• Double stem lug butterfly valve
  • Double Stem Lug Butterfly Valve
  • Double Stem Lug Butterfly Valve

Double Stem Lug Butterfly Valve

Features: DN: 2~20"(DN50~DN500)
Nominal pressure: PN10, PN16, Class125
Body Materials: Cast Iron, Ductile Iron, WCB , Stainless Steel, Bronze
Seat Materials: NBR, EPDM, VITON, PTFE
End Connection: Lug
Operate: Manual, Worm gear, Pneumatic, Electric-Motorized
Disc type: With-pin, One stem no-pin, Double stem no-pin

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  • Product parameter
  • Adoptive standards
  • Features
  • Application
  • Inquiry

Product parameter:

DN øD1 øD2 øD3 øD4 øD5 øD6 □T ød N-M A B C D 4- ød1
mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm
40 42.3 110 86 50 65 12.6 9 18 4-M16 212 110 32 32 7
50 52.6 125 100 50 65 12.6 9 18 4-M16 273 161 32 43 7
65 64.3 145 120 50 65 12.6 9 18 4-M16 296 175 32 46 7
80 78.8 160 127 50 65 12.6 9 18 8-M16 308 181 32 46 7
100 104 180 156 70 90 15.77 11 18 8-M16 346 200 32 52 10
125 123.3 210 190 70 90 18.92 14 18 8-M16 372 213 32 56 10
150 155.7 240 212 70 90 18.92 14 22 8-M20 397 226 32 56 10
200 202.4 295 268 102 125 22.1 17 22 8-M20 480 260 45 60 12
250 250.4 350 325 102 125 28.45 19 22 12-M20 540 292 45 68 12
300 301.5 400 376 102 125 31.6 22 22 12-M20 624 337 45 78 12
350 333.3 460 436 102 125 31.6 22 22 16-M20 680 368 45 78 12
400 389.6 515 488 140 175 33.15 24 26 16-M24 763 400 51 102 18
450 440.5 565 539 140 175 37.95 27 26 20-M24 800 422 51 114 18
500 491.6 620 593 140 175 41.12 36 26 20-M24 897 480 57 127 18

Adoptive standards:

Size Range: 2~8"(DN50~DN200)
Pressure: PN10, PN16, Class125
Body Materials: Cast Iron, Ductile Iron, WCB , Stainless Steel, Bronze
Seat Materials: NBR, EPDM, VITON, PTFE
Disc Materials: Ductile Iron, WCB, CF8,CF8M, Al-bronze C958
Stem Materials: SS416, SS304, SS316
End Connection: Lug
Operate: Manual, Worm gear, Pneumatic, Electric-Motorized
Disc type: With-pin, One stem no-pin, Double stem no-pin

Seaworthy packing:
1. Double stem lug butterfly Valve is packed withfoam plastic bag.
2.Put sponge in each floor, 1.1*1.1*0.78m export plywood case;
3.One 20' container can in bulk loaded on 24pcs plywood cases more or less.
4.We can pack according to specific customer requests.

Valve Design: API 609, MSS SP-67
Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1
Pressure Test: API 598
Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16
Top Flange: ISO5211

Features:

1.Single Eccentric Disc-Shaft
2.Anti-Blow Out Stem
3.Bi-Directional
4.Fire safe Design
5.Low Friction Body Seat
6.Zero Leakage

Why Choose Us:
1.We promise no leakage and breakage for valves. Every butterfly valve will test for 2 times test pressure before leave factory. We will replace the valve if there is quality problem within 24 months guarantee period.
2.We obtained ISO9001 quality system certification.We inspect the parts of valve carefully, 48 produce steps, try to supply you ideal valve.
3.We can supply different kinds of materials according to customers' requests,such as DI,cast steel,SS304,SS316 body and disc. EPDM,NBR,PTFE,Viton etc. Enough stock ensure fast delivery.
4.We have more than 150 types body moulds, which include ISO,DIN,ANSI,BS standard.
5.We own full-automatic machine paint line, match high-temperature baking house,which makes smooth paint and good appearance of valve.

Standard Test :
Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.
Seat Test: 1.1 times the working pressure with water.
Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature.
Special Test: On request, any other test can be carried out according to special instruction by client.

Application:

1.Water Treatment Plant ;
2.Drilling Rigs;
3.Paper Industry;
4.Gas Plant;
5.Sugar Industry;
6.Cooling Water Circulation;
7.Breweries;
8.Heating & Air Conditioning;
9.Chemical Industry;
10.Pneumatic Conveyors;
11.Waste Effluent Treatment Plant;
12.Compressed Air.

 

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