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Tank Fittings | Bulkhead Fittings

 

Illustration of a tank fittingBulkhead fittings, commonly referred to as tank fittings, are used whenever a pipe or flow control device must pass through or be inserted into a tank or vessel wall.  We offer four designs of tank fittings made of PVC, CPVC and Polypropylene materials having either EPDM or FPM sealing gaskets.

 

Short Length Tank Fittings

These have a shorter length body and are available in ½" to 4" sizes with socket x thread or thread x thread configurations.  Its shorter length body is compatible for vessel wall thicknesses up to 1" (up to 2.45" for the 4" size).

 

Standard Length Tank Fittings

The longer length body of these bulkhead fittings enables them to be used for wall thicknesses up to 2" (over 2" for the 3" - 6" sizes).  These are offered in ½" to 6" sizes in socket x thread, socket x socket and thread x thread configurations.

 

Large Flange Tank Fittings

When the hole in the vessel wall is larger than can be sealed with the above bulkhead fittings, this oversized model for ½", ¾" and 1" sizes can be used because its flange and gasket are extra large.  These are available in socket x thread, socket x socket and thread x thread configurations.

 

Self-Aligning Tank Fittings

Swiveling tank fittingUnlike standard bulkhead fittings, self-aligning bulkhead fittings have a swiveled configuration which enables up to a 27º adjustment.  These are especially handy when used with dome top and cone bottom tanks as well as other curved surfaces.  Available 1", 2" and 3" sizes in PVC having a thread x thread configuration.

 

Compression Ring

This tank fitting accessory ensures a constant load on the bulkhead fitting gasket and thus eliminates the need to periodically retighten tank fittings.  This compression ring compensates for wall expansion and contraction related to temperature or pressure within the tank.  The constant pressure against the tank fitting also reduces the possibility of loosening due to system vibration.  Compression rings reduce routine maintenance as well as leakage and the effects of leakage on the environment.