CPVC Reducer Bushing

A CPVC Reducer Bushing is a type of pipe fitting made from Chlorinated Polyvinyl Chloride (CPVC) that is used to connect pipes or fittings of different diameters. It is designed to fit inside a larger socket fitting and reduce the connection to a smaller pipe size. The outer side of the reducer bushing fits into a larger CPVC fitting, while the inner socket allows the connection of a smaller CPVC pipe. This fitting helps maintain proper fluid flow while adapting the pipeline to different pipe sizes.

CPVC reducer bushings are used to join metal pipes of different diameters by reducing the inner diameter of the pipe. CPVC reducer bushings with male and female NPT threaded ends are available from pressure connections and fittings (SHF). CPVC Reducer Bushings need to be in good shape to reduce rapid tire wear and steering or braking problems. A CPVC reducer bushing is a zinc component that is screwed into a port and then has a threaded hole.

CPVC Reducer Bushing Details

ID-1 – Larger Inner Diameter
ID-2 – Smaller Inner Diameter
SL – Socket Length
L – Length
H – Height

Size (Inch)	ID-1 (mm)	ID-2 (mm)	SL (mm)	L (mm)	H (mm)
¾ x ½	26.97	21.64	22.23	34	28
1 x ½	33.78	21.64	22.23	43	32
1 x ¾	33.78	26.97	25.40	43	32
1¼ x ½	42.55	21.64	22.23	53	35
1¼ x ¾	42.55	26.97	25.40	53	35
1¼ x 1	42.55	33.78	28.58	53	35
1½ x ½	48.72	21.64	22.23	58	37
1½ x ¾	48.72	26.97	25.40	58	37
1½ x 1	48.72	33.78	28.58	58	37
1½ x 1¼	48.72	42.55	31.75	58	37
1½ x 1½	48.72	48.72	22.23	58	37
2 x ¾	60.78	26.97	25.40	72	43
2 x 1	60.78	33.78	28.58	72	43
2 x 1¼	60.78	42.55	31.75	72	43
2 x 1½	60.78	48.72	34.93	72	43
2½ x 2 (CTS)	73.56	60.78	38.10	80	56
2½ x 2	73.56	60.78	38.10	80	56
3 x 2 (CTS)	89.50	60.78	38.10	98	56
3 x 2	89.50	60.78	38.10	98	56
3 x 2½	89.50	73.56	44.45	98	56
4 x 2 (CTS)	114.99	60.78	38.10	123	66
4 x 2	114.99	60.78	38.10	123	66
4 x 2½	114.99	73.56	44.45	123	66
4 x 3	114.99	89.50	47.63	123	66
6 x 3	167.92	89.31	48.00	170.8	85.5
6 x 4	167.92	114.76	51.00	170.8	85.5

Property	Details
Product Type	Reducer Bushing (Reducing fitting)
Function	Connects pipes of different diameters (reduces size)
Material	CPVC (Chlorinated Polyvinyl Chloride)
Design	Spigot × Socket / Spigot × Female Thread (FNPT)
Connection Type	Solvent weld / Threaded
Size Range	½” × ¼” up to 4” × 3”
Schedule	SCH 40 / SCH 80
Pressure Rating	Up to ~235 psi (≈16 bar) at 23°C
Temperature Range	0°C to 93°C (≈200°F max)
Standards	ASTM F439, ASTM D2846
Color	Grey / off-white
Manufacturing Process	Injection molded
Applications	Chemical piping, water supply systems
Density	~1.50 – 1.60 g/cm³
Tensile Strength	~50 – 60 MPa
Flexural Strength	~90 – 110 MPa
Modulus of Elasticity	~2400 – 3000 MPa
Impact Strength	Moderate to high
Hardness	~80–85 Shore D
Water Absorption	≤ 0.04%
Heat Deflection Temp	~90–105°C
Thermal Conductivity	Low (good insulation)
Weight	Lightweight (e.g., ~0.02–0.13 kg depending on size)

