Dismantling joint

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The dismantling joint is used to connect pipes or valves with flanges at both ends. The product has the characteristics of adjustable length to facilitate field adjustment during on site installation.

There is 50mm telescopic adjustment between double flange. Adjust and lock the required adjustment through the connect bolt. This product can be quickly dismantled and is very easy to service valves, pumps or instruments. It simplifies the time during the maintenance and alteration in the future pipeline and reduce the downtime in the entire pipeline project. Using only one wrench torque wrench to tighten hish strength features of this range products. In view of the above characteristics, the customer's demand for product inventory has been reduced.

Part No.	Name	Material.	Standards
1	Flange pipe A	GGG50	EN1563
2	Rubber gasket	EPDM	ISO4633
3	Gland	GGG50	EN1563
4	Flange pipe B	GGG50	EN1563
5-6-7	Bolts & Nuts	Carbon Steel, 4.8 Class	ISO898
	Anti-corrosive coating	FBE	BSEN14901
	Flange drilling hole		ISO7005,BSEN1092

● The nominal diameter of the product ranges is from DN40 to DN2000, and the drilled flange and nominal pressure like PN10/16/25/40. The Customer has some special requirements for the product that can also be designed and manufactured to meet customer requirements.

● The simplicity and versatility of product make the suitable for many applications, including pumping stations, water treatment plants, sewage treatment plants, plants, plant rooms, instrument rooms, power generation equipment, gas stations and so on.

● Dismantling joint is well install and remove for isolation valve, control valve, check valve, check valve flow measurement valve, pump, pressure relief valve, flange pipe etc..

● Product design and manufacturing in accordance with ISO 9001:2008 system, anti-corrosion materials through the most stringent WRAS certification, can be used for drinking water.

● Dismantling joint coated with WRAS water certified epoxy powder coating, we provide excellent protection from transportation, storage, on-site and corrosion damage. The zinc plated nut and bolt coating is used to provide long-term rust protection.

PN10
DN	D2	L1	L2	D4	D5	N-φd
80	98	200	310	160	200	8-19
100	118	200	310	180	220	8-19
150	170	200	340	240	285	8-23
200	222	220	340	295	340	8-23
250	274	230	370	350	400	12-23
300	326	250	410	400	455	12-23
350	378	260	410	460	505	16-23
400	429	270	430	515	565	16-28
450	480	270	430	565	615	20-28
500	532	280	440	620	670	20-28
600	635	300	480	725	780	20-31
700	738	300	480	840	895	24-31
800	842	320	520	950	1015	24-34

PN16
DN	D2	L1	L2	D4	D5	N-φd
80	98	200	310	160	200	8-19
100	118	200	310	180	220	8-19
150	170	200	340	240	285	8-23
200	222	220	340	295	340	12-23
250	274	230	370	350	400	12-28
300	326	250	410	410	455	12-28
350	378	260	410	470	520	16-28
400	429	270	430	525	580	16-31
450	480	270	430	585	640	20-31
500	532	280	440	650	715	20-34
600	635	300	480	770	840	20-37
700	738	300	480	840	910	24-37
800	842	320	520	950	1025	24-40

PN25
DN	D2	L1	L2	D4	D5	N-φd
80	98	210	310	160	200	8-19
100	118	220	340	190	235	8-23
125	144	220	370	220	270	8-28
150	170	230	370	250	300	8-28
200	222	230	370	310	360	12-28
250	274	250	410	370	425	12-31
300	326	250	410	430	485	16-31
350	378	270	440	490	555	16-34
400	429	280	480	550	620	16-37
450	480	280	480	600	670	20-37
500	532	300	480	660	730	20-37
600	635	300	520	770	845	20-40
700	738	320	560	875	960	24-43
800	842	320	600	990	1085	24-49

PN40
DN	D2	L1	L2	D4	D5	N-φd
80	98	210	330	160	200	8-19
100	118	220	340	190	235	8-23
125	144	220	370	220	270	8-28
150	170	230	370	250	300	8-28
200	222	230	410	320	375	12-31
250	274	250	440	385	450	12-34
300	326	250	440	450	515	16-34
350	378	270	480	510	580	16-37
400	429	280	520	585	660	16-40
450	480	280	520	610	685	20-40
500	532	300	560	670	755	20-43
600	635	300	600	795	890	20-49

Installation instructions

Step 1. Check the package and appearance of the product to ensure that it has not been damaged during the transport and that no parts have been lost.

Step 2. Check the flange to which dismantling joint fits. Make sure it matches the bore of the product flange. Nominal pressure must be consistent.

Step 3. Remove the pull rod bolts from dismantling joint, loosen the nut, and take the pull rod bolts so that the pipe moves freely in the body of flange connection.

Step 4. Move dismantling joint between the flanges to be assembled. There is a O ring gasket between the flange and the flange for sealing. Use flange bolts to secure the flange end of dismantling joint fix the flange end which need attach. Screw the bolt tightly.

Step 5. Connect the flange spigot to the opposite mating flange. Flange type O gaskets and added between the flange faces and bolted together with flange bolts.

Step 6. After bolts connect flange, self sealing of dismantling joint put into the program. At first in the middle of rubber seals with lubricant to ensure that the intermediate flange and intermediate sealing ring slide to the location, and check the small self connection bolt gasket and nut.

Step 7. Insert the pull rod bolts. (Note: if no rod bolts, the product is not limited.) Each rod has 4 nuts at assembly. When the pull rod is inserted, the bolt is connected with the nut. The pull rod bolt the connector is equal to meet the requirements of the flanges at both ends. The other nut tightening on the joint after tightening rod nut so as to complete the installation.

Step 8. Evenly press the bolt on the press in the alternating direction of the screw until it reaches the recommended torque. Wait ten minutes, then torque.

Common installation problems

1. The bolt is not tight to meet the requirement torque.

2. A small piece of rock debris between seals or gaskets.

3. Dirt on bolts or nuts causes problems with nut fastening.

4. The short distance is inserted by the spigot pipe.

5. Incorrect mating flange.