Product Introduction
The fully EPDM-lined flanged butterfly valve features a cast/ductile iron body/disc with complete EPDM rubber lining, designed for corrosive media and harsh environments. ISO 5211 flanges ensure pipeline integrity, ideal for acids, alkalis, and saline solutions in chemical, water treatment, and marine industries. The molded EPDM lining isolates metal surfaces, operating at PN16 pressure (-20℃~120℃) for DN50-DN800 pipelines.
Product Features
- Full EPDM lining: Body, disc, and flow path fully lined with EPDM rubber, resistant to pH 3-12 media.
- Flange reliability: ≤0.02mm sealing face flatness passes ISO 5208 Grade B leakage test.
- Elastic sealing: EPDM compensates disc misalignment for bidirectional bubble-tight shutoff.
- Temperature & wear resistance: Withstands 120℃ and 50,000+ cycles with abrasive media.
- Lightweight design: 30% lighter than metal valves, 40% faster installation.
Product Advantages
1. Corrosion protection: EPDM lining resists oxidants like sodium hypochlorite.
2. Long-term sealing: Auto-compensation extends service intervals.
3. Cost-effective: 50% lower cost than full stainless steel valves, ISO 9001 compliant.
4. Global compatibility: ANSI/DIN/JIS flanges for international pipeline integration.
|
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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