Double eccentric flange butterfly valve

Size Range: DN50-DN2400

Pressure: PN10/16

Body Materials: DI/WCB/CF3/ CF3M/CF8/ CF8M

Seat Materials: NBR/EPDM/PTFE/SI

Disc Materials: DI/WCB/CF3/ CF3M/CF8/CF8M

Stem Materials: 45#/410/ 2Cr13/Cr13/304/316

Introduction

Introduction

Eccentric flange butterfly valve is our new design, it is mainly used in the pipeline of water, power plants, steel smelting, chemical industry, papermaking, water projects, environmental facilities, etc. Especially used for regulation in water pipes and closure equipment.

Adoptive Standards

Valve Design: API 609, MSS SP-67

Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1

Pressure Test: API 598

Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16

Top Flange: ISO5211

Product Advantage

1. Qt450-10 material for valve body and disc, spheroidization rate above grade 3, guarantee the test, mechanical performance is fully up to the standard

2. The valve shaft uses self-lubrication sleeve bearings as support, which can reduce the friction produced during valve shaft transmission and also reduce the torque.

3. The seat is surfacing with stainless steel to ensure the sealing of the valve plate and seat

4. The same size product weight is heavier than other manufacturers

5. The quality inspection from the blank to the packaging of finished product 

6. Bundor brand products are covered by the China Pacific Insurance with 10 million dollars,2 years warranty, pay two back if one bad,any quality problem of the product itself, we will pay without conditions.

Standard Test

Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.

Seat Test: 1.1 times the working pressure with water.

Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.

Special Test: On request, any other test can be carried out according to special instruction by client.

Parameters

DN NPS(Inch) A B C L A B C
50  2'' 165 125 99 108 165 125 99
65  2  1/2'' 185 145 118 112 185 145 118
80  3'' 200 160 132 114 200 160 132
100  4'' 220 180 156 127 220 180 156
125  5'' 250 210 184 140 250 210 184
150  6'' 285 240 211 140 285 240 211
200  8'' 340 295 266 152 340 295 266
250  10'' 395 350 319 165 405 355 319
300  12'' 445 400 370 178 460 410 370
350  14'' 505 460 429 190 520 470 429
400  16'' 565 515 480 216 580 525 480
450  18'' 615 565 530 222 640 585 548
500  20'' 670 620 582 229 715 650 609
600  24'' 780 725 682 267 840 770 720
700  28'' 895 840 794 292 910 840 794
800  32'' 1015 950 901 318 1025 950 901
900  36'' 1115 1050 1001 330 1125 1050 1001
1000  40'' 1230 1160 1112 410 1255 1170 1112
1200  48'' 1455 1380 1328 470 1485 1390 1328
1400  56'' 1675 1590 1530 530 1685 1590 1530
1600  64'' 1915 1820 1750 600 1930 1820 1750
1800  72'' 2115 2020 1950 670 2130 2020 1950
2000  80'' 2325 2230 2150 760 2345 2230 2150
2200  88'' 2550 2440 2295 800 2550 2440 2295
2400  96'' 2760 2650 2495 850 2760 2650 2495
Application
Related Product

Let’s make something great together.Feel free to contact us by telephone or email and we will be sure to get back to you as soon as possible.

EMAIL US
thank you