Product Features
The stainless steel lug butterfly valve is entirely constructed from premium 304/316/316L (CF8/CF8M/CF3M) stainless steel, offering exceptional corrosion resistance and structural integrity. Featuring a lug-style design with pre-drilled bolt holes for quick installation and removal. The center-line configuration ensures perfect alignment between disc and seat for bi-directional sealing. The one-piece stem design provides leak-proof performance. Optional mirror polish (Ra≤0.8μm) available for sanitary and food-grade applications.
Product Advantages
1. All-stainless construction withstands aggressive media including seawater and chemicals.
2. Lug-type design allows easy installation between pipe flanges without nuts.
3. Precision-machined sealing surfaces ensure zero leakage per API 609 standards.
4. Blow-out proof stem design guarantees safety in high-pressure applications.
5. Multiple actuation options: lever, gearbox, electric or pneumatic actuators.
Product Introduction
This stainless steel lug butterfly valve is engineered for corrosive service applications in:
- Chemical processing: Acid/alkali transfer
- Food & pharmaceutical: GMP-compliant process lines
- Marine systems: Desalination, shipboard piping
- Water treatment: Wastewater, potable water systems
Manufactured from high-grade stainless steel with precision machining, each valve undergoes rigorous quality control to ensure reliable sealing and extended service life. Available in multiple connection standards (ANSI, DIN, JIS) to meet various piping system requirements. Optional EP/EPDM seats available for different temperature ranges.
|
Nominal diameter DN |
Size (mm) |
Weight (kg) |
|||||||||||||
|
A |
B |
C |
D |
L |
H |
D1 |
N-Ø |
K |
E |
n1-Ø1 |
Ø2 |
G |
|||
|
(MM) |
(inch) |
|
|||||||||||||
|
50 |
2" |
161 |
80 |
42 |
52.9 |
32 |
88.38 |
125 |
4-M16 |
77 |
57 |
4-7 |
12.6 |
118 |
3.8 |
|
65 |
2.5" |
175 |
89 |
44.7 |
64.5 |
32 |
102.54 |
145 |
4-M16 |
77 |
57 |
4-7 |
12.6 |
137 |
4.2 |
|
80 |
3" |
181 |
95 |
45.2 |
78.8 |
32 |
61.23 |
160 |
8-M16 |
77 |
57 |
4-7 |
12.6 |
178 |
4.7 |
|
100 |
4" |
200 |
114 |
52.1 |
104 |
32 |
68.88 |
180 |
8-M16 |
92 |
70 |
4-10.5 |
15.77 |
206 |
9.0 |
|
125 |
5" |
213 |
127 |
54.4 |
123.3 |
32 |
80.36 |
210 |
8-M16 |
92 |
70 |
4-10.5 |
18.92 |
238 |
10.9 |
|
150 |
6" |
226 |
139 |
55.8 |
155.6 |
32 |
91.84 |
240 |
8-M20 |
92 |
70 |
4-10.5 |
18.92 |
266 |
14.2 |
|
200 |
8" |
260 |
175 |
60.6 |
202.5 |
45 |
112.89/76.35 |
295 |
8-M20/12-M24 |
115 |
88.9 |
4-14.5 |
22.1 |
329 |
18.2 |
|
250 |
10" |
292 |
203 |
65.6 |
250.5 |
45 |
90.59/91.88 |
350/355 |
12-M20/12-M24 |
115 |
88.9 |
4-14.3 |
28.45 |
393 |
26.8 |
|
300 |
12" |
337 |
242 |
76.9 |
301.6 |
45 |
103.52/106.12 |
400/410 |
12-M20/12-M24 |
140 |
107.95 |
4-14.3 |
31.6 |
462 |
40 |
|
350 |
14" |
368 |
267 |
76.5 |
333.3 |
45 |
89.74/91.69 |
460/470 |
16-M20/16-M24 |
140 |
107.95 |
4-14.3 |
31.6 |
515 |
56 |
|
400 |
16" |
400 |
309 |
86.5 |
389.6 |
51.2/72 |
100.48/102.42 |
515/525 |
16-M24/16-M27 |
197 |
158.75 |
4-20.6 |
33.15 |
579 |
96 |
|
450 |
18" |
422 |
328 |
105.6 |
440.51 |
51.2/72 |
88.38/91.51 |
565/585 |
20-M24/20-M27 |
197 |
158.75 |
4-20.6 |
38 |
627 |
122 |
|
500 |
20" |
480 |
361 |
131.8 |
491.6 |
64.2/82 |
96.99/101.68 |
620/650 |
20-M24/20-M30 |
197 |
156.25 |
4-20.6 |
41.15 |
696 |
202 |
|
600 |
24" |
562 |
459 |
152 |
592.5 |
70.2/82 |
113.42/120.46 |
725/770 |
20-M27/20-M33 |
276 |
215.9 |
4-22.2 |
50.65 |
821 |
270 |
Basic Information
|
Model NO. |
LTD71 / LTD371 / LTD671 / LTD971 |
Connection Form |
Wafer |
|
Structure |
Centre Sealing |
Seal Form |
Force Sealed |
|
Valve Stem |
Normal |
Work Pressure |
0.6MPa / 1.0MPa / 1.6MPa / 2.5MPa / Class150 |
|
Working Temperature |
Normal Temperature (-40°C < T < 120°C) |
Material of Seal Surface |
Soft Sealed / Hard Sealed |
|
Valve Body |
Casting |
Standard |
API 609 |
|
Application |
Industrial Usage, Water Industrial Usage, Household Usage |
Seated Material |
EPDM, NBR, PTFE, FKM |
|
Certification |
ISO9001 |
Flow Resistance |
Low Resistance |
|
Transport Package |
Export Wooden Crate |
Specification |
DN25 - DN1600 |
|
Origin |
China |
HS Code |
8481804090 |
|
Production Capacity |
50,000 pieces/Year |
|
|
Technical Parameters
|
Size |
DN32-DN600 |
DN650-DN2000 |
|
Working pressure |
16Bar |
10Bar |
|
Shell |
24Bar |
15Bar |
|
Seal |
18Bar |
11Bar |
|
Operating Temperature |
-45°C~+150°C |
|
|
Operating Environment |
Ballast and bilge system Chemical processing Desalination plants |
|
|
Driving Method |
Hand Lever Worm Gear Electric Pneumatic |
|
Executive Standards
|
Design Standard |
EN 593, MSS SP67, API 609, BS 5155 |
|
Inspection & Test |
API 598, ISO 5208, EN 12266 |
|
End Standard |
ANSI B16.1 CL. 125LB & B16.5 CL. 150LB |
|
AS 2129 Table D & E |
|
|
BS 10 Table D & E |
|
|
DIN 2501 (PN6, PN10, PN16) |
|
|
EN 1092 (PN6, PN10, PN16) |
|
|
ISO 2531 (PN6, PN10, PN16), 7005 (PN6, PN10, PN16) |
|
|
KS B / JIS B 1511 / 2210 (5K & 10K) |
|
|
MSS SP44 CL. 150LB |
|
|
AWWA C207 |
|
|
SABS 1123 Table 1000/3 & Table 1600/3 |
|
|
Face to Face |
ISO 5752, EN 558, MSS SP67, API 609, DIN 3202 |
|
Top Flange |
ISO 5211 |
Hot Tags: stainless steel lug butterfly valve, China stainless steel lug butterfly valve manufacturers, suppliers, factory, Lug Body Valve, Lug Style Valve, Lugged and Tapped Butterfly Valve, Stainless Steel Lug Butterfly Valve, Tapped Lug Butterfly Valve, Wafer Lug Valve
