Wafer(Lug)Butterfly Valve

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
Seat test: 1.1 times rated pressure