Birkett 480 Bypass Valve


SKU: 480 Categories: , Tags: , ,

This spring operated liquid relief valve has a cartridge type assembly which can be withdrawn from the body without disturbing the spring setting and hence relieving pressure. This allows the seating surfaces to be cleaned without the need to reset the valve. The 480 is a bronze relief valve, the 485 is also bronze with a renewable stainless steel seat and disc, while the 490 is all stainless steel. Typically for use on positive displacement pumps, for relief or bypass duties. The spring cartridge assembly can be supplied separately for use as an integral pump bypass relief valve. The spindle is normally fitted with an ‘O’ ring to protect the spring particularly on corrosive duties.

Sizes Stocked: ¾”, 1″

Other Sizes Available: 1½”, 2″, 3″

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