Dismantling Joint

The dismantling joint consists of the main body, the sealing ring, the gland, the telescopic short pipe and other main parts. It is a new product that connects pumps, valves and other equipment with pipelines.

It connects them into a whole through full bolts, and has a certain displacement. In this way, it can be adjusted according to the installation size on site during installation and maintenance, and the axial thrust can be transferred back to the whole pipeline during work. This not only improves work efficiency, but also plays a certain protective role for pumps, valves and other equipment.

Product Description

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.

Advantages of dismantling joint

1. Installation is simple and convenient, convenient valve installation.
2. Rubber is strong in compression and elasticity.
3. Metal and sealing rings are highly stringent.
4. 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

Tianjin Guoji Valve Co., Ltd. is an export-oriented valve manufacturer with 15,332 square meter factory area, which has strong capability of R&D, Manufacture, Trading and Service. Now our company has passed the Lloyd's Register (LR) ISO9001: 2015 quality management system certification (ISO Approval number: ISO 9001 – 00033059) and CE/PED certification (EU Certificate Of Conformity). (Certificate No: 0343/PED/SHA/BJG00001668/A).
TGV's products covered Butterfly valves, Check valves, Strainers, Gate valves, Ball valves, Globe valves, Expansion joints, Flanges and Fittings with pressure range from 0.5 to 6.4 MPa, size from DN15 to DN3000. The products also have been widely exported to more than 30 countries and regions.
We aim at deliver only quality valves with professional services, we see quality and service as life and always take our reputation and promises seriously.