The worm gear support ear butterfly valve adopts a worm gear transmission mechanism, which is easy to operate, smooth to open and close
○ Nominal diameter: DN50~DN600mm
○ Nominal pressure: PN6~PN40bar
○ Applicable media: water, air, oil, weak acid-base solutions, food fluids, smoke, etc
○ Working temperature:
EPDM seal: -40 ° C to+135 ° C
NBR sealing: -30 ° C to+80 ° C
PTFE seal: -40 ° C to+180 ° C
Metal hard seal: -40 ° C to+450 ° C (special models)
○ Connection method: clamp type, flange type
○ Valve body material: ductile iron, cast steel, stainless steel, aluminum alloy
○ Butterfly plate material: ductile iron, stainless steel 304316, 1.4529
○ Sealing form: midline soft seal, triple eccentric metal hard seal
○ Operation method: Manual operation of worm gear and worm gear
○ Number of opening and closing cycles: 5-30 cycles
○ Output torque: 50~2000 N · m
○ Self locking performance: equipped with self-locking function, can stably stay at any opening degree
○ The transmission is stable and reliable, and the worm gear structure provides high torque output, making opening and closing more effortless
○ Excellent sealing performance, using multi-layer or rubber sealing rings to effectively prevent medium leakage
○ Compact and sturdy structure, occupying small space, suitable for the installation needs of large-diameter pipelines
○ Long service life, metal parts are wear-resistant and corrosion-resistant, suitable for frequent manual operation conditions
○ Easy and intuitive operation, clear handwheel control opening, no need for external power source support
○ Municipal water supply and drainage engineering: used for manual cutting and adjustment of large-diameter pipelines in tap water and sewage networks
○ HVAC system: Control the on/off of hot and cold water in large buildings or industrial HVAC systems
○ Power industry: applied to low-voltage and high flow pipeline systems such as circulating cooling water and fire water in power plants
○ Chemical and metallurgical fields: suitable for corrosive or high-temperature medium pipelines that require high sealing but do not frequently open and close
○ Fire Protection System: As a normally open/normally closed manual control valve, used for isolation control of fire pump rooms and main pipelines
The manual lug butterfly valve has a simple structure and is easy to operate. It can be quickly opened and closed by manually rotating the handle
The worm gear support ear butterfly valve adopts a worm gear transmission mechanism, which is easy to operate, smooth to open and close
The manual lug butterfly valve has a simple structure and is easy to operate. It can be quickly opened and closed by manually rotating the handle