WHY CHOOSE CNZPV®
November 4, 2024
- Konggang New Area,Longwan District,Wenzhou,Zhejiang
- zp3@cnzpv.com
- +86-577-86907996
FEP-Lined Pneumatic Disc-Rising Type Tank Bottom Discharge Valve(ZPL180F)
Nominal Diameter: DN40-200,NPS1 1/2″-8″
Nominal Pressure: PN10,PN16,PN25
Connection Standard: HG20592-2009,ANSI B16.5,JIS B2220
Body Material: WCB,CF8,CF8M,CF3M
Temp.Range: ≤180℃(≤356°F)
Flow Characteristic: Equal percentage,Linear,Quick-Open
Plug Type: Shut-Off/Regulating
Actuator Type: Pneumatic Diaphragm/Piston
The ZPL180F FEP-Lined Pneumatic Disc-Rising Type Tank Bottom Discharge Valve is primarily use for discharging materials from the bottom of reactors, tanks, and other containers. This valve is connected to the container bottom flange, effectively eliminating any residual medium typically found at the container outlet. As a specialized shut-off valve predominantly employed in various storage containers’ bottom. Its sleek streamlined design of the valve body flow channel as a Y shape(45°/50° degrees) and designed with a tapered valve disc facilitate smooth medium flow. Widely applied in polymerization reactions, chemical fiber production, food processing,fermentation processes, and other industries; it also proves to be an ideal choice for slurry material and high-density fluid applications.When selecting valves from this series, it is crucial to consider factors such as temperature, pressure levels, adhesion properties, corrosiveness of the medium within the storage container to optimize performance under different operating conditions.
According to different working conditions, we designed two opening modes of tank bottom discharge valves:
1. ZPL170 Disc-Lowering Type Discharge Valve(Disc-Open-Into-Valve Body) features a valve disc that operates within the valve body, requiring it to overcome the force of the medium when closed. The closing force surpasses the opening force, making this valve suitable for reactors with non-crystallizing media.
2. ZPL180 Disc-Rising Type Discharge Valve (Disc-Open-Into-Vessel)is designed with a tapered valve disc that moves outside the valve body and towards into the inner of reactor. When opened, it needs to counteract the force exerted by the medium. The opening force exceeds the closing force, making this up-open valve use for reactors equipped with stirrers and prone to crystallization.
The Features & Advantages:
1. The tank bottom discharge valve is compatible with various media, and for corrosive substances,ZPL180F fluorine-lined valve to meet the requirements of strong corrosion applications.
2. A bottom guide is employed to prevent material stack and crystallization, while also reducing the stroke length of the valve stem to prevent deformation of the valve shaft.
3. The Outlet and container are positioned at a 45°-degree angle with a curved transition,can makes facilitating smoother material discharge.
4. Utilized a multi-spring diaphragm cylinder,to reduce size and weight of cylinder at the bottom of the container,.By adjusting wire range and spring length, output force can be increased or decreased to meet different specifications requirements.
5. The air-cylinder allows for single-acting or double-acting functions by adding or removing springs respectively.Furthermore, changing spring installation direction enables positive or negative actions for disc-rising or disc-lowering.
6. An external PT100 explosion-proof temperature sensor can be added for online temperature monitoring as well as 4-20mA remote monitoring in control room to regulate material temperature within containers. effectively solving the safety concerns during material reactions.
7. The valve can be equipped with limit switch for remote position display purposes.The equal percentage curve processing on its valve spool combined with a positioner can achieve the regulation function.
8. Adding a bellows pipe structure provides dual protection against hazardous corrosive media.
| Body Material | WCB、LCB、304、316、316L |
| Spool Material | 410、304、316、316L |
| Seat Material | 304、316、316L (+PTFE/PPL) |
| Stem Material | 17-4PH 304、316、316L |
| Liner Material | FEP,PFA |
| Bellows Pipe Material | PTFE、316L |
| Valve Type | Disc-Rising Type, Disc-Lowering Type |
| Temp. Range | ≤180℃(≤356°F) For Lined/High-Tamp. condition can use Metal Valve |
| Leakage Level(ANSI) | ANSI B16.104 Class VI |
| Flow Characteristic | Equal percentage,Linear,Quick-Open |
| Ends | Flang(RF/FM/RJ)、Welded type |
| Flange Connection Standard | HG20592-2009,ANSI B16.5,JIS B2220 |
| Available Actuators | Pneumatic Diaphragm Type(ZP6100) |
| Pneumatic Piston Type(ZP6200) | |
| Electric Type | |
| ……… |
Feel free to drop us a message if you have any open questions and would like to work with us.
