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Valvole a farfalla

  • Monoflange Wafer Type Butterfly Valves
    Monoflange Wafer Type Butterfly Valves
    Valve Type Monoflange Type Wafer Butterfly Valve
    Valve Model D371X (Monoflange Type)
    Nominal Diameter (DN) DN50 ~ DN600 (or as required)
    Nominal Pressure (PN) PN10 / PN16 / PN25 (optional)
    Connection Type Monoflange Wafer Type
    Operation Type Worm Gear Operation
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  • 4″-150LB-Lugged PFA Lined Butterfly Valve
    4″-150LB-Lugged PFA Lined Butterfly Valve
    Nominal size (NPS) 4″ (DN100)
    Pressure rating Class 150LB (PN10 / PN16)
    Valve type Lugged, concentric (center line)
    Temperature range -29°C ~ +160°C (standard PFA); -20°C ~ +200°C (high performance PFA/TFM)
    Vacuum capability Suitable from -10°C to +160°C, down to 0.0002 psia
    Leakage rating Bidirectional zero leakage, ISO 5208 Rate A / ANSI Class VI
    Flow direction Bidirectional
    Mounting orientation Any angle
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  • Loose Liner Wafer-Type Butterfly Valve c/w Lever
    Loose Liner Wafer-Type Butterfly Valve c/w Lever
    Valve Type Wafer Type Butterfly Valve (Center Line / Concentric Design)
    Body Material Ductile Iron (ASTM A536 Grade 65-45-12 / GGG-50)
    Disc Material Ductile Iron + Nickel Plated (Electroless Nickel Plating – ENP)
    Stem Material Stainless Steel (AISI 410 / 304 / 316)
    Seat Material Replaceable Soft Seat – EPDM / Buna-N / Viton / PTFE (Specify)
    Nominal Size 2″ – 24″ (DN50 – DN600)
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  • Loose Liner Wafer-Type Butterfly Valve cw Gear
    Loose Liner Wafer-Type Butterfly Valve cw Gear
    Valve Type Wafer Type Butterfly Valve (Center Line / Concentric Design)
    Body Material Ductile Iron (ASTM A536 Grade 65-45-12 / GGG-50)
    Disc Material Ductile Iron + Nickel Plated (Electroless Nickel Plating – ENP)
    Stem Material Stainless Steel (AISI 410 / 304 / 316)
    Seat Material Replaceable Soft Seat – EPDM / Buna-N / Viton / PTFE (Specify)
    Nominal Size 2″ – 24″ (DN50 – DN600)
    Pressure Rating Class 125 / Class 150 / PN10 / PN16
    Design Standard API 609 / MSS SP-67 / ISO 5752
    Face-to-Face API 609 Short Pattern / ISO 5752 Series 20
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  • Economy Wafer-type Butterfly Valves (CF8/CF8/PTFE)
    Economy Wafer-type Butterfly Valves (CF8/CF8/PTFE)
    Valve Type Wafer Type, Concentric (Centric) Butterfly Valve
    Nominal Size (DN) DN50 ~ DN600 (2″ ~ 24″)
    Nominal Pressure (PN) PN10 / PN16 / Class 150LB
    Structure Style Concentric (Center line) Design
    Connection Type Wafer-Type (Fits between EN 1092-2, ASME B16.5, or JIS flanges)
    Temperature Range -29°C ~ +180°C (-20°F ~ +356°F)
    Applicable Media Acids, Alkalis, Chemical solutions, Potable Water, Food products, Pharmaceutical fluids
    Design Standard GB/T 12238 / API 609 / EN 593
    Face-to-Face Dimension ISO 5752 Series 20 (Short pattern) / API 609 Category A
    Pressure Testing ISO 5208 / API 598
    Operation Lever Handle (DN50-150), Worm Gear (DN200-600), Electric Actuator, Pneumatic Actuator
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  • Double Flanged Butterfly Valve(DI/Al-bronze/EPDM)
    Double Flanged Butterfly Valve(DI/Al-bronze/EPDM)
    Nominal Diameter DN50 ~ DN600
    Pressure Rating PN10/16 (Class 150) · PN25 (Optional)
    Temperature Range -30°C to +120°C (EPDM Seat)
    Leakage Class ANSI Class VI (ISO 5208 Grade A)
    Connection Type Double Flanged (RF Facing per ASME B16.5)
    Actuator Mounting ISO 5211 F05-F14
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  • Burried Coal Tar Coated U section High Performance Butterfly Valve 60″
    Burried Coal Tar Coated U section High Performance Butterfly Valve 60″
    Valve Type Double Eccentric Butterfly Valve (High Performance)
    Application Buried Service / Underground Installation
    Size 60 inches (DN 1500)
    Pressure Rating Class 150LB (200psi)
    Connection Type Flanged Ends (ASME B16.47 Series A or B as required)
    Operation Electric Actuator with Extended Stem for buried service
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  • BS5155 Rubber Seated Double Offset Butterfly Valve
    BS5155 Rubber Seated Double Offset Butterfly Valve
    Valve Type Double Eccentric (Double Offset) Butterfly Valve
    Design Standard API 609 / BS5155 / ASME B16.34 / EN 593 / GB/T 12238
    Face-to-Face API 609 / ASME B16.10 / EN 558 Series 13/14/16 / BS5155
    Flange Drilling ASME B16.5 / ASME B16.47 / EN 1092-2 / GB/T 9115
    Inspection & Test API 598 / ISO 5208 / EN 12266-1
    Pressure Rating Class 150 / 300 / PN6 / PN10 / PN16 / PN25
    Size Range 2″ – 48″ (DN50 – DN1200)
    Temperature Range -29°C to +200°C (Depending on seat material)
    End Connection Wafer Type / Lug Type / Flanged Type
    Operation Lever / Gearbox / Pneumatic Actuator / Electric Actuator
    Mounting Flange ISO 5211 (For direct actuator mounting)
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  • 6″-600LB High Temp. Triple Offset Butterfly Valve
    6″-600LB High Temp. Triple Offset Butterfly Valve
    Valve Type Triple Offset Hard-Seated Butterfly Valve (with Cooling Fins)
    Nominal Diameter (DN) DN50 ~ DN1200
    Nominal Pressure (PN) PN10 ~ PN100 (or Class 150 ~ 600)
    Applicable Medium Steam, High-temperature oil, High-temperature flue gas, Thermal fluid, etc.
    Applicable Temperature With cooling fins: Up to 650°C
    Connection Type Wafer type / Flanged / Butt-welded
    Operation Type Handwheel with gearbox / Pneumatic / Electric / Electro-hydraulic
    Function Mode On-Off / Control
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  • B148 C95800 Aluminum Bronze Lugged 6″ Butterfly Valve 150LB
    B148 C95800 Aluminum Bronze Lugged 6″ Butterfly Valve 150LB
    • Body & Disc: C95800 Aluminum Bronze (superior seawater/corrosion resistance)
    • Stem: Monel K500 (exceptional strength & chloride stress corrosion cracking resistance)
    • Seat: Viton® (excellent chemical/weather resistance, -20°C to 120°C)
    • Operation: Lever or Gear Actuator (selectable for manual/process control)
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  • Loose-Liner Butterfly Valve
    Valvola a farfalla a manicotto libero
    DIMENSIONE: 8″~14″
    VALUTAZIONE: 200WOG
    CORPO: GHISA SFEROIDALE ASTM A536
    DISCO: GHISA SFEROIDALE ASTM A536
    STELO: SS416 SENZA PERNO
    SEDILE: NBR
    ATTUAZIONE: RIDUTTORE
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  • CPVC Wafer & Lug Butterfly Valve
    Valvola a farfalla Wafer & Lug in CPVC
    Dimensioni: 4" e 6" (DN100 e DN150)
    Pressione nominale: 150 libbre (PN16)
    Materiali principali:
    Corpo e disco: CPVC (resistente alla corrosione, design leggero)
    Stelo: acciaio inossidabile 304 (alta resistenza, eccellente resistenza alla corrosione)
    Sedile: EPDM (tenuta superiore, resistente agli agenti chimici)
    Operatore: Leva (funzionamento manuale rapido e semplice)
    Tipi di connessione:
    Tipo wafer – Design compatto per l'installazione di flange standard
    Tipo di aletta: consente la rimozione da un solo lato per una facile manutenzione
    Monoflange – Adattamento flessibile a più standard di flangia
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A butterfly valve is a type of quarter-turn valve used to regulate, isolate, or start and stop fluid flow in a piping system. It consists of a circular disc or plate mounted on a rotating shaft. When the handle or actuator turns the shaft 90 degrees, the disc moves from a fully closed to a fully open position, allowing flow through the valve. The disc remains in the flow path even when open, which means there is always a slight pressure drop. Butterfly valves are known for their compact design, fast operation, and cost-effectiveness, especially in large-diameter pipelines. They come in various types, such as wafer, lug, and double or triple offset styles, depending on the pressure and sealing requirements. These valves are widely used in industries such as water treatment, HVAC, chemical processing, oil and gas, and food and beverage, due to their reliability, low maintenance, and easy installation.

