Larsen Supply Co., Inc. 225388 Graphite String Valve Packing

Product Description

The LARSEN SUPPLY CO., INC. 225388 is a graphite string valve packing designed for sealing valve stems in plumbing and mechanical systems. Supplied as a flexible graphite cord measuring 3/32 inch in diameter and 24 inches in length, it provides a durable, heat-resistant seal around valve stems to prevent leakage. Each card contains 6 pieces. Plumbers and pipefitters use this packing when servicing or repacking gate valves, globe valves, and similar stem-type valves found in residential and commercial water supply and heating systems.

This graphite string packing is suited for use in residential and light commercial plumbing applications where stem valves require repacking due to wear, age, or persistent dripping around the stem. It is commonly installed during valve maintenance service calls, planned shutdowns, or as part of a larger repair when a valve cannot be replaced outright. The 24-inch length provides enough material to repack multiple valves from a single piece, making it a practical shop and service-truck stock item.

Key Features

• Graphite construction offers heat resistance and corrosion resistance suitable for water and steam service
• 3/32 inch diameter cord fits standard small stem valve packing glands
• 24-inch length provides sufficient material for multiple repacking jobs
• Flexible string format allows the packing to conform tightly to the stem and gland
• Carded packaging keeps material clean and organized for field use
• Sold in a package quantity of 6 pieces

Compatibility

Designed as an OEM-style replacement packing for residential and commercial stem-type valves requiring 3/32 inch graphite string packing.

Installation Notes

Valve packing replacement is typically performed by a licensed plumber or pipefitter. Before servicing any valve, shut off the water supply upstream and relieve system pressure completely. Remove the old packing from the gland, clean the stem and gland bore, then wind the graphite string packing tightly around the stem before re-seating the packing nut. Work performed on pressurized or steam systems should comply with applicable IPC and local mechanical code requirements.