CPVC Reducer Coupler
The CPVC Reducer Coupler is a straight pipe fitting designed to connect two CPVC pipes of different diameters in a single line. Manufactured from high-grade Chlorinated Polyvinyl Chloride (CPVC), it provides a secure and leak-proof transition between larger and smaller diameter pipes. Ideal for both residential and industrial piping systems, this fitting is commonly used in hot and cold water distribution lines, chemical processing systems, and industrial fluid transfer setups.
CPVC Reducer Coupler
Key Feature of CPVC Reducer Coupler
- Size Transition: Efficiently connects two pipes of different diameters for smooth flow regulation.
- High Temperature Tolerance: Suitable for use in systems with operating temperatures up to 93°C (200°F).
- Excellent Chemical Resistance: Withstands exposure to acids, alkalis, and other corrosive substances.
- Robust and Durable: High impact strength and long service life under pressure and temperature fluctuations.
- Leak-Proof Connections: Designed for solvent cement welding to ensure secure, watertight joints.
- Non-Corrosive Material: Resistant to scaling, rust, and microbial buildup.
- Potable Water Safe: Non-toxic, lead-free composition approved for use in drinking water systems.
- Easy Installation: Lightweight and compact for quick and simple installation.
Technical Details of CPVC Reducer Coupler
| Parameter | Specification |
|---|---|
| Material | CPVC (Chlorinated Polyvinyl Chloride) |
| Type | Reducer Coupler – Socket × Reduced Socket |
| Size Range | ¾” × ½” up to 6″ × 4″ |
| Connection Type | Solvent Weld Socket Ends |
| Temperature Range | 0°C to 93°C |
| Pressure Rating | Up to 10 kg/cm² at 23°C |
| Color | Light Grey / Beige |
| Standards Compliance | ASTM D2846 / ASTM F439 / IS 15778 |
| Applications | Water supply systems, chemical pipelines, industrial process piping |
| Installation Method | Solvent cement welding |
Technical Measurement of CPVC Reducer Coupler
| Size (inches) | ID-1 (mm) | OD-1 (mm) | WT-1 (mm) | SL-1 (mm) | ID-2 (mm) | OD-2 (mm) | WT-2 (mm) | SL-2 (mm) | H (mm) |
|---|---|---|---|---|---|---|---|---|---|
| ¾ x ½ | 26.97 | 34.79 | 3.91 | 25.40 | 21.64 | 29.10 | 3.73 | 22.23 | 56 |
| 1 x ½ | 33.78 | 42.88 | 4.55 | 28.58 | 21.64 | 29.10 | 3.73 | 22.23 | 62 |
| 1 x ¾ | 33.78 | 42.88 | 4.55 | 28.58 | 26.97 | 34.79 | 3.91 | 25.40 | 63 |
| 1¼ x ½ | 42.55 | 52.25 | 4.85 | 31.75 | 21.64 | 29.10 | 3.73 | 22.23 | 68 |
| 1¼ x ¾ | 42.55 | 52.25 | 4.85 | 31.75 | 26.97 | 34.79 | 3.91 | 25.40 | 68 |
| 1¼ x 1 | 42.55 | 52.25 | 4.85 | 31.75 | 33.78 | 42.88 | 4.55 | 28.58 | 67 |
| 1½ x ½ | 48.72 | 58.88 | 5.08 | 34.93 | 21.64 | 29.10 | 3.73 | 22.23 | 74 |
| 1½ x ¾ | 48.72 | 58.88 | 5.08 | 34.93 | 26.97 | 34.79 | 3.91 | 25.40 | 75 |
| 1½ x 1 | 48.72 | 58.88 | 5.08 | 34.93 | 33.78 | 42.88 | 4.55 | 28.58 | 75 |
| 1½ x 1¼ | 48.72 | 58.88 | 5.08 | 34.93 | 42.55 | 52.25 | 4.85 | 31.75 | 74 |
| 2 x ½ | 60.78 | 71.86 | 5.54 | 38.10 | 21.64 | 29.10 | 3.73 | 22.23 | 84 |
| 2 x ¾ | 60.78 | 71.86 | 5.54 | 38.10 | 26.97 | 34.43 | 3.73 | 25.40 | 85 |
| 2 x 1 | 60.78 | 71.86 | 5.54 | 38.10 | 33.78 | 42.88 | 4.55 | 28.58 | 85 |
| 2 x 1¼ | 60.78 | 71.86 | 5.54 | 38.10 | 42.55 | 52.25 | 4.85 | 31.75 | 83 |
| 2 x 1½ | 60.78 | 71.86 | 5.54 | 38.10 | 48.72 | 58.88 | 5.08 | 34.93 | 83 |
| 2½ x 2 | 73.56 | 87.58 | 7.01 | 44.45 | 60.78 | 71.86 | 5.54 | 38.10 | 104 |
| 3 x 2 | 89.31 | 105.55 | 7.62 | 48.63 | 60.78 | 88.54 | 5.54 | 44.45 | 106 |
| 3 x 2½ | 89.51 | 105.55 | 7.62 | 48.63 | 73.38 | 88.54 | 7.01 | 44.45 | 107 |
- ID-1 – Inside Diameter – Larger End
- OD-1 – Outside Diameter – Larger End
- WT-1 – Wall Thickness – Larger End
- SL-1 – Socket Length – Larger End
- ID-2 – Inside Diameter – Smaller End
- OD-2 – Outside Diameter – Smaller End
- WT-2 – Wall Thickness – Smaller End
- SL-2 – Socket Length – Smaller End
- H – Height – Total vertical dimension of the reducer coupler fitting

Customization & Processing Options
Customizations Option Available for CPVC Reducer Coupler
At Petron Thermoplast, we offer customized PVDF fittings to meet your specific system requirements.
Customization options include:
- Tailor-made dimensions and wall thicknesses
- Custom-molded and machined PVDF fittings
- Pre-fabricated manifolds and assemblies
- Choice of connection type (butt fusion, socket fusion, or flanged)
- OEM branding or marking options
