EPDM Rubber Double Sphere Expansion Joint in Steel Structure

• Customization: Available
• Connection: Flanged Expansion Joint in Steel Structure
• Kind: Corrugated Compensator
• Model NO.: expansion joint in steel structure
• Head Code: Round
• Material: Stainless Steel
• Surface Treatment: Galvanized
• Customized: Customized
• Certification: CE, ISO14001, JIS, ISO9001
• Warranty: 18 Months
• Application: Drainage
• OEM&ODM: Support
• Key Word: Joint Expansion
• Technical: Vulcanized,Casting
• Working Pressure: -0.2~4.5MPa
• Transport Package: Wooden Case& Carton Case
• Specification: DN40-DN600
• Trademark: CHNFLEX
• Origin: China
• HS Code: 40094200
• Production Capacity: 30000PCS/Year

Product Description

Expansion joint in steel structure is composed of inner and outer rubber layers, curtain layers, and steel wire rings, which are vulcanized and then loosely combined with metal flanges or parallel joints. The double ball design improves the air tightness and waterproof performance of the product, while effectively extending its service life and reducing noise. Its unique double-layer sealing structure achieves good water tightness and air tightness, making it have excellent sealing performance.

NO	Name	Material
1	Inner/outer rubber	NR,NBR,EPDM,FKM,PTEF,IIR,CR
2	Reinforcing cord	Nylon Tire Cord
3	Reinforcing ring	Stainless Steel Strengthen Ring
4	Flange	Q235,SS304,SS316,PVC

Performance characteristics of rubber joints:
1. Good pressure resistance
2. Excellent corrosion resistance
3. Good buffering capacity
4. Easy to install and maintain
 

Product Specification

 

Size		Length	Allowable Movements in Operation
mm	inch	mm	Axial Compression mm	Axial Extension mm	Transverse Movement mm	Angular Deflection mm
40	1 1/2	178	30	50	45	40°
50	2	178	30	50	45	40°
65	2 1/2	178	30	50	45	40°
80	3	178	30	50	45	40°
100	4	229	35	50	40	35°
125	5	229	35	50	40	35°
150	6	229	35	50	40	35°
200	8	330	35	60	35	30°
250	10	330	35	60	35	30°
300	12	330	35	60	35	30°
350	14	340	35	60	35	30°
400	16	340	35	60	35	30°
450	18	340	35	60	35	30°
500	20	340	35	60	35	30°
600	24	340	35	60	35	30°

Note: If the medium is oil, acidic or alkaline substances, and there are special requirements for the working temperature, you can customize it by sending a letter or drawing. Please specify when ordering.

Product Details

 

Production Flow

The production process of expansion joint in steel structure:

1.Raw material Top level CR/EPDM/NBR rubber raw materials,No recycled rubber

2.Plasticating and mixing Special Formulation for better Bending with Nylon,For Better Strength,Sealing

3.Workblanks wraping Cooper plated steel wire reinforcement   prevent pull off

4.Vulcanizing Automatic vulcanization machine ensure vulcanization time and pressure

5.Inspecting 100% strict inspection is to be responsible for consumers

6.Packaging Protective Packaging for No Rust and Breakage

 

Application

Expansion joint in steel structure have good pressure resistance, wear resistance, corrosion resistance, and seismic performance, which can absorb the vibration and displacement generated by pipelines during operation, protecting pipelines and equipment from damage. Double ball rubber joints are widely used in pipeline systems such as petrochemicals, heating, air conditioning, water supply, and drainage.

Our Services

1.24-hour online
2.Free samples provided
3.Support customization
4.Provide drawings
5.Multiple payment styles to choose from
6.Factory inspection (material, specifications, quantity, pressure, packaging)
7.Long warranty period
8.Suitable packaging for transportation
 

Our Customer

Certifications

FAQ

Q1:What's the working pressure?
A1:The working pressure can be 1.0Mpa, 1.6Mpa, 2.5Mpa.

Q2:What's the working temperature?
A2:The working temperature is -20ºC~100ºC.

Q3:Can the expansion joint in steel structure be marked with customized logo?
A3:Yes,the rubber joint can be marked with your logo. We could provide OEM&ODM service.

Q4:Can you provide drawings?
A4:Yes,we could provide drawings for you.Please contact us to get the drawings.