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general catalogue

general catalogue
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general catalogue

Product catalog summary
Company Overview: MIVAL is an Italian company with 45 years of experience in producing industrial valves, focusing on bellows sealed globe valves. They have introduced new models like fig. 2010 for water installations and fig. 2012 for industrial and naval applications.
Specifications and Standards: MIVAL's valves meet EN and ANSI standards, ensuring high-quality products with perfect tightness, even in metal-seated valves. They are suitable for steam, oil, gas, air, and water applications.
Quality and Safety: The company emphasizes quality and safety by using oversized components and conducting rigorous pressure and tightness tests according to UNI EN 12266. Valves are tested for durability through thousands of opening and closing cycles.
Certifications: MIVAL has been certified under UNI EN ISO 9001:2008 since 1995. Other certifications include the Pressure Equipment Directive (97/23/CE), ATEX (94/9/CE), and TA Luft for zero emissions.
Environmental Commitment: MIVAL has installed a 172 Kw photovoltaic power plant, reducing CO2 emissions by producing approximately 190,000 Kwh annually.
Product Features: The document details various valve models, including cast iron and nodular cast iron streamlined flow valves with maintenance-free features. Key components include a stop screw, lubricator, rotating disc, and double anti-friction bearings.
Applications and Materials: Valves are suitable for heat transfer systems, thermal power stations, and diathermic oil installations. Materials used include EN-GJL-250 and EN-GJS-400-18-LT for the body and stainless steel for critical components.
Technical Data: Detailed technical specifications are provided, including dimensions, pressure ratings, and Kv values for various valve sizes and configurations.
Valve Types and Features: The document describes different valve types, such as regulating discs with soft sealing interchangeable PTFE discs and balanced discs for high-pressure applications. Materials include nodular cast iron, stainless steel, and carbon steel.
Performance Data: Kv values at various stroke rates for different valve models indicate flow capacity at different percentages of valve opening.
Manufacturing Variations: Details on manufacturing variations include rising handwheels, non-rotating discs, and rotating stems.
Operating Conditions: Temperature and pressure ratings are specified for each valve type, ensuring compatibility with various operational environments.
Main Standard Features: The document describes sediment collecting strainers, specifically the 'Y' type, made from materials like nodular cast iron and stainless steel. Each strainer features a screen on wire cloths and a plug standard from DN 65.
Applications: Strainers and valves are suitable for heat transfer systems, thermal power stations, industrial boilers, district heating plants, and diathermic oil installations, handling hot water, steam, air, and diathermic fluids.
Specifications: Detailed specifications for strainers include dimensions, weight, and Kv values for different filtration levels. Working conditions specify temperature ranges and corresponding pressures.
Balanced Disc Usage: The document explains the necessity of using a balanced disc in valves when the working pressure exceeds certain values, emphasizing correct installation.
Materials: Materials used for strainers include EN-GJS-400-18-LT for the body and stainless steel 1.4301 for the screen.
Additional Notes: Other filtration options are available upon request, and from DN 150, screens are reinforced with a screen carrier.
Contact Information: MIVAL's head office is located in Milan, with the factory and technical department in Serravalle Sesia, Italy. Contact details include phone, fax, email, and website information.
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Catalog excerpts

general catalogue-1

Valvole industriali - Industrial valves

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general catalogue-2

Da 45 anni MIVAL produce in Italia diversi tipi di valvolame industriale con un’alta specializzazione e competenza per le valvole a soffietto. Alla produzione standard altamente robotizzata sono stati affiancati nuovi modelli, la fig. 2010 per acqua, che sta riscuotendo successo per la versatilità dei suoi impieghi e la fig. 2012, la prima valvola MIVAL brevettata, un’ assolutà novità nel campo degli impianti industriali e navali. Da sempre MIVAL garantisce la qualità dei suoi prodotti assicurando la tenuta perfetta anche nelle valvole con tenuta metallica, disponibili a vite interna e a vite...

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Since 1967 MIVAL produces in Italy different types of industrial valves and is highly specialized in bellows sealed globe valves. New valves, such as fig. 2010 for water installations, which is highly appreciated for its versatility and fig. 2012, the first patented valve by MIVAL, that is a great innovation for industrial plants, have been added to the standard valves, manufactured through highly affordable robotic systems. Since ever MIVAL guarantees the quality of its products and the perfect tightness of its valves with metal seats, available with inside and outside screw, for low and high...

