Pneumatic Expansion Inflatable Butterfly Valve

Pneumatic Inflatable Butterfly Valve features a unique design that uses gas pressure to expand the valve seat toward the butterfly disc, providing uniformly distributed sealing pressure at all times. Since the disc and seat only make momentary contact during valve opening and closing, the disc experiences minimal friction. In contrast, conventional butterfly valves suffer from collisions caused by disc scraping, which reduces valve performance and lifespan.

Pneumatic Inflatable Butterfly Valve requires very low torque to open and close. This allows for the use of smaller actuators, thereby reducing overall valve costs. According to comparative tests and field application records, this butterfly valve outperforms all other valves. In fact, its lifespan can reach one to three million cycles, and it remains operational even under severe wear conditions—an exceptional characteristic. It is suitable for dry solids, gases, and slurries. The inflatable butterfly valve is designed for harsh operating conditions.

Performance Features:
Inflatable seat reduces wear on disc and seat
Lower actuator torque requirement
Longer valve lifespan
Larger sealing contact area
Minimal seat wear
Proven superiority for abrasive flows and dry bulk solids
Negligible disc collision
Multiple bearings
Torque requirements
Connection Standard: Wafer type
Nominal Diameter: DN100-DN600
Working Pressure: 16bar for DN100-DN300, 10bar for DN350-DN600
Flange Standards: DN50-DN300: EN1092 PN10/16, ASME B16.5 Class150, JIS B2239 10K/16K, BS10 Table D/E
DN350-DN2000: EN1092 PN10/16, ASME B16.5 Class150, BS10 Table D/E
Face-to-Face Dimensions: EN558 Series 20, API 609 Table 1
Top Flange: ISO 5211
Seal Test: ISO 5208 Category 3, API 598 Table 5
Temperature Range: -40°C to +180°C (depending on pressure, medium, and material)
Actuation: Pneumatic actuator