UPVC Gear Operated Butterfly Valve
The UPVC Gear Operated Butterfly Valve is a robust and efficient flow control solution, engineered for demanding fluid handling systems. Made from Unplasticized Polyvinyl Chloride (UPVC), this valve offers outstanding chemical and corrosion resistance, making it ideal for aggressive fluid media and corrosive environments. The integrated gear operator provides smooth and precise control of the valve position, allowing for effortless operation even under high pressure conditions. Its wafer-style body design enables easy installation between standard flanges, making it suitable for industrial, water treatment, and chemical process applications.
- Chemical Resistance
- Low Maintenance Requirement
- Low Thermal Conductivity
- Long Service Life
- Easy Installation
- Corrosion Resistance
UPVC 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 / Details |
| Valve Type | Butterfly Valve (Quarter-turn type) |
| Operation | Manual Gear Operated (Worm Gear with Handwheel) |
| Body Material | UPVC (Unplasticized Polyvinyl Chloride) |
| Disc Material | UPVC |
| Seat Material | EPDM / FPM (FKM) |
| Stem Material | Stainless Steel (Ensures high torque handling) |
| Size Range | 2″ to 12″ (DN50 to DN300) |
| Connection Type | Wafer Type (Fits between ANSI, DIN, JIS flanges) |
| Working Pressure | Up to 10 bar (PN10) |
| Temperature Range | 0°C to 60°C |
| Operation Angle | 0° to 90° (Quarter-turn) |
| Flow Direction | Bi-directional |
| Sealing Type | Bubble-tight shutoff |
| Gear Mechanism | Worm gear for torque reduction & precision |
| Mounting Position | Horizontal or Vertical |
| Design | Compact Face-to-Face length |
| Weight | Lightweight (Easy installation & maintenance) |
| Surface Finish | Smooth UPVC finish (Corrosion-resistant) |
| Standards | ISO / ASTM / DIN compliant |
Features and Specification of Gear Operated Butterfly Valve
- Gear-Operated Control: Manual gear mechanism ensures smooth and precise valve operation.
- Corrosion & Chemical Resistance: Ideal for use with aggressive media in harsh environments.
- Quarter-Turn Operation: Enables fast and efficient flow shut-off or regulation.
- Durable Construction: Designed for heavy-duty use with minimal maintenance.
- Bubble-Tight Sealing: Ensures zero leakage in both directions.
- Wide Application Range: Suitable for water treatment, chemical processing, irrigation, and industrial systems.
1. ANSI / ASME (API 609) Pressure Ratings
| ANSI Class | Pressure @ 38°C (100°F) | Pressure (psi) | Typical Seat Type |
| Class 150 | 19.6 bar | 285 psi | Elastomer / PTFE |
| Class 300 | 51.1 bar | 740 psi | PTFE / Metal |
| Class 600 | 102.1 bar | 1480 psi | Metal Seated |
2. PN Pressure Ratings (EN 593 / EN 1092)
| PN Class | Pressure Rating (bar) | Pressure Rating (psi) | Typical Seat Type |
| PN 6 | 6 bar | 87 psi | Rubber |
| PN 10 | 10 bar | 145 psi | Rubber / PTFE |
| PN 16 | 16 bar | 232 psi | Rubber / PTFE |
| PN 25 | 25 bar | 363 psi | PTFE |
| PN 40 | 40 bar | 580 psi | Metal Seated |
3. Pressure Rating by Seat Type
| Seat Type | Typical Pressure Limit | Common PN Class | Suitability |
| Rubber (EPDM/NBR) | Up to 16 bar | PN 6 – PN 16 | Water, General waste |
| PTFE / RTFE | Up to 25 bar | PN 10 – PN 25 | Chemicals, Low-pressure steam |
| Metal Seated | Up to 100+ bar | PN 40 – Class 600 | High temperature, Abrasive media |
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 UPVC Gear Operated Butterfly Valve
1. Smooth & Controlled Operation
The gear mechanism allows precise and smooth valve operation, making it ideal for larger pipe sizes and applications where controlled flow regulation is required.
