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Cast Iron/Brass/Stainless Steel Lug Style Flanged Butterfly Valve

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Cast Iron/Brass/Stainless Steel Lug Style Flanged Butterfly Valve

Country/Region china

Company hjfitting limited

Categories Flanged Butterfly Valve

Update 2017-08-01 10:25:49

ICP License Issued by the Chinese Ministry

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Cast Iron/Brass/Stainless Steel Lug Style Flanged Butterfly Valve

Flange Butterfly Valve 1.Main Parts and Materials 2.Dimensions
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  • Description

  • Butterfly Valve Types

    Concentric butterfly valves this type of valve has a resilient rubber seat with a metal disc.

    Doubly-eccentric butterfly valves (high-performance butterfly valves or double-offset butterfly valves) different type of materials is used for seat and disc.

    Triply-eccentric butterfly valves (triple-offset butterfly valves) the seats are either laminated or solid metal seat design.

    Wafer-style butterfly valves

    The wafer style butterfly valve is designed to maintain a seal against bi-directional pressure differential to prevent any backflow in systems designed for unidirectional flow. It accomplishes this with a tightly fitting seal; i.e., gasket, o-ring, precision machined, and a flat valve face on the upstream and downstream sides of the valve.

    Lug-style butterfly valve

    Lug-style valves have threaded inserts at both sides of the valve body. This allows them to be installed into a system using two sets of bolts and no nuts. The valve is installed between two flanges using a separate set of bolts for each flange. This setup permits either side of the piping system to be disconnected without disturbing the other side.

    A lug-style butterfly valve used in dead end service generally has a reduced pressure rating. For example, a lug-style butterfly valve mounted between two flanges has a 1,000 kPa (150 psi) pressure rating. The same valve mounted with one flange, in dead end service, has a 520 kPa (75 psi) rating. Lugged valves are extremely resistant to chemicals and solvents and can handle temperatures up to 200 °C, which makes it a versatile solution.

    Usage in industry

    In the pharmaceutical, chemical and food industry a butterfly valve is used to interrupt product flow (solid, liquid, gas) within the process. The valves used in these industries are usually manufactured according cGMP guidelines (current good manufacturing practise). Butterfly valves generally replaced ball valves in many industries particularly petroleum due to lower cost and ease of installation, but pipelines containing butterfly valves cannot be 'pigged' for cleaning.

    Flange Butterfly Valve

    1.Main Parts and Materials

    Material

    Part

    Material

    Part

    Material

    Body

    DI

    Washer

    Carbon Steel

    Disc

    DI with rubber

    Sleve

    Stainless Steel

    Bonnet

    DI

    Bushing

    Brass

    Spring

    65Mn

    Guiding Stem

    Stainless Steel

    2.Dimensions

    Size

    PN10/16/125LB/10K

    L

    D

    D1

    N-

    PN10

    PN16

    150LB

    10K

    PN10

    PN16

    150LB

    10K

    PN10

    PN16

    150LB

    10K

    40

    50

    108

    165

    165

    152

    155

    125

    125

    120.5

    120

    4-18

    4-18

    4-19


Product Tags:

flange butterfly valve pn10

      

double flanged butterfly valve

      

three piece flange butterfly valve

      
China Cast Iron/Brass/Stainless Steel Lug Style Flanged Butterfly Valve

Cast Iron/Brass/Stainless Steel Lug Style Flanged Butterfly Valve Images

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