CPVC Gear Operated Butterfly Valve
In the field of industrial fluid control, CPVC butterfly valves are favored for their simple structure, quick operation, and relatively low flow resistance. However, when dealing with large diameters or high differential pressure conditions, manual operation with a simple handle is often insufficient. A CPVC gear operated butterfly valve is an industrial grade flow control valve designed for corrosive fluids, chemicals, and high-temperature applications. The gear mechanism allows smooth operation and precise control, especially for larger valve sizes.
In such cases, the CPVC butterfly valves become an indispensable power transmission component. It not only provides a reliable means of reducing operating effort but also plays a crucial role in boxes, enabling automation and ensuring system safety. This article takes a closer look at the different aspects of butterfly valve gear. A CPVC gear operated butterfly valve is an industrial-grade flow control valve designed for corrosive fluids, chemicals, and high-temperature applications. The gear mechanism allows smooth operation and precise control, especially for larger valve sizes.
- Chemical Resistance
- Low Maintenance Requirement
- Low Thermal Conductivity
- Long Service Life
- Easy Installation
- Corrosion Resistance
CPVC Gear Operated Butterfly Valve Details
D: Pipe outer diameter
DN: Nominal internal diameter
OP: Operating pressure range
De: Total outside diameter
Z: Valve body thickness
Di: Internal flow diameter
A: Seating surface diameter
B: Disc opening clearance
C: Lower body extension
| D | DN | OP | De | Z | Di | A | B | C |
| 50 | 40 | 0-5 | 95 | 16 | 22 | 72 | 25 | 28 |
| 63 | 50 | 0-5 | 109 | 20 | 32 | 86 | 37 | 29 |
| 75 | 65 | 0-5 | 129 | 20 | 40 | 105 | 50 | 31 |
| 90 | 80 | 0-5 | 144 | 20 | 54 | 119 | 61 | 32 |
| 110 | 100 | 0-5 | 164 | 22 | 70 | 146 | 77 | 31 |
| 140 | 125 | 0-5 | 195 | 23 | 92 | 173 | 94 | 35 |
| 160 | 150 | 0-5 | 220 | 25 | 105 | 197 | 100 | 40 |
| 225 | 200 | 0-5 | 275 | 35 | 154 | 255 | 152 | 38 |
| 280 | 250 | 0-5 | 330 | 40 | 192 | 312 | 180 | 41 |
| 315 | 300 | 0-5 | 380 | 45 | 227 | 363 | 215 | 41 |
| Parameter | Specification |
| Material (Body) | CPVC (Chlorinated Polyvinyl Chloride) |
| Disc Material | CPVC / PVC / Stainless Steel (optional) |
| Seat Material | EPDM / FKM (Viton) / PTFE |
| Stem / Shaft Material | Stainless Steel (SS304 / SS316) |
| Operation Type | Gear Operated (Worm Gear Mechanism) |
| Valve Type | Wafer Type / Lug Type / Flanged Type |
| Nominal Size Range | 2” to 24” (DN50 – DN600) |
| Connection Types | Wafer, Lug, Flanged |
| End Standards | ANSI B16.5, DIN PN10 / PN16, BS |
| Pressure Rating | PN10 / PN16 / Class 150 |
| Max Working Pressure | Up to 10–16 bar @ 23°C |
| Temperature Range | 0°C to 95°C (up to ~93°C typical) |
| Face-to-Face Standard | ISO 5752 / API 609 |
| Leakage Class | Bubble-tight shut-off |
| Flow Control | Quarter-turn operation |
| Actuation | Manual gear / Electric actuator / Pneumatic actuator (optional) |
| Density | ~1.45–1.58 g/cm³ |
| Color | Grey / Off-white |
| Corrosion Resistance | Excellent resistance to acids, alkalis, salts |
| Chemical Resistance | Suitable for aggressive and corrosive fluids |
| Surface Finish | Smooth internal surface → low friction loss |
| Thermal Resistance | Higher heat resistance than PVC |
| Mechanical Strength | Good tensile and impact strength |
| Weight | Lightweight compared to metal butterfly valves |
| Durability | Long service life, non-corrosive |
| UV Resistance | Moderate (can be improved with additives) |
1. CPVC Construction
Manufactured from Chlorinated Polyvinyl Chloride (CPVC), offering excellent resistance to corrosion, chemicals, and high temperatures.
2. Gear Operated Mechanism
Equipped with a gearbox and handwheel for smooth, controlled, and low-torque operation—especially suitable for larger valve sizes.
3. Quarter-Turn Operation
Operates with a 90° rotation for quick opening and closing of fluid flow.
