Quick Disconnect Selection Guide

Snap Type Quick Disconnects

Are you looking for connectors that will permit one hand disconnections and prevent fluid flow from escaping? If you are your search ends right here. Beswick has a variety of single and double shut-off assemblies to select from. The snap type product line of quick disconnects can be easily connected and disconnected. To connect, simply push the two halves together and to disconnect, slide the knurled sleeve back towards the internal side of the fitting. All of the quick disconnects will need an internal (female) and external (male) end to function properly. The connectors are all available in 303 stainless steel and most models available in brass and 316 stainless steel. To help in your selection a number of factors must be considered. Once you have narrowed down your requirements you can find our selection of quick disconnect fittings at:

Beswick Engineering Quick Disconnects

Shut Off Configurations

Single Shut-off

Products: QDC-101-I | QM3I | QHI

The single shut-off connectors have only one shut-off which is located in the internal side of the fitting. The external pin that is used in the connection, is bored straight through, and will not stop flow when the two halves are disconnected.

Double Shut-off

Products: QDC-101-I-DS | QHI-DS

The double shut-off connectors have shut-off valves in both the internal and external ends. The shut-offs prevent fluid from leaking out of either end when the assembly is disconnected.

Dry Break

Products: QDI | QDM3I | QDI3L

The dry break quick disconnect functions similar to a double shut-off quick disconnect however the design minimizes dead volume (the space between the internal and external ends when connected) to essentially eliminate any leakage when disconnecting. It provides a higher level of sealing during connection and disconnection and eliminates the minimal amount of leakage the instant you make the disconnection. A shut-off valve is located in both sides of the connector.

Multi-Line Configurations

Products: QDCML Single Shut Off | QDCML Double Shut Off

Disconnecting multiple lines is also a possibility with Beswick’s multiple line quick disconnects. The design incorporates a keyed location pin to insure correct orientation of the fluid lines during connection. The disconnect also features a releasing sleeve that permits one-hand connecting or disconnecting of several fluid lines simultaneously.  Assemblies are available in four, six and eight line configurations. The internal end is designed with an automatic shut-off valve and it is also available in double shut off configurations.

High Flow Configurations

Products: QH1I | QH1I-DS | QDI3L

Beswick also manufactures high flow quick disconnects for applications requiring higher flow rates. The equivalent flow path of the QH1I is about 0.125″ (3.2 mm) compared to the 0.050″ (1.3 mm) equivalent flow path of the QDC-101 standard assembly.  The QD3L dry break quick disconnects are suitable for even higher flow rates providing an equivalent flow path of about 0.180″ (4.6 mm).

High Pressure Configurations

Products: QBI | QBI-DB

Beswick manufactures a high pressure bayonet quick connect for applications involving pressures up to 3,000 psig. The QB series is available with both a single and double shut off dry break configurations. The assembly connects and disconnects with a quarter turn of the releasing sleeve, similar to an electrical connector.

Please note, most pressure ratings for quick disconnects are up to 500 psig while connected. Beswick Engineering does NOT recommend connecting or disconnecting QDCs at pressures above 200 psig.

Screw Type Quick Disconnects

Products: QDC-F

Beswick’s screw type quick disconnects are a good choice when connections are infrