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The BuTech FPBC4 is a compact stainless-steel ball check valve designed to prevent backflow in male or female 1/4" NPT piping systems. Constructed from 316 cold-worked stainless steel with a 17-4PH poppet, it provides reliable metal-to-metal sealing up to 15,000 psi. It requires no elastomers, making it suitable for extreme environments with temperatures ranging from −420 °F to +1200 °F. Lightweight and robust, it’s ideal for sample lines, instrumentation panels, and high-pressure fluid systems where tight shutoff isn’t necessary.
- Prevents reverse flow in 1/4" NPT systems up to 15,000 psi
- Durable 316 SS body with 17-4PH poppet for metal-to-metal sealing
- No elastomers—suitable for extreme temperatures (−420 °F to +1200 °F)
- Compact and lightweight for tight-space installations
- Simple inline design—no manual operation required
| Model | FPBC4 |
| Connection | 1/4" FNPT Female Pipe Connections |
| Material | 316 Cold-Worked Stainless Steel; 17-4PH Poppet |
| Pressure Rating | 15,000 psi (1,030 bar) |
| Operating Temperature | −420 °F to +1200 °F (−251 °C to +648 °C) |
| Cv | 0.63 |
| Length | 2.94" |
| Hex Size | ~3/4" Across Flats |