What Are The Advantages Of Using Butterfly Valves Over Other Valve Types?

Butterfly valves offer several advantages that make them a preferred choice in many industrial and commercial applications. First, their lightweight and compact structure requires less space and support compared to gate or globe valves, which is especially beneficial for high-diameter pipelines. They provide quick shutoff and throttling capabilities with just a quarter-turn, resulting in faster and easier operation, whether manual or automated. Butterfly valves are generally more cost-effective in both initial investment and maintenance, as they have fewer moving parts and simple construction. Additionally, they can handle a wide range of fluids, including gases, liquids, and slurries. With advancements in sealing technologies, modern butterfly valves can achieve tight shutoff, even in high-pressure and high-temperature systems. Their versatility in materials—such as stainless steel, cast iron, and PVC—makes them suitable for corrosive or sanitary environments, depending on the application needs.

Butterfly Valves FAQ

  • 1.Are butterfly valves suitable for high-pressure systems?

    Yes, triple offset butterfly valves are designed for high-pressure and high-temperature conditions.

  • 2.Can butterfly valves be used for throttling?

    Yes, they are often used for throttling and flow regulation.

  • 3.What materials are butterfly valves made from?

    Common materials include stainless steel, cast iron, ductile iron, PVC, and carbon steel.

  • 4.Are butterfly valves bidirectional?

    Most butterfly valves are bidirectional, but performance may vary by type and design.

  • 5.How long do butterfly valves last?

    With proper material selection and maintenance, they can last many years in industrial use.

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