Vulcanized Rubber Lined Lug Butterfly Valve
Features
Non Replaceable Seat |
No tearing deformation, long life |
Lug Type |
Threaded |
Seat Type |
Vulcanized rubber lined |
Operation Cycles |
Over 100,000 times |
Leakage Level |
Bubbles-tight sealing with no leakage |
Low Torque |
Operation easy and flexible |
Bidirectional Sealing |
Any installation position |
Low Flow Resistance |
Improve fluid efficiency and reduce energy consumption |
Sealing Materials |
Rich variety over 5 types |
Coating Grade |
Conventional and special conditions of C1-C5 & CX |
Application |
Vacuum services, high fluid velocity, power plant, marine... |
Certificates |
ISO9001, CE, WRAS, ACS |
Specifications
Design Standard |
EN593 API609 |
Top Flange Standard |
ISO 5211 |
End Flange Standard |
EN1092 PN10/16, ANSI 125LB/150LB, JIS 10K, AS 2129 |
Face to Face Dimension |
API 609, EN558-1 Series 20, BS5155, DIN3202 K1 |
Testing Standard |
API 598, EN12266 |
Temperature |
-20℃~120℃ (depends on the sealing material) |
Body Material |
Cast Iron, Ductile Iron |
Disc Material |
Ductile Iron, Stainless Steel, Aluminum Bronze, Duplex SS |
Shaft Material |
Stainless Steel, Aluminum Bronze, Inconel |
Seat Materia |
EPDM, NBR, WRAS EPDM, VITON, Silicone |
Operator |
Lever, Gearbox, Pneumatic, Electric Actuator |
Dimension

Size |
D |
□T |
PN10 |
PN16 |
ANSI 150LB |
Top |
|||
Ф D 2 |
n - Ф d |
Ф D 2 |
n - Ф d |
Ф D 2 |
n - Ф d |
||||
DN50 |
43 |
9*9 |
125 |
4-19 |
125 |
4-19 |
120.6 |
4-19 |
F05 |
DN65 |
46 |
9*9 |
145 |
4-19 |
145 |
4-19 |
139.7 |
4-19 |
F05 |
DN80 |
46 |
9*9 |
160 |
4-19 |
160 |
4-19 |
152.4 |
4-19 |
F05 |
DN100 |
52 |
11*11 |
180 |
4-19 |
180 |
4-19 |
190.5 |
4-19 |
F07 |
DN125 |
56 |
14*14 |
210 |
4-19 |
210 |
4-19 |
215.9 |
4-22.4 |
F07 |
DN150 |
56 |
14*14 |
240 |
4-23 |
240 |
4-23 |
241.3 |
4-22.4 |
F07 |
DN200 |
60 |
17*17 |
295 |
4-23 |
295 |
4-23 |
298.4 |
4-22.4 |
F10 |
DN250 |
68 |
19*19 |
350 |
4-23 |
355 |
4-28 |
361.9 |
4-25.4 |
F10 |
DN300 |
78 |
22*22 |
400 |
4-23 |
410 |
4-28 |
431.8 |
4-25.4 |
F10 |
DN350 |
78 |
22*22 |
460 |
4-23 |
470 |
4-28 |
476.2 |
4-28.4 |
F10 |
DN400 |
102 |
27*27 |
515 |
4-28 |
525 |
4-31 |
539.7 |
4-28.4 |
F14 |
DN450 |
114 |
27*27 |
565 |
4-28 |
585 |
4-31 |
577.8 |
4-31.8 |
F14 |
DN500 |
127 |
36*36 |
620 |
4-28 |
650 |
4-34 |
635 |
4-31.8 |
F14 |
The vulcanized lined lug butterfly valve features a layer of vulcanized rubber coating on the valve body, providing high elasticity, wear resistance, temperature tolerance, and corrosion resistance. The vulcanized lined seat of lug butterfly valve ensures excellent sealing due to strong rubber-metal adhesion and flexibility that accommodates minor deformations. With outstanding durability against erosion and impact, it offers a long service life. This cast iron lug butterfly valve is widely used in industrial applications for regulating and cutting off various media, combining operational simplicity with low maintenance costs.












