Pneumatic ball valve fluorine-butterfly O consists of cylinder actuators and the rubber fluorine o-type ball valve components equipping and become, is a kind of anti-corrosion ball valve, contact with liquid in the valve body wall and components adopt high pressure injection molding process, the liner has corrosion resistance, ageing resistance of poly (fluorinated ethylene-propylene rare (F46), reliable and sealing, corrosion resistance can be widely used in chemical, petroleum, metallurgy, medicine, electric power industries, realize the production process of strong acid, alkali, salt and other corrosive medium.
specifications
Main technical parameters
A. the valve body
Type: straight through cast ball valve
Nominal diameter: DN15 ~ 200mm
Nominal pressure: PN1.0, 1.6MPa
Connection type: flange connection FF, RF flange standard JB/T79.1 ~ 2-94
Upper cover pattern: cast with valve body
Internal assembly
Ball type: O ball
Flow characteristics: quick opening characteristics
Main parts and materials
Executive mechanism
Model no. : 99000 pneumatic piston actuator, GT pneumatic piston actuator (imported or domestic)
DA/SR pneumatic piston actuator (import), AT pneumatic piston actuator (import)
DRD/DRE pneumatic piston actuator (import)
Action: Angle stroke
Structure: double acting - no spring, no original position of actuator, two operating pressures are required when working
Single action - spring, actuator with original position, operating pressure required
Type of actuator and main technical parameters
Executive mechanism model, specification, output torque
Ⅰ. Double-acting pneumatic piston actuator
Ⅱ. Single-acting pneumatic piston actuator
Note: a is K2, a is K3, and b is K4
Main performance parameters
Leakage: less than 10-8 rated Kv
· speed difference: the positioning device is less than 5% of the full stroke, and the positioning device is less than 2% of the full stroke
Basic error: + / - 5% of total stroke and + / - 2% of total stroke
Adjustable range: 200:1
Rated stroke: 90 °
Rated flow coefficient Kv value
Dynamic flow characteristic curve: quick opening characteristic
Accessories: positioner, air filter pressure reducing valve, handwheel mechanism, limit switch, solenoid valve, valve position transmitter, etc
Ambient temperature: - 20 ~ + 60 ℃
Valve action: gas-closed or gas-open
Adjust actuator configuration to allow pressure differential pressure adjustable P
Ⅰ. Double-acting pneumatic piston actuator (air source pressure 0.5 MPa)
Note: 1. Equipped with 99000 series pneumatic actuators, the above table is standard configuration
2. When matching other types of actuators, make selection by referring to the output torque and the table above
Ⅱ. Single-acting pneumatic piston actuator (air source pressure 0.5 MPa)
A. Gas-closed valve
B. Air - open valve
Note: 1. Equipped with 99000 series pneumatic actuators, the above table is standard configuration
2. When matching other types of actuators, make selection by referring to the output torque and the table above
3. K3 means the number of springs
Overall dimensions
Note: the equipped actuator is 99000 series double acting pneumatic piston actuator
Pn1.0mpa valve
