal sewage treatment plants

Construction and Materials

Housing: Rust and acid-resistant stainless steel (grades 1.4404, 1.4541, 1.4571 depending on size)
Valve Plate: Stainless steel (1.4571)
Slide Lining: High abrasion-resistant plastics such as glass fiber reinforced polyester (GRP) and polypropylene (PP)
Seals: NBR, EPDM, and VITON elastomers
Packing Assembly: Aramid fiber impregnated with PTFE, sealed with EPDM or VITON
Stuffing Box Gland: Stainless steel or ultra-high molecular weight polyethylene (PE-HMW)
Flange Rings and Fasteners: Stainless steel and corrosion-resistant materials

Design Features

Two-part housing for easy maintenance
Pressed stainless steel plate construction ensures shape retention and lightweight installation
Valve flow opening matches nominal pipe diameter without flow contraction
Modular system with interchangeable operating elements and drives (handwheel, pneumatic, electric)
Leak-tightness tested to DIN EN 12266-02:2012-04, achieving leakage rate A
Protection guards compliant with Machinery Directive 2006/42/EC for automated valves

Operating Elements and Drives

Manual handwheel with ergonomic handle
Electro and pneumatic drives for remote operation
Drives are exchangeable without removing the valve body, simplifying maintenance and spare parts management
Additional accessories and extensions available on request

Technical Specifications

Nominal Diameter Range: 50 mm to 1000 mm
Maximum Operating Pressure: 8 bar for DN 50-80, decreasing to 1.5 bar for DN 700-1000
Maximum Operating Temperature: Up to 105°C with NBR seals, 120°C with EPDM seals
Flange Standards: DIN EN 1092-1 PN 10 and ANSI B 16.5 Class 150 (ANSI B 16.47 Class 150 for DN ≥ 700)
Flange Bore Details: Comprehensive tables specify bolt circle diameters, bolt numbers and sizes, thread depths, and hole types for all nominal sizes

Dimensions and Weights

Detailed dimension tables cover various valve types and drive configurations, including handwheel (CAWHns), pneumatic cylinder with protection guard (CAWP/G), electric drive with protection guard (CAWE/G), bevel gearbox handwheel (CAWGK), sprocket drive (CAWK), square head (CAWX), and round sleeve (CAWM). Key parameters include flange diameter, face-to-face length, height, and weight, facilitating precise installation planning.

Modular System Advantages

Interchangeability of valve bodies and operating elements reduces spare parts inventory complexity
Quick, cost-effective replacement of actuating elements
Easy upgrades or changes to valve drives without dismantling piping

Compliance and Standards

Leakage testing per DIN EN 12266-02
Flange dimensions per DIN EN 1092-1 and ANSI standards
Safety guards compliant with Machinery Directive 2006/42/EC

Contact and Distribution

Manufacturer: MARTIN LOHSE GmbH, Germany. The document includes an extensive directory of international distributors and representatives across Europe, Asia, North America, Africa, and other regions, providing contact details such as addresses, phone/fax numbers, emails, and websites.

International Representatives Highlights

Denmark: Uni-Valve A/S, Glostrup
Finland: Klinger Finland Oy / Aseko, Masala
France, Morocco, Tunisia, Algeria: T.N.P., Saint-Maur
Great Britain: Voith Turbo Ltd., Croydon
India: Antrieb Technik Private Limited, Chennai
Japan: Voith IHI Paper Technology Co. Ltd., Tokyo
USA, Canada, Mexico: Voith Paper Inc., Appleton, WI
And many others covering key global markets

Communication Channels

Multiple contact methods (phone, fax, email, website) ensure efficient customer support and technical assistance worldwide.

Document Version

Version 1820, indicating the edition or update cycle.

Critical Information and Best Practices

Global Reach: Extensive international network ensures worldwide service coverage.
Accessibility: Multiple communication channels enhance customer engagement and support.
Localization: Local representatives enable better understanding of regional market needs and faster response times.
Up-to-date Contacts: Users should verify contact details periodically due to possible changes.

Summary

The LOHSE CAW shut-off valves provide robust, corrosion-resistant solutions suitable for demanding industrial and municipal fluid control applications. Their modular design, compliance with international standards, and variety of operating options make them versatile, maintainable, and globally supported components.

