Al-bronze Wafer/Lug Butterfly Valve | |
Standard: | Design standard conform to: MSS SP-67, API609, EN593 |
Connection flange conform to: DIN PN10/16/25, ANSI B16.1, BS4504, ISO PN10/16, | |
JIS B2212/2213, BS 10 Table D, BS 10 Table E | |
Top flange conform to: ISO 5211 | |
Face to face conform to: API609, ISO5752 series 20, BS5155 | |
Test standard conform to: API598 | |
Design characters: | 1. Rubber backed seat with stable valve torque. |
2. Grooved sleeve design to achieve stable positioning. | |
3. Simple construction, small in size, light in weight. Easy disassembling, installation and maintenance. | |
4. Minimized operating torque. Lever, gear, pneumatic and electric actuators can be chosen. | |
5. Special design, high flow rate and low flow resistance. | |
6. Suitable medium: water, sewage, sea water, air, steam, food, medicament, oils, acids, alkalis, salts etc. No leakage under the rated pressure. | |
Performance: | Nominal Diameter: Non-backed: DN50-DN300 |
Backed: DN50-DN300 | |
DN350-DN1200 | |
Nominal Pressure PN (MPa): | 1.0, 1.6, 2.0, 2.5 |
Testing pressure (water) Ps (MPa) | Body seat: 1.5 times rated pressure |
Pressure range: | Seat test: 1.1 times rated pressure |