The Series 324 is designed with two-way shut-off and is switchable with nipples without a valve in the Series 321. The series' small external dimensions make it suitable for a wide range of fluid applications such as water inlets and returns. The clutch is one-handed operated and comes complete with dust cover. Technical data Nominal flow diameter: 6.2 mm (1/4") Water flow (double shut-off) (l/min): 42 l/min (11.1GPM us) Max. working pressure: 35 bar (510 PSI) Min. burst pressure: 140 bar (2030 PSI) Temperature range: -30°C — +100°C (-22°F — +212°F) Material Clutch: Nickel-plated brass Nipple material: Nickel-plated brass Kv (single shut-off): 1.59 CV (double shut-off): 1.46 The flow capacity is measured at a pressure drop of 4 bar.