Legend Valve
Legend Valve 101-211 4 inch S-1001 ball valve
Forged brass full-port ball valve in a four-inch size for air compressor and vacuum pump systems
- Forged brass construction resists corrosion for long service life
- Full-port design allows unrestricted flow through the valve
- 4-inch S-1001 model fits standard piping systems
- Legend Valve 101-211 ensures reliable shut-off control
- California Proposition 65 warning included for chemical safety awareness
Valve for Air Compressor Systems
The Legend Valve 101-211 is a 4-inch forged brass full-port ball valve built for air compressor and vacuum pump installations. It provides a straight-through flow path that minimises pressure drop across the fitting. Industrial maintenance teams and facility engineers use it to isolate sections of compressed-air piping during service work. The valve meets the S-1001 pattern for reliable shut-off in demanding environments.
Replaces Worn Shut-Off Valves
This valve replaces older gate or globe valves that leak internally or require multiple turns to close. The quarter-turn handle gives immediate visual confirmation of open or closed position. The jump is worth it when an existing valve no longer holds pressure or when maintenance windows demand faster isolation. It is not suited for applications requiring throttling control or for piping systems smaller than the nominal 4-inch connection.
Limits of Threaded Brass Construction
The forged brass body and threaded ends limit use to pressures and temperatures within the material's standard rating. Thread sealant must be compatible with brass to avoid stress corrosion cracking. The valve cannot be welded into place and is not designed for continuous modulation of flow. California Proposition 65 warnings apply because the brass alloy contains chemicals listed by the state as carcinogenic and reproductive toxins.
Highlights
- Forged brass construction resists corrosion for long service life
- Full-port design allows unrestricted flow through the valve
- 4-inch S-1001 model fits standard piping systems
- Legend Valve 101-211 ensures reliable shut-off control
- California Proposition 65 warning included for chemical safety awareness
Specifications
| Brand | LEGEND VALVE |
|---|
Questions about this item
What size pipe threads does the 4 inch S-1001 ball valve accept?
The valve uses 4 inch pipe threads for direct connection to matching pipework.
How is the forged brass full port ball valve installed, and what step is often missed?
Apply thread sealant to the male threads, tighten with a wrench on the valve body flats, then operate the handle to verify free movement before pressurising.
When should the PTFE seats or stem packing be replaced on this ball valve?
Replace seats or packing if the handle becomes stiff, the valve fails to seal fully in the closed position, or external leakage appears at the stem.
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