2. Excellent Corrosion Resistance
Manufactured from high-quality UPVC, these butterfly valves offer outstanding resistance to chemicals, acids, alkalis, and saline media, ensuring long-term performance in harsh environments.
3. Reduced Operating Torque
Gear operation significantly reduces manual effort, enabling easy opening and closing even under higher pressure conditions.
4. Reliable Shut-Off Performance
Precision-engineered disc and elastomer seat provide tight sealing and leak-proof shut-off, improving process safety and system efficiency.
5. Low Maintenance Requirements
UPVC construction eliminates rust, scaling, and corrosion, resulting in minimal maintenance and reduced downtime compared to metal butterfly valves.
6. Longer Service Life
The non-corrosive nature of UPVC and reduced mechanical wear on actuating components ensure extended operational life.
7. Suitable for Large-Diameter Pipelines
Gear-operated butterfly valves are ideal for medium to large pipe sizes, where lever-operated valves become impractical.
8. Lightweight & Easy Installation
Compared to metal valves, UPVC butterfly valves are lighter in weight, making handling and installation easier while reducing pipeline load.
9. Wide Industrial Applications
Commonly used in Chemical & process industries, Water & wastewater treatment plants, Effluent treatment systems (ETP/STP), Power plants & cooling systems, Industrial utilities
10. Cost-Effective Flow Control Solution
UPVC gear operated butterfly valves provide excellent performance at a lower cost, offering a cost-effective alternative to metal valves for corrosive service applications.
Types & Connections
Types of UPVC Gear Operated Butterfly Valves
- Wafer Type UPVC Gear Operated Butterfly Valve
Designed to fit between two flanges, this compact type is widely used in industrial pipelines where space saving and easy installation are required. - Lug Type UPVC Gear Operated Butterfly Valve
Equipped with threaded lugs on the valve body, allowing it to be bolted directly to flanges. This design supports dead-end service and simplifies maintenance.
- Flanged End UPVC Gear Operated Butterfly Valve
Features integral flanges on both sides for rigid and secure mounting, suitable for high-stability pipeline systems.
Connection Types of UPVC Gear Operated Butterfly Valve
Wafer Connection
nstalled between flanges using long bolts, Compact and cost-effective, Compatible with multiple flange standards
Lug Connection
Bolted directly to pipeline flanges, Allows one side of the pipeline to be disconnected, Ideal for maintenance and isolation
Flanged Connection
Rigid, leak-proof connection, Suitable for high-load and large pipelines
Flange Standards Compatibility
UPVC gear operated butterfly valves are compatible with DIN, ANSI, BS, JIS (on request)
Operating Mechanism
Gear Box Type: Worm gear mechanism, Operation: Handwheel operated, Optional Actuation: Pneumatic / Electric actuator mounting provision
Installation Orientation
Suitable for horizontal and vertical pipelines, Flow direction is bidirectional (as per design)
Common Applications of UPVC Gear Operated Butterfly Valve
1. Chemical Processing Industries
Widely used in chemical manufacturing and processing plants for controlling corrosive fluids such as acids, alkalis, and chemical solutions due to their excellent chemical resistance.
2. Water Treatment Plants
Installed in water purification, filtration, and distribution systems for reliable flow regulation and shut-off in large-diameter pipelines.
3. Effluent Treatment Plants (ETP) & Sewage Treatment Plants (STP)
Ideal for effluent handling, wastewater treatment, and recycling systems, where corrosion resistance and low maintenance are essential.
4. Industrial Process Pipelines
Used in process water, cooling water, and utility pipelines to regulate flow in continuous industrial operations.
5. Power Plants & Cooling Systems
Commonly applied in cooling water circulation lines, helping control flow and isolate sections during maintenance.
