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KNIFE GATE VALVES A_Lug Series

KNIFE GATE VALVES A_Lug Series
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KNIFE GATE VALVES A_Lug Series

Product catalog summary
Product Description: The unidirectional guillotine valve, Type "LUG", features a single-piece molded body with guides for blade support and closure wedges. It ensures high flow rates with minimal pressure loss and offers various seat and packing materials. The standard face-to-face dimension is CMO, with a molded arrow indicating fluid direction.
General Applications: Suitable for liquid fluids with up to 5% suspended solids. For gravity discharge of dry solids, installation opposite to the arrow direction is recommended. Applicable industries include paper, mining, wastewater treatment, chemical, food, pumping, and silo discharge.
Technical Data: Standard manufacturing range from DN50 to DN1200, with larger sizes available on request. Working pressures vary by size, from 10 kg/cm² for DN50 to DN125, down to 2 kg/cm² for DN700 to DN1200. Flange connections comply with DIN PN 10, with other standards available on request. The valve adheres to directives 98/37/CE, 97/23/CE, and 94/9/CE.
Advantages: The Type A LUG valve's conical interior helps release trapped solids, reducing the torque needed for closure. It can handle counter pressure up to 30% of the maximum working pressure without blade deformation. The stainless steel 18/8 stem offers superior corrosion resistance compared to competitors.
Standard Manufacturing Materials: The valve body is available in cast iron GG25 and stainless steel CF8M, with other materials like ductile iron GGG50 and carbon steel A216WCB available on request. The blade is typically stainless steel AISI304 or AISI316, depending on the body material.
Seats: Six types of seats are available, ranging from metal/metal to metal/elastomer with reinforced ferrule, each designed for specific applications. Sealing materials include EPDM, Nitrile, Viton, Silicone, and PTFE, each suitable for different temperature ranges and fluid types.
Packing: Standard packing includes three braids with an EPDM O-ring, easily replaceable without removing the valve from the line. Various packing materials are available for different applications, including cotton, PTFE, graphite, and ceramic fiber.
Stem and Actuation: The stem is stainless steel 18/8, with options for rising or non-rising designs. Various interchangeable actuators are available, with necessary accessories provided by CMO if needed.
Accessories: Options include mirror-polished blades, PTFE-coated blades, stellite-coated blades, scrapers, air injections, and more, to adapt the valve to specific working conditions.
Overview of Actuation Types: CMO offers various types of actuations for their knife gate valves, specifically the Type A Lug E model. The document outlines the general dimensions and specifications for different actuation types, including manual and pneumatic options.
General Dimensions: The document provides detailed dimensions for different configurations of the knife gate valves, including rising and non-rising stem options, as well as pneumatic actuators with both double and single effect mechanisms.
Pneumatic Actuators: Pneumatic actuators are designed to operate at air pressures between 6 and 10 kg/cm², with 10 kg/cm² being the maximum allowable pressure. If the air pressure is below 6 kg/cm², the actuator may be oversized depending on working conditions.
Double Effect Actuation: For valves ranging from DN 50 to DN 200, the cylinder and end caps are made of aluminum, with a screw made of AISI304, a piston covered in elastomer, and nitrile O-rings. For sizes above DN 200, the end caps are made of ductile iron or carbon steel. Stainless steel cylinders are available for corrosive environments upon request.
Single Effect Actuation: Available for either closure or opening in the absence of air (normally closed/open). The cylinder is aluminum, end caps are ductile iron or carbon steel, the screw is AISI304, the piston is elastomer-coated steel, and the spring is carbon steel. For valves up to DN 300, the actuator includes a spring. For sizes above DN 300, a double effect cylinder with an air reservoir is used to perform the last maneuver in case of air loss.
Connection Details: The document also includes details on flange connections for the knife gate valves.
Note: For more information, refer to the "CMO Pneumatic Actuators Catalog."
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Catalog excerpts

