Structural features
Our company's butt-welded two-way pressure butterfly valve not only adopts the conventional three-eccentric structure, but also combines the movable seat principle of the fixed ball valve, which more effectively guarantees the sealing performance when the reverse pressure is bearing, and truly achieves 100% two-way pressure.
Standards & Specifications
Design standard: GB/T 12238 JB/T 8527
Structure length: GB/T 12221
Flange connection size: GB/T 12224
Inspection and test: GB/T 26480
Main component materials
Valve body |
WCB,CF8,CF8M,316,316L |
Butterfly plates |
Q235A,WCB,CF8,CF8M,316,316L |
Seals |
304, 316 or 201+ Wear Resistant Cardboard, PTFE, RPTFE |
Stem |
2Cr13,304,316 |
stuffing |
Flexible graphite |
Connection Size (mm)
Nominal DN |
L |
H1 |
H2 |
A |
B |
50 |
150 |
70 |
240 |
60 |
49 |
65 |
170 |
80 |
250 |
76 |
63 |
80 |
180 |
85 |
260 |
90 |
78 |
100 |
190 |
110 |
280 |
114 |
102 |
125 |
200 |
120 |
300 |
140 |
128 |
150 |
210 |
140 |
320 |
168 |
154 |
200 |
230 |
150 |
370 |
219 |
203 |
250 |
250 |
185 |
400 |
273 |
255 |
300 |
270 |
220 |
430 |
325 |
305 |
350 |
290 |
250 |
455 |
377 |
354 |
400 |
310 |
270 |
500 |
426 |
398 |
450 |
330 |
300 |
540 |
480 |
456 |
500 |
350 |
325 |
590 |
530 |
502 |
600 |
390 |
380 |
660 |
630 |
591 |
700 |
430 |
435 |
720 |
720 |
695 |
800 |
470 |
485 |
790 |
820 |
797 |
900 |
510 |
540 |
850 |
920 |
899 |
1000 |
550 |
590 |
900 |
1022 |
998 |
Buy Butterfly valves
Follow the following 3 steps to send a inquiry!
Step1.Tell Us What You Need
1. Size of valve:______ (Example:DNXX or XX Inch)
2. Body Material:______ (Example:SS,WCB,etc.)
3. Sealing Material:_____(Example:Graphite,Rubber,PTFE,etc.)
4. Connection:_____ (Example:flange,wafer,etc.
5. Rating Pressure:_____(150LB,PN10,etc.)
6. Face to face length:___MM(optional)
7. Medium:____(optional)
8.Any other special requirement?
Step 2.Get Solution & Quote
We will work on the best price according to your requirements and the specific quote and drawing will be provided within 24 hours.
You can also whatsapp/wechat: 86 18958911079 directly.
Step 3.Approve for Sample or Mass Production
We can do OEM for you!
We can start cooperation with free sample(freight need to be payed)
NO MOQ.