Carbon steel flange double sphere rubber joint

Spray-painted carbon steel flange double rubber joints are made of independent rubber layers and reinforcement materials which are vulcanized together after moulding or moulding. Spray-painted carbon steel flanges can be made in different colors according to different needs of customers.

Features

Vibration absorption, noise reduction, high pressure resistance, good elasticity, large displacement, balance pipe deviation, easy installation

Dimension: DN32mm-DN800mm
Product pressure: 0.6-2.5 MPa
Product Material: NR, EPDM, NBR, KFM, PTFE, CR
Working temperature: – 40 degrees to 80 degrees (can also process high temperature resistant rubber joints)
Scope of application: acid, alkali, corrosion, oil, hot water, cold water, compressed air, compressed natural gas, etc.

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Installation does not require washers:

Carbon steel spray-painted double rubber joints are equipped with vulcanized rubber flanges and fabrics integrated with pipes, which eliminates the need for gaskets 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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Light:

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

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

Standard sprayed carbon steel. Forged flanges or cast carbon steel flanges are also available. Flange production standards can be made into EN, ANSI, JIS, AWWA, GOST, DIN standards or any specific size.

Nominal Diameter(DN)		Length L	Diameter of the centralring of the bolt	Hole diameter quantitvd	Axial displacement		Horizontal Isplacement	Angular deflection
mm	inch	mm	mm		Extension	Compression	mm	(a1+a2)
40	1½	165	110	18-4	30	50	45	35º
50	2	165	125	18-4	30	50	45	35º
65	2½	175	145	18-4	30	50	45	35º
80	3	175	160	18-8	35	50	45	35º
100	4	225	180	18-8	35	50	40	35º
125	5	225	210	18-8	35	50	40	35º
150	6	225	240	22-8	35	50	40	35º
200	8	325	295	22-8	35	50	40	35º
250	10	325	350	22-12	35	60	35	30
300	12	325	400	22-12	35	60	35	30
350	14	330	460	22-16	35	60	35	30
400	16	330	515	26-16	35	60	35	30
450	18	330	565	26-20	35	60	35	30
500	20	350	620	26-20	35	60	35	30
600	24	350	725	30-20	35	60	35	30
700	28	350	840	30-24	35	60	35	30
800	32	400	950	30-34	35	60	35	30

NOTES:

Flange is available with DIN Standard,ANSI Standard,JIS Standard,and BS Standard.
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 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 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 joint 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.