UPVC Vitroling Reducer Coupler

The UPVC Vitroling Reducer Coupler is a high-performance pipe fitting designed to connect two pipes of different diameters while maintaining a straight-line flow. Manufactured from durable Unplasticized Polyvinyl Chloride (UPVC), this reducer coupler is engineered for precision and strength in demanding fluid systems. It is ideal for applications in water supply, irrigation, chemical transport, and industrial piping networks where corrosion resistance and dimensional accuracy are critical.

UPVC Vitroling Reducer Coupler Details

ID: Internal Diameter (Socket)
OD: Outside Diameter
WT: Wall Thickness
SL: Socket Length (Insertion Depth)
H: Total Overall Height/Length of the fitting

Size (Inch)	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	66
1 x ¾	33.78	42.88	4.55	28.58	26.97	34.79	3.91	25.40	65
1¼ x ½	42.55	52.25	4.85	31.75	21.64	29.10	3.73	22.23	69
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	68
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	76
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	85
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	16.24	48.63	60.78	88.54	27.76	48.93	104
3 x 2½	89.51	104.75	7.62	47.63	73.38	83.70	5.16	44.45	107

Parameter	Details
Material	UPVC (Unplasticized Polyvinyl Chloride)
Type	Reducer Coupler (Vitroling)
Size Range	½” × ¾” to 6” × 4” (15 mm × 20 mm to 160 mm × 110 mm)
Connection Type	Solvent Weld Socket Ends
Operating Pressure	Up to 10 bar (150 psi)
Temperature Range	0°C to 60°C (32°F to 140°F)
Color	Typically Grey
Standards Compliance	ASTM D2467, ISO, DIN

Efficient Pipe Size Transition: Joins different pipe sizes seamlessly in a straight direction.
Rigid & Durable Structure: Withstands mechanical stress and high flow conditions.
Chemical & Corrosion Resistant: Suitable for aggressive chemicals and fluids.
Smooth Internal Surface: Reduces pressure loss and ensures smooth flow.
Leak-Proof Jointing: Compatible with solvent cement welding for secure connections.
Low Maintenance: Non-reactive material resists scaling and biofouling.

uPVC Pressure Class and Application Guide

Pressure Class	Max Working Pressure @ 20°C	Max Working Pressure (psi)	Typical Application
PN6	6 bar	~87 psi	Low-pressure irrigation, drip systems
PN10	10 bar	~145 psi	Medium-pressure irrigation, fertigation
PN16	16 bar	~232 psi	High-pressure water supply, industrial use

uPVC Temperature Derating Chart

Fluid Temperature	Pressure Reduction
20°C	100% rated pressure
30°C	~90%
40°C	~75–80%
50°C	~60–65%
60°C (max)	~40–50% (Varies by manufacturer)

Property	Description
Material	Unplasticized Polyvinyl Chloride (uPVC)
Manufacturing Process	Injection moulded (vitrioling type)
Colour	Grey / Dark grey
Density	1.38 – 1.45 g/cm³
Weight	Lightweight compared to metal fittings
Surface Finish	Smooth, non-porous
Internal Bore	Smooth, low friction
Pressure Class	PN6 / PN10 / PN16
Maximum Working Pressure	Up to 16 bar @ 20°C (PN16)
Thermal Conductivity	Low
Electrical Conductivity	Non-conductive
Corrosion Resistance	Excellent (no rust or scaling)
Chemical Resistance	Resistant to most acids, alkalis, and salts
UV Resistance	Moderate (UV-stabilized grade improves resistance)
Water Absorption	Negligible
Odor	Odourless
Transparency	Opaque
End Connections	Socket / Threaded (as applicable)
Jointing Method	Solvent cement / Thread sealant

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 Vitroling Reducer Coupler

High Pressure Resistance

Upvc vitroling reducer coupler is designed to withstand high pressure of working (PN6, PN10, PN16), making it suitable for irrigation and water supply systems.

Excellent Corrosion Resistance

Upvc vitroling reducer coupler does not consist of rust, corrosion, or scale, and ensures the long service life even in aggressive soil and water conditions.

Leak-Proof Jointing

Upvc vitroling reducer coupler is a solvent-cement socket joints provide a strong, permanent, and leak-free connection when it is installed correctly.

Lightweight and Easy Handling

Upvc vitroling reducer coupler is much lighter than metal fittings, it is reducing the cost of transportation and simplifies installation.

Smooth Internal Surface

Upvc vitroling reducer coupler is ow friction losses, and due to this, smooth bore improves flow efficiency and reduces pressure drop.

Chemical Resistance

Upvc vitroling reducer coupler is resistant to most acids, alkalis, fertilizers, and salts commonly used in irrigation and industrial applications.

Long Service Life

Upvc vitroling reducer coupler offers a service life of 25–50 years under normal operating conditions.

Cost-Effective

Upvc vitroling reducer coupler ihas alower initial cost and minimal maintenance compared to metal or composite reducer couplers.

Dimensional Accuracy

Upvc vitroling reducer coupler is vitroling the mold to provide precise dimensions, ensuring proper alignment and strong joints.

Low Maintenance Requirement

Upvc vitroling reducer coupler does not require painting, coating, or corrosion protection.

Types of UPVC Vitroling Reducer Coupler

Concentric UPVC Vitroling Reducer Coupler

A concentric UPVC vitroling reducer coupler had both pipes end and to aligned on the same center line. It is provide to smooth flow transition and is commonly used in straight pipeline installations.

Eccentric UPVC Vitroling Reducer Coupler

An eccentric UPVC vitroling reducer coupler has offset center lines to keep one side level, and they prevent to air pockets, and it is mainly used in horizontal piping chemical systems.

Socket × Socket UPVC Vitroling Reducer Coupler

This type of UPVC vitroling reducer coupler has a socket on both ends for solvent-cement joints with different pipe diameters.

Threaded × Socket UPVC Vitroling Reducer Coupler

One end is a UPVC vitroling reducer coupler to threaded, and the other is a socket to allow connection between threaded fittings and plain UPVC pipes.

Pressure-Class Based UPVC vitroling reducer couplers Types

Vitroling reducer couplers are also classified by pressure rating:

PN6
PN10
PN16

Why Choose Petron Thermoplast?

Petron Thermoplast is one of the trusted UPVC Vitroling Reducer Coupler manufacturers and suppliers in India, delivering high-performance mechanical splicing solutions for civil and structural engineering sectors. Our UPVC Vitroling Reducer Coupler is crafted using certified materials and advanced machining processes to be strong and reliable, ensuring the connections in every project.

Precision-engineered UPVC Vitroling Reducer Coupler

Custom sizes and bulk order availability

Competitive prices with fast delivery

Expert technical support for installation

UPVC Pipe Fittings

We offer UPVC Pipe Fittings products in all standard sizes and provide complete customization options to meet your specific project requirements across our entire product range.