6. Chemical Storage & Transfer Systems
Used in pipelines connected to chemical storage tanks, dosing systems, and transfer lines for secure isolation and flow control.
7. Desalination & RO Plants
Suitable for pre-treatment and low-pressure RO systems, providing smooth operation and reliable shut-off.
8. OEM & Skid-Mounted Equipment
Preferred in OEM machinery, packaged units, and skid-mounted systems due to their compact design and ease of operation.
9. Large Diameter Industrial Pipelines
Gear-operated UPVC butterfly valves are ideal for medium to large bore pipelines, where manual lever operation is not practical.
10. Industrial Utilities & Infrastructure
Used across pharma, textiles, paper, food processing (non-edible), and specialty chemical industries for dependable flow control.
How UPVC Gear Operated Butterfly Valve Works?
A UPVC Gear Operated Butterfly Valve controls fluid flow using a circular disc mounted on a central shaft, combined with a worm gear mechanism that enables smooth and controlled operation.
Step-by-Step Working Principle
The valve consists of a butterfly disc positioned in the center of the pipeline. When the handwheel is rotated, the gear mechanism turns the disc:
- Open Position: The disc rotates parallel to the flow direction, allowing fluid to pass with minimal resistance.
- Closed Position: The disc rotates perpendicular to the flow, blocking the pipeline and stopping fluid movement completely.
The worm gear box converts the manual rotation of the handwheel into controlled disc movement. This significantly reduces the operating torque, making it easy to operate even in large-diameter pipelines or under higher pressure.
Because the disc can be positioned at intermediate angles, the valve allows accurate throttling and flow regulation, not just full open or close operation.
When the valve is fully closed, the disc presses against an elastomeric seat (EPDM / FKM), creating a tight seal that prevents leakage and backflow.
UPVC gear operated butterfly valves are typically designed for bidirectional flow, offering flexibility in installation without concern for flow direction.
The combination of corrosion-resistant UPVC body, precision-engineered disc, and robust gear mechanism ensures smooth operation, minimal wear, and long service life.
Why Choose Petron Thermoplast?
Petron Thermoplast is a trusted manufacturer and supplier of UPVC Gear Operated Butterfly Valves, engineered for smooth operation, reliable shut-off, and long-term performance in demanding industrial environments.
1. Premium-Grade UPVC Construction
Our butterfly valves are manufactured using high-quality, corrosion-resistant UPVC, ensuring excellent performance in chemical, water, and industrial process applications.
2. Robust Gear Mechanism
Each valve is equipped with a heavy-duty worm gear box that provides smooth, precise control with reduced operating torque—ideal for medium to large diameter pipelines.
3. Leak-Proof & Reliable Shut-Off
Precision-engineered discs and high-performance elastomer seats (EPDM / FKM) ensure tight sealing and dependable isolation, even under continuous operation.
4. Low Maintenance & Long Service Life
UPVC construction eliminates rust, scaling, and corrosion, while the gear operation minimizes mechanical wear—resulting in minimal maintenance and extended valve life.
5. Wide Size & Connection Options
Available in multiple sizes with wafer, lug, and flanged end connections, compatible with DIN, ANSI, and other international standards.
6. Smooth Flow Control & Throttling
Our gear operated butterfly valves allow accurate flow regulation, making them suitable for both on/off and throttling applications.
7. Lightweight & Easy Installation
Compared to metal valves, UPVC gear operated butterfly valves are lighter and easier to install, reducing installation time and pipeline load.
8. Tested for Industrial Performance
Every valve undergoes strict quality checks for dimensional accuracy, sealing performance, and operational reliability before dispatch.
9. Cost-Effective for EPC & Industrial Projects
As a manufacturer, Petron Thermoplast offers competitive pricing for bulk orders, making our valves ideal for EPC contractors and OEMs.
10. Trusted Industrial Partner
With extensive experience in industrial thermoplastics, Petron Thermoplast is a preferred supplier for chemical plants, water treatment facilities, power plants, and process industries.
