Manufacturer, Supplier & Exporter of Restrained Dismantling Joint

Restrained Dismantling Joints are critical components used in pipeline systems to facilitate easy installation, maintenance, and dismantling of valves, pumps, and other equipment while simultaneously providing restraint against axial movement caused by internal pressure. Manufactured by Riddhi Siddhi Impex, these joints combine durability with precision engineering, making them highly reliable for use in demanding industrial and municipal water, sewage, and gas distribution networks.

Riddhi Siddhi Impex is recognized as a premier manufacturer and domestic supplier of Restrained Dismantling Joints in India, known for its commitment to quality and customer satisfaction. Their joints are designed using high-grade ductile iron, carbon steel, and stainless steel, ensuring superior strength and corrosion resistance. The manufacturing process adheres to strict international standards, and each product undergoes rigorous testing to guarantee safety and long-term performance.

The company’s products enjoy widespread availability across major Indian cities, including Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, and Nagpur. Furthermore, Riddhi Siddhi Impex caters to an extensive range of smaller but rapidly developing industrial and commercial centers such as Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru, Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, and Thiruvananthapura.

One of the key advantages of the Restrained Dismantling Joint is its ability to absorb and restrain axial forces, which prevents pipe movement due to internal pressure surges or external forces. This restraint feature makes it particularly suitable for critical pipeline installations in power plants, petrochemical industries, water treatment plants, and urban infrastructure projects, where the stability and integrity of the pipeline are paramount.

Riddhi Siddhi Impex’s Restrained Dismantling Joints come with universal flange compatibility, supporting multiple standards such as ANSI, DIN, IS, and BS, which ensures ease of integration with existing pipeline systems. The product design incorporates adjustable lengths and strong locking mechanisms, which provide axial restraint while allowing easy dismantling during maintenance or replacement, reducing downtime and operational costs.

Restrained Dismantling Joint – Product Information

1. Technical Specification

Parameter	Details
Product Name	Restrained Dismantling Joint
Manufacturer	Riddhi Siddhi Impex
Size Range	DN 50 mm to DN 2000 mm
Material	Ductile Iron, Carbon Steel, Stainless Steel
Pressure Class	PN10, PN16, PN25
Coating	Fusion Bonded Epoxy (FBE), Hot Dip Galvanized
Standard Flanges	ANSI B16.5, DIN, BS, IS
Application	Pipeline restraint, valve and pump dismantling, water and wastewater systems

2. Chemical Composition

Material	C (%)	Si (%)	Mn (%)	P (%)	S (%)	Others
Ductile Iron (GJS 400)	3.2–3.6	2.2–2.8	0.1–0.3	≤0.05	≤0.02	Mg 0.04%
Carbon Steel (A106 Gr B)	≤0.30	≤0.35	≤1.06	≤0.035	≤0.04	–
Stainless Steel (SS316)	≤0.08	≤1.00	≤2.00	≤0.045	≤0.03	Cr: 16–18%, Ni: 10–14%

3. Mechanical Properties

Material	Yield Strength (MPa)	Tensile Strength (MPa)	Elongation (%)	Hardness
Ductile Iron	≥300	≥420	≥10	170–230 BHN
Carbon Steel	≥245	≥415	≥20	≤180 HB
Stainless Steel	≥205	≥515	≥40	≤95 HRB

4. Dimension Chart (Sample Sizes)

DN (mm)	Overall Length (mm)	Flange OD (mm)	No. of Bolts	Pressure (bar)
80	220	200	4	10
150	280	285	8	16
300	380	445	12	16
600	550	670	20	10
1000	720	920	28	10

5. Equivalent Grades

Material	Equivalent Grade	Standard
Ductile Iron	GJS 400-15	EN 1563
Carbon Steel	A106 Gr B	ASTM A106
SS316	1.4401	EN 10088

6. Equivalent Standards

Standard	Description
IS 9523	Indian Standard for Ductile Iron Pipe Fittings
EN 545	European Standard for Ductile Iron Pipeline Components
ANSI B16.5	American Standard for Pipe Flanges
BS 4504	British Standard for Flanges and Joints

7. Other Types of Dismantling Joints

Type	Material	Application	Pressure Rating
Universal Dismantling Joint	Ductile Iron, SS	Versatile flange adjustment	Up to 25 bar
Double Flanged Dismantling Joint	Ductile Iron	Used for large valve installation	Up to 16 bar
Single Flanged Dismantling Joint	Carbon Steel	Standard pipeline disassembly	Up to 16 bar
Expansion Dismantling Joint	Rubber/Stainless Steel	Thermal movement absorption	Up to 10 bar

Customization options offered by Riddhi Siddhi Impex allow clients in cities like Vilayat, Somnath, Dahej, Ankleshwar, Navsari, Valsad, and Rajpipla to specify dimensions, pressure ratings, materials, and coatings that align perfectly with their project requirements. This flexibility has made Riddhi Siddhi Impex a trusted supplier for government agencies, private contractors, and industrial clients across the Indian subcontinent.

Frequently Asked Questions (FAQs)

Q1: What is a Restrained Dismantling Joint?

A: It is a type of joint that prevents axial movement in pipelines, allowing safe dismantling and alignment of valves or fittings under pressure.

Q2: Where can I use these joints?

A: They are ideal for water treatment plants, industrial pipelines, and municipal infrastructure where pressure-induced movement is a concern.

Q3: Can Riddhi Siddhi Impex provide custom sizes?

A: Yes, custom lengths, materials, and pressure ratings are available as per project specifications.

Q4: In which cities are these joints supplied?

A: Riddhi Siddhi Impex supplies across Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Ahmedabad, Surat, Dahej, Rajkot, and more.