Three eccentric flange butterfly valve

Size Range: DN50-DN2000

Pressure: PN16/25/40/63

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

Seat Materials: cr/304/316

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

Stem Materials: 2Cr13/Cr13/304/316

Introduction

Features:

Three Eccentric Design

Stainless Steel sealing, good sealing performance with both low temperature and high temperature, anti-corrosive, long life

Sealing seat anti-frictional and long life

Bi-Directional

Fire safe Design

Low Friction Body Seat

Product Advantages:

1. The valve body is all precision cast valve body. The material of WCB is up to standard and the appearance is fine.There is no trachoma and every batch of casting has furnace number sign,which is convenient for production tracking and material protection inspection.

2. The valve body adopts ZG250-485 material that conforms to the national standard, and it undergoes 15 processes from the original iron to the valve body.

3. The CNC lathe processing butterfly plate, the sealing ring is a soft and hard multi-layered metal ring, with the dual advantages of metal and elastic seal, to ensure excellent sealing performance in high temperature and low temperature environment.

4. The valve stem is made of stainless steel. After quenching and tempering, the strength of the valve stem is doubled, which reduces the problem of opening and closing and leakage caused by deformation of the valve stem.

5. After the production of finished products, each product shall be coated with lead-free paint three times for the primer and topcoat to ensure the brightness and rust resistance of the product's appearance.

6. After the product is pressured and adjusted, the turbine adjusting screw is processed again, and the lengths of the products are adjusted to be consistent. The turbine adjusting screws of each product are equipped with protective nuts to protect the adjusting screws from damage.

7. The valve plate is heavy, the valve stem is thick, the pin is large, the valve seat is processed with fineness, flatness, and no welding bead.

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

9. 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.

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

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) L ΦB ΦC ΦB ΦC ΦB ΦC ΦB ΦC
50  2'' 108 125 102 125 102 125 102 135 102
65  2  1/2'' 112 145 122 145 122 145 122 160 122
80  3'' 114 160 138 160 138 160 138 170 138
100  4'' 127 180 158 190 162 190 162 200 162
125  5'' 140 210 188 220 188 220 188 240 188
150  6'' 140 240 212 250 218 250 218 280 218
200  8'' 152 295 268 310 278 320 285 345 285
250  10'' 165 355 320 370 335 385 345 400 345
300  12'' 178 410 378 430 395 450 410 460 410
350  14'' 190 470 438 490 450 510 465 525 465
400  16'' 216 525 490 550 505 585 535 585 535
450  18'' 222 585 550 600 555 610 560 /
500  20'' 229 650 610 660 615 670 615
600  24'' 267 770 725 770 720 795 735
700  28'' 292 840 795 875 820 /
800  32'' 318 950 900 990 930
900  36'' 330 1050 1000 1090 1030
1000  40'' 410 1170 1115 1210 1140
1200  48'' 470 1390 1330 1420 1350
1400  56'' 530 1590 1530 1640 1560
1600  64'' 600 1820 1750 1860 1780
1800  72'' 670 2020 1950 2070 1985
2000  80'' 760 2230 2150 2300 2210
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