CPVC Spigot Flange
The CPVC Spigot Flange is a high-performance flange designed to connect CPVC piping systems securely and reliably. It features a spigot end that fits directly into a socket or coupling, ensuring a leak-proof bond using solvent cement. This flange provides a flat surface to bolt with other flanged components like valves, tanks, or pumps, making it ideal for detachable pipe connections in industrial and commercial piping systems. Manufactured from Chlorinated Polyvinyl Chloride (CPVC), the spigot flange offers excellent mechanical strength, high-temperature resistance, and superior chemical resistance.
A CPVC Spigot Flange is a pipe fitting that is used to connect CPVC piping systems to flanged equipment, valves, or other flanged pipes. The spigot end of the flange is designed to be inserted into a CPVC socket fitting or pipe and joined using solvent cement, while the flange side is bolted to another flange using bolts and a gasket to create a secure and leak-proof connection. It is commonly used in industrial piping, water supply systems, and chemical processing lines where a detachable and strong pipeline connection is required.
- Chemical Resistance
- Low Maintenance Requirement
- Low Thermal Conductivity
- Long Service Life
- Easy Installation
- Corrosion Resistance
CPVC Spigot Flange Details
Size (Inch) → Nominal Pipe Size (in inches)
ID → Inner Diameter
OD → Outer Diameter
WT → Wall Thickness
SL → Socket Length
H → Height
L → Length
PCD → Pitch Circle Diameter
| Size (Inch) | ID (mm) | OD (mm) | WT (mm) | SL (mm) | H (mm) |
| ½” | 21.64 | 29.10 | 3.73 | 22.23 | 42 |
| ¾” | 26.97 | 34.79 | 3.91 | 25.40 | 58 |
| 1″ | 33.78 | 42.88 | 4.55 | 28.58 | 66 |
| 1¼” | 42.55 | 52.25 | 4.85 | 31.75 | 80 |
| 1½” | 48.72 | 58.88 | 5.08 | 34.93 | 90 |
| 2″ | 60.78 | 71.86 | 5.54 | 38.10 | 115 |
| 2½” | 73.56 | 87.58 | 7.01 | 44.45 | 132 |
| 3″ | 89.50 | 113.74 | 7.62 | 47.63 | 150 |
| 4″ | 114.99 | 132.11 | 8.56 | 57.15 | 182 |
| 6″ | 153.88 | 168.10 | 7.11 | 77.25 | 250 |
| Property | Description |
| Product Name | CPVC Socket |
| Material | Chlorinated Polyvinyl Chloride (CPVC) |
| Connection Type | Socket (Solvent Weld Joint) |
| Size Range | ½” to 4” (15 mm to 110 mm) |
| Pressure Rating | SCH 40 / SCH 80 / PN10 / PN16 |
| Temperature Range | Up to 93°C |
| Standards | ASTM D2846, ASTM F441, DIN, ISO |
| Color | Light grey / cream |
| Application | Plumbing, hot & cold water systems, chemical handling, HVAC |
| Density / Specific Gravity | 1.45 – 1.58 g/cm³ |
| Water Absorption | 0.03 – 0.05% |
| Surface Finish | Smooth, non-porous |
| Appearance | Opaque, glossy |
| Odor | Odorless |
| Hardness (Rockwell) | ~119 |
| Thermal Conductivity | ~0.14 W/m·K |
| Vicat Softening Temp | ~100–105°C |
Secure Flanged Connection
Allows easy assembly and disassembly of piping systems using standard bolts and gaskets.
High Chemical Resistance
Resistant to acids, alkalis, salts, and other aggressive chemicals—ideal for industrial chemical transport.
High Temperature Tolerance
Handles fluid temperatures up to 93°C (200°F), making it suitable for hot fluid handling systems.
Durable and Long-Lasting
Built from high-quality CPVC material to provide high impact resistance and long-term durability.
