Pneumatic Discharge Valve

Pneumatic discharge valve

Pneumatic discharge valve manufacturer, factory and supplier. Pneumatic Tank bottom Flush Valve is available with pneumatic actuation. Double acting or single acting pneumatic cylinders or diaphragm actuators for a linear actuation are used in Pneumatic Tank bottom Flush Valve. As a standard industry practice, for open into the tank, i.e., disc rising type flush bottom valve, diaphragm type actuators are preferred, while for open into valves, i.e. disc lowering type flush bottom valves, cylinder type actuators are preferred as higher stroke length is required for these types of valves. With these actuators, Pneumatic Tank bottom Flush Valve is automated thus allowing the liquid & slurry to be drained off remotely and with minimum labor. We offers pneumatic actuators with single-acting (fail-safe) design and double-acting (stay-put) design for the Pneumatic Tank bottom Flush Valve.

Pneumatic discharge valve is used in piping, reactors & vessels to drain out Liquids, Abrasive, Slurry, Viscous Material or Semi Solid Media. Flush Bottom Valves are Available in design of Disc opening into the Tank (Vessel Opening Design) & Disc Lowering (Inside Valve Opening Design) into the Valve Body. Flush Bottom Valves with disc opening into the tank or opening upwards is the most commonly used. It is used where enough space is available between Bottom pad and the stirrer of the tank. The mass load inside the tank helps closing & tight shut off the Flush Bottom Valve. Normally,the inlet size of a standard flush bottom valve is one size higher than that of the outlet size. There are special constructiona possible with both sizes same. The outlet port is at an angle to the inlet port.Normally 45 or 60 degree deviation is provided. The end connection are normally flanged.

Pressure Rating:PN10-PN40,ANSI 150 # / 300 #

Design:Upward / Downward

Face to Face:BS 6755 or others

End Connection:ANSI B16.50 or others

M.O.C.:CS / SS304 / SS316 / WCB / CF8 / CF8M & Higher Alloys on request

Option:Hand Wheel Or Pneumatic actuator Operated

Operation:Normal or Jacketed

Size Range:40 mm to 300 mm

1. Automate liquid drain operation from the pneumatic discharge valve and minimize the labor.

2. For the precise process control parameters,Pneumatic Tank bottom Flush Valve is optionally offered with Automation accessories such as Solenoid Valves, Limit switches, Positioner, Air Filter Regulators.

3. Pneumatic Tank bottom Flush Valve is available in the range of 15 NB to 300 NB and in BS, ANSI, DIN standards.

4. Pneumatic Tank bottom Flush Valve available in the design of Jacketed, Lined, and also for the Sanitary application.

5. Manual override provided for safety and emergency operations of pneumatic tank flush bottom valve.

6. Pneumatic discharge valve is offered in Investment Casting as well as fabricated construction. Valves available in all metallurgy, like, Carbon Steel (CS ASTM A 216 WCB / WCC), S.S 304 (ASTM A 351 Gr CF8), S.S 316 (ASTM A 351 Gr CF8M) , S.S 304L (ASTM A 351 Gr. CF3), S.S 316L (ASTM A 351 Gr CF3M) , Alloy 20, ASTM A 351 Gr. CN7M) Hast alloy C-22 & c-276 (ASTM A 494 Gr. CW12MW / CX2MW ) and as per specifications.

7. The seat of valves- Conical Metal to Metal disc seating/ PTFE seating with option of fixed or Renewable seat. Further metal seating can be hard faced by StelliteTM where distortion of seat by aggressive liquid or slurry is common.

8. Pneumatic Tank bottom Flush Valve outlet discharge angle available in 45°and valves can also be tailored made to 60° of discharge angle.

9. Pneumatic Tank bottom Flush Valve can also be provided with temperature sensors to measure the temperature in the vessel.

10. Bolted Stuffing Box (Gland), easily adjustable & with Repackable service.

Structure & Design

Typically features a rotary or linear actuator driven by compressed air, connected to a valve stem or ball mechanism.
Includes a sealable valve seat (e.g., O-ring or hard-coated materials) to prevent leaks and withstand harsh media.
Available in top-mounted or side-mounted configurations, suitable for vertical or horizontal installations.
Functionality

Fast operation: Rapid opening/closing for precise control of fluid or solid discharge.
Corrosion resistance: Often made of stainless steel or PTFE-lined materials to handle aggressive chemicals.
Low maintenance: Durable seals and minimal moving parts reduce downtime.
Applications

Chemical/Pharmaceutical industries: For transferring corrosive liquids, slurries, or powders.
Food & Beverage: Hygienic designs ensure compliance with sanitation standards.
Oil & Gas: Handles high-pressure or abrasive materials in pipelines.
Advantages

Safety: Fireproof and explosion-proof options for hazardous environments.
Energy efficiency: Low air consumption and minimal wear.
Scalability: Customizable sizes to fit various pipeline diameters.
Working Principle:
Compressed air activates the actuator, which moves the valve stem or ball to open/close the passage.
The seal ensures tight closure even under high pressure, while the streamlined design minimizes turbulence and residue buildup.
This valve is essential for automating material handling processes, ensuring reliability and safety in demanding industrial settings.

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