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Quick Details

  • Material: Rubber and Carbon steel
  • Technics: Forged
  • Type: Union
  • Place of Origin: Henan, China (Mainland)
  • Model Number: GJQ
  • Brand Name: Liwei
  • Connection: Flange
  • Shape: Equal
  • Head Code: Round
  • Brand name: Liwei
  • Name: flexible expansion joint
  • DN: 32(1.25")-3200(125")
  • Lenghth: 165-550
  • Temperate: -30-120
  • Tensile strength: 13.6
  • certificate: ISO9001&ISO14001
  • Applicable medium: air,water,gas,weak acid,weak alkali
  • color: black

Packaging & Delivery

Packaging Details rubber coupling Unfumigation wooden case (Out package) and Plastic film and Textile membrane(inside package). We can make change as your request.
Delivery Time Shipped in 10 days after payment

we specialized in making rubber expansion coupling

rubber expansion coupling

Our company is a leading group, engaged in manufacturing valve, pipe fitting. It is widely used in water supply and drainage, recycled water, air conditioning and heating,  ship, water pump, and compressor, Etc. They are ideal for compensating thermal expansion and contraction in piping system as an unbeatable cost effective alternative to expansion loops. 

Our advantages:

  • 1) 24-year-experience in designing and manufacturing
  • 2) Our own patents and innovations
  • 3) We can produce the cargos according to customers’ drawings
  • 4) ISO9001&ISO14001 verified
  •  5) Better quality and competitive price
  • 6) Min. order 1 piece
  • 7) Reply your email within 24hours

 Material of each component:   

nominal diameter 

length(mm)

Axial displacement (mm)

horizontal displacement (mm)

mm

inch

 

extension

compression

 

15

0.5

190

 

 

 

20

0.75

210

5~6

50

45

25

1

210

5~6

50

45

32

1.25

220

5~6

50

40

40

1.5

220

5~6

50

40

50

2

240

5~6

50

40

65

2.5

240

5~6

60

35

80

3

280

5~6

60

35

 

 

Note :

1. Standard length and normal DN, others available on request.

2. The rubber normally be used EPDM, nature rubber, butyl, neoprene, butyronitrile.

3. Threads type will be DIN,BSPT,NPS,Metric(ISO7/1. DIN299, ANSIBI.20.1)

 

Technical data

Working pressure

1.6Mpa  (16kg.f/cm²)

Deflection angle

(a1+a2)45°

Explosion pressure

4.8Mpa  (48kg.f/cm²)

Vacuum

53.3Kpa(400mmHg)

Applicable temperature

-15~+115°C,(for special conditions can be -30~+250°C)

Applicable media

Water, seawater, hot water, air, oil, acid etc.

 

The material of rubber expansion coupling

 

rubber expansion coupling Displacement Diagram

 

 

The foreign client Mr. king come to visit in 2009.

Our factory section

Packaging & Shipping

 Packaging & Delivery

Packaging Details: rubber expansion joints : Unfumigation wooden case (Out package) and Plastic film and Textile membrane(inside package).  We can make change as your request.
Delivery Detail:7-20 days according to the amount you ordered

Specifications

 rubber expansion joints  
1,imported rubber from abroad 
2,OEM manufacturer for 25 years 
3,largest vulcanizing tank in Asia 

 

Our Services

1.Your inquiry related to our products or prices will be replied in 24hrs.

2.Well-trained and experienced staffs to answer all your enquires in fluent English
3.OEM&ODM, any your customized expansion joints, rubber lined pipe and Mill,we can help you to design and put into product.
4.Distributorship are offered for your unique design and some our current models
5.Protection of your sales area, ideas of design and all your private information
 

 

 

Company Information

Henan Liwei Industry Co., ltd. (the former Zhengzhou Liwei Rubber Products Co., Ltd.)  located at Shangjie District. Zhengzhou city is a manufacturer specializing in processing various steam, water, windpipe expansion and compensation joints, and a main base for producing rubber, metal and non-metallic pipe joints.

        Our Liwei brand flexible rubber joints have various heavy calibers, type and high quality in the county, The products series have won four patents and our company is named “Quality and Credit Unit” by Henan Province, Our product have become the first choices for national power design ,municipality and metallurgy units.

         At present, our product include four serial flexible rubber jointsthree types, tens of standard and common specification, eight series of metal pipe loosing compensation joints and fourteen standard specifications and types, eleven types of standard and common specification products for serial wind pipe non-metal compensatorsOur annual comprehensive production capacity can reach over forty thousand sets and we also process various pipe joint matching flat welding flanges (steel international/non-international standard). Our products have been sold in over thirty cities and autonomous regions, With China’s entry to the WTO; our products have been exported to foreign countries as Italy. Spain, Pakistan. Singapore and East European countries, etc, and the products have been become public famous brand products for design units and clients.

          Insisting on the rennet “Development Through Technology, Making More Friends, Creating Green Environment and Responsible for Future”, the company has been devoting itself to creating top products and well serving all clients around the world, Liwei brand products will be a red line between we and the clients for ever.

 

FAQ

Our Advantages:

(1)More than 24 years experience of manufacture

(2)The Main Drafting Units of Chinese Standard flexible rubber joint

(3)Compensator engineering research center of Zhengzhou city.

(4)Member of CNEA(China Nuclear Energy Association )

(5)ISO9001:2008 and ISO14001:2004 certificated by CNAS(China National Accreditation Service for Conformity Assessment)

(6)The largest vulcanizing equipment in China.

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