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BALANCING VALVES

BALANCING VALVES
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BALANCING VALVES

Product catalog summary
Specifications:
The document provides detailed specifications for various components used in valve assemblies. It includes dimensions (DN, L, D, H, V, KG) for different sizes of valves, along with material specifications for each component such as body, bonnet, stem, disc, gasket, and handwheel. Materials include bronze, DZR brass, cast iron, stainless steel, and composite materials.

Pressure and Temperature Ratings:
Maximum pressure ratings are specified for different valve types, ranging from 16 to 25 bar. Temperature ranges are also provided, with minimum temperatures of -10°C and maximum temperatures varying between +120°C and +130°C.

Components and Materials:
The document lists components such as the body, bonnet, stem, disc, gasket, O-rings, and handwheel, along with their respective materials. Common materials include cast iron, DZR brass, stainless steel, EPDM, PTFE, and composite materials.

Flow Coefficient (Kv) Data:
Tables provide Kv values at various positions, indicating the flow capacity of the valves at different openings. These values are crucial for understanding the flow characteristics and performance of the valves.

Installation Recommendations:
Guidelines for installation distances are provided, such as the distance from pumps and elbows, which are specified as multiples of the nominal diameter (DN).
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Catalog excerpts

BALANCING VALVES-1

STATICO AD ORIFIZIO VARIABILE VARIABLE ORIFICE DOUBLE REGULATING VALVES Valvole industriali - Industrial Valves

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BALANCING VALVES-3

Valvole di bilanciamento statico ad orifizio variabile Variable orifice double regulating valves Series PN25 - Bronze contruction Costruita in ghisa grigia EN-GJL-250 Series PN 16 - Cast iron contruction Costruita in ghisa grigia EN-GJL-250 Series PN 16 - Cast iron contruction Costruita in ghisa grigia EN-GJL-250 Series PN 16 - Cast iron contruction

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BALANCING VALVES-4

Valvola di bilanciamento, serie PN 25, costruita con corpo in bronzo, vitone ed interni in ottone, guarnizione di tenuta in PTFE, comando manuale a volantino con indicatore micrometrico, completa di prese di pressione ad innesto rapido, attacchi fllettati GAS F/F (ISO 228/1). Balancing valve, series PN 25, manufactured with body on bronze, bonnet and inner on brass, seal gasket on PTFE, manual control handwheel with micrometric indicator, complete with fast plug pressure, threaded connnection GAS F/F (ISO228/1). Execution from 0W up to 02". WORKING CONDITIONS Pressione Massima - Max Pressure...

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BALANCING VALVES-5

Valvola di bilanciamento, serie PN 16, costruita con corpo e cappello in ghisa grigia EN-GJL-250, interni in ottone, guarnizione di tenuta in gomma EPDM, comando manuale a volantino con indicator micrometrico, completa di prese di pressione ad innesto rapido, attacchi flangiati UNI PN 16 (EN 1092-2) Balancing valve, series PN 16, manufactured with body and bonnet on cast iron EN-GJL-250, inner on brass, seal gasket on EPDM rubber, manual control handwheel with micrometric indicator, complete with fast plug pressure, flanged connnection UNI PN16(EN 1092-2). WORKING CONDITIONS Pressione Massima...

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BALANCING VALVES-6

Valvola di bilanciamento, serie PN 16, costruita con corpo e cappello in ghisa grigia EN-GJL-250, interni in ottone, guarnizione di tenuta in gomma EPDM, comando manuale a volantino con indicator micrometrico, completa di prese di pressione ad innesto rapido, attacchi flangiati UNI PN 16 (EN 1092-2) Balancing valve, series PN 16, manufactured with body and bonnet on cast iron EN-GJL-250, inner on brass, seal gasket on EPDM rubber, manual control handwheel with micrometric indicator, complete with fast plug pressure, flanged connnection UNI PN16(EN 1092-2) WORKING CONDITIONS Pressione Massima...

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BALANCING VALVES-7

Valvola di bilanciamento, serie PN 16, costruita con corpo in ghisa grigia EN-GJL-250, cappello in ghisa sferoidale EN-GJS-500-7, interni in ottone, guarnizione di tenuta in gomma EPDM, comando manuale a volantino con indicatore micrometrico, completa di prese di pressione ad innesto rapido, Balancing valve, series PN 16, manufactured with body on cast iron EN-GJL-250, bonnet on nodular cast iron EN-GJS-500-7, inner on brass, seal gasket on EPDM rubber, manual control handwheel with micrometric indicator, complete with fast plug pressure, flanged connnection UNI PN 16 (EN 1092-2) WORKING CONDITIONS...

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BALANCING VALVES-9

Posizione - Position

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BALANCING VALVES-10

Caratteristiche idrauliche Hydraulic charcteristics Posizione - Pos/f/on

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BALANCING VALVES-11

Posizione - Position

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BALANCING VALVES-12

Caratteristiche idrauliche Hydraulic charcteristics

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BALANCING VALVES-14

Posizione - Position Kv Posizione - Position Kv Posizione - Position Kv Posizione - Position Kv

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BALANCING VALVES-15

La posizione di regolazione pud essere facilmente letta dalle scale graduate che Indlcano la regolazione dl base (girl Interl) e la regolazione fine (1/10 dl giro). Per tutti I modelll la posizione 0.0 corrlsponde a valvola chiusa, mentre la posizione dl valvola completamente aperta e differente per i vari DN e modelli ed e rilevabile nei graflcl e nelle tabelle rlportate nelle paglne precedentl. Le valvole sono dotate dl un slstema dl memorlzzazlone della posizione di regolazione che permette, dopo una chiusuracompleta, che pub essere necessaria per varie ragioni, una facile riapertura alia...

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BALANCING VALVES-16

Valvole industriali - Industrial Valves Sede legale / Registered office: via Melzi d'Eril, 26 - 20154 Milano Sede amministrativa, domicilio fiscale, stabilimento, uffici / Company headquarter, fiscal domicile, factory and office: via Montecastello, 53 - 13037 Serravalle Sesia (VC) - ITALY [email protected] - www.mival.it

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