ZPR810F Series Lined Regulated Butterfly Valve consists of a pneumatic piston actuator and a PTFE-sealed butterfly valve, suitable for corrosive-demanding working conditions with temperatures ≤160℃.
Product Overview
The valve adopts thick polymer lining technology on all fluid-contact components (valve body, disc, and stem), demonstrating excellent corrosion resistance and compatibility with any concentration of acids, alkalis, salts, oxidizers, reducing agents, and organic solvents. As an ideal product for shut-off and regulation in pipelines and containers handling gases, liquids, and semifluids, it is widely used in chemical, petroleum, pharmaceutical, food, steel smelting, paper-making, and hydropower systems. The fully lined PTFE (F4) and FEP (F46) butterfly valve offers superior corrosion resistance, zero leakage, and extended service life. This corrosion-resistant butterfly valve is particularly suitable for concentrated sulfuric acid, hydrochloric acid, nitric acid, hydrofluoric acid, aqua regia, various organic acids, and other highly corrosive media.
Specifications
| Body Type | Wafer-Type (centerline) / Flange Type | |
| Size | DN50~DN1200 | |
| D&M Std. | GB/T12238, HG/T3704 | |
| F2F Std. | GB/T12221 (Short-Body Series) | |
| PT&I Std. | GB/T13927, API598 | |
| Conn. Std. | End | Wafer-Type / Flange Type |
| 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 | Sleeve Packing | |
| Materials | Body/Bonnet Material | WCB, LCB, SS304, SS316L |
| Disc Material | WCB, F304, F316L | |
| Seat Material | FEP(F46), PTFE(F4), PFA | |
| Stem Material | 17-4PH | |
| Lining Material | FEP(F46), PTFE(F4), PFA | |
| 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 | 50:1 | |
| Basic Error | w/pos.: ≤±2% | |
| Hysteresis Error | w/pos.: ≤2% | |
| Accessories | Actuator | Pneumatic Actuator ZP7000 Series |
| Electric Actuator ZP9000 Series | ||
| Main Accessories | Solenoid Valve, Limit Switch, Positioner, Air Filter Regulator | |
| Others | Manual Mechanism, Dump Valve, Air-Controlled Valve, Lock-up valve |
|
| Features | Description |
| Superior Corrosion Resistance | Independent seat assembly + fully lined flow path eliminates metallic corrosion exposure |
| Exclusive Material | Due to PTFE's non-flow characteristics, the butterfly valve is the only valve type capable of being produced with PTFE material |
| Structural Uniqueness | Split valve body design; the shaft seal is achieved through a rotating fluororubber-incorporated interface between the disc and seat |
| Customizable Disc | PTFE disc and shaft adopt square shaft insertion design, while FEP and PFA utilize flat shaft welded structure |
| Reliable Sealing Performance | Fully-lined disc and silicone gasket under the valve seat ensure reliable tight sealing performance |
| Diverse Options | Selection based on working conditions: Fully-lined butterfly valves and semi-lined butterfly valves are available |
| Standard Mounting Platform | One-piece body/bracket ensures stable operation with IS0 5211-compliant actuator mounting. |
Downloads
Control Valve Brochure
Application & Case
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