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McDonnell Miller Series TC-4 Test-N-Check® Valves

Test-N-Check® Valves
Series TC-4

• For hot water boilers
• Simplifies ASME CSD-1A. code mandated testing of low water cut-offs by eliminating the need to drain the system

• Restricts water flow when the low water cut-off’s blow down valve is open
• Adjustable built-in vacuum breaker in upper valve provides rapid evacuation of water from the float chamber
• 1” NPT
• Maximum temperature 250°F (121°C)
• Maximum pressure 160 psi (11 kg/cm²)

Select a link under the "item" tab below to order.

Cat #DescriptionsPart NumberWeight Ibs.(kg)
TC-4Test-N-Check Valves, set of 21950005.3 (.4)


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