◆ Pneumatic bottom discharge valve

An A/B type pneumatic bottom discharge valve is a special cutoff valve, primarily used at the bottom of various storage containers. Its smooth streamline valve body design and spherical seat valve core facilitate the flow of media, and it is widely applied in industries such as polymerization reactions, chemical fibers, food, and fermentation.

For slurry and high-density fluid applications, it is also an ideal choice. When selecting valves from this series, it is essential to consider the temperature, pressure, adhesiveness, and corrosiveness of the medium inside the storage container. To meet different working conditions to the greatest extent, in addition to the standard products provided by the samples, we can also customize according to

We offer customized design products to meet customers' special requirements.

The pneumatic bottom discharge valve comes in two structural types, A being the overhead type, and B the bottom-mounted type. It can be equipped with HA diaphragm actuator and VA, VP cylinder actuators.

Exhibition A: When the valve is open, the valve core moves inward towards the reactor. When sediment accumulates in the reactor tank, opening the valve allows for easy sediment discharge. Additionally, the medium inside the tank exerts pressure on the valve core, acting as a check valve.

B-Down Flow: When the valve is open, the valve core moves inward. The valve is prone to close when the reaction kettle needs thorough stirring or when a negative pressure (vacuum) occurs at the bottom of the kettle. When the kettle is under vacuum, it can act as a check valve.
The leakage rate of the regulating valve conforms to GB/T 4213-2008 standard.
Pneumatic Bottom Discharge Valve Selection
Nominal Bore: DN40, 50, 65, 80, 100, 125, 150, 200, 250mm
Nominal Pressure: ANSI 125, 150, 300, 600
              JIS 10、16、20、30、40K
              PN1.6、4.0、6.4MPa
Body Type: Direct-Through
Valve Cover Styles: Standard, Radiator Type
Connection Types: Flange FF, RF, RJ, TG, MFM
Flow characteristics: Quick opening
Leak Class: Hard Seal (ASME B16.104 IV)
Soft Sealed (ASME B16.104 VI)
Operating Temperature: Standard Type -17~+230℃
Extended I (EI) -45~+350℃
◆ Air-operated釜bottom discharge valve accessories

Valve positioners, air filter regulators, solenoid valves, hold-open valves, limit switches, valve position transmitters, handwheels, etc.