Catalog excerpts

Valves of stainless steel · COMPACT-Program 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-gmb

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Applications Municipal sewage treatment water wastewater When LOHSE COMPACT-gate valves of acid resistant stainless steel are installed in waste water treatment plants, the need to use expensive isolation appliances to guard against contact-corrosion is removed. Food industry LOHSE COMPACT-gate valves with seals, suitable for food, are widely used as shut-off valves for viscous and glutionous media as for instance in salt works, sugar mills, wine making industry, breweries etc. food industry

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Construction Stainless steel housing • of a rust and acid resistant material which prevents not only its own corrosion • • • but also contact corrosion on stainless steel piping therefore saving expensive isolation materials two parts – easy to maintain made from pressed stainless steel plate which keeps its shape – light and easy to install the frame for the drive acts at the same as a fastening for the switch and control mechanisms Plastic slide lining • this material has the highest slide properties but at the same time is abrasion resistant • resistant to temperature extremes and acid • easy...

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Valve slide plate corrosion und acid resistant stainless steel Stuffing box gland corrosion und acid resistant stainless steel Press gland of ultra high molecular low pressure polyethylene Packing assembly Aramid fibre PTFE impregnated with sealing of EPDM or VITON Housing plate entirely of corrosion and acid resistant stainless steel Sealing gasket NBR, EPDM or VITON Fill-in piece NBR, EPDM or VITON Slide-cup - CAW -of glass fibre strengthened polyester resin Special flat sealing NBR, EPDM or VITON

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aramid fibre with impregnation of PTFE EPDM, VITON or NBR PE-HMW (RCH 500) 1.4301 • max. operating temperature with sealing NBR 105° C with sealing EPDM 120° C

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Operating elements - the LOHSE modular system All LOHSE COMPACT-valves comprise the following main groups: • valve body type: CAW • operating elements type Hns, P, E, GK, K, X (accessories such as e.g. extensions on inquiry) All elements are interchangeable for any given size. Thereby the connections of brackets as well as the coupling of actuator and valve plate will be removed and fixed again after the exchange. No removal of incorporated valve body (notice safety rules - pipes must be pressureless). This facility is called the LOHSE modular system which offers the following advantages: • simplified...

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Z = total number of holes Z1 = number of joint-holes Z2 = number of through-going bores T = usable depth of thread

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Z = total number of holes Z1 = number of joint-holes Z2 = number of through-going bores T = usable depth of thread

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Type: CAWHns Shut-Off-Valves Type: CAWHns Shut-Off-Valves *) opening DN - 3mm, full opening on request. Dimensions in mm, flange dimensions to DIN EN 1092-1, PN 10 or ANSI B 16.5 Class 150 (> DN 700: ANSI B 16.47 Class 150). Further sizes on request.

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COMPACT-shut-off-valve pneumatic cylinder and protection guard *) Opening DN - 3mm, full opening on request. Dimensions in mm, flange dimensions to DIN EN 1092-1, PN 10 or ANSI B 16.5 Class 150 (> DN 700: ANSI B 16.47 Class 150); air connection acc. VDI/VDE 3845 (NAMUR). Further sizes on request.

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Type: CAWP/G Shut-Off-Valves Type: CAWP/G Shut-Off-Valves Dimensions in mm, flange dimensions to DIN EN 1092-1, PN 10 or ANSI B 16.5 Class 150 (> DN 700: ANSI B 16.47 Class 150). Further sizes on request.

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*) Opening DN - 3mm, full opening on request. Dimensions in mm, flange dimensions to DIN EN 1092-1, PN 10 or ANSI B 16.5 Class 150 (> DN 700: ANSI B 16.47 Class 150). Further sizes on request.

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Type: CAWGK Shut-Off-Valves ) IDH5E® Type: CAWGK Shut-Off-Valves ) IDH5E® Dimensions in mm, flange dimensions to DIN EN 1092-1, PN 10 or ANSI B 16.5 Class 150 (> DN 700: ANSI B 16.47 Class 150). Further sizes on request.

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Type: CAWK Shut-Off-Valves Type: CAWK Shut-Off-Valves *) Opening DN - 3mm, full opening on request . Dimensions in mm, flange dimensions to DIN EN 1092-1, PN 10 or ANSI B 16.5 Class 150 (> DN 700: ANSI B 16.47 Class 150). Further sizes on request.

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*) Opening DN - 3mm, full opening on request . Dimensions in mm, flange dimensions to DIN EN 1092-1, PN 10 or ANSI B 16.5 Class 150 (> DN 700: ANSI B 16.47 Class 150). Further sizes on request.

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Type: CAWMCOMPACT-shut-off-valve round sleeve DN BD [bar] A B *) Opening DN - 3mm, full opening on request. Dimensions in mm, flange dimensions to DIN EN 1092-1, PN 10 or ANSI B 16.5 Class 150 (> DN 700: ANSI B 16.47 Class 150). Further sizes on request.

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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

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