KNIFE GATE VALVES A_Lug Series-1

VANNES A GUILLOTINE -- TYPE A LUG E -- > doc. aLUG.02/08 Vanne a guillotine unidirectionnelle type LUGӔ. Identique a la vanne tape A, mais avec des oreillettes. Corps moul dans une seule pice avec de glissi騨res pour supporter la pelle et les coins de fermeture. Cette vanne procure de grands dbits avec petites pertes de charge. Il y a une importante varit驩 de matires pour le sige et les garnitures de presse-訩toupe. Le face a face est standard CMO. Une flche moule dans le corps de la vanne indique la direction du fluide. > Utilis詩e pour applications de fluides liquides avec une concentration de solides en suspensin maximum du 5 %. Si la vanne est utilise pour d㩩chargement par gravit de solides secs, on recommend son installation dans le sens contraire quindique la fl钨che du corps. Dessine pour le suivant range industriel: - Industrie du papier. - Industrie minire. - Traitement d騒eaux uses. - Industrie chimique. - Industrie alimentaire. - Pompage. - Dchargement de silos. > Range de fabrication standard: Du DN50 jusquau DN1200 (tailles plus grandes sous demande) Pressions du travail:Pressions de travail: Du DN 50 jusquҒa DN 125: 10 (kg/cm2) DN 150: 8 (kg/cm2) DN 200: 7 (kg/cm2) Du DN 250 jusquau DN 300: 5 (kg/cm2) Du DN 350 jusquҒau DN 400: 4 (kg/cm2) Du DN 450 jusquau DN 600: 3 (kg/cm2) Du DN 700 jusquҒau DN 1200: 2 (kg/cm2) Nota : Les pressions indiques devent tre appliqu骩es dans la direction de la flche moule sur le corps de la vanne A cause du dessin de la vanne avec de glissi詨res de support pour la pelle est possible une application dans le sens inverse a la flche supportant un 30% de pression de travail par rapport a la pression maximum admissible. Raccordement a brides: Le raccordement a brides standard est daccord a la norme DIN PN 10. Autres raccordements sont aussi possibles comme ANSI 150, DIN PN 6 - PN 16 - PN 25, British standard, Australian standard, JIS standard sous demande. Directives appliqu蒩es: Directive 98/37/CE (concernant a machines), Directive 97/23/CE (PED: Groupe 2), Directive 94/9/CE (ATEX: Groupe II, Cat. 3 / Zones 2 y 22). Dossier de qualit: Test hydrostatique de toutes les vannes a C.M.O. Il existe la possibilit de fournir les certificats de test et mati驨res. Essai du corps = pression maximum de travail x 1,5 Essai du sige = Pression maximum de travail x 1,1 C.M.O.Amategui Aldea 142, 20400 Txarama-Tolosa (SPAIN) Phone: 943-67.33.99 / Fax:943.67.24.40 / [email protected] http://www.cmo.es -1- >

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KNIFE GATE VALVES A_Lug Series-2

VANNES A GUILLOTINE -- TYPE A LUG E -- > doc. aLUG.02/08 Cest une vanne unidirectionnelle et il existe le risque que la pelle se d钩forme cause dune contre pression. CҒest impossible pour une vanne CMO, car le corps a de glissires qui supportent la pelle et permettent que la vanne puisse travailler avec une contre pression du 30% par rapport a la pression de travail maximum admissible sans que la pelle se dforme. Le capuchon de protection de la tige est ind詩pendant a lҩcrou de fixation du volant a fin de pouvoir dmonter le capuchon sans dmonter le volant compl驨tement. Cet avantage permet faire...

