Wafer high performance butterfly valve

Body:  ASTM A536 65-45-12, WCB, CF8M
Disc:  CF8,CF8M,CF3M
Seat:  RPTFE,SS316+RPTFE,SS316
Connection:  Wafer
Size:  3″-24″
Pressure:  Class150,Class300
Flange standard: ASME B16.5 Class150,Class300; EN1092 PN16, PN25, PN40







    Description

    Wafer high performance butterfly valve provides a cost-effective solution for a wide range of applications where bubble-tight shut-off is required. Utilizing an eccentric disc and offset shaft, the design incorporates the flexible-lip sealing system into a lightweight, compact body. The result is that in many cases the valve can replace globe valve and gate valve yet easier operating, longer lasting and lower cost.

    Significant performance makes the valve widely used in many applications such as Airport refueling, Hydrocarbon processing, HVAC, Air treatment, Chemical processing, Purified gas, Steam and vacuum services, Potable water, Powder and pulp processing, etc.Wafer design makes the valve convenient for connection between flanges and save length in pipe line.

    FEATURES

    • One-piece stem design with ISO 5211 square drive
    • ISO 5211 direct mounting flange on the valve body
    • Easy-adjust gland packing accessible with actuator mounted in place
    • Belleville washers on the gland nut offer reliable primary sealing between shaft and packing
    • Retaining ring for both equably pressing on packing and stem blowout proof
    • Multiply rows of RPTFE chevron for soft seat valve and Graphite chevron for fire safe and metallic seat
    • Extended neck for pipe insulation
    • Self-energized seat resulting in longer life and reduced maintenance·Pin-less shaft to disc connection makes the valve convenient for parts replacement and reliable even under corrosion
    • Seat retainer supports the seat and allows for easy changeout
    • Double offset disc reducing the valve torque
    • Alloy harden disc surface for metal seat increases the sealing life time
    • Integral disc stop prevent disc from over travel
    • Soft seat, fire safe seat and metallic seat are replaceable each other
    • PTFE lined SS316 bearing support stem and increase service life
    • Thrust ring for anti-blowout and anti-static

    Wafer High Performance Butterfly Valves

    PARTS LIST AND MATERIAL SPECIFICATION

    No.Part nameMaterial
    1BodyWCBCF8M
    2DiscCF8*CF8M*
    3SeatRPTFE,SS316+RPTFE,SS316
    4Shaft17-4 PHSS,1.4462
    5Packing glandCF8
    6Bottom coverSame as body
    7Cover sealGraphite
    8Thrust washerSS316
    9Seat retainerWCBCF8M
    10GasketRPTFE, Graphite
    11Retaining ringSS304
    12PackingRPTFE, Graphite
    13Packing ringSS316
    14BearingSS316+PTFE
    15Thrust bearingSS316
    16KeySS316
    17BoltSS316
    18BoltSS304
    19BoltSS304
    20NutSS304
    21Belleville washerSS304
    *Supersonic spray welding of different materials on sealing surface of metal seating valve according to requirements

    TECHNICAL DATA

    ConnectionWafer
    Size3″-24″
    PressureClass150,Class300
    Flange standardASME B16.5 Class150,Class300; EN1092 PN16, PN25, PN40
    Face to faceAPI 609 Category B valve Wafer
    Pressure testAPI 598
    TemperaturePTFE seat -29°C to +200°C,metal seat -29°C to +400°C
    OperatorLever,Gear box,Pneumatic actuator,Electric actuator

    DIMENSIONS (mm)

    CLASS 150LB

    SIZEABCDETop FlangeGLWT(kg)
    DNINCHClass150
    502″1267913.59211F0545433
    652 1/2″1268713.510511F0545464
    803″14510017.513011F0772485
    1004″17012417.515714F0791546
    1255″18514417.518614F07114579
    1506″20315018.521617F101455712
    2008″23918624.526922F101926419
    25010″27522624.532422F102407133
    30012″3072513038027F122858142
    35014″3372943041627F123289261
    40016″3683203047627F1437310288
    45018″4063413953436F16422114135
    50020″4423834958846F16470127173
    60024″4934424969246F25570154272

     

    CLASS 300LB

    SIZEABCDETop FlangeGLWT(kg)
    DNINCHClass300
    502″1267913.59211F0545433
    652 1/2″1268713.510511F0545464
    803″14510017.513011F0772485
    1004″17012417.515714F0791546
    1255″18514417.518614F07114579
    1506″20315018.521617F101455712
    2008″25720424.526922F101927323
    25010″2882383032427F122408339
    30012″3302683038027F122859255
    35014″3372943941636F1432011779
    40016″3683204947646F16363133103
    45018″4063414953446F16400149170
    50020″4423834958846F25450159225
    60024″5004425869255F25550181338