Nominal diameter	External diameter of pipe	External dimension		Flange connection size
				0.6Mpa				1.0Mpa
		L	L▲	D	D1	n – Th.	b	D	D1	n – Th.	b
65	76	200	40	160	130	4 – M12	16	185	145	4 – M16	20
80	89			190	150	4 – M16	18	200	160	8 – M16	22
100	114			210	170		18	220	180		24
125	140			240	200	8 – M16	20	250	210		26
150	168			265	225		20	280	240	8 – M20	26
200	219			320	280		22	340	295		28
250	273			375	335	12 – M16	24	395	350	12 – M20	28
300	325	220	50	440	395	12 – M20	24	445	400	12 – M20	28
350	377			490	445		26	505	460	16 – M20	30
400	426			540	495	16 – M20	28	565	515	16 – M24	32
450	480			595	550		28	615	565	20 – M24	32
500	530			645	600	20 – M20	30	670	620	20 – M24	34
600	630	240		755	705	20 – M24	30	780	725	20 – M27	36
700	720			860	810	24 – M24	32	895	840	24 – M27	40
800	820	350	60	975	920	24 – M27	34	1015	950	24 – M30	44
900	920			1075	1020	24 – M27	36	1115	1050	28 – M30	46
1000	1020			1175	1120	28 – M27	36	1230	1160	28 – M33	50
1200	1220	370		1405	1340	32 – M30	40	1455	1380	32 – M36	56
1400	1420			1630	1560	36 – M33	44	1675	1590	36 – M39	62
1600	1620	380		1830	1760	40 – M33	48	1915	1820	40 – M45	68
1800	1820			2045	1970	44 – M36	50	2115	2020	44 – M45	70
2000	2020	400		2265	2180	48 – M39	54	2325	2230	48 – M45	74
2200	2220			2475	2390	52 – M39	60	2550	2440	52 – M52	80
2400	2420			2685	2600	56 – M39	62	2760	2650	56 – M52	82
2600	2620	450	80	2905	2810	60 – M45	64	2960	2850	60 – M52	88
2800	2820			3115	3020	64 – M45	68	3180	3070	64 – M52	94
3000	3020			3315	3220	68 – M45	70	3405	3290	68 – M56	100
3200	3220			3525	3430	72 – M45	76

No.	Name	Quantity	Material
1	Valve nody	1	QT450 – 10、Q235A
2	Gasket	1	NBR
3	Follower	1	QT450 – 10、Q235A
4	Limited short pipe	1	Q235A
5	Stud	n	Q235A、35#
6	Nut	n	Q235A、20#

VSSJAF Double Flanges Dismantling Metal Expansion Joint(DISMANTLING JOINTS), also known as expansion joints, compensator. Double flange transmission joint is composed of body, sealing ring, follower and expansion short pipe, it is suitable for pipeline whose both sides are connected to flange, when installation, adjust length of product at both ends with flanges, screw down gland bolts and make it into a whole, and has certain displacement amount, to convenient for adjust dimension when installation.steel material dismantling joint pipe coupling joint main features 1. Easy and convenient installation, convenient valve installation, affordable pipeline axial tension. 2. The product is casting or welding metal, loose tube parts choose trapezoidal rubber seal, under the action of gland and bolt. 3. The principle of using rubber compression elastic deformation. Forced sealing ring deformation on the outer wall of pipe joint ontology between static seal. 4. Metal and seal strictly according to the using performance and user requirements. External coating material high strength anti-corrosion paint, by connecting bolts for high strength carbon steel or stainless steel. Because of a certain gap between ontology and telescopic tube, make it has a certain axial and radial displacement. 5. Effective compensation and relief pipe in the course of pipeline and blind thrust, and facilitate water pump, valve replacement, installation and maintenance is a pipe installation in the shipping industry is the most ideal accessory products.