Corrosion-Proof
Does not rust, pit, or scale—making it a superior alternative to metal flanges in corrosive environments.
Easy to Install
Spigot end simplifies joining to socket fittings using solvent welding for a leak-proof connection.
Low Maintenance
With minimal wear and corrosion, it reduces maintenance costs and downtime.
| Pipe Size (Inch) | Pipe Size (mm) | Pressure Rating (psi) | Pressure Rating (bar) | Temperature Limit |
| ½” | 15 mm | 150 psi | 10.3 bar | Up to 93°C |
| ¾” | 20 mm | 150 psi | 10.3 bar | Up to 93°C |
| 1″ | 25 mm | 150 psi | 10.3 bar | Up to 93°C |
| 1¼” | 32 mm | 150 psi | 10.3 bar | Up to 93°C |
| 1½” | 40 mm | 150 psi | 10.3 bar | Up to 93°C |
| 2″ | 50 mm | 150 psi | 10.3 bar | Up to 93°C |
| 2½” | 65 mm | 150 psi | 10.3 bar | Up to 93°C |
| 3″ | 80 mm | 150 psi | 10.3 bar | Up to 93°C |
| 4″ | 100 mm | 150 psi | 10.3 bar | Up to 93°C |
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 Spigot Flange
Strong and Secure Connection
CPVC spigot flanges provide a strong bolted connection between pipes, valves, and equipment, ensuring a reliable joint.
Easy Installation and Removal
The flanged design allows easy assembly and disassembly, which simplifies maintenance and system modifications.
Corrosion Resistance
Made from CPVC material, the flange is highly resistant to corrosion, rust, and chemical reactions.
High Temperature Resistance
CPVC spigot flanges can handle temperatures up to 93°C, making them suitable for hot and cold fluid systems.
Leak-Proof Sealing
When used with a gasket and bolts, the flange provides a tight and leak-free seal.
Lightweight Material
CPVC flanges are lighter than metal flanges, making them easier to transport and install.
Chemical Resistance
They are resistant to many acids, alkalis, and salts, which makes them ideal for industrial and chemical piping systems.
Long Service Life
Due to their durability and resistance to scaling and corrosion, CPVC spigot flanges have a long operational life.
Smooth Flow Performance
The smooth inner surface helps reduce friction and prevents scaling or buildup inside the pipeline.
Cost-Effective Solution
CPVC spigot flanges reduce installation and maintenance costs compared to metal flange systems.
Types of CPVC Spigot Flange
Standard CPVC Spigot Flange
This is the most common type used in CPVC piping systems. It has a spigot end for solvent cement joining and a flanged face for bolting with another flange.
CPVC Spigot Flange with Backing Ring
In this type, the CPVC spigot flange is used together with a metal or plastic backing ring that provides additional strength and support for bolting.
CPVC Spigot Flange with Rubber Gasket
This flange type uses a rubber gasket between two flange faces to ensure a tight and leak-proof seal in the piping system.
Heavy Duty CPVC Spigot Flange
Designed for industrial applications where higher mechanical strength and durability are required.
Industrial Grade CPVC Spigot Flange
Used in chemical processing, water treatment plants, and industrial pipelines where chemical resistance and reliability are important.
Applications of CPVC Spigot Flange
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?
The Petron Thermoplast CPVC Spigot Flange is a versatile and reliable type of flange that is used in a variety of industrial applications. They offer precise over fluid flow control, are easy to maintain, and are available in a variety of materials and configurations. While they may not be suitable for use in high-temperature or high-pressure applications.
They are an ideal choice for applications requiring precise control over fluid flow and low maintenance requirements. When it comes to industrial-grade systems, the choice of the right manufacturer is as important as the material itself. Petron Thermoplast has earned a reputation as a trusted global leader in the field of CPVC Spigot Flange and industrial flow solutions. Our products are known for precision, performance, and durability, designed to meet the most demanding industry standards across the chemical and infrastructure sectors.
