Manufacturer, Supplier & Exporter of Threaded Rubber Expansion Joint

Riddhi Siddhi Impex is a trusted name in the Indian industrial piping sector, offering a complete range of high-performance Threaded Rubber Expansion Joints. As a reputed manufacturer and domestic supplier, the company specializes in designing joints that provide excellent flexibility, vibration isolation, and thermal movement absorption—especially for small-bore piping systems. With a focus on quality and precision, these products are tailored to suit the demanding needs of various applications across industrial and commercial sectors.

Threaded Rubber Expansion Joints are specially designed with threaded ends—typically BSP or NPT—making them ideal for smaller diameter piping systems (usually up to 4 inches or 100mm NB). These joints offer exceptional ease of installation and maintenance, especially in compact and confined piping layouts. Constructed from high-quality elastomers like EPDM, Neoprene, or Nitrile, and reinforced with synthetic fabrics or metal rings, they are engineered to handle water, oil, chemicals, and mildly abrasive media.

Riddhi Siddhi Impex ensures that every threaded rubber joint meets or exceeds industry standards such as IS 5382, ASTM D2000, and EN 681-1, offering outstanding resistance to pressure, temperature variation, and corrosive substances. Their compact design and high flexibility make them highly effective at reducing water hammer, absorbing noise, and minimizing mechanical stress on adjacent equipment.

As a Threaded Rubber Expansion Joint Domastic supplier, Riddhi Siddhi Impex proudly delivers its products across key Indian cities like Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, and Rajkot. These regions see significant demand from industries like HVAC, fire protection systems, water treatment plants, and building utilities where threaded joints are commonly used.

The company also extends its supply network to Tier 2 and Tier 3 cities including Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, and Chandigarh. With efficient logistics and strong after-sales service, Riddhi Siddhi Impex supports both public and private sector infrastructure projects across India.

Threaded Rubber Expansion Joint – Technical Details

General Specification

Parameter	Details
Product Name	Threaded Rubber Expansion Joint
Manufacturer	Riddhi Siddhi Impex
Material	EPDM, Neoprene, Nitrile, Natural Rubber
Thread Type	BSP / NPT (Male / Female)
Nominal Size Range	15 mm to 100 mm
Working Pressure	Up to 10 bar
Temperature Range	-20°C to +100°C
Applications	HVAC, Water Systems, Oil Lines, Fire Sprinklers

Chemical Composition

Rubber Type	Main Constituents
EPDM	Ethylene Propylene Diene Monomer, Carbon Black, Sulfur
Neoprene	Polychloroprene, Zinc Oxide, Plasticizers
Nitrile (NBR)	Butadiene-Acrylonitrile Copolymer, Antioxidants
Natural Rubber	Polyisoprene, Stearic Acid, Fillers

Mechanical Properties

Property	Value Range
Tensile Strength	10 – 17 MPa
Elongation at Break	300 – 500%
Hardness	45 – 75 Shore A
Compression Set	< 25%
Fatigue Resistance	Excellent

Dimension Chart (Standard Sizes)

NB (mm)	Thread Type	Face-to-Face Length (mm)	Max Pressure
15	1/2" BSP/NPT	115	10 bar
25	1" BSP/NPT	130	10 bar
40	1.5" BSP/NPT	145	10 bar
50	2" BSP/NPT	150	10 bar
80	3" BSP/NPT	180	8 bar
100	4" BSP/NPT	200	8 bar

Equivalent Grades

Standard	Equivalent Grade
Indian Standard	IS 5382
ASTM	D2000
British Standard	BS EN 681-1
DIN	DIN 4809

Other Types of Rubber Expansion Joints

Type	Description
Single Arch Expansion Joint	Designed for standard movement and vibration absorption
Multiple Arch Expansion Joint	Higher flexibility and movement capacity
Flanged Expansion Joint	Flanged ends for high-pressure systems
Spool Type Expansion Joint	Heavy-duty applications with large face-to-face length

high-quality, reliable, and cost-effective solutions in small-diameter pipeline flexibility, Riddhi Siddhi Impex stands out as a premier Threaded Rubber Expansion Joint Domastic supplier. Their product performance, pan-India reach, and customer-centric approach ensure dependable support for diverse industries and infrastructure development projects across the country.

Frequently Asked Questions (FAQs) – Threaded Rubber Expansion Joint

Q1: What is a Threaded Rubber Expansion Joint?

A: It is a flexible connector with threaded ends used in small-bore piping to absorb vibration, movement, and thermal expansion.

Q2: Where are these joints used?

A: Threaded rubber joints are commonly used in HVAC systems, water pipelines, fire suppression systems, and chemical lines.

Q3: What thread types are available?

A: Riddhi Siddhi Impex supplies BSP (British Standard Pipe) and NPT (National Pipe Thread) types, in both male and female ends.

Q4: Do you supply across India?

A: Yes, Riddhi Siddhi Impex is a reliable Threaded Rubber Expansion Joint domestic supplier across cities like Mumbai, Delhi, Chennai, Pune, Ahmedabad, Surat, Dahej, and more.