4. High Temperature Resistance
Can withstand higher temperatures compared to standard PVC valves, making it ideal for hot water and process applications.
5. Leak-Proof Sealing
Designed with reliable sealing components (such as EPDM or PTFE seats) to ensure tight shut-off and prevent leakage.
6. Lightweight Design
Easier to handle and install compared to metal valves, reducing labor and installation costs.
7. Low Maintenance
Non-metallic body prevents rust and scaling, ensuring longer service life with minimal upkeep.
8. Wide Size Range
Available in multiple sizes to meet various industrial and commercial piping requirements.
9. Flanged or Wafer Type Options
Can be supplied in different connection types depending on installation needs.
Base Rating at 23 °C (73 °F)
| Valve Size (DN / inch) | Nominal Pressure Rating | Pressure @ 23 °C |
| DN50 – DN200 (2″–8″) | PN10 | 150 psi (10 bar) |
| DN250 – DN300 (10″–12″) | PN10* | 125–150 psi |
| DN350 and above (14″+) | PN6–PN10* | 90–150 psi |
| Fluid Temperature | Derating Factor | Allowable Pressure (Based on 150 psi @ 23 °C) |
| 23 °C (73 °F) | 1.00 | 150 psi (10 bar) |
| 40 °C (104 °F) | 0.80 | 120 psi (8.3 bar) |
| 60 °C (140 °F) | 0.50 | 75 psi (5.2 bar) |
| 80 °C (176 °F) | 0.25 | 38 psi (2.6 bar) |
| 93 °C (200 °F – max CPVC) | 0.10–0.15 | 15–23 psi (1–1.6 bar) |
Custom Product Manufacturing Available
If you are searching for customized product designs that meet your requirements, don’t worry. Petron Thermoplast also offers custom product manufacturing services to meet the unique needs of various industries. Work with our expert engineers to create custom designs suited for your application.
Benefits of Using CPVC Gear Operated Butterfly Valve
Easy & Smooth Operation
The gear system (handwheel) reduces operating torque, making it easier to open and close large valves with minimal effort.
Precise Flow Control
Gear operation allows gradual opening and closing, providing better control over flow regulation compared to lever-operated valves.
Excellent Corrosion Resistance
Made from CPVC, it resists chemicals, acids, alkalis, and corrosive fluids—ideal for chemical and industrial applications.
Suitable for Higher Temperatures
CPVC can handle higher temperatures than standard PVC, making it suitable for hot water and industrial process lines.
Durable & Long Service Life
CPVC material does not rust, scale, or corrode, ensuring longer operational life with minimal maintenance.
Lightweight & Easy Installation
Compared to metal valves, CPVC valves are lighter, reducing installation time and structural load on piping systems
Cost-Effective
Lower installation, maintenance, and replacement costs compared to metagear-operated valves.
Leak-Tight Sealing
Designed with tight sealing mechanisms to prevent leakage and ensure safe operation.
Types of CPVC Gear Operated Butterfly Valve
Manual Gear Operated Butterfly Valves
Manual gear-operated butterfly valves are controlled by a handwheel connected to a gear system that provides a mechanical advantage, allowing operators to control the valves with minimal effort. These valves are commonly used in applications where precise flow control is essential.
Electric Gear Operated Butterfly Valves
Electric gear-operated butterfly valves use an electric actuator to control the valve’s position. These valves are ideal for gear-operated systems and remote operation, offering precise and reliable control in various industrial settings.
Pneumatic Gear Operated Butterfly Valves
Pneumatic gear operated butterfly valves are powered by compressed air. These valves are known for their rapid response times and are often used in applications where speed and reliability are critical, such as in the pharmaceutical and food processing industries.
Hydraulic Gear Operated Butterfly Valves
Hydraulic gear operated butterfly valves utilize hydraulic fluid to control the valve’s movement. These valves are highly durable and are used in high-pressure applications, including oil and gas industries.
Featured List of Applications
Process Industry
High purity applications
Electronic Industry
Electrical Industry
Semi-conductors industry
Pharmaceutical Industry
Solar power panels
Sugar Industry
Paper & pulp Industry
Nuclear power industry
Automotive Industry
DI water plants
Why Choose Petron Thermoplast?
As we know, multiple suppliers can slow down your project and increase costs. That’s why we offer a full range of CPVC gear operated butterfly valves and adapters to ensure you have everything that you need, all from a single source. Whether you’re working on a small industry or a large scale commercial development, we can tailor a package that fits your exact requirements, saving your time and simplifying your supply chain.
