Project Description

V-Flex Connectors

In this Paragraph, I am going to talk about V-Flex Connectors. Firstly they are designed to absorb thermal expansion or contraction, or for seismic isolation of steel pipe or copper tube installations. Next the braided metal hose elements that are incorporated into the design offer benefits that are not available in other products that are used for these applications, and the unique  “V” configuration provides advantages over other metal hose connectors.

Thermal Expansion Applications

V-Flex Connectors are available as standard products for 1/2″ through 4″ nominal pipe size. They also have stainless steel braided hose and steel fittings – flanged, weld end or grooved. Design conditions are 150 psig and 500ºF with a choice of 2″, 3″ or 4″ of travel.

Seismic Applications

V-Flex Connectors installed for seismic separation require an intermediate anchor on each side, if the separation that is no greater than the overall length of the V-Flex Connector plus four pipe diameters on each side. Furthermore, if the separation is greater, an alignment guide  must be installed within four pipe diameters from the V-Flex.

Standard Design

Moreover, alignment guides do not provide support for the weight of the system. Therefore, it may be necessary to install additional guides for long flexible runs to ensure alignment.

Guides, Supports, Anchors

V-Flex Connectors require anchors, guides and supports. Refer to us for for the guide and anchor requirements. It may be necessary to support the center elbow of the connector- refer to the illustrations of horizontal and vertical installations.

Flow Direction

The flow can be in either direction.


  • Inspect the connector for damage with special attention to the wire braid.
  • Is the connector at the correct location as specified?
  • Are the anchors and guides correctly installed? Are the guides free to move?
  • Confirm that the connector length is correct.
  • Confirm center elbow of the connector supported.