Custom Dismantling Expansion Joint DN50 to DN2000 with Quick Release Bolts for Easy Maintenance

• After-sales Service: According to The Contract
• Warranty: 12 Months
• Transport Package: Seaworthy Plywood Case
• Specification: DN50-DN2000
• Trademark: Baori Steel
• Origin: China
• HS Code: 7307990000
• Production Capacity: 50, 000 Pieces/Year

Product Description

Product Description

Overview of Double Flanged Dismentling Joint

The Dismantling Joint is an essential fitting for the installation and maintenance of valves, pumps, and flow meters. It provides telescopic longitudinal adjustment to bridge the gap between pipe flanges, making installation quick and effortless.
Once installed and the bolts are tightened, it becomes a rigid connection that transfers the pressure thrust along the pipeline. This unique feature protects your valuable pump and valve equipment from stress damage. When maintenance is needed, simply loosen the bolts to retract the joint, creating space for easy removal of the valve.

Material & Configuration

Standard Version: Our standard supply consists of a Carbon Steel (Q235) or Ductile Iron body with High-Strength Galvanized Steel Bolts. This configuration offers the best cost-performance ratio for most municipal water projects.
Premium Upgrade: For projects with strict anti-corrosion requirements, we can upgrade the bolts/nuts to Stainless Steel (SS304 / SS316) upon request.

Key Features

Easy Maintenance: Simplifies the assembly and disassembly of valves in the pipeline.
Corrosion Resistance: Coated with high-quality Blue Epoxy Powder (FBE) for long-term use in water systems.
High Strength: Made of Carbon Steel (Q235) or Ductile Iron (GGG50) with high-strength galvanized bolts.
Wide Application: Perfect for Water Treatment Plants, Sewage Systems, and Pump Stations.

Product Details

Product Name	Double Flanged Dismantling Joint
Model Code	VSSJA-2 (C2F) / CC-DisJoint
Nominal Diameter	DN50 - DN2000
Working Pressure	PN10, PN16 (Standard), PN25, PN40
Body Material	Carbon Steel (Q235B) or Ductile Iron (GGG50)
Sealing Ring	Sealing Ring
Bolts & Nuts	High Strength Carbon Steel (Hot Dip Galvanized) / SS304
Surface Treatment	Fusion Bonded Epoxy (FBE) Power Coating (Min 250μm)
Color	RAL 5017 / RAL 5015 (Standard Blue)
Flange Drilling	EN1092-1, DIN 2501, ANSI B16.5, JIS B2220
Working Temp.	-10°C to +80°C (For EPDM Rubber)
Adjustable Range	Telescopic adjustment +/- 25mm (Depends on size)
Application	Potable Water, Sewage, Pump Station, Valve Installation
Customization	Available
Certificate	ISO 9001:2015, WRAS (Optional for coating)
HS Code	7307990000

Specification

1. Price Basis:
The reference prices listed above are based on the following standard material:
Body Material: Carbon Steel (Q235) or Ductile Iron (GGG50).
Sealing Ring: EPDM Rubber (Standard for Water).
Bolts & Nuts: Carbon Steel with Galvanized Coating (Grade 4.8/8.8).
Coating: Blue Epoxy Powder Coating (RAL5017).

2. Important Note on Bolts:
The standard price includes Galvanized Steel Bolts.
If your project requires Stainless Steel (SS304 / SS316) Bolts & Nuts, the price will be higher due to the raw material cost. Please let us know if you need this upgrade.

3. Customization:
Pressure: Prices are for PN10/PN16. High pressure (PN25/PN40) is available upon request.
Size: We can manufacture non-standard lengths or huge sizes up to DN3000.
For a precise quote including shipping, please click "Contact Now"!

Specification	Price
DN100	$38
DN200	$88
DN500	$380
Customization	Negotiable

Application

Municipal Water Supply & Potable Water Distribution

Wastewater & Sewage Treatment Plants

Pumping Stations & Hydro Power Projects

Widely installed in the main transmission pipelines of city water networks. Our joints are coated with Fusion Bonded Epoxy (FBE) powder, which is non-toxic and meets drinking water standards. It simplifies the installation of butterfly valves and gate valves in long-distance pipelines, absorbing the installation tolerance.

Essential for connection points in aeration tanks, sedimentation tanks, and sludge pipelines. The thick Epoxy coating provides excellent resistance against wastewater, sludge, and mild chemicals. Valves in sewage plants need frequent cleaning or replacement. The retractable design of our joint allows maintenance teams to remove valves easily without breaking the pipe.

Critical for the inlet and outlet of large centrifugal pumps and turbines. Once bolted tight, the joint acts as a rigid spool that transfers the pipe pressure thrust (blind plate force) across the joint, preventing this force from damaging the expensive pump casing. Ensures a tension-free installation for high-pressure pump systems.

Production Showcase

After Sales Service

12-Months Quality Warranty: We offer a one-year warranty from the date of product receipt. If any manufacturing defects occur during this period, we will provide free replacement or repair parts immediately.
Technical Support: Installing expansion joints correctly is critical. We provide detailed installation manuals and video guidance to ensure your onsite team installs the bellows correctly to avoid damage.
24/7 Response: Our sales and engineering team is available online. Any technical questions or claims will be responded to within 24 hours.
Third-Party Inspection: We accept inspections from SGS, BV, or TUV before shipment to ensure you receive exactly what you ordered.

Our Company

Company Profile

Shanghai Baori Steel Industries Co., Ltd, has established its significant 
presence in the metal manufacturing and fabrication industries. Since its 
establishment on Aug 03, 2023, the company has 
been committed to providing comprehensive and efficient 
fabrication solutions, focusing on the integration 
and optimization of steel supply services.

Company Address

Our company is located in Baoshan District, Shanghai, China.
Specific Location:

Room 403, Building 1, Lane 1588, Youyi Road, Baoshan District, Shanghai, China 

FAQ

Q: Does the price include the bolts and nuts?
A: Yes, absolutely. The dismantling joint is sold as a complete set, including the body, sealing ring, and full set of tie-rods/bolts.

Q: What is the material of the bolts? Galvanized or Stainless Steel?
A: Our standard quotation includes High-Strength Carbon Steel bolts with Galvanized coating (Grade 4.8 or 8.8), which is cost-effective and durable. If you need SS304/SS316 bolts for specific projects, please inform us for an updated price.

Q: What is the adjustment range of the joint?
A: It generally provides an adjustment range of ±25mm to ±50mm. This flexibility allows you to easily bridge the gap between pipe flanges during installation.

Q: Is the blue coating safe for drinking water?
A: Yes. We use Fusion Bonded Epoxy (FBE) powder coating (RAL5017 Blue). It is non-toxic, environmentally friendly, and suitable for potable water systems.

Q: How do you pack these heavy items?
A: For small sizes (DN50-DN300), we pack them in plywood cases. For large sizes (DN400+), we usually fix them on wooden pallets with steel straps and wrap them with plastic film to prevent coating damage during sea freight.