SMC (5720990) 426 Series PVC NSF Check Valve ; 1/8" FPT x 1/8" FPT BUNA
SMC 426 Series Check Valve Core Specs
Complete Valve Specifications
| Manufacturer | SMC |
| Model Number | 5720990 |
| Series | 426 Series |
| Thread Size | 1/8" Female Pipe Thread (FPT) both ends |
| Housing Material | PVC (Polyvinyl Chloride) |
| Seal Material | BUNA-N (Nitrile Rubber) |
| NSF Certification | Yes, NSF-certified for potable water contact |
Where This Check Valve Fits
The SMC 426 Series check valve installs inline on 1/8" threaded connections to prevent reverse flow in RO systems, booster pump lines, and water treatment equipment. The BUNA-N seals handle standard municipal water temperatures and pressures, while the PVC body resists corrosion from treated water. Thread both 1/8" FPT ports into existing plumbing using compatible male adapters or fittings. Ideal for protecting pumps, gauges, and sensitive filtration components from backpressure or siphoning.
SMC 426 Series Check Valve Core Specs
Complete Valve Specifications
| Manufacturer | SMC |
| Model Number | 5720990 |
| Series | 426 Series |
| Thread Size | 1/8" Female Pipe Thread (FPT) both ends |
| Housing Material | PVC (Polyvinyl Chloride) |
| Seal Material | BUNA-N (Nitrile Rubber) |
| NSF Certification | Yes, NSF-certified for potable water contact |
Where This Check Valve Fits
The SMC 426 Series check valve installs inline on 1/8" threaded connections to prevent reverse flow in RO systems, booster pump lines, and water treatment equipment. The BUNA-N seals handle standard municipal water temperatures and pressures, while the PVC body resists corrosion from treated water. Thread both 1/8" FPT ports into existing plumbing using compatible male adapters or fittings. Ideal for protecting pumps, gauges, and sensitive filtration components from backpressure or siphoning.
Description
SMC 426 Series Check Valve Core Specs
Complete Valve Specifications
| Manufacturer | SMC |
| Model Number | 5720990 |
| Series | 426 Series |
| Thread Size | 1/8" Female Pipe Thread (FPT) both ends |
| Housing Material | PVC (Polyvinyl Chloride) |
| Seal Material | BUNA-N (Nitrile Rubber) |
| NSF Certification | Yes, NSF-certified for potable water contact |
Where This Check Valve Fits
The SMC 426 Series check valve installs inline on 1/8" threaded connections to prevent reverse flow in RO systems, booster pump lines, and water treatment equipment. The BUNA-N seals handle standard municipal water temperatures and pressures, while the PVC body resists corrosion from treated water. Thread both 1/8" FPT ports into existing plumbing using compatible male adapters or fittings. Ideal for protecting pumps, gauges, and sensitive filtration components from backpressure or siphoning.
