American Engineering Trusted Wordwide ®DATA SHEET
680-4
11/08/2025 5:42 AM
| Product Category | 680-4 |
| Product Line | O-SEAL® Check Valves (600 Series) |
| Part Description | 3/4" Globe Check Valve with O-SEAL® Ends |

| Port Dia. | 0.63 |
| A | 4.630 |
| B | 2.81 |
| CRN | 0C17716.2 |
| C-THREAD | 2.000"-12UN |
| Pressure Rating | 6000 PSI |
| Temperature Range | -15°F to 275°F (-26°C to 135°C) |
| Standard Soft Goods | [-C] Viton® O-Rings |
| Cartridge Type | Check |
| Connection Type | O-SEAL® Union Thread |
| Connection Size | 3/4" |
| Body Material | Nickel Aluminum Bronze, ASTM B148, UNS C95800 |
| Bonnet Material | Nickel Aluminum Bronze, ASTM B150, UNS C63200 |
| CRN | 0C17716.2 |
| Port & Vent Options | [-PA] Port Above Seat (1/4" NPT), [-PB] Port Below Seat (1/4" NPT), '[-VA] Vent Above Seat (1/2"-13 SAE), [-VB] Vent Below Seat (1/2"-13 SAE), |
| Optional Soft Goods | [-B] Polyurethane® Packing and Buna-N O-Rings, [-C] Viton® Packing & O-Rings, [-D] EPDM Packing & O-Rings |