The ZPRX740F Lined Inclined Stem Discharge Ball Valve is a specially designed discharge valve primarily used for bottom discharge in reaction vessels. All wetted surfaces, including the valve body interior and internal components, are lined with corrosion-resistant and aging-resistant fluoropolymers (such as FEP/PFA) through high-temperature molding, ensuring reliable corrosion resistance and sealing performance.
The valve features an innovative Inclined stem design with a 105° inclination angle between the stem and valve body, which prevents interference between the actuator and vessel bottom during installation. When closed, the arc-shaped ball sealing surface precisely matches the curved flange connected to the vessel bottom, effectively preventing material residue. With excellent sealing performance, material nonaccumulation characteristics, and responsive operation. This product is widely used for controlling highly corrosive media such as acids, alkalis, and salts.
| Body Type | Straight-Through Type | |||
| Size | DN15~DN350 | |||
| D&M Std. | GB/T12237, HG/T3704 | |||
| F2F Std. | GB/T12221, HG/T3704, ANSI B16.10 | |||
| PT&I Std | GB/T13927, API598 | |||
| Conn.Std. | Flange Sealing Face | RF Type, FM/M Type, T/G Type, FF Type | ||
| 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 | ||
| Ball Material | WCB, F304, F316L | |||
| Stem Material | WCB, F304, F316L | |||
| Lining Material | FEP(F46), PTFE(F4), PFA | |||
| Packing Material | PTFE | |||
| Temperature Range |
FEP/F46 | -30℃~+120℃ | Acids, Alkalis, Salts, and highly corrosive media | |
| PTFE/F4 | -30℃+150℃ | |||
| PFA | -60℃~+180℃ | |||
| Technical Parameters | Flow Characteristic | Equal percentage(EQ%) / Linear(LIN) / Quick opening(QO) | ||
| Leakage Level | EC 60534-4, ANSI FCI 70-2, ASME B16.104 | |||
| Rangeability | 200:1 | |||
| Basic Error | w/pos.: ≤±2% | |||
| Hysteresis Error | w/o pos.: ≤2% | |||
| Max.Rotation | 90° | |||
| Accessories | Actuator | Pneumatic Actuator ZP7100 Series | ||
| Electric Actuator ZP9000 Series | ||||
| Main Accessories | Positioner, Air Filter Regulator, Manual Mechanism | |||
| Others | Solenoid Valve, Limit Switch, Dump Valve, Air-Controlled Valve, Lock-up Valve | |||
| Features | Description |
| Superior Corrosion Resistance | V-groove reinforced full-lined flow path with compression-molded internals blocks corrosive media |
| High-Rigidity Plug & Stem | Forged-welded ball & stem assembly ensures structural rigidity while eliminating casting imperfections |
| Non-Interference Design | The 15° angled valve stem effectively prevents interference between the actuator and vessel, while avoiding material accumulation at the outlet |
| Micro-Clearance Fit Structure | Micro-clearance insert design for body/bonnet/packing box prevents fluoropolymer deformation, eliminating external leakage |
| Adhesion Guarantee | The perforated reinforcement pattern on the ball enhances fluoropolymer-metal interfacial bonding, achieving tight sealing performance |
| Reliable Sealing Performance | Daikin TFM-1600 seats & V-packing for superior sealing with low torque Dual O-rings for leak-proof reliability |
| Standard Mounting Platform | One-piece body/bracket ensures stable operation with ISO 5211-compliant actuator mounting |
| High-StrengthStem Connection | The connection shaft is manufactured from Grade 45 steel or 2Cr13 alloy through hot-forging and CNC center machining, ensuring precise fit and enhanced rigidity. |
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