Signal Flange Butterfly Valve: Intelligent Monitoring & Efficient Flow Control

Product Introduction
The signal flange butterfly valve is a pivotal component in smart fluid control systems, synchronizing valve position data with control centers via mechanical or electronic signals to optimize energy efficiency and enable predictive maintenance. The precision-cast body features a bionically optimized flow path, reducing pressure loss by 18%-25% compared to standard butterfly valves. The synergy of EPDM seats with galvanized, 2Cr13, or stainless steel stems balances cost-effectiveness and corrosion resistance, excelling in water, gas, and low-corrosion media environments. Its lightweight flanged structure saves space while supporting manual gear, pneumatic, or electric actuation, delivering versatile solutions for smart water management and industrial automation.
Product Features
The signal flange butterfly valve combines a high-strength ductile iron or carbon steel body with flanged connections, ensuring leak-proof performance and structural stability under high-pressure/high-flow conditions. Its key innovation is the integrated mechanical/electronic signal feedback unit, which detects disc position in real time and transmits data via dry contacts or 4-20mA signals for centralized monitoring. The EPDM (Ethylene Propylene Diene Monomer) seat withstands temperatures up to 80°C, offering superior elasticity and compression resistance for water, air, and mildly corrosive fluids. Stem options include galvanized steel, 2Cr13 stainless steel, or 304 stainless steel, tailored to corrosion protection needs. The double-offset disc design paired with low-friction sealing reduces operating torque by 30%, enabling smoother actuation.

Product Advantages
Smart Integration
Seamless compatibility with automation systems allows valve status visualization, reducing manual checks and enhancing control accuracy.
Reliable Sealing
EPDM seats maintain resilience below 80°C, preventing leaks and extending maintenance intervals.
Compact & Adaptable
Flanged design suits multi-angle installation, while modular components enable rapid seal replacement to minimize downtime.
Multi-Scenario Application
Compatible with DN50-DN800 pipelines, ideal for building fire protection, HVAC, water treatment, and remotely monitored industrial systems.

|
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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