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Product Ref: 169RRG
Spirax Hills 1/2" Sight Check.Construction: Bronze and borosilicate glass.Combined sight glass and check valve used to observe discharges from steam traps. The position of the ball check indicates whether or not condensate is flowing. Where condensate rises after the trap it eliminates the need for a separate check valve thus simplifying installation.It is particularly useful for commissioning steam traps fitted with a steam lock release (SLR) unit. It can also be used on other liquid lines where the materials of construction are compatible.