WCB Steel Body Bronze Disc Rubber Lined Gear Operated Flanged Butterfly Valve (Centerline Type)
Product Introduction
This centerline-type gear operated flanged butterfly valve combines ASTM A216 WCB steel body with high-strength bronze disc fully lined with rubber. The precision gearbox enables easy operation of large-size valves. Designed per API 609 standard with ASME B16.5 Class150 flanges, it's ideal for marine and seawater applications.
Product Advantages
- Superior Corrosion Resistance: Bronze disc + EPDM lining
- Effortless Operation: Gearbox for large valves
- Reliable Sealing: Bidirectional zero-leakage
- Long Service Life: Over 10 years in seawater
- Quality Assurance: ISO9001 certified
Product Features
Premium Material Composition
- Body: Normalized WCB steel (HB187-241)
- Disc: C95800 aluminum bronze (CuAl9Fe4)
- Stem: Hard chrome plated 2Cr13 (≥25μm)
01
Professional Rubber Lining
- Fully lined with EPDM rubber
- 6mm lining thickness, bonding strength ≥6MPa
- Rubber properties:
* Tensile strength ≥15MPa
* Elongation ≥380%
* Excellent seawater resistance
02
Gear Operation System
- 20:1 worm gear reduction ratio
- 85% torque reduction
- Position indicator and mechanical stop
03
Optimized Sealing
- Centerline design, bidirectional zero-leakage
- Full perimeter seat contact
- Uniform sealing pressure distribution
04
|
DN Nominal diameter |
L |
1.0MPa |
1.6MPa |
|||||||
|
mm |
inch |
D |
D1 |
H1 |
H2 |
N-d0 |
D |
D1 |
n-d0 |
|
|
50 |
2" |
108 |
165 |
125 |
202 |
77 |
4-18 |
165 |
125 |
4-18 |
|
65 |
2.5" |
112 |
185 |
145 |
213 |
93 |
4-18 |
185 |
145 |
4-18 |
|
80 |
3" |
114 |
200 |
160 |
221 |
100 |
8-18 |
200 |
160 |
8-18 |
|
100 |
4" |
127 |
220 |
180 |
234 |
113 |
8-18 |
220 |
180 |
8-18 |
|
125 |
5" |
140 |
250 |
210 |
253 |
123 |
8-18 |
250 |
210 |
8-18 |
|
150 |
6" |
140 |
285 |
240 |
269 |
193 |
8-22 |
285 |
240 |
8-22 |
|
200 |
8" |
152 |
340 |
295 |
316 |
172 |
8-22 |
340 |
295 |
12-22 |
|
250 |
10" |
165 |
395 |
350 |
358 |
202 |
12-22 |
405 |
355 |
12-26 |
|
300 |
12" |
178 |
445 |
400 |
384 |
218 |
12-22 |
460 |
410 |
12-26 |
|
350 |
14" |
190 |
505 |
460 |
439 |
253 |
16-22 |
520 |
470 |
16-26 |
|
400 |
16" |
216 |
556 |
515 |
500 |
300 |
16-26 |
580 |
525 |
16-30 |
|
450 |
18" |
222 |
615 |
656 |
528 |
328 |
20-26 |
640 |
585 |
20-30 |
|
500 |
20" |
229 |
670 |
620 |
552 |
352 |
20-26 |
710 |
650 |
20-33 |
|
600 |
24" |
267 |
780 |
725 |
669 |
397 |
20-30 |
840 |
770 |
20-36 |
|
700 |
28" |
292 |
895 |
840 |
745 |
498 |
24-30 |
910 |
840 |
24-36 |
|
800 |
32" |
318 |
1015 |
950 |
803 |
571 |
24-33 |
1025 |
950 |
24-39 |
|
900 |
36" |
330 |
1115 |
1050 |
880 |
615 |
28-33 |
|||
|
1000 |
40" |
410 |
1230 |
1160 |
935 |
705 |
28-36 |
|||
|
1200 |
48" |
470 |
1455 |
1380 |
1067 |
827 |
32-39 |
|||
Basic Information
|
Model NO. |
D41X / D341X / D641X / D941X |
Connection Form |
Flange |
|
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, EN 593, MSS SP67, BS 5155 |
|
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 - DN2400 |
|
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 |
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