Metal to Metal Flanged Butterfly Valve
Features
Operation Cycles |
Over 50,000 times |
Leakage Level |
ANSI Class V |
Metal Seated |
Wide temperature and pressure range |
Torque |
Zero friction for opening and closing and low torque |
Eccentric Design |
Reduce valve seat wear and improve service life. |
Valve stem anti blowout design |
Reduce maintenance difficulty and cost |
Bidirectional Pressure Sealing |
Any installation position |
Low Flow Resistance |
Improve fluid efficiency and reduce energy consumption |
Coating Grade |
Conventional and special conditions of C1-C5 & CX |
Certificates |
ISO9001, CE, WRAS, ACS |
Specifications
Design Standard |
API 609 |
Top Flange Standard |
ISO 5211 |
End Flange Standard |
ASME B16.5, ASME B16.47 |
Face to Face Dimension |
API 609 |
Testing Standard |
API 598 |
Temperature |
-169℃~700℃(depends on material) |
Pressure |
150LB, 300LB |
Body Material |
Carbon Steel, Stainless Steel, Duplex, Alloy |
Disc Material |
Carbon Steel, Stainless Steel, Duplex, Alloy |
Shaft Material |
Stainless Steel, Monel, etc |
Seat Material |
Stainless Steel, Stellite, Alloy, etc |
Operator |
Lever, Gearbox, Pneumatic, Electric Actuator |
Dimension
| Size | L | CLASS 150LB | Weight | CLASS 300LB | ISO 5211 | Weight | ||||
| ФD2 | n - Ф | n - UN | ФD2 | n - Ф | n - UN | |||||
| DN50 | 108 | 120.7 | 4-Ф19.1 | 10 | 127 | 4-Ф19.1 | 4-5/8-11UNC | F07 | 13 | |
| DN65 | 112 | 139.7 | 4-Ф19.1 | 14 | 149.2 | 4-Ф22.2 | 4-3/4-10UNC | F07 | 18 | |
| DN80 | 114 | 152.4 | 4-Ф19.1 | 17 | 168.3 | 4-Ф22.2 | 4-3/4-10UNC | F07 | 23.2 | |
| DN100 | 127 | 190.5 | 8-Ф19.1 | 23 | 200 | 4-Ф22 2 | 4-3/4-10UNC | F07 | 32 | |
| DN125 | 140 | 215.9 | 8-Ф22.2 | 32 | 235 | 4-Ф22.2 | 4-3/4-10UNC | F10 | 42 | |
| DN150 | 140 | 241.3 | 8-Ф22.2 | 41 | 269.9 | 8-Ф22 2 | 4-3/4-10UNC | F10 | 58 | |
| DN200 | 152 | 298.5 | 8-Ф22.2 | 50 | 330.2 | 8-Ф25.4 | 4-7/8-9UNC | F12 | 85 | |
| DN250 | 165 | 362 | 8-Ф25.4 | 4-7/8-9UNC | 74 | 387.4 | 12-Ф28.6 | 4-1-8UNC | F14 | 121.6 |
| DN300 | 178 | 431.8 | 8-Ф25.4 | 4-7/8-9UNC | 120 | 450.8 | 12-Ф31.8 | 4-1 1/8-8UN | F14 | 180 |
| DN350 | 190 | 476.3 | 8-Ф28.6 | 4-1-8UNC | 146 | 514.4 | 16-Ф31.8 | 4-1 1/8-8UN | F16 | 245 |
| DN400 | 216 | 539.8 | 12-Ф28.6 | 4-1-8UNC | 200 | 571.5 | 16-Ф34.9 | 4-1 1/4-8UN | F25 | 334 |
| DN450 | 222 | 577.9 | 12-Ф31.8 | 4-1 1/8-8UN | 236 | 628.6 | 20-Ф34.9 | 4-11/4-8UN | F25 | 400 |
| DN500 | 229 | 635 | 16-Ф31.8 | 4-1 1/8-8UN | 300 | 685.8 | 20-Ф34.9 | 4-1 1/4-8UN | F25 | 594 |
| DN550 | 267 | 692.2 | 16-Ф34.9 | 4-1 1/4-8UN | 400 | 743 | 20-Ф41.3 | 4-1 1/2-8UN | F25 | 700 |
| DN600 | 267 | 749.3 | 16-Ф34.9 | 4-1 1/4-8UN | 460 | 812.8 | 20-Ф41.3 | 4-1 1/2-8UN | F25 | 800 |
| DN650 | 292 | 744.5 | 36-Ф22.2 | 460 | 803.3 | 24-Ф34.9 | 8-1 1/4-8UN | F30 | 720 | |
| DN700 | 292 | 795.3 | 40-Ф22.2 | 500 | 857.2 | 28-Ф34.9 | 8-1 1/4-8UN | F30 | 920 | |
| DN750 | 318 | 846.1 | 44-Ф22.2 | 570 | 920.8 | 28-Ф38.1 | 8-13/8-8UN | F30 | 1100 | |
| DN800 | 318 | 900.1 | 48-Ф22.2 | 620 | 977.9 | 24-Ф41.3 | 8-1 1/2-8UN | F30 | 1100 | |
| DN850 | 330 | 957.3 | 40-Ф25.4 | 750 | 1031.9 | 28-Ф41.3 | 8-1 1/2-8UN | F30 | 1600 | |
| DN900 | 330 | 1009.6 | 44-Ф25.4 | 794 | 1089 | 24-Ф44.5 | 8-15/8-8UN | F30 | 1975 | |
| DN950 | 410 | 1070 | 40-Ф28.6 | 1100 | 1139.8 | 28-Ф44.5 | 8-15/8-8UN | F35 | 2017.6 | |
| DN1000 | 410 | 1120.8 | 44-Ф28.6 | 1250 | 1190.6 | 32-Ф44.5 | 8-15/8-8UN | F35 | 2350 | |
For more size information, please consult the sales team.
Product Overview
This valve is specifically engineered for industrial pipelines of larger diameters, delivering precise flow control under medium-pressure and wide-temperature conditions. Featuring a triple‑eccentric hard‑seal design, the valve disc and seat experience virtually frictionless operation during opening and closing, significantly enhancing wear resistance and seal longevity. It is particularly suited for critical large‑diameter systems where maintenance costs are prohibitively high.
Core Features
Triple Eccentric Design
Enables frictionless operation, ensuring sustained tight sealing after prolonged service while reducing operating torque.
Metal‑to‑Metal Hard Sealing
Seat sealing surfaces overlaid with cobalt‑based hard alloy (Stellite 6) deliver exceptional wear and corrosion resistance across a broad temperature range from cryogenic to medium‑temperature conditions.
High‑Strength Body
Constructed from WCB carbon steel (ASTM A216) compliant with ASME B16.34, delivering robust structure and reliable pressure containment.
Flange Connection
Designed to ANSI B16.5 standards for straightforward installation and compatibility with global large‑scale piping systems.
Optional Safety Features
Configurable with fire safety (API 607/6FA) and static dissipation devices to meet hazardous environment requirements.
Standards Compliance
Design and manufacture
API 609
End dimensions
ASME B16.5 (flanges)
Pressure‑temperature ratings
ASME B16.34