在白沙酒店晚上怎么叫服务

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B2F (vssja-2) double flange limited expansion joint is composed of body, sealing ring, gland, expansion pipe and other main parts. On the basis of the original performance of the loose sleeve expansion joint, a limit device is added, and a double nut is used to lock the large expansion joint. B2F (vssja-2) double flange limit expansion joint is suitable for both sides to be connected with flange. When installing, adjust the connection length of both ends of the product, tighten the gland bolts evenly in diagonal sequence, and then adjust the limit nut. In this way, the pipeline can be freely expanded and the expansion amount can be locked, so as to ensure the safe operation of the pipeline.

[product name]: vssja-2 double flange limit expansion joint (B2F double flange loose sleeve limit compensation joint)

[product alias]: double flange expansion joint double flange limit expansion joint

[product specification]: [dn65mm-dn3600mm]

[product pressure]: 0.6-1.0mpa

[product certification]: ISO9001-2008

[scope of application]: [weak acid, weak base, weak corrosion, oil, hot water, cold water, etc.]

[product material]: carbon steel, ductile iron, stainless steel

[product color]: blue, color matching according to customer requirements

[operating temperature]: - 40 ℃ to 80 ℃

  • Quality stability: the implementation of the whole process of quality monitoring, meticulous, all-round detection!
  • Reasonable price: efficient internal cost control, reduce expenses, and benefit customers!
  • Fast delivery: advanced production line, sufficient stock, shorten the delivery time!
  •  Expansion joint
  •  Limit expansion joint
  •  Double flange limit expansion joint
  •  Expansion joint
  •  Limit expansion joint
  •  Double flange limit expansion joint

Online consultation

Purchase hotline: 021-6221-2627

Product advantages

B2F (vssja-2) double flange limited expansion joint is composed of body, sealing ring, gland, expansion pipe and other main parts. On the basis of the original performance of the loose sleeve expansion joint, a limit device is added, and a double nut is used to lock the large expansion joint. The pipeline can freely expand and expand in the allowable expansion amount. Once it exceeds the large expansion amount, it will play a limit to ensure the safe operation of the pipeline. It is especially suitable for the connection in the pipeline with vibration, certain slope and bend.
The product has large expansion and contraction, convenient and fast installation. It is suitable for pipes with flange connection at both ends. B2F (vssja-2) double flange limit expansion joint can realize the axial displacement compensation of the pipeline, and can greatly reduce the axial thrust of the pipeline during operation, so as to prolong the service life of the pipeline and protect the safe operation of the pipeline. And installed on the pipeline can facilitate the disassembly and maintenance of the valve, and can overcome the adverse impact of ground subsidence on the pipeline line.

Product features

B2F (vssja-2) double flange loose sleeve limited expansion joint is suitable for both ends of pipeline with flange connection. During installation, adjust the installation length between both ends of the product and the pipe or flange, tighten the gland bolts evenly at opposite angles, and then adjust the limit nut, so that the pipeline can freely expand and contract within the scope of expansion, lock the expansion amount, and ensure the safe operation of the pipeline. 1. Large expansion and long service life. 2. It is convenient for the disassembly and assembly of valves and is conducive to the regular maintenance of pipelines. This product can effectively protect the pipeline from the adverse effects of ground subsidence. 4. Excellent material and stable operation. B2F (vssja-2) double flange limit expansion joint is suitable for conveying seawater, fresh water, cold and hot water, drinking water, domestic sewage, crude oil, fuel oil, lubricating oil, product oil, air, gas, steam with temperature not higher than 250 ℃ and particle powder.

classic case

Bazhou makes every effort to promote the start of 800000 tons petrochemical project


During the Spring Festival, international crude oil fluctuated sharply around $30 a barrel. On February 15, the reporter learned from Bazhou economic and information commission that Bazhou seized the opportunity of crude oil low price, and vigorously promoted the construction of upstream C3 + hydrocarbon mixing project of 800000 tons of ethane to ethylene, so as to consolidate the traditional petroleum and petrochemical industry and promote its stable growth.
In 2016, Bazhou will continue to maintain and consolidate this traditional advantage and continue to support the exploration and development of oil and gas resources. We will strengthen cooperation and co construction between oil and land, vigorously support PetroChina and Sinopec to stabilize and increase production, strive to keep crude oil production and crude oil processing capacity unchanged and increase on the basis of 2015. The added value of the oil industry will increase by more than 2%, so as to further improve the contribution rate of oil and gas exploitation industry to industrial growth.
With the increase of oil and gas production, the use of oil pipeline will be more frequent, so the double flange limited expansion joint, as the main part of the pipeline, will shoulder more important responsibilities. Shanghai Luoying specializes in producing all kinds of double flange limit expansion joints, As the main pipeline accessories supplier of petrochemical project, we will try our best to supply good pipeline expansion device to ensure the stability of pipeline operation.

