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SMC (6540090) 815 Series Brass Check Valve ; 1/2" FNPT x 1/2" FNPT BUNA

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SMC (6540090) 815 Series Brass Check Valve ; 1/2" FNPT x 1/2" FNPT BUNA

SMC 6540090 • 815 Series

Brass Check Valve with BUNA Seal

1/2" FNPT threaded brass check valve prevents backflow in residential and commercial water filtration systems
Brass Construction BUNA Seals 1/2" FNPT Ports 815 Series
The SMC 815 Series brass check valve uses a BUNA elastomer seal to maintain one-way flow in pressurized water lines. Threaded 1/2" female NPT ports on both inlet and outlet make installation straightforward in reverse osmosis systems, filtration manifolds, and pump discharge lines.
SPECIFICATIONS

SMC 6540090 Technical Details

Model Number SMC 6540090
Series 815 Series
Body Material Brass
Seal Material BUNA (Nitrile)
Inlet Connection 1/2" FNPT
Outlet Connection 1/2" FNPT
Function Prevents backflow, maintains system pressure
COMPATIBILITY

Where This Valve Installs

The SMC 6540090 brass check valve fits any water filtration or treatment system with 1/2" NPT male threaded ports. Common applications include reverse osmosis system permeate lines, booster pump discharge protection, storage tank connections, and filtration manifold assemblies where backflow prevention is required. BUNA seals handle standard municipal water temperatures and pressures without degradation.

SMC 6540090 • 815 Series

Brass Check Valve with BUNA Seal

1/2" FNPT threaded brass check valve prevents backflow in residential and commercial water filtration systems
Brass Construction BUNA Seals 1/2" FNPT Ports 815 Series
The SMC 815 Series brass check valve uses a BUNA elastomer seal to maintain one-way flow in pressurized water lines. Threaded 1/2" female NPT ports on both inlet and outlet make installation straightforward in reverse osmosis systems, filtration manifolds, and pump discharge lines.
SPECIFICATIONS

SMC 6540090 Technical Details

Model Number SMC 6540090
Series 815 Series
Body Material Brass
Seal Material BUNA (Nitrile)
Inlet Connection 1/2" FNPT
Outlet Connection 1/2" FNPT
Function Prevents backflow, maintains system pressure
COMPATIBILITY

Where This Valve Installs

The SMC 6540090 brass check valve fits any water filtration or treatment system with 1/2" NPT male threaded ports. Common applications include reverse osmosis system permeate lines, booster pump discharge protection, storage tank connections, and filtration manifold assemblies where backflow prevention is required. BUNA seals handle standard municipal water temperatures and pressures without degradation.

$23.88
SMC (6540090) 815 Series Brass Check Valve ; 1/2" FNPT x 1/2" FNPT BUNA—
$23.88

Description

SMC 6540090 • 815 Series

Brass Check Valve with BUNA Seal

1/2" FNPT threaded brass check valve prevents backflow in residential and commercial water filtration systems
Brass Construction BUNA Seals 1/2" FNPT Ports 815 Series
The SMC 815 Series brass check valve uses a BUNA elastomer seal to maintain one-way flow in pressurized water lines. Threaded 1/2" female NPT ports on both inlet and outlet make installation straightforward in reverse osmosis systems, filtration manifolds, and pump discharge lines.
SPECIFICATIONS

SMC 6540090 Technical Details

Model Number SMC 6540090
Series 815 Series
Body Material Brass
Seal Material BUNA (Nitrile)
Inlet Connection 1/2" FNPT
Outlet Connection 1/2" FNPT
Function Prevents backflow, maintains system pressure
COMPATIBILITY

Where This Valve Installs

The SMC 6540090 brass check valve fits any water filtration or treatment system with 1/2" NPT male threaded ports. Common applications include reverse osmosis system permeate lines, booster pump discharge protection, storage tank connections, and filtration manifold assemblies where backflow prevention is required. BUNA seals handle standard municipal water temperatures and pressures without degradation.

SMC (6540090) 815 Series Brass Check Valve ; 1/2" FNPT x 1/2" FNPT BUNA | Isopure Water