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China Full Bore Ball Valve manufacturer
Wenzhou Goldtop Valve Co.LTD

Gold top valve  located in Oubei Town, Wenzhou, China,where can make all kinds of precision balls,including top entry,metal seat and V type balls.On this base,our products range of floating,trunnion,Gate globe check valve ,butterfly valve ,etc.Surely we can design them by customer's special requirements.

Home ProductsAPI609 Butterfly Valve

PTFE Lined Centric Butterfly Valve Self Lubricated Shaft Bear ATEX Wafer Type Butterfly Valve

PTFE Lined Centric Butterfly Valve Self Lubricated Shaft Bear ATEX Wafer Type Butterfly Valve

    • PTFE Lined Centric Butterfly Valve Self Lubricated Shaft Bear ATEX Wafer Type Butterfly Valve
    • PTFE Lined Centric Butterfly Valve Self Lubricated Shaft Bear ATEX Wafer Type Butterfly Valve
  • PTFE Lined Centric Butterfly Valve Self Lubricated Shaft Bear ATEX Wafer Type Butterfly Valve

    Product Details:

    Place of Origin: 中国
    Brand Name: GOLD TOP
    Certification: API609

    Payment & Shipping Terms:

    Minimum Order Quantity: 1pcs
    Price: Negotiation
    Packaging Details: Plywood Case
    Delivery Time: 30days
    Supply Ability: 100+pcs+30 days
    Contact Now
    Detailed Product Description
    Design: API609 Materials: Carbon / Stainless / Ductile Cast Iron
    Test: API598 Type: Centric Wafer
    Working Temperature: 20°C ~ + 500°C Operating: Gear / Electric / Pneumatic
    High Light:

    concentric butterfly valve

    ,

    metal to metal butterfly valve

    Centric API609 Butterfly Valve PTFE Lined Self Lubricated Shaft Bear ATEX Wafer Type Butterfly Valve

     

     

    Centric Butterfly Valves

     

    PTFE lined butterfly valve model IVTFE provides an optimum solution to the corrosion problems encountered by the chemical and process industries with conventional butterfly valves. The PTFE seat liner covers the entire wetted surface of the body and extends around the flange faces thus eliminating the possibility of any media contact with the body.

    The fully circular backup elastomer and live loaded disc shoulder sealing ensures bubble tight closing of the valve with zero shaft leakageThe valve is adaptable for ON / OFF as well as control duty and can be fitted with actuators and accessories as required to meet the specific duty conditions.

    The body is designed to fit between all international flange standards.

     
    Features
     
    1. Full PN 10 pressure rating for the entire range of valve sizes from 50 NB to 300 NB.

    2. Bi-directional valve with sealing capability to hold rated shut off pressure in either direction.

    3. Circularly moulded back up elastomer provides uniform contact pressure over the entire seat without losing shaft bore shape, ensuring bubble tight closure every time.

    4. Unique triple sealing system for shaft sealing, eliminates any fugitive emission or secondary leakage.

    5. Self lubricated shaft bearings (PTFE coated stainless steel) for both drive end and non-drive end shaft ensures minimum bearing friction torque.

    6. Live loaded disc shoulder sealing arrangement through pusher and disc springs in both top and bottom shaft bores, acting on PTFE liner ensures leak free mechanical stem seal.

    7. Back up elastomer standardised in Viton to ensure excellent corrosion protection and maximum temperature resistance against media fumes and higher temperature.

    8. Disc springs and fasteners standardised on corrosion resistant stainless steel to ensure long service.

    A choice of exotic metallurgy for the disc, to meet any type of aggressive media.

    9. Choice of liner materials of virgin PTFE or filled PTFE.

    10. Low operating torque enables selection of smaller size actuators.

    11. Perfect adaptability for conversion from manual to actuated operation due to standardised top flange.

     

    ​​Conformity to codes and standards:

    1.Complies with the requirements of European Pressure Equipment Directive PED 97 / 23 / EC

    2.Complies with the requirements of ATEX 94/9/EC

     

    General design & manufacturing

    API 609 category A

    Valve face to face dimensions

    ISO 5752 Tab 5 & API 609 category A

    Top flange drilling

    ISO 5211 part II

    Valve inspection & testing

    API 598 / ANSI / FCI - 70-2

    Flange standard conformity

    ANSI 150, DIN PN 10 / PN 16

     
    Technical Specifications 1
    Feature
    Value
    Construction type

    Centric disc design butterfly valve with PTFE lined body

    Body type & end connection

    Wafer short, 2 piece body

    Seat type

    PTFE / GFT with viton backup ring

    Size range

    50 NB to 300 NB

    Pressure rating

    PN 10 (max)

    Operating temperature range

    -25C to 200C (Depending on MOC)

    Seat leakage

    Tight shut off (better than class VI as per ANSI / FCI 70-2)

    Operation

    Handlever for sizes up to 200 NB
    Worm gearboxes for 50 NB to 300 NB
    Pneumatic / Electric actuator operation - optional

    Available material of construction (MOC)

    Body/Disc

    SGI / WCB / CF8 / CF8M / AB2 / Duplex / Super Duplex (1A-6A) / Hastelloy
    Disc also available in Titanium

    Seat

    PTFE

    Shaft

    AISI 410 / SS 316 SH/ Monel/ UNS32760/ Titanium/ Hastelloy

    Available material of construction (MOC)

    Body/Disc

    WCB / LCB/ CF8 / CF8M

    Shaft

    AISI 410 / SS 316 SH
    Other materials available on request

     

    Technical Specifications 2:

    Nominal Size

    DN(mm)

    50~2000

    Nominal Pressure

    PN(MPa)

    0.6

    1

    1.6

    Test Pressure

    Body

    0.9

    1.5

    2.4

    Seal

    0.66

    1.1

    1.76

    Air

    0.6

    0.6

    0.6

    Medium

    Air, Water, sewage, Stem, Gas, Oil..etc

    Parts Name

    Material

    Body

    Cast Iron, Nodular Iron, Cast Steel, Stainless Steel, Bronze

    Disc

    Nodular Iron with Galv, Cast Steel, Stainless Steel, Bronze

    Seal Ring

    Rubber, PTFE

    Stem

    2Cr13,Stainless Steel

    Packing

    O Ring, Flexible Graphite

     

    Seal Material

    Seal Material

    CR

    NBR

    EPDM

    PTFE

    SI

    VITON

    NR

    PA

    Max Temperature

    82℃

    93℃

    150℃

    232℃

    250℃

    204℃

    85℃

    93℃

    Min Temperature

    -40℃

    -40℃

    -40℃

    -268℃

    -70℃

    -23℃

    -20℃

    -73℃

    Suitable Service Temperature

    0~+80℃

    -20~+82℃

    -40~+125℃

    -30~+150℃

    -70~+150℃

    -23~+150℃

    -20~+85℃

    -

    PTFE Lined Centric Butterfly Valve Self Lubricated Shaft Bear ATEX Wafer Type Butterfly Valve 0

     

     

    Contact Details
    Wenzhou Goldtop Valve Co.LTD

    Contact Person: sales

    Tel: +8613758447235

    Send your inquiry directly to us
    Wenzhou Goldtop Valve Co.LTD
    Tel:86-577-86621729
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