Product diagram

 Double flange limit expansion joint

Parts materials

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 Vssja-2 (B2F) double flange limited expansion joint

No Name Quantity Material
one Body one QT400-15,Q235A,ZG230-450,20
two Gasket one NBR
three Cover one QT400-15,Q235A,ZG230-450,20
four Limited short pipe one Q235A,20,16Mn
five Nut 4n Q235A,20,1Cr18Ni9Ti
six Long stud n Q235A,35,1Cr18Ni9Ti
seven Bolt n Q235A,35,1Cr18Ni9Ti

technical parameter

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 Vssja-2 (B2F) double flange limited expansion joint

Nominal diameter
Nomina iameter
DN
Tube outer diameter
External diameter
of pipe Dw
Dimensions
Length
Expansion and contraction
Compensation
△L
Flange connecting dimension
0.6Mpa 1.0Mpa
L L1 D D1 n-do D D1 n-do
sixty-five seventy-six three hundred and forty one hundred and five fifty one hundred and sixty one hundred and thirty 4-Φ14 one hundred and eighty-five one hundred and forty-five 4-Φ18
eighty eighty-nine one hundred and ninety one hundred and fifty 4-Φ18 two hundred one hundred and sixty 8-Φ18
one hundred one hundred and eight two hundred and ten one hundred and seventy two hundred and twenty one hundred and eighty
one hundred and fourteen
one hundred and twenty-five one hundred and thirty-three three hundred and forty one hundred and five fifty two hundred and forty two hundred 8-Φ18 two hundred and fifty two hundred and ten 8-Φ18
one hundred and forty
one hundred and fifty one hundred and fifty-nine two hundred and sixty-five two hundred and twenty-five 8-Φ18 two hundred and eighty-five two hundred and forty 8-Φ22
one hundred and sixty-eight
two hundred two hundred and nineteen three hundred and twenty-one two hundred and eighty three hundred and forty two hundred and ninety-five
two hundred and fifty two hundred and seventy-three three hundred and seventy-five three hundred and thirty-five 12-Φ18 three hundred and ninety-five three hundred and fifty 12-Φ22
three hundred three hundred and twenty-five three hundred and fifty one hundred and thirty sixty-five four hundred and forty three hundred and ninety-five 12-Φ22 four hundred and forty-five four hundred
three hundred and fifty three hundred and seventy-seven four hundred and ninety four hundred and forty-five five hundred and five four hundred and sixty 16-Φ22
four hundred four hundred and twenty-six five hundred and forty four hundred and ninety-five 16-Φ22 five hundred and sixty-five five hundred and fifteen 16-Φ26
four hundred and fifty four hundred and eighty five hundred and ninety-five five hundred and fifty six hundred and fifteen five hundred and sixty-five 20-Φ26
five hundred five hundred and thirty six hundred and forty-five six hundred 20-Φ22 six hundred and seventy six hundred and twenty
six hundred six hundred and thirty seven hundred and fifty-five seven hundred and five 20-Φ26 seven hundred and eighty seven hundred and twenty-five 20-Φ30
seven hundred seven hundred and twenty eight hundred and sixty eight hundred and ten 24-Φ26 eight hundred and ninety-five eight hundred and forty 24-Φ30
eight hundred eight hundred and twenty five hundred and ninety two hundred and twenty one hundred and thirty nine hundred and fifty nine hundred and twenty 24-Φ30 one thousand and fifteen nine hundred and fifty 24-Φ33
nine hundred nine hundred and twenty one thousand and seventy-five one thousand and twenty one thousand one hundred and fifteen one thousand and fifty 28-Φ33
one thousand one thousand and twenty one thousand one hundred and seventy-five one thousand one hundred and twenty 32-Φ33 one thousand two hundred and thirty one thousand one hundred and sixty 28-Φ36
one thousand and two hundred one thousand two hundred and twenty one thousand four hundred and five one thousand three hundred and forty one thousand four hundred and fifty-five one thousand three hundred and eighty 32-Φ40
one thousand and four hundred one thousand four hundred and twenty one thousand six hundred and thirty one thousand and five hundred 36-Φ36 one thousand six hundred and seventy-five one thousand five hundred and ninety 36-Φ42
one thousand and five hundred one thousand five hundred and twenty one thousand seven hundred and thirty one thousand six hundred and sixty      
one thousand and six hundred one thousand six hundred and twenty one thousand eight hundred and thirty one thousand seven hundred and sixty 40-Φ36 one thousand nine hundred and fifteen one thousand eight hundred and twenty 40-Φ48
one thousand and eight hundred one thousand eight hundred and twenty two thousand and forty-five one thousand nine hundred and seventy 44-Φ40 two thousand one hundred and fifteen two thousand and twenty 44-Φ48
two thousand two thousand and twenty two thousand two hundred and sixty-five two thousand one hundred and eighty 48-Φ42 two thousand three hundred and twenty-five two thousand two hundred and thirty 48-Φ48
two thousand and two hundred two thousand two hundred and twenty two thousand four hundred and seventy-five two thousand three hundred and ninety 52-Φ42 two thousand five hundred and fifty two thousand four hundred and forty 52-Φ56
two thousand and four hundred two thousand four hundred and twenty two thousand six hundred and eighty-five two thousand and six hundred 56-Φ42 two thousand seven hundred and sixty two thousand six hundred and fifty 60-Φ56
two thousand and six hundred two thousand six hundred and twenty six hundred two hundred and forty one hundred and forty two thousand nine hundred and five two thousand eight hundred and ten 60-Φ48 two thousand nine hundred and sixty three thousand and seventy 64-Φ56
two thousand and eight hundred two thousand eight hundred and twenty three thousand one hundred and fifteen three thousand and twenty 64-Φ48 three thousand one hundred and eighty three thousand two hundred and ninety 68-Φ60
three thousand three thousand and twenty three thousand three hundred and fifteen three thousand two hundred and twenty 68-Φ48 three thousand four hundred and five    
three thousand and two hundred three thousand two hundred and twenty three thousand five hundred and twenty-five three thousand four hundred and thirty 72-Φ48      
three thousand and four hundred three thousand four hundred and twenty three thousand seven hundred and thirty-five three thousand six hundred and forty 76-Φ48      
three thousand and six hundred three thousand six hundred and twenty three thousand nine hundred and seventy three thousand eight hundred and sixty 80-Φ56      
Note: the size meets the standard GB / t12456-2002

