Parveen Industries Pvt. Ltd. Offers Expansion Joint. The Expansion Joint falls in the category of Down Hole Flow Control Systems. Parveen Industries Pvt. Ltd. Is an ISO 9001:2000 certified company. The Expansion Joint provides alternate methods of compensating for tubing contraction and elongation in producing, injection and disposal wells. The Expansion Joints are run as an integral part of the tubing string and offer full tubing drift I.D. Compatible with other down-hole control equipment. After packers and associated equipment are in place, Expansion Joints may be activated. The Expansion Joints may be selected to be activated by shear pin or with standard wireline tools.