The ZPL180Y bottom discharge valve is mainly used for bottom discharge in reactors, storage tanks, and other containers. Installed on the tank bottom flange, the valve eliminates the residual phenomenon of process media that usually occurs at the container outlet.
As a special type of shut-off valve, it is primarily applied to the bottom of various storage containers. Its smooth and streamlined valve body flow channel design, combined with the spherical single-seat valve plug type, facilitates medium flow, making it widely used in industries such as polymerization reactions, chemical fiber, food, and fermentation. It is also an ideal choice for occasions involving slurries and high-density fluids. When selecting valves of this series, factors such as the temperature, pressure, adhesiveness, and corrosiveness of the medium in the storage container must be considered to maximize adaptability to different working conditions.
Classification of Bottom Discharge Valves:
●Metal rising-stem discharge valve: ZPL180Y (resistance-resistant, erosion-resistant, crystallization-resistant, anti-clogging)
●Metal lowering-stem discharge valve: ZPL170Y (resistance-resistant) Users can select the appropriate type based on operating conditions (pressure difference, temperature, medium state, installation method) and leakage requirements.
| Body Type | Straight-Through Type | |
| Size | DN15~DN350 | |
| D & M Std. | GB/T12237, HG/T3704, P1608 | |
| F2F Std. | GB/T12221, HG/T3704, ANSIB16.10 | |
| PT & I Std. | GB/T13927, API598 | |
| Conn. Std. | Flange Sealing Face | RF, FM/M, T/G, FF, RJ |
| HG/T20592-2009 | PN10, PN16, PN25 | |
| ASME B16.5 | 150LB | |
| Sealing Type | Seat Type | Soft Seat |
| Stem Sealing Type | Packing Sealing | |
| Materials | Body/Bonnet Material | WCB, LCB, SS304, SS316L |
| Plug Material | WCB, F304, F316L | |
| Stem Material | 17-4PH | |
| Lining Material | FEP(F46), PTFE(F4), PFA | |
| Packing Material | PTFE | |
| Technical Parameters | Temperature Range | -30℃~160℃ |
| Flow Characteristic | Equal percentage(EQ%)/ Linear(LIN)/ Quick opening(QO) | |
| Leakage Level | IEC 60534-4, ANSI FCI 70-2, ASME B16.104 | |
| Rangeability | 100:1 | |
| Basic Error | w/pos.:≤±2% | |
| Hysteresis Error | w/pos.:≤2% | |
| Accessories | Actuator | Pneumatic Actuator ZP6000 Series |
| Electric Actuator ZP9000 Series | ||
| Main Accessories | Solenoid Valve, Limit Switch, Positioner, Air Filter Regulator | |
| Others | Manual Mechanism, Dump Valve, Air-ControlledValve, Lock-up Valve | |
| Flange, Gasket, Bolt | ||
| Features | Description |
| Dependable Bonnet | The sealing surfaces feature welded Stellite hard alloy cladding, making them suitable for both granular media and crystallizing fluids. |
| Superior Sealing | The valve outlet features a 45° or 50° angled design relative to the vessel, ensuring smoother material discharge while increasing clearance from the vessel bottom -effectively resolving installation challenges in concave-bottom containers. |
| Rapid-Replacement Design | This Design enables flush mounting between the valve seal and vessel bottom, effectively reducing stroke while preventing material accumulation. |
| High-Gloss Stem | Universal body structure accommodates both rising stem and lowering stem configurations for flexible application scenarios. |
| Linear-Stroke Spherical Structure | Forged-welded plug & stem assembly maintains structural rigidity to prevent stem deflection under maximum thrust load. |
| High-Performance Seat | The dual-pressure system combines a single-acting spring mechanism with pneumatic assist to prevent seal leakage under vacuum conditions. |
| Multi－Application | The actuator housing is made of aluminum alloy, achieving significant weight reduction to alleviate load-bearing stress at vessel mounting interfaces while ensuring excellent corrosion resistance. |
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