B2F (vssja-2) double flange limited expansion joint is made up of main parts such as body, sealing ring, gland and expansion pipe. On the basis of the original performance of the loose sleeve expansion joint, a limit device is added, and a double nut is used to lock the large expansion joint. The pipeline can freely expand and expand in the allowable expansion amount. Once it exceeds the large expansion amount, it will play a limit to ensure the safe operation of the pipeline. It is especially suitable for the connection in the pipeline with vibration, certain slope and bend.

Product service

Professional manufacturing, professional services, Luoying to create more value for you!
Constantly improve the quality of service, excellence, "sincere service" is the eternal theme of Luo Ying. Luo Ying strictly in accordance with ISO9001-2000 quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. To strengthen communication with users, we will wholeheartedly provide customers with high-quality products and perfect services. Hereby, Luo Ying makes the following commitments:

Product standards
The products are designed, manufactured and accepted in strict accordance with Chinese GB, Hg standards and American API standards. The width of sealing surface exceeds the national standard.
Pre sales service
Product introduction, technical exchange, non-standard product design, troubleshooting.
In sale service
1. Keep the contract, ensure timely supply, keep in touch with customers at any time. 2. For special or complex products, our factory arranges technical personnel to train and guide users in the use, troubleshooting, adjustment and maintenance of products.
after-sale service
1. The warranty period of Luoying's products is 12 months from the date of delivery, and the "Three Guarantees" service (return, replacement and repair) is implemented.
2. During the use of the products, our factory regularly organizes technical and inspection personnel to visit and consult users for feedback on product quality, use status and improvement opinions, so as to further improve product quality.
3. After sales service personnel rush to the scene within 24-36 hours (48 hours outside the province).
4. For after-sales service, users are required to fill in the quality feedback form after service, and make appraisal opinions, so as to jointly improve the product quality and service quality of Luoying.

Ordering process and instructions

1. Please fax customer purchase list to 021-64207088 e-mail: Luoying @ luoyingsh.com or call 021-622122627.
2. List and price list of products for customers.
3. Specific agreement: delivery date, special requirements and other matters.


Ordering instructions
1. If the customer has special requirements for the product, the following instructions shall be provided in the order contract:
(1) Structural length
(2) Connection form
(3) Nominal diameter, full bore, reduced diameter, pipe size
(4) Medium range and temperature
(5) Our factory can make and design special products according to the special requirements of customers.
2. Our factory can configure and design special products according to the special requirements of customers.
3. If the customer provides the determined product type and model, the customer shall correctly explain the meaning and requirements of the model, and sign the contract under the condition that both parties understand and agree.

Online submission of demand feedback

You can fill in the form below and submit your contact information and product requirements to us. We will contact you as soon as possible. Thank you! In order to get in touch with you in time, please fill in your contact information and requirement information completely.

在白沙酒店晚上怎么叫服务

contact us

  • Customer service hotline: 021-6221-2627
  • Business QQ: 319992131
  • Business fax: 021-6420-7088
  • Email: info@luoyingsh.com
  • Company address: Building 10, north side of Songzheng highway, Shihudang Town, Songjiang District, Shanghai
  • Post code: 201201

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