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Wafer Type High Performance Butterfly Valve Seal Ring Blue Color 2 - 60 Inch

Categories Metal Seated Butterfly Valve
Brand Name: Tengs Valve
Model Number: D73H
Certification: ISO, CE
Place of Origin: China
MOQ: 1 Pc
Price: Negotiable
Payment Terms: L/C, T/T
Supply Ability: 300 Pcs
Delivery Time: 30 Days
Packaging Details: Seaworthy Plywoods
Body Material: Cast Steel: Carbon Steel, Stainless Steel
Trim: 13Cr, SS304, SS316, Duplex Stainless Steel
Size: 2in - 60in
Pressure Rating: Class 150LB - 300LB - 600LB
Actuator: Manual, Gear Operated, Pheumatic, Electric Actuator
Connection Ends: Wafer Type
Body Structure: High Performance, Three - Eccentric
Other: OEM available
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    Wafer Type High Performance Butterfly Valve Seal Ring Blue Color 2 - 60 Inch

    Cast Steel Wafer Type Metal Seated Butterfly Valve Api609 High Performance BFV D73H


    Description

    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.


    Quick Details

    1. Valve Type: Wafer Type Butterfly Valve Metal Seated

    2. Standard: API609

    3. Pressure rating: Class 150LB -300LB - 600LB

    4. Size: 2” - 60"

    5. Body materials: Carbon steel, Stainless steel

    6. Disc: Carbon Steel (WCB), Stainless Steel (CF8 / CF8M)

    7. Stem material: Stainless Steel 13Cr, F304 / F316, 17 -4PH

    8. Actuator: Lever, Worm gear, Pneumatic actuator etc


    Features

    1. The Seal Principle of Hard Seal Butterfly Valve Triple Offset

    The Triple Offset Butterfly Valve provides a bi-directional bubble tight shut-off.This geometry ensures that the disc seal contacts the body seat only at the final shut-off position without rubbing or galling, providing a torque generated resilient seal with sufficient “wedging” to ensure auniform seal contact.


    Triple Offset Butterfly Valve Geometry

    2. The Triple Offset Geometry
    OFFSET 1 The shaft is offset behind the seat axis to allow complete sealing contact around the entire seat

    OFFSET2 The shaft centerline is offset from the pipe and valve which provides interference free opening and closing of the valve

    0FFSET3 The seat cone axis is offset from the shaft centerline to eliminate friction during closing and opening and to achieve uniform compressive sealing around the entire seat.


    3. Friction Free Sealing for Long Cycle Life
    (1) Seat is Cr13 Metal alloy or hardfaced with Stellite as standard.

    (2) The gasket is spiral wound SS/Graphite for zero leakage.

    (3) Seat ring forces are generated by the torque during closing uniformly around the entire circumference. The resilient seal fleses and energizes, assuming the shape of the seat. The compression forces equally distributed around the perimeter provide a tight bi-directional shut off.
    The resiliency of the seal allows the valve body and disc to contract or expand, without the risk of jamming due to temperature fluctuations. It is self-adjusting.


    Standards

    Design and Manufacture; API 609. MSS SP-67, MSS SP-68
    Inspection and Test: API S98

    End flange dimension: ASME B16 5 (NPS≤24). ASME B16 47 B series
    BW end dimension: ASME B16.25

    Face to face and end to end; API 609

    Pressure-temperature ratings: ASMF B16.34


    Application

    Hard Seal (Metal Seated)Butterfly Valve triple offset series are used in such fields as metallurgy, light industry, electric power, petrochemistry, coal gas channel etc.


    Description


    Triple Offset Butterfly Valve Drawing


    1. Materials List (Triple Offset Butterfly Valve)


    No.Part NameMaterials
    1BodyASTM A216 WCBASTM A351 CF8ASTM A351 CF3ASTM A351 CF8MASTM A351 CF3M
    2PinASTMA29 1035 / A276 304ASTM A276 304ASTM A276 304LASTM A276 316ASTM A276 316L
    3Stem420 / 304 / 316304304L316316L
    4DiscWCB / CF8 / CF8MA351 CF8A351 CF3A351 CF8MA351 CF3M
    5Seal Ring304/316+Graphife / PTFE304+Grapnite / PTFE304L+Graphite / PTFE316+Graphite / PTFE316L +Graphite / PTFE
    6Retainer FlangeA105 / A182 F304 / F316F304A182 F304LA182 F316A182 F316L
    7BoltB7 / B 8/ B8MB8B8B8MB8M
    8BoltB7B8B8B8MB8M
    9CoverA105A182 F304A182 F304LA182 F316A182 F316L
    10GasketGraphiteGraphiteGraphiteGraphiteGraphite
    11BushingLuberized bronze304 Nitriding304L Nitriding316 Nitriding316L Nitriding
    12Bushing304 Nitriding
    13Packing SeatA105/304304304L316316L
    14PackingGraphite
    16Packing CoverWCBCF8CF3CF8MCF3M
    17NutA194 2HA194 8A194 8A194 8MA194 8M
    18BoltA193 B7A193 B8A193 B8A193 B8MA193 B8M
    19YokeWCBWCB Galvanization, CF8
    Drive ActuatorHandle, Electric actuator, Worm gear, Pheumatic actuaror

    2. Main Connection Dimensions

    ClassSize ClassSize 
    NPSDNLNPSDNL
    150Lb25043300Lb25043
    21/2654621/26546
    3804838048
    410054410054
    512556615059
    615057820073
    8200641025083
    10250711230092
    123008114350117
    143509216400133
    1640010218450149
    1845011420500159
    2050012724600181
    24600154600Lb25043
    2665015421/26546
    2870016538054
    30750165410064
    32800190615078
    36900200/2038200102
    38950200/20310250117
    40100021612300140
    421050216/25114350155
    441100216/25116400178
    481200254/27618450200
    52130025420500216
    56140027924600232
    601500279
    Buy Wafer Type High Performance Butterfly Valve Seal Ring Blue Color 2 - 60 Inch at wholesale prices
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