Plastic Ball Valves
Plastic ball valves are used for flow shut‑off in transmission of corrosive media. All components are assembled from injection‑molded parts of RPP, UPVC, PVDF, CPVC and PPH, delivering excellent corrosion resistance. The sealing ring is made of F4 with superior corrosion resistance to extend service life. Plastic ball valves are mainly applied for normal‑temperature, normal‑pressure and low‑pressure working conditions, suitable for various corrosive or particle‑containing media. They realize automatic control for pipelines transporting hydrochloric acid, sulfuric acid, various electroplating solutions, oils, coal gas, LPG, aromatic solvents, aliphatic solvents and more. Union‑type plastic ball valves are widely used in automatic pipeline media control for agricultural machinery, medical devices, biopharmacy, chemical industry, sewage treatment equipment and tank‑mounted equipment.
The valve body material is non‑toxic with strong corrosion resistance, light weight and wide application scope. It is adopted in pure‑water and drinking‑water pipeline systems, drainage and sewage pipeline systems, salt‑water and seawater pipeline systems, acid‑alkali and chemical solution systems and other industries.

Performance Features
Operating temperature for chemical pipelines: -20℃~65℃;
Operating temperature for water‑supply pipelines: -20℃~55℃;
Flame retardancy: Self‑extinguishing;
Hygiene performance: Water‑supply pipeline system complies with GB/T17219;
Low cost: Low material cost, varies under different working conditions;
Corrosion resistance: Excellent anti‑corrosion performance, refer to product chemical‑resistance table for details;
High pressure resistance: Burst pressure is 4‑5 times of working pressure to guarantee system safety;
High toughness: Excellent strength and toughness, resistant to damage caused by external force or large internal‑pressure fluctuation;
Smooth pipe wall: Low friction resistance during fluid transportation, inhibits bacterial growth, reduces medium adhesion;
Aging resistance: Good chemical stability. Practical service life of UPVC exceeds 50 years verified by material tests and global engineering cases;
Good thermal insulation: Low thermal conductivity, about 1/200 of steel, saves thermal‑insulation material and construction cost;
Light weight: 1/5 of steel pipe and 1/6 of copper pipe, easy for transportation and installation, saves time and cost;
Convenient installation: Available for bonding, flange, thread and welding connections;
Comprehensive performance: Low cost, smooth inner & outer surface, rust‑proof, scale‑resistant, good corrosion resistance, easy installation, non‑heat‑conductive, non‑electric‑conductive, self‑extinguishing, high mechanical strength and wide adaptability.
Technical Parameters
| Nominal Diameter | DN15‑DN100 |
| Nominal Pressure | 1.0MPa |
| Applicable Temperature | 0℃‑65℃ |
| Applicable Media | Water, oil, gas, acid and alkali etc. |
| Valve Body Material | UPVC |
| Connection Type | Double union |
Features
1. Light‑weight body for easy installation, wear‑resistant, easy disassembly and simple maintenance. Low material consumption, compact installation dimension, fast 90‑degree rotary switching and low driving torque.
2. Excellent strength and toughness, outstanding chemical corrosion resistance, self‑extinguishing property, low thermal conductivity at 1/200 of steel.
3. Superior aging‑resistance and UV‑resistance, much longer service life than ordinary valves under normal working conditions.
Main Parts Material
| No | Part Name | Material |
| 1 | Handle | Alloy material |
| 2 | Sealing Ring | EPDM, FPM |
| 3 | Valve Stem | FRPP/PVDF/CPVC/UPVC/PPH |
| 4 | Ball | FRPP/PVDF/CPVC/UPVC/PPH |
| 5 | Sealing Ring | EPDM |
| 6 | Threaded Joint | FRPP/PVDF/CPVC/UPVC/PPH |
| 7 | Nut | FRPP/PVDF/CPVC/UPVC/PPH |
| 8 | Inner Plug | FRPP/PVDF/CPVC/UPVC/PPH |
| 9 | Ball Seal | PTFE |
| 10 | Valve Body | FRPP/PVDF/CPVC/UPVC/PPH |
| 11 | Sealing Ring | EPDM, FPM |
| 12 | Threaded Joint | FRPP/PVDF/CPVC/UPVC/PPH |
| 13 | Nut | FRPP/PVDF/CPVC/UPVC/PPH |
Overall Dimensions
| DN | d | D | D1 | L | L1 | L2 | H | Weight(KG) |
| 15 | 20 | 32 | 50 | 39 | 77 | 110 | 55 | 0.18 |
| 20 | 25 | 38 | 58 | 46 | 87 | 126 | 65 | 0.28 |
| 25 | 32 | 45 | 70 | 50 | 96 | 140 | 70 | 0.39 |
| 32 | 40 | 55 | 85 | 55 | 110 | 160 | 90 | 0.66 |
| 40 | 50 | 65 | 98 | 60 | 120 | 170 | 100 | 0.92 |
| 50 | 63 | 80 | 124 | 68 | 140 | 190 | 110 | 1.65 |
| 65 | 75 | 96 | 135 | 68 | 158 | 230 | 115 | 2.41 |
| 80 | 90 | 110 | 158 | 100 | 207 | 280 | 120 | 4 |
| 100 | 100 | 130 | 192 | 124 | 238 | 340 | 130 | 6.7 |
Types of Plastic Ball Valves
UPVC Plastic Ball Valves: The main material of the valve body is full-plastic UPVC (unplasticized polyvinyl chloride). The valve body is light in weight, strong in corrosion resistance, compact and beautiful in appearance. It is easy to install due to its light weight, has a wide application range, and the material is hygienic and non-toxic. It is wear-resistant, easy to disassemble and maintain, and suitable for direct drinking water systems.
CPVC Plastic Ball Valves: The main material of the valve body is full-plastic CPVC (chlorinated polyvinyl chloride), which has the advantages of compact structure, wear resistance, and simple and easy maintenance. The valve body material is hygienic and non-toxic, strong in corrosion resistance, light in weight, and has a wide application range. For example, it is used in pure water and drinking water pipeline systems, drainage and sewage pipeline systems, brine and seawater pipeline systems, hydrochloric acid and chemical solution systems and other industries.
FRPP Plastic Ball Valves: The main material of the valve is full-plastic FRPP (reinforced polypropylene). Its products have good toughness, high strength, excellent processing performance, good creep resistance at high temperatures, and have the unique advantage of high transparency of reinforced polypropylene. It can be widely used in the production of pipes, sheets, daily necessities, packaging materials, household appliance parts and various films, and is suitable for hot water.
PVDF Plastic Ball Valves: The main material of the valve body is full-plastic PVDF (polyvinylidene fluoride). PVDF has good chemical stability, excellent chemical corrosion resistance and good heat stability, and can be used for a long time in the temperature range of -62℃ to 150℃. At the same time, it has a large dielectric constant and is one of the good insulating materials. It can resist all salts, acids, alkalis, halogens and other media except hydrochloric acid and strong solvents. It is non-flammable, resistant to fatigue fracture, wear-resistant, and has good self-lubricating performance.

















