Butterfly valve features: 1. Flanged Type:DN350-DN2600, PN6/PN10/PN16 2. Wafer & Lug Type:DN50-DN600, PN10/PN16 1. Flanged Type butterfly valve features: ** Structural design complies with BS 5155.** Flange drilling acc. BS4504, Section 3.2, ANSI B16.1, Class125/100 and DIN2501 PN10, PN16 and JIS B221010K, JISG55277.5K.** Operating system can be worm gear, pneumatic actuator and electric actuator ...