| Rated Working Pressure (connected, HQC4/HQC6/HQC8) | 3600 / 1500 / 750 psi |
| Allowable Pressure for Connection under Pressure | 250 psi (common to all models) |
| Material | Stainless steel (machined parts, springs and retaining rings AISI type 316), seal O-ring FKM (standard) |
| Operating Temperature Range (seal) | +20°F ~ +400°F |