PVC flange rubber expansion joint

PVC flange rubber joint is composed of inner rubber layer, reinforcing layer and rubber tube with multi-layer scraping nylon cord fabric and outer rubber layer. The rubber compensation joint of PVC flange in chemical pipeline is composed of CPVC flange and rubber spheres of different materials; rubber sphere is made of high quality raw rubber; scientific proportion; advanced processing technology is adopted; rubber flexibility is ensured; rubber sphere is guaranteed to withstand high pressure and reasonable tension deformation; and all kinds of rubber materials are guaranteed. Different tolerance and service life of spheres.

Features

Small size, light weight, good elasticity, easy installation and maintenance.

Dimension: DN32mm-DN3000mm
Product pressure: 0.6-2.5 MPa
Flange material: carbon steel, stainless steel (304.316)
Service temperature: -45 +100.
Applicable media: sea water, waste water (weak acid or alkali) or oil, cooling water containing oily additives, lubricating oil, grease and air, compressed air

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Installation does not require washers:

PVC rubber joints are equipped with vulcanized rubber flanges and fabrics integrated with pipes, which makes gaskets unnecessary in most applications. Check assembly instructions before installation. Steel wire or solid wire rope is embedded in the matrix and used as reinforcement for joints.
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Lightweight:

The rubber expansion joint is relatively light in weight, which helps to reduce the installation labor cost.
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Reduce heat loss:

Rubber expansion joint can reduce heat loss and provide long-term maintenance-free service.
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Flange:

PVC flange. Flange production standards can be made into EN, ANSI, JIS, AWWA, GOST, DIN standards or any specific size.

Nominal Diameter(DN)		Length L	Axial displacement		Horizontal Isplacement	Angular deflection
mm	inch	mm	Extension	Compression	mm	(a1+a2)
32	1¼	95	6	9	9	15º
40	1½	95	6	10	9	15º
50	2	105	7	10	10	15º
65	2½	115	7	15	11	15º
80	3	135	8	19	12	15º
100	4	150	10	19	13	15º
125	5	165	12	20	13	15º
150	6	180	12	25	14	15º
200	8	210	16	25	22	15º
250	10	230	16	25	22	15º
300	12	245	16	25	22	15º
350	14	255	16	25	22	15º
400	16	255	16	25	22	15º
450	18	255	16	25	22	15º
500	20	255	16	25	22	15º
600	24	260	16	25	22	15º

NOTES:

Flange is available with DIN Standard,ANSI Standard,JIS Standard,and BS Standard.
The size is available DN32- DN3000
Please sent us letter and drawing for customization if you have special requirements.
If this product is used for supplying water for high place, anti-pull-off device should be installed if the pipe has or fixed bracket is not as no fixed stay or fixed bracket or the force of fixed bracket is not large than axial force.

Flexible rubber expansion joints shall not exceed the displacement limit during installation.
In the installation of bolts to be symmetrical, to gradually pressure and tighten, to prevent partial leakage.
When the rubber expansion joint is laid flat, suspended, and vertically installed, the actual working axial displacement pressure of the rubber joint should be less than the supporting force of the pipeline, otherwise the anti-lifting device should be installed to prevent the work from being pulled.
The installation location of the rubber joint should be kept away from the heat source and ozone area. It is strictly forbidden to irradiate with strong radiation, expose to the sun and use the medium that does not meet the requirements of this product.
When the rubber connector is transported, loaded, unloaded or installed, it is strictly forbidden to sharpen the surface sealing surface.
When installing DN200mm or above, please use butterfly valve special flange or small diameter flange for mating flange, so as to avoid flange pull-out, misalignment, sealing surface fracturing and water leakage after installation.