The D559T1-1M-5 is a 500 series pressure relief valve equipped with a deflector cap. Designed as a non-ped pop-off relief valve, this component features a durable 316 stainless steel body and reliable Buna-N seals. It operates within a wide temperature range of -65°F to +275°F (-54°C to +135°C). The valve is built with a 1/8" male NPT pipe thread connection designated for vent only use. It features a cracking pressure of 5 psig with a tight cracking pressure tolerance of ±5%, making it suitable for precise overpressure protection in industrial applications requiring stainless steel construction and dependable elastomeric sealing.
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| Manufacturer | Circle Valve |
|---|---|
| Country | |
| Part number | D559T1-1M-5 |
| Inner Code | 5311286 |
| Product type | 500 series pressure relief valve |
|---|---|
| Series | 500 series |
| Valve Type | Non-ped pop-off relief valve |
| Seal Material | Buna N |
| Temperature Range | -65°F to +275°F (-54°C to +135°C) |
| Body Material | 316 St. Steel |
| Valve Size & Connection | 1/8" male NPT pipe threads (vent only) |
| Cracking Pressure | 5 psig |
| Cracking Pressure Tolerance | ±5% |