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QUALITA’ CERTIFICATA Dal 1995 MIVAL è certificata UNI EN ISO 9001:2008 per la produzione e la commercializzazione di valvole per impianti industriali; inoltre, tutte le fasi della progettazione e della produzione sono garantite da numerose certificazioni tra cui la direttiva 97/23/ CE (P.E.D.), la direttiva 94/9/CE (ATEX) e la TA Luft che assicura la tenuta delle valvole verso l’esterno garantendo 0 emissioni. Attenti al rispetto dell’ambiente l’azienda ha installato sul tetto dello stabilimento un impianto fotovoltaico della potenza di 172 Kw che produce in media circa 190.000 Kwh all’anno riducendo...

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CERTIFIED QUALITY Since 1995 MIVAL is certified according to UNI of valves for industial installations; moreover, the engineering and the production processes are certified according to the European Directive Luft which guarantees zero leakage to the To protect the environment MIVAL installed on the roof of its factory a photovoltaic power plant of 172 Kw which produces an average of 190.000 Kwh per year thus significantly reducing emissions of C02 into the environment Another key issue of MIVAL is the affordable organization of its sales department and the considerable range of valves kept in...

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Valvola a flusso avviato a vite esterna con soffietto in ghisa grigia, esente manutenzione Cast iron streamlined flow valve outside screw with bellows, maintenance free Caratteristiche principali di serie Main standard features Limitatore di alzata (fornibile a richiesta gratuitamente) Rise limiter (available on request) Stop screw Ingrassatore Lubricator Doppia ralla antifrizione Double anti-friction bearings Indicatore di apertura con funzione antirotazione Opening index with anti-rotatinon function Controtenuta di sicurezza ricavata sullo stelo Backseat Otturatore rotante Rotating disc Sede...

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KV alla percentuale di alzata figura 61/R Kv at stroke rate item 61/R Condizioni di esercizio/ Working conditions Temperatura - Temperature [°C] -10/120 150 16 14,4 Pressione - Pressure [bar] E’ necessario l’uso dell’otturatore equilibrato quando la pressione di esercizio supera i seguenti valori It is necessary to use the balanced disc when the working pressure is over the following values DN Pressione - Pressure [bar] NOTA: Utilizzando una valvola con otturatore equilibrato è indispensabile installarla al contrario, cioè con la pressione sopra l’otturatore NOTE: Using a valve with balanced...

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Valvola a flusso avviato a vite esterna con soffietto in ghisa sferoidale, esente manutenzione Nodular cast iron streamlined flow valve outside screw with bellows, maintenance free Caratteristiche principali di serie Main standard features Limitatore di alzata (fornibile a richiesta gratuitamente) Rise limiter (available on request) Stop screw Ingrassatore Lubricator Doppia ralla antifrizione Double anti-friction bearings Indicatore di apertura con funzione antirotazione Opening index with anti-rotatinon function Controtenuta di sicurezza ricavata sullo stelo Backseat Otturatore rotante Rotating...

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general catalogue-9

KV alla percentuale di alzata figura 64/R Kv at stroke rate item 64/R Condizioni di esercizio/ Working conditions Temperatura - Temperature [°C] -10/120 150 16 15,5 Pressione - Pressure [bar] E’ necessario l’uso dell’otturatore equilibrato quando la pressione di esercizio supera i seguenti valori It is necessary to use the balanced disc when the working pressure is over the following values DN Pressione - Pressure [bar] NOTA: Utilizzando una valvola con otturatore equilibrato è indispensabile installarla al contrario, cioè con la pressione sopra l’otturatore NOTE: Using a valve with balanced...

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Valvola a flusso avviato a vite esterna con soffietto in ghisa sferoidale, esente manutenzione Nodular cast iron streamlined flow valve outside screw with bellows, maintenance free Caratteristiche principali di serie Main standard features Limitatore di alzata (fornibile a richiesta gratuitamente) Rise limiter (available on request) Stop screw Ingrassatore Lubricator Doppia ralla antifrizione Double anti-friction bearings Indicatore di apertura con funzione antirotazione Opening index with anti-rotatinon function Controtenuta di sicurezza ricavata sullo stelo Backseat Otturatore rotante Rotating...

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KV alla percentuale di alzata figura 63/R Kv at stroke rate item 63/R Condizioni di esercizio/ Working conditions Temperatura - Temperature [°C] -10/120 150 25 24,3 Pressione - Pressure [bar] E’ necessario l’uso dell’otturatore equilibrato quando la pressione di esercizio supera i seguenti valori It is necessary to use the balanced disc when the working pressure is over the following values DN Pressione - Pressure [bar] NOTA: Utilizzando una valvola con otturatore equilibrato è indispensabile installarla al contrario, cioè con la pressione sopra l’otturatore NOTE: Using a valve with balanced...

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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.