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Cold formed from steel conforming to ASTM-grade
Inner nipples employ two "O-rings" to provide added assurance of sealing
The "F" model is designed to keep "O-rings" from impinging upon the 1 in (1") inlet threads when fully retracted
The bore of the outer nipple is precision formed to a close tolerance while held to a micro finish of 50 to provide for positive sealing of the "O-rings"
Each unit is hydrostatically tested to insure O-ring integrity prior to shipment
Each unit is marked with a lot number to insure full traceability
Qualifying tests on all models are performed at 1500 psi, while the various models are rated for 300 psi operation
Marketing Information
Merit® Eliminator adjustable drop nipples provide the user with the ability to adjust fire sprinkler assemblies (concealed, recessed or pendent) to fit flush to the finished ceiling without having to cut a drop nipple or drain the system.
ANVIL® 0363193509 Adjustable Drop Nipple, 300 deg F, Steel