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The TS BRASS 002711-40NS / NAPSD BULK is a cold-side stem check valve assembly that includes a bonnet and handle, designed for 1/4-turn operation. This assembly controls cold water flow at the valve stem level and is used in commercial and institutional plumbing systems where reliable shutoff and check function are required. The non-lead (NS) designation indicates compliance with low-lead or lead-free material requirements applicable to potable water supply fittings. This listing covers a bulk pack quantity of 2 units, suited for service contractors or facilities maintenance operations. Licensed plumbers and commercial plumbing technicians are the primary installers of this type of valve assembly.
This stem check cold assembly is appropriate for commercial sink faucets, service faucets, and institutional plumbing fixtures that use the TS Brass Eterna cartridge system. The 1/4-turn mechanism allows for quick shutoff without full rotation, which is useful in high-use or service-intensive environments such as commercial kitchens, healthcare facilities, and institutional buildings. This bulk pack of 2 is well-suited for contractors stocking replacement parts for ongoing service agreements or facilities with multiple Eterna-equipped fixtures.
Designed as an OEM-style replacement for commercial plumbing fixtures using the TS Brass Eterna 1/4-turn stem check cartridge system.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and IPC guidelines. Shut off the cold water supply and relieve line pressure before disassembling the valve or removing the existing stem check. Use appropriate valve seat tools and ensure the bonnet is seated and torqued per the fixture manufacturer guidance. Do not overtighten plastic or soft-seat components when reassembling.
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