Size Reduction Design
CPVC reducer bushings are designed to connect pipes or fittings of different diameters, allowing smooth transition from a larger size to a smaller size.
High Temperature Resistance
They can handle high temperatures, making them suitable for both hot and cold fluid systems.
Excellent Chemical Resistance
CPVC material resists many chemicals, acids, and alkalis, making it ideal for industrial and chemical applications.
Corrosion and Rust Free
These fittings do not corrode or rust like metal fittings, ensuring long service life.
Strong and Durable
CPVC reducer bushings provide high mechanical strength and durability for long-term use.
Smooth Internal Surface
The smooth interior surface reduces friction loss and helps maintain efficient fluid flow.
Lightweight Construction
CPVC fittings are lightweight, making them easy to handle, transport, and install.
Leak-Proof Joint
When installed with solvent cement, they create a strong and leak-resistant connection.
Low Maintenance Requirement
Due to their corrosion resistance and durability, they require minimal maintenance.
Suitable for Industrial Applications
Widely used in chemical processing, water treatment, and industrial piping systems.

Pipe Size	Pressure Rating at 23°C (73°F)	Pressure Rating at 60°C (140°F)
½ inch	400 – 450 PSI	180 – 200 PSI
¾ inch	370 – 400 PSI	170 – 190 PSI
1 inch	350 – 370 PSI	160 – 180 PSI
1½ inch	320 – 340 PSI	150 – 170 PSI
2 inch	300 – 320 PSI	140 – 160 PSI
3 inch	260 – 280 PSI	120 – 140 PSI
4 inch	230 – 250 PSI	100 – 120 PSI

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 Reducer Bushing

Size Reduction Capability

CPVC reducer bushings allow easy connection between pipes or fittings of different diameters, helping reduce pipe size in a piping system.

Excellent Chemical Resistance

They resist many chemicals, acids, and alkalis, making them suitable for chemical processing and industrial applications.

High Temperature Resistance

CPVC material can withstand high temperatures, making it suitable for hot and cold fluid systems.

Corrosion and Rust Resistance

Unlike metal fittings, CPVC reducer bushings do not rust or corrode, which increases their service life.

Lightweight and Easy Handling

CPVC fittings are lightweight, making transportation, installation, and handling easier.

Leak-Free Connection

When installed with solvent cement, CPVC reducer bushings provide strong and leak-proof joints.

Low Maintenance

Due to their durability and corrosion resistance, they require minimal maintenance over time.

Cost-Effective Solution

CPVC reducer bushings are generally more economical compared to metal reducing fittings while offering reliable performance.

Types of CPVC Reducer Bushing

Socket × Socket Reducer Bushing

This is the most common type. It has a larger outer socket and a smaller inner socket used to connect a smaller pipe into a larger fitting using solvent cement.

Spigot × Socket Reducer Bushing

In this type, the outer end is a spigot (plain end) that fits into a larger fitting, while the inner side has a socket to connect a smaller pipe.

Flush Style Reducer Bushing

This type is designed to sit flush inside the fitting, creating a smooth and compact connection within the piping system.

Heavy Duty Reducer Bushing

Designed for high-pressure industrial applications where stronger and more durable fittings are required.

Industrial Grade CPVC Reducer Bushing

These bushings are specially designed for chemical processing plants, water treatment systems, and other industrial piping applications requiring high chemical resistance.

Applications of CPVC Reducer Bushing

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?

Petron Thermoplast provides the CPVC Reducer Bushing, which is not simply an upgraded version of a reducer bushing but a specialized bushing designed for piping systems with high maintenance and stability requirements. Its double-joint structure achieves Quick assembly and disassembly, Reduced maintenance costs, Improved system reliability, Extended pipeline lifespan.

In modern plastic piping engineering, double-joint CPVC Reducer Bushings have become a standard feature in oil, gas treatment, chemical, and industrial fluid systems.