20 inch butterfly valve

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  pneumatic butterfly valve

Pneumatic Fire Safety Butterfly Valve

Features & Benefits

Fire safety butterfly valve adopts the mid line design.

The main structure of the valve is composed of valve body, valve disc, valve seat, valve stem and transmission operating mechanism.

The valve seat adopts detachable structure, transmission mechanism sub-handle, worm gear and worm Three types of signal and signal, suitable for fire sprinkler system water pipes, used for throttling or regulating flow, in which the signal valve is set on the switch position of the worm and is suitable for fire sprinkler systems.

The valve seat adopts detaching design to facilitate on-site maintenance, and adopts the whole basin design, which is not easily blocked by impurities. The joint “O” sealing lines at both ends make the pipeline installation without the need of additional gaskets to maintain a reliable seal, and can be used according to different Requires different materials.

The axle pin adopts the U.S. patented design of the withdrawal and withdrawal pin structure, which can tightly connect the valve flap shaft together without loosening and weakening the strength of the shaft and having good interchangeability. 

The operation structure is flexible and can be used to configure different rotation devices such as handles, worm gears and worm gears. The worm and worm gear can also be equipped with signal devices.

  Product Description

Product Description

• All listed output torques are expressed in inch pounds of torque (in. lbs.).

• Charts for available air pressure are expressed in pounds per square inch (P.S.I.).

• FLOWX actuators offer ±5° adjustment in the open and closed positions on DA52 through DA-125 models.

• For all other models, adjustment is in the open position only.

• The closed position is 0° fixed. Optional retrofit kits are available to allow for adjustment in both open and closed positions on the DA-160, DA-200 and DA-270 models.

General Application

• Ideally suited for many applications within the heating ventilation and air conditioning, water treatment and irrigation markets.

Technical Data

• Rotation angle:0° to 180° Adjustable angle 0° to 180°

• Air pressure:    2.5~8bar(Double acting), 3~8bar(Single acting)

• Operating ambient temperature:     Standard Type:-20°C~+80°C

• High temperature Type:     0°C~+180°C

• Low temperature Type:     -45°C~+60°C 

• Max Working Pressure:    10bar

• Pressure:     5 to 10 bar

• Work media:     Air (PNEUROP/ISO Class 4)

• Connections:     ISO 5211 for brackets

• DIN 3337 coupling (star shaped)

• VDI/VDE 3845 for accessories

• NAMUR for work media

• Air supply connection:1/8" & 1/4" G type thread.

• Surface material:     Hard anodized - 40μm

• Life time:     One million times

• Accessories:     positioner, Air Filter Regulator, lock up valve, travel switch, handwheel, etc... 

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  Parameter & Drawing

• Flowx Brand Flowx series actuators which compact design,long life service,high quality,gear and gear rack.

• This product is used for 90°C rorarionally valves,such as:ball valves,butterfly valves,plug valves etc.Our company put product quality as the first task,adpots the most advance production and technology,stronger than similar product on both prodcut quality and performance.

0-90° Rotary Pneumatic Actuator Parameter & Drawing

0-90° Rotary Pneumatic Actuator Parameter & Drawing

  Parameter & Drawing

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