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Dismantling Joint from China Suppliers - High-Quality Factory Connection for Pumps and Valves
Description
The Dismantling Joint is a crucial pipe fitting designed to provide flexibility during the installation and maintenance of pipeline systems. Installed between two fixed flanges, this joint allows easy dismantling, alignment, and replacement of valves, pumps, or meters without stressing the pipework.
Our dismantling joints are widely used in municipal water supply, sewage treatment, industrial fluid networks, and building services. The adjustable length compensates for misalignments, thermal expansion, and other system variations, making it essential for systems that require frequent inspection or future upgrades.
Constructed with high-strength ductile iron or carbon steel and coated with anti-corrosion epoxy, each dismantling joint is engineered to withstand harsh environments, internal pressure, and mechanical stress. Sealing gaskets and bolts are carefully selected to ensure leak-free operation.
Available in a range of sizes and pressure classes (PN10, PN16, PN25), our dismantling joints comply with international standards such as ISO and EN, and are compatible with butterfly valves, gate valves, and other flange-mounted equipment.
As one of China's leading valve and fitting manufacturers, we provide dependable products for engineering projects around the globe. With strict quality control and fast delivery, our dismantling joints are trusted by engineers, contractors, and utility companies worldwide.
Our dismantling joints are widely used in municipal water supply, sewage treatment, industrial fluid networks, and building services. The adjustable length compensates for misalignments, thermal expansion, and other system variations, making it essential for systems that require frequent inspection or future upgrades.
Constructed with high-strength ductile iron or carbon steel and coated with anti-corrosion epoxy, each dismantling joint is engineered to withstand harsh environments, internal pressure, and mechanical stress. Sealing gaskets and bolts are carefully selected to ensure leak-free operation.
Available in a range of sizes and pressure classes (PN10, PN16, PN25), our dismantling joints comply with international standards such as ISO and EN, and are compatible with butterfly valves, gate valves, and other flange-mounted equipment.
As one of China's leading valve and fitting manufacturers, we provide dependable products for engineering projects around the globe. With strict quality control and fast delivery, our dismantling joints are trusted by engineers, contractors, and utility companies worldwide.
Advantages of Dismantling Joint
- Installation is simple and convenient, convenient valve installation.
- Rubber is strong in compression and elasticity.
- Metal and sealing rings are highly stringent.
- In the pipeline, it can effectively compensate and ease the pipe and blind plate thrust.
Standard of Implementation
| Category | Details |
| Type | Flange |
| Face to Face | API609, BS5155, DIN3202, ISO5752 |
| Flange | DIN, BS, UNI, ISO, ANSI, AS, JIS |
| Mounting Flange | ISO5211 |
| Working Pressure | PN16 (200PSI) |
| Application | HVAC, Water Supply & Sewage, Food & Beverage, Chemical/petrochemical/processing, Power and Utilities, Paper and Pulp, Ship Building |
Standard Materials Of Main Parts
| ITEM | PART NAME | MATERIAL |
| 1 | FLANGE | Carbon Steel |
| 2 | SEALING RING | NBR |
| 3 | GLAND | Carbon Steel |
| 4 | PIPE | Carbon Steel |
| 5 | BOLT | Carbon Steel 8.8 GRADE |
Dimensions: (mm)
| Size | D | K | n x d | D | D |
| Dn50 | 160 | 125 | 4*18 | 200 | ±20 |
| Dn65 | 180 | 145 | 4*18 | 200 | ±20 |
| Dn80 | 195 | 160 | 4*18 | 200 | ±20 |
| Dn100 | 215 | 180 | 8*18 | 200 | ±20 |
| Dn125 | 245 | 210 | 8*18 | 200 | ±20 |
| Dn150 | 280 | 240 | 8*23 | 200 | ±20 |
| Dn200 | 335 | 195 | 12*23 | 200 | ±20 |
| Dn225 | 365 | 325 | 12*23 | 200 | ±20 |
| Dn250 | 405 | 355 | 12*26 | 200 | ±20 |
| Dn300 | 460 | 410 | 16*26 | 220 | ±25 |
| Dn350 | 520 | 470 | 16*26 | 220 | ±25 |
| Dn400 | 580 | 525 | 16*30 | 220 | ±25 |
| Dn450 | 640 | 585 | 20*30 | 220 | ±25 |
| Dn500 | 715 | 650 | 20*34 | 220 | ±25 |
| Dn600 | 840 | 770 | 20*36 | 240 | ±25 |
| Dn700 | 910 | 840 | 24*36 | 240 | ±25 |
| Dn800 | 1025 | 950 | 24*39 | 350 | ±30 |
| Dn900 | 1125 | 1050 | 28*39 | 350 | ±30 |
| Dn1000 | 1255 | 1170 | 28*42 | 350 | ±30 |
| Dn1200 | 1485 | 1390 | 32*48 | 370 | ±30 |
| Dn1400 | 1685 | 1590 | 36*48 | 370 | ±30 |
| Dn1600 | 1930 | 1820 | 40*55 | 380 | ±30 |
| Dn1800 | 2130 | 2100 | 44*55 | 380 | ±30 |
| Dn2000 | 2345 | 2230 | 48*60 | 400 | ±30 |
Frequently Asked Questions (FAQ)
What is a dismantling joint used for?
A dismantling joint is a pipe fitting installed between two fixed flanges that allows for easy removal, alignment, and replacement of inline equipment such as valves, pumps, and meters without disturbing the surrounding pipework. It is especially useful during maintenance and system upgrades.
What pressure ratings are available for dismantling joints?
Our dismantling joints are available in multiple pressure classes including PN10, PN16, and PN25. The standard working pressure is PN16 (200PSI), making them suitable for most municipal and industrial pipeline applications.
What materials are used in the construction of dismantling joints?
The main components are made from high-strength carbon steel, with NBR rubber used for the sealing ring. The entire assembly is coated with anti-corrosion epoxy to ensure long-term durability in harsh environments, including buried and underwater installations.
Which international standards do your dismantling joints comply with?
Our dismantling joints comply with multiple international standards including ISO, EN, DIN, BS, ANSI, and UNI. Flange face-to-face dimensions follow API609, BS5155, DIN3202, and ISO5752, ensuring compatibility with a wide range of pipeline systems worldwide.
What size range is available for dismantling joints?
We offer dismantling joints in a comprehensive size range from DN50 up to DN2000, covering nearly all pipeline diameter requirements in municipal water supply, sewage treatment, industrial fluid networks, and building services projects.
Can dismantling joints be used with butterfly valves and gate valves?
Yes. Our dismantling joints are fully compatible with butterfly valves, gate valves, and other flange-mounted equipment. The adjustable length design accommodates minor misalignments and simplifies the installation and replacement of inline components without cutting or re-welding pipelines.