Can the DN12 Quick-Connect Socket, Double Shut-Off, Hose End, Nickel-Plated Brass, 57KB Series handle both air and water at the stated pressures and flow rates safely?

Yes. The DN12 Quick-Connect Socket, Double Shut-Off, Hose End, Nickel-Plated Brass, 57KB Series is specified and constructed to handle both air and water safely at the stated pressures and flow rates when used within its published limits. Key points supporting safe use: - Working pressure: up to 35 bar, which exceeds the given operating points (air at Pe=6 bar; water pressure differentials used for Kv measurements), so the component is rated for those pressures. - Flow performance: specified flow capacities are 3300 l/min (air, Pe=6 bar, Δp=0.5 bar) and 4700 l/min (air, Kv=5.5), and 73.5–91.7 l/min for water depending on mating plug — these values are provided by the manufacturer and reflect expected performance. - Materials and sealing: nickel-plated brass body, nickel-plated steel sleeve, stainless steel internal parts and NBR seals provide corrosion and wear resistance and reliable tightness for typical industrial air and water applications. - Temperature range: −20°C to +100°C supports common operating environments for both media. - Configuration: double shut-off and compatibility with appropriate plugs (57KB/57SB or 57KB/57SF) allow unidirectional or bidirectional shut-off as required for safe operation. Recommendations for safe use: operate within rated pressure and temperature limits, use the correct mating plug (57KB/57SB or 57KB/57SF) to achieve the stated Kv/flow, ensure proper installation and maintenance, and verify media compatibility with NBR seals. If applications involve contaminants, aggressive chemicals, or pressures/temperatures beyond ratings, consult the manufacturer or choose a coupling with suitable materials.

Does the DN12 Quick-Connect Socket, Double Shut-Off, Hose End, Nickel-Plated Brass, 57KB Series require specific plugs or configurations to achieve the stated Kv and flow rates for air and water?

DN12 Quick-Connect Socket, Double Shut-Off, Hose End, Nickel-Plated Brass, 57KB Series does require specific plugs/configurations to achieve the stated Kv and flow rates. The quoted performance figures are dependent on the mating plug type: - With 57KB/57SB plug: Kv = 4.4, water flow ≈ 73.5 l/min at Δp = 1 bar; air flow ≈ 3300 l/min at Pe = 6 bar, Δp = 0.5 bar. - With 57KB/57SF plug: Kv = 5.5, water flow ≈ 91.7 l/min at Δp = 1 bar; air flow up to ≈ 4700 l/min. Additionally, the coupling’s shut-off behavior (unidirectional vs. bidirectional) depends on the chosen plug configuration. Use the specified mating plugs to reproduce the stated flow and Kv values.

DN12 Quick-Connect Socket, Double Shut-Off, Hose End, Nickel-Plated Brass, 57KB Series

All products, General-purpose low-pressure quick couplings/

Additional information

Material	B – brass (bronze)

The quick coupling socket DN12 with hose end from the 57 KB series is a high-performance solution designed for efficient transfer of both liquids and gases. Engineered for demanding applications, it offers a working pressure of up to 35 bar and ensures impressive flow rates: 3300 l/min for air at Pe=6 bar with Δp=0.5 bar, 73.5 l/min for water at Δp=1 bar with Kv=4.4 when paired with 57KB/57SB, and up to 4700 l/min for air or 91.7 l/min for water with Kv=5.5 when connected to 57KB/57SF. Depending on the plug used, the coupling can be configured for unidirectional or bidirectional shut-off, providing maximum flexibility in operation. Built from premium materials such as nickel-plated brass for the body, nickel-plated steel for the locking sleeve, and stainless steel for the spring, ring, and locking balls, it guarantees durability and resistance to wear. The NBR sealing ensures reliable tightness, while the operating temperature range from -20°C to +100°C makes it suitable for a wide variety of industrial environments. This robust and versatile coupling socket is the ideal choice for professionals seeking efficiency, safety, and long-lasting performance in fluid and gas handling systems.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]	Enquiry
RE-57KBTF16BPN	Quick coupling socket 57KB DN12, with valve, for 16 mm hose, nickel-plated brass, NBR	16	35
RE-57KBTF19BPN	Quick coupling socket 57KB DN12, with valve, for 19 mm hose, nickel-plated brass, NBR	20	35

The quick coupling socket DN12 with hose end from the 57 KB series is a high-performance solution designed for efficient transfer of both liquids and gases. Engineered for demanding applications, it offers a working pressure of up to 35 bar and ensures impressive flow rates: 3300 l/min for air at Pe=6 bar with Δp=0.5 bar, 73.5 l/min for water at Δp=1 bar with Kv=4.4 when paired with 57KB/57SB, and up to 4700 l/min for air or 91.7 l/min for water with Kv=5.5 when connected to 57KB/57SF. Depending on the plug used, the coupling can be configured for unidirectional or bidirectional shut-off, providing maximum flexibility in operation. Built from premium materials such as nickel-plated brass for the body, nickel-plated steel for the locking sleeve, and stainless steel for the spring, ring, and locking balls, it guarantees durability and resistance to wear. The NBR sealing ensures reliable tightness, while the operating temperature range from -20°C to +100°C makes it suitable for a wide variety of industrial environments. This robust and versatile coupling socket is the ideal choice for professionals seeking efficiency, safety, and long-lasting performance in fluid and gas handling systems.