Concentric Butterfly Valve

Concentric Butterfly Valve

Flowsar concentric butterfly valves are widely used in various industrial fluid control applications. The fully rubber-encapsulated body is suitable for various corrosive service conditions. Compared with conventional gate, globe and ball valves, the weight is much lower. Due to the rapid development of artificial rubbers it is possible to use this valve within the modern chemical industry. Flowsar butterfly valves with concentric type design comply to API609 standard.

CHARACTERISTICS SPECIFICATIONS
Size 2” up to 88“ (DN 50 up to DN 2200)
Pressure Rating ASME 150# to 900#
Body Material Carbon Steels, Low Temperature Carbon Steel, Martensitic Steels, Austenitic Stainless Steel, Duplex Stainless Steels, Super Duplex Stainless Steels, Nickel Alloys, Nickel Aluminum Bronze, Hastelloy, Inconnel, Titanium Alloy & Carbon Steel with Internal Corrosion Resistant Alloy (CRA) Overlay

 

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    Category: Product ID: 1382

    More Info

    CHARACTERISTICS SPECIFICATIONS
    Design Standard API 609 MESC SPE 77 / 134, BS 5353 BSEN593, ANSI AWWA C504-94
    Pressure / Temperature Rating ASME B 16.34
    Test (Inspection) Standard API 598, API 6D, MESC 77/134, ISO 5208
    Construction Details Single / Two / Three Piece Design / Side Entry / Trunnion / Block & Bleed / Soft and Metal Seated
    Operator / Actuator Lever, Gear, Actuator (Pneumatic, Hydraulic, Electro-Hydraulic and Electric Motorised)

    Butterfly Valves are available in four different types’ versions :

    • Double Offset
    • Triple Offset
    • Centre Disc
    • Extended Stem

    Cryogenic Service

    Almost all Butterfly Valve can be designed in a special version suitable for cryogenic service. In this case, all the materials and technical features are designed to withstand minimum design temperature required by the Customer. If required by the customer, specific Cryogenic Tests are performed to verify the behaviour of valves sealing capability, emissions vs the ambient.

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