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