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KNIFE GATE VALVES A_Lug Series-3

VANNES A GUILLOTINE -- TYPE A LUG E -- > doc. aLUG.02/08 Sige 1: Fermeture metal/metal. Ce type de sige n詒inclu aucun joint dҩtanchit, et le taux de fuite estim驩 (considrant de leau comme fluide d钒essais) est du 1,5 % du dbit dans la tuyauterie. Sige 2: Fermeture metal/騩lastomre standard. Ce type de sige inclu un joint d訒tanchit驩 qui est soutenu au corps par un frette en AISI316. Sige 3: Fermeture metal/lastom驨re avec frette renforc. Ce type de sige inclu une joint d騒tanchit驩 qui est soutenu par un frette renforc qui a 2 fonctions : (protger la vanne de l驒abrasion, et nettoyer la pelle quand...

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KNIFE GATE VALVES A_Lug Series-4

VANNES A GUILLOTINE -- TYPE A LUG E -- > doc. aLUG.02/08 La garniture standard de CMO est compose de 3 tresses avec 1 joint torique en EPDM, il procure l钩tanchit entre le corps et la pelle, 驩vitant de fuites latmosphҨre. Elle est situe dans une zone accessible et elle est facilement interchangeable sans dmonter la vanne de la ligne. Ci dessous nous trouvons diff驩rents types de garnitures disponibles en fonction de chaque application. COTTON SUIFFE (Recomend pour services hydrauliques) Cette garniture est compose par tresses de fibres de cotton impr驩gnes de graisse l頒intrieur et l頒extrieur. Cest...

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KNIFE GATE VALVES A_Lug Series-5

VANNES A GUILLOTINE -- TYPE A LUG E -- > doc. aLUG.02/08 P(bar) = 0.3 T = 1400ʺC PH = 0-14 > La tige dans les vannes CMO est en acier inoxydable 18/8. Cette caractristique procure une haute rsistance et excellentes propri驩ts contre la corrosion. Le dessin de la vanne peut tre a tige montante ou a tige non montante. Quand la tige est montante on fourni un capuchon pour la protection de la tige contre les poussi骨res, et il maintient la tige bien lubrifie. > Le fouloir permet appliquer une force et pression uniforme sur le presse-toupe pour assurer l驒tanchit驩. Comme norme, les vannes avec le corps...

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KNIFE GATE VALVES A_Lug Series-6

VANNES A GUILLOTINE -- TYPE A LUG E -- > doc. aLUG.02/08 Cest possible faire diffҩrentes trous dans le corps pour insuffler de lair, vapeur ou autres fluides a fin de nettoyer le siҨge de la vanne avant sa fermeture. Contact de fin de cours mcaniques, dtecteurs inductives et positionneurs (Figure 2) Installation de contact de fin de cours m驩caniques, dtecteurs inductives pour indication dune position punctuelle de la vanne et positionneurs pour indication de position continue. Electrodistributeurs (Figure 2) Pour distribution de l钒air aux vrins pneumatiques. Botier de connection, c鮢blage et tubbing...

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KNIFE GATE VALVES A_Lug Series-7

VANNES A GUILLOTINE -- TYPE A LUG E -- > doc. aLUG.02/08 Ils existent diffrents types dactionnements 钠 votre disposition: C.M.O.Amategui Aldea 142, 20400 Txarama-Tolosa (SPAIN) Phone: 943-67.33.99 / Fax:943.67.24.40 / [email protected] http://www.cmo.es -7- >

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KNIFE GATE VALVES A_Lug Series-8

VANNES A GUILLOTINE -- TYPE A LUG E -- > doc. aLUG.02/08 C.M.O.Amategui Aldea 142, 20400 Txarama-Tolosa (SPAIN) Phone: 943-67.33.99 / Fax:943.67.24.40 / [email protected] http://www.cmo.es -8- >

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KNIFE GATE VALVES A_Lug Series-9

VANNES A GUILLOTINE -- TYPE A LUG E -- > doc. aLUG.02/08 C.M.O.Amategui Aldea 142, 20400 Txarama-Tolosa (SPAIN) Phone: 943-67.33.99 / Fax:943.67.24.40 / [email protected] http://www.cmo.es -9- >

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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.