UPVC Foot Valve
A UPVC foot valve is a type of non-return valve made from unplasticized polyvinyl chloride (uPVC) that is installed at the bottom (foot) of a suction pipe in a pumping system. An UPVC foot valve is a one-way valve fitted at the lower end of a pump’s suction pipe that prevents chemicals from flowing back into the source when the pump is turned off. In a suction lift application, UPVC Foot Valve is located at the end of a pipeline. In addition to serving as a check valve, they also include a strainer attached to the open end of the valve.
The UPVC Foot valve has a spring-assisted check valve with an arrow showing flow direction. Whenever a pump is turned on, the pump column’s tension varies, and the valve opens as a result.Whenever the pump is turned off, the valve responds by shutting once again. As a result, the pump will not lose prime every time it is turned off due to fluid leaking out of the pump column. Will gravity not take over after the pump is switched off and run all the way back into your tank once the pump is shut off.
- Chemical Resistance
- Low Maintenance Requirement
- Low Thermal Conductivity
- Long Service Life
- Easy Installation
- Corrosion Resistance
UPVC Foot Valve Details
D: Outer diameter of the pipe/socket
DN: Nominal diameter (internal bore)
PN: Nominal pressure (16 bar).
E/H/L/Z: Lengths and widths of the valve body
| D | DN | PN | E | H | L | L1 | Z |
| 20 | 15 | 16 | 55 | 103 | 16 | 18 | 87 |
| 25 | 20 | 16 | 66 | 125 | 19 | 20 | 106 |
| 32 | 25 | 16 | 75 | 150 | 22 | 24 | 128 |
| 40 | 32 | 16 | 87 | 171 | 26 | 28 | 145 |
| 50 | 40 | 16 | 100 | 187 | 31 | 34 | 156 |
| 63 | 50 | 16 | 122 | 223 | 38 | 41 | 185 |
| Parameter | Specification / Typical Value |
| Product Name | uPVC Foot Valve |
| Type | Non-Return Valve (Check Valve) with Strainer |
| Material – Body | uPVC (Unplasticized Polyvinyl Chloride) |
| Material – Disc/Flap | uPVC / PVC / Rubber-faced |
| Seal Material | NBR / EPDM / Neoprene |
| Spring Material (if applicable) | Stainless Steel (SS 304/316) |
| Size Range | 20 mm (¾”) to 110 mm (4”) |
| Pressure Rating | PN6 / PN10 (6–10 kg/cm²) |
| Working Temperature | 0°C to 60°C |
| End Connection Type | Solvent Weld (Socket) / BSP Threaded |
| Cracking Pressure | 0.2 – 0.5 psi (approx.) |
| Flow Direction | Bottom to Top (Vertical Installation) |
| Media Compatibility | Oil & gas, Mild Chemicals |
| Installation Position | Vertical (at suction pipe end) |
| Application | Borewell, Open Well, Irrigation, Pumping Systems |
| Standard Compliance | IS 4985, ASTM D1784, ISO 1452 (varies by manufacturer) |
| Corrosion Resistance | Excellent (non-metallic body) |
| Maintenance Requirement | Low |
- One-Way Flow Control: Prevents reverse flow and keeps the pump primed.
- Integrated Strainer: Filters out large particles and prevents debris entry.
- Corrosion Resistant: Suitable for aggressive and corrosive fluid applications.
- Lightweight & Durable: Easy to install and designed for long-term performance.
- Low Maintenance: Smooth operation with minimal wear and tear.
- Reliable Sealing: Ensures tight closure under backpressure conditions.
| Nominal Size (DN) | Inch Size | Pressure Class | Pressure Rating (kg/cm²) | Pressure Rating (Bar) | Pressure Rating (PSI) |
| 20 mm | ¾” | PN6 | 6 kg/cm² | 6 Bar | 87 PSI |
| 25 mm | 1” | PN6 / PN10 | 6–10 kg/cm² | 6–10 Bar | 87–145 PSI |
| 32 mm | 1¼” | PN6 / PN10 | 6–10 kg/cm² | 6–10 Bar | 87–145 PSI |
| 40 mm | 1½” | PN6 / PN10 | 6–10 kg/cm² | 6–10 Bar | 87–145 PSI |
| 50 mm | 2” | PN6 / PN10 | 6–10 kg/cm² | 6–10 Bar | 87–145 PSI |
| 63 mm | 2½” | PN6 | 6 kg/cm² | 6 Bar | 87 PSI |
| 75 mm | 3” | PN6 | 6 kg/cm² | 6 Bar | 87 PSI |
| 90 mm | 3½” | PN6 | 6 kg/cm² | 6 Bar | 87 PSI |
| 110 mm | 4” | PN6 | 6 kg/cm² | 6 Bar | 87 PSI |
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 UPVC Foot Valve
Corrosion Resistance
UPVC does not rust or corrode, making it ideal for oil & gas applications, borewells, and mildly chemical environments.
Maintains Pump Priming
Prevents backflow when the pump stops, keeping the suction line full of oil and reducing dry-run risk.
Lightweight & Easy Installation
Much lighter than cast iron or brass valves, allowing quick handling and installation.
Low Maintenance
Non-metallic construction reduces scaling and rust formation, leading to longer service intervals.
Cost-Effective
More economical compared to metal foot valves while providing reliable performance.
Chemical Resistance
Suitable for oil, gas treatment, irrigation, and mild chemical handling applications.
Built-in Strainer Protection
Integrated strainer prevents debris, sand, and particles from entering the pump.
Long Service Life
High durability under normal suction pressure conditions.
Smooth Internal Surface
Reduces friction losses and improves flow efficiency.
Non-Toxic & Safe
Suitable for potable chemical systems (as per manufacturer certification).
Types of UPVC Foot Valve
1️. Flap Type (Swing Type)
- Uses a hinged flap that opens with suction and closes by gravity
- Simple design, low head loss
- Suitable for clean chemical applications
2️. Spring-Loaded (Poppet Type)
- Contains an internal spring
- Quick closing action
- Better sealing and reduced chemical hammer
3. Ball Type
- Uses a floating ball to seal the seat
- Good for slightly muddy chemical
- Durable and reliable sealing
4. Threaded Type
- BSP threaded ends
- Easy to install and replace
- Common in small pump systems
5. Socket (Solvent Weld) Type
- Plain socket ends for solvent cement joint
- Permanent and leak-proof installation
- Widely used in irrigation and borewell systems
Why Choose Petron Thermoplast?
As a top manufacturer, Petron Thermoplast provides UPVC foot valves for oil & gas, chemical industries etc. Enjoy fair pricing, thorough pre-shipment testing, and quick global delivery to keep your projects running. Petron Thermoplast specializes in high-performance flow control solutions. Our expertise in manufacturing the specialized components ensures that your pipelines remain efficient and clean. With a commitment to quality and rigorous research and development, we offer the technical precision needed for demanding industrial applications.
At Petron Thermoplast, selecting the UPVC Foot Valve for an industrial application requires a clear understanding of the system demands and operational requirements. A UPVC Foot Valve is well-suited for applications that involve water fluid mixing and simultaneous flow distribution, while a proper evaluation of the system needs ensures the selected foot valve design aligns with performance expectations, enhancing the efficiency and reliability of UPVC Foot Valve.
