Is the Quick Connector DN12, Double Shut-Off, Hose End, Nickel-Plated Brass, Series 57KB compatible with both air (up to 35 bar) and water applications?

Yes. The Quick Connector DN12, Double Shut-Off, Hose End, Nickel-Plated Brass, Series 57KB is compatible with both air and water applications. It is designed for liquid and gas use, rated for working pressures up to 35 bar. Flow performance: 3300 l/min for air at Pe = 6 bar (Δp = 0.5 bar) and 73.5 l/min for water at Δp = 1 bar (Kv = 4.4). Construction—nickel-plated brass body with NBR sealing—and an operating temperature range of −20°C to +100°C provide durable, leak-free service in demanding industrial environments.

Can the Quick Connector DN12, Double Shut-Off, Hose End, Nickel-Plated Brass, Series 57KB maintain leak-free performance across the full operating temperature range (-20°C to +100°C) for both air and water?

Yes. The Quick Connector DN12, Double Shut-Off, Hose End, Nickel-Plated Brass, Series 57KB is specified with NBR sealing and an operating temperature range of -20°C to +100°C, and is engineered for both liquid and gas service (air and water). Its materials (nickel-plated brass body) and NBR seal are compatible with that temperature band and the stated media, supporting reliable, leak-free performance across the full range under normal operating conditions. The coupling is also rated to withstand working pressures up to 35 bar and provides the quoted flow capacities (3300 l/min air at Pe=6 bar, Δp=0.5 bar; 73.5 l/min water at Δp=1 bar, Kv=4.4), which further indicates suitability for intended applications. Note: Actual field performance can be affected by application-specific factors (chemical compatibility, pressure/temperature transients, seal age, installation quality). For critical or atypical conditions, validate with manufacturer guidance or testing.

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

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

Additional information

Material	B – brass (bronze)
Standard length [m]	10

The DN12 quick coupling plug with integrated valve from the 57 KB series is designed to ensure reliable and efficient connections for both liquid and gas applications. Engineered for demanding environments, it withstands working pressures up to 35 bar while delivering an impressive flow capacity of 3300 l/min for air at Pe=6 bar with Δp=0.5 bar, and 73.5 l/min for water at Δp=1 bar with a Kv value of 4.4. Manufactured from durable nickel-plated brass, it guarantees long-lasting resistance to wear and corrosion, while the NBR sealing ensures secure and leak-free performance. With an operating temperature range from -20°C to +100°C, this coupling plug is perfectly suited for versatile industrial use, offering high flow efficiency, robust construction, and dependable sealing technology for maximum productivity and safety in demanding fluid handling systems.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
RE-57SBTF13MPN	Quick coupling plug 57SB DN12, with valve, for 13 mm hose, nickel-plated brass, NBR	12	35
RE-57SBTF16MPN	Quick coupling plug 57SB DN12, with valve, for 16 mm hose, nickel-plated brass, NBR	16	35
RE-57SBTF19MPN	Quick coupling plug 57SB DN12, with valve, for hose 19 mm, nickel-plated brass, NBR	20	35

The DN12 quick coupling plug with integrated valve from the 57 KB series is designed to ensure reliable and efficient connections for both liquid and gas applications. Engineered for demanding environments, it withstands working pressures up to 35 bar while delivering an impressive flow capacity of 3300 l/min for air at Pe=6 bar with Δp=0.5 bar, and 73.5 l/min for water at Δp=1 bar with a Kv value of 4.4. Manufactured from durable nickel-plated brass, it guarantees long-lasting resistance to wear and corrosion, while the NBR sealing ensures secure and leak-free performance. With an operating temperature range from -20°C to +100°C, this coupling plug is perfectly suited for versatile industrial use, offering high flow efficiency, robust construction, and dependable sealing technology for maximum productivity and safety in demanding fluid handling systems.