VSSJA-1 Single Flange Limit Expansion Joint

Update£º2016/12/17 10:43:24      Click£º
  • Brand   lanphan
  • Model   VSSJA-1
  • Description

    On basis of original property, VSSJA-1 single flange limit expansion joint adds stop devices, use do...

Product Introduction
VSSJA-1 single flange limit expansion joint
Product Description

VSSJA-1 single flange limit expansion joint, when install the product on pipeline, screw down the nut, make elastic O-ring seal rely on elastic deformation and coordinate inclination to press tightly on pipe outside, playing function of sealing and connecting. VSSJA-1 single flange limit expansion joint mainly used for pipeline connection of water, oil, gas and particle powder medium, it¡¯s a new pipeline connecting product for pump and valves. It embraces advantages of reasonable structure, reliable sealing property, convenient installation and displacement compensation. On basis of original property, it adds stop devices, use double nuts to lock at max expansion amount place, in this way to make pipeline flex freely within allowable expansion amount, once exceed max expansion amount, the limiting bolt will efficiently prevent pulling off, especially suitable for pipeline with vibration and inclination.

Since VSSJA-1 single flange limit expansion joint is metal product, it has higher tensile and compressive strengthen, good sealing property, easy to assemble and unassemble, has been widely used in electric power, metallurgy, water supply and drainage, and sewage treatment industries, mainly used for water pump and pipeline connection. It protected the pipeline, especially convenient for pipeline installation and maintenance.

Tips: VSSJA-1 single flange limit expansion joint is not suitable for water pump exit and pipeline corner, metal dismantling joint is the best choice. Because dismantling bolt will transmit blind plate thrust to everywhere of the pump and pipeline, that avoid the blind plate thrust concentrating on near end of pipeline or pump, in case of impact force damage equipments.

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our service

Pre-Sales Service

  1. According to product¡¯s using condition, technicians will offer rationalization;
  2. Provide detailed product performance specification;
  3. Provide professional quoted price;
  4. Provide 24-hour technical consulting reply.

In-Sales Service

  1. Begin to supervise from raw material, its qualified rate can reach to 100%;
  2. Whole manufacturing process are in strict accordance with promised procedure requirements, product qualified rate can reach to 100%;
  3. Provide product¡¯s inspection record of key junctures to customers;
  4. Provide production schedule photos to customers at regular intervals;
  5. Package and transport products strictly accordance with export standard.

After-Sales Service

  1. Under the premise of correct installation, normal maintenance and using, we guarantee one-year warranty period;
  2. When warranty period has expired, our sold products enjoys lifetime guarantee repair, we only charge cost price for changing product¡¯s standard component and sealing component;
  3. During installation and adjustment period, our after-sale service staff will communicate with customers frequently to know product¡¯s running state in time. Assist customers to install and adjust products until customers are satisfied;
  4. If product has malfunction during operation period, we¡¯ll offer you satisfied answer in time. We¡¯ll reply you within 1 hour and provide solution or send staff to spot within 24 hours after receiving maintenance notification.
  5. Lifelong free technical support. Conduct satisfaction survey and inquiry equipment running condition to clients by telephone or e-mail semiannually from the first day of equipment running, put on records of acquired information.


  1. Can connecting flange satisfy America connection dimension?
    Yes, all products can custom-made according to client requirements.
  2. What¡¯s the antiseptic treatment way for spacing bolt?
    Galvanize antiseptic.
  3. What¡¯s the spraying method for carbon steel spraying?
    Generally use epoxy spraying.
  4. What's your painting thickness?
    Our painting thickness is ¡Ý200 micron.
  5. Can you provide installation instruction?
    We will provide professional installation instruction and maintenance manual.


packaging & shipping


  1. Carton+wooden cases.
  2. Customized packaging can be available.


  1. We can ship the goods to you by International Express such as DHL,UPS,TNT,EMS and so on.
  2. You can also choose the appropriate one based on your timeline and budget.
  3. You can choose to use your own shipping agent.
Shipping method Note
Express Door to door, very convenient, don't need to clearance or pick-up
By air Airport to airport, you need to do the customs clearance and pick up the goods at your local airport, which you can have a local shipping agent to do for you.
By sea Port to port and you need to do the customs clearance and pick-up the goods at your local port, which you can have a local shipping agent to do for you.


Economical efficiency:

  1. Easy to install, no need of additional tools.
  2. Add stop device in max expansion amount place, ensure safety operation of pipeline.
  3. Wide application range, good quality sealing rubber strip.

Displacement property:

  1. VSSJA-1 single flange limit expansion joint has displacement function.


  1. O-ring seal¡¯s fracture surface is trapezoidal frame structure, touch pipe wall in a large area, enhanced its sealing property.
  2. No leakage and no deformation in connecting parts.


  1. Bothway spacing function, ensure pipeline safety operation.
  2. Deflection and eccentricity. In general, the deflection is 5¡ã¡À1¡ã, eccentricity is 3mm ¡À 1mm.
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