Petrochemical & LNG
Expansion Joint Series

Relying on self-development and the patent & know-how from TECHNOFLEX, China VOLINCO has become a world class supplier of expansion joints and a member of EJMA, a global recognized expansion joint association, supplying high qualityexpansion joints for FCC, Ethylene, Styrene, PE/PP, PTA , PDH, MTO units in petrochemical and coal chemical industries.


China VOLINCO has supplied expansion joints for petrochemical and coal chemical industries, involving in major projects of SINOPEC, CNPC , CNOC, Shenhua Group, BP, BASF, BAY ER in China and other countries across the world.



- UOP technique for FCC units.

- LUMMUS technique for styrene and PDH units.

- Bellows materials include INCONEL 600/625(LCF), INCOLOY 800(H)/825, dual phase steel, super stainless steel, Titanium, Monel and Hastelloy refractory liner and hot wall/cold wall structures for refinery units.

- Two-ply bellows alarm device for critical occasions (patent technology).

- Avoid sweeping of medium deposit and filling bellows.

- Deposit welding of bellows and connection pipes to avoid corrosion due to aeolotropic materials welding.

- Solid-solution treatment of bellows to improve anticorrosion.

- Double-elbow expansion pipe technique to avoid the welding stress in the transition section.

- Floating ring to reduce the pipeline stress on the hot wall.









Copyright © 2014 All rights reserved China Volant Industry Co., Ltd. China Record number: Beijing ICP 05067351
Address: Room No. 703, 7th floor of Building No. 1, No. 11 Changchunqiaolu, Haidian District, Beijing, P. R. China