Lug butterfly valve

Body:         ASTM A536 65-45-12, WCB, CF8M
Disc:          ASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462
Seat:          EPDM, NBR, FPM
Stem:         SS420, SS431
Body style:       FLug
Nominal diameter:            2″ – 80″ (DN50mm – DN2000mm)
Top flange:                          ISO5211
Operating pressure:          16bar for DN50-DN300, 10bar for DN350-DN2200
Flange accommodation:   EN 1092 PN 6/PN10/PN16,ASME Class,JIS 5K/10K







Description

Llug concentric butterfly valve features a cartridge type seat, streamlined disc and strong stem-to-disc connection for easy use in many industrial applications such as food and beverage, pulp and paper, chemical, mining, water treatment, power plants, etc. Full rated unidirectional dead-end service is achieved by a lip designed in the lug body.

FEATURES

1,ISO5211 top flange together with stem square suitable for direct mounting of actuators
2,Stem anti-blowout design keep safety in field use
3,Dirtscraper prevents moisture penetrating into the shaft area
4,Suitable for high pressure and full vacuum service due to the use of a cartridge seat design
5,Full rated unidirectional dead-end service is achieved by a lip designed in the lug body
6,No exposed pins or bolts for stem-to-disc connection
7,No need for flange gaskets
8,No risk of damage to the valve during installation in closed position
9,Bubble-tight shut of at full pressure rating
10,Large flow capacity and enough strength because of streamline disc design
11,Plug with O-ring sealing eliminates any leakage from the stem

lug butterfly valve Parts

PARTS LIST AND MATERIAL SPECIFICATION

NO.Part nameMaterial
1BodyASTM A536 65-45-12, WCB, CF8M
2DiscASTM A536 65-45-12 Nylon coated, CF8, CF8M, 2507, 1.4462
3SeatEPDM, NBR, FPM
4StemSS420, SS431
5Lower StemSS420, SS431
6RetainerNylon for DN50-DN300, SS304 for DN350-DN2000
7BearingRPTFE with Graphite on I.D.
8Weather sealNBR
9Weather sealNBR
10PlugSteel galvanized for DN50-DN300, Cover plate for
DN350-DN2000 material same as body with SS304 bolts
11ScrewSS304

TECHNICAL DATA

Body styleFLug
Nominal diameter2″ – 80″ (DN50mm – DN2000mm)
Top flangeISO5211
Operating pressure16bar for DN50-DN300, 10bar for DN350-DN2200
Temperature range-20 °C to + 140 °C (depending on pressure, medium and material)
Flange accommodationEN 1092 PN 6/PN10/PN16
ASME Class 150
AS 4087 PN10/ PN16
JIS 5K/10K
ApplicationsPotable Water, Wastewater, Seawater, HVAC
OperationHand lever, gear box, pneumatic actuator, electric actuator

DIMENSIONS (mm)

lug butterfly valve size

SIZEABCDEFdGHJLWT(kg)
DNINCH
502″1267813.51179508703134432.8
652 1/2″1348413.51319508704536463.7
803″1389213.51769508706436465.1
1004″16711413.5206117010909140526.9
1255″18012917.52361470109011044569.3
1506″20314417.525814701090146445610.5
2008″22817924.53211710212125193506017.4
25010″266216253952210212125241576828.1
30012″291247254612210212125292667840
35014″332273305112712514150329627855
40016″3633173058027125141503768410285
45018″39734839630361401817542594114114
50020″425393397003614018175475110127144
60024″498453498234616522210573120154227
70028″6265319092863.12541830067454165342
75030″6605649098463.12541830072754165400
80032″66660190106163.12541830077160190485
90036″722660110117074.72541830083960203605
100040″806728120129083.72982235093960216776
110044″826771140140494.729822350103650255985
120048″9418741501511104.7298223501137622761190
140056″10009401751685139.9356324151351622791380
160064″115510851951930160356324151548653182054
180072″120011701952170174.5406394751703703563075
200080″136313602452345199406394751938754064500

 

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