Lug High Performance Butterfly Valves

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







    Description

    Lug 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.
    Lug design makes the valve convenient for connection between flanges and well used in end of pipe.

    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

    Lug 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

    ConnectionLug
    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)

    Lug High Performance Butterfly Valve

    CLASS 150LB

    SIZEABCDD1ETop FlangeGLWT(kg)
    DNINCHClass150
    502″1267913.59212311F0545435
    652 1/2″1268713.510515011F0545466
    803″14510017.513015611F0772488
    1004″17012417.515721814F07915410
    1255″18514417.518624114F071145715
    1506″20315018.521626417F101455720
    2008″23918624.526932522F101926423
    25010″27522624.532439422F102407142
    30012″3072513038047127F122858160
    35014″3372943041652027F1232892100
    40016″3683203047658527F14373102155
    45018″4063413953462536F16422114200
    50020″4423834958869346F16470127270
    60024″4934424969280746F25570154420

    CLASS 300LB

    SIZEABCDD1ETop FlangeGLWT(kg)
    DNINCHClass300
    502″1267913.59215511F0545436
    652 1/2″1268713.510517811F0545467
    803″14510017.513019911F07724810
    1004″17012417.515724314F07915412
    1255″18514417.518626514F071145718
    1506″20315018.521631217F101455725
    2008″25720424.526937022F101927340
    25010″2882383032443827F122408365
    30012″3302683038051227F1228592100
    35014″3372943941657936F14320117200
    40016″3683204947664346F16363133260
    45018″4063414953470546F16400149380
    50020″4423834958876946F25450159470
    60024″5004425869290855F25550181780