ZPL520F Lined Three-Way Control Valve. The valve consists of an actuator and a lined three-way control valve body. The wetted surfaces (valve interior and internals) are lined with 3~5mm thick fluoropolymer via high-temperature molding.
Product Overview
The metal valve body features V-groove reinforced treatment to ensure complete bonding between the lining and base metal, fully isolating corrosive media from metallic contact. This design effectively prevents corrosion on all metal components while enhancing the longevity and performance of the lining system. This product delivers excellent sealing performance, responsive actuation, and precise flow characteristics, making it widely suitable for handling highly corrosive media including acids, alkalis, salts, as well as volatile and permeative gases/liquids

Specifications
| Body Type | 3-Way Converging/Diverting Type | |||
| Size | DN15~DN350 | |||
| D&M Std. | GB/T4213, HG/T3704 | |||
| F2F Std. | GB/T12221, HG/T3704 | |||
| PT&I Std. | GB/T4213, API598 | |||
| Connection Standards | Flange Sealing Face | RF Type, FM/M Type, T/G Type, FF Type | ||
| HG/T20592 | PN10, PN16, PN25 | |||
| ASME B16.5 | 150LB | |||
| Sealing Type | Seat Type | Soft Seat | ||
| Stem Sealing Type | Packing Sealing, Bellows 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 | |||
| Bellows Material | "Daikin" TFM-1600 | |||
| Packing Material | PTFE | |||
| Technical Parameters | Temperature Range | FEP/F46 | -30℃~+120℃ | Acids, Alkalis, Salts, and highly corrosive media |
| PTFE/F4 | -30℃+150℃ | |||
| PFA | -60℃~+180℃ | |||
| Flow Characteristic | Equal percentage (EQ%) / Linear (LIN) / Quick opening (QO) | |||
| Leakage Level | IEC 60534-4, ANSI FCI 70-2, ASME B16.104 | |||
| Rangeability | 50:1 | |||
| Basic Error | w/o pos.: ≤±8% w/pos.: ≤±1.5% | |||
| Hysteresis Error | w/pos.: ≤1.5% | |||
| Dead Band | w/o pos.: ≤6% w/pos.: ≤0.5% | |||
| Accessories | Actuator | Pneumatic Actuator ZP6100 Series, ZP6200 Series |
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| Electric Actuator ZP8000 Series | ||||
| Main Accessories | Positioner, Air Filter Regulator, Handwheel | |||
| Others | Limit Switch, Solenoid Valve, Position Transmitter, Volume booster, Lock-up valve | |||
| Features | Description |
| Superior Corrosion Resistance | V-groove reinforced full-lined flow path with compression-molded internals blocks corrosive media |
| Rigid Stem Design | Monobloc plug/stem construction with contoured plug profile delivers precision flow characteristics |
| Vibration-Damping Design | The extended guide bonnet design ensures precise valve stroke control and enhances stem rigidity. and effectively prevents vibration. |
| Hazardous Media Isolation | Integrated bellows design ensures zero external leakage with superior sealing performance, featuring a wide elastic deformation range and excellent corrosion resistance. |
| Adhesion Guarantee | The perforated reinforcement pattern on the disc/seat assembly enhances fluoropolymer-metal interfacial bonding. Achieving tight sealing performance |
| Reliable Sealing Performance | The V-ring packing design delivers excellent sealing with low operating torque. Dual O-rings in the gland structure prevent media leakage along the valve stem. |
| Simplified Seat Design | The valve bottom can be converted to a three-way seat, offering excellent versatility for multi-purpose applications. |
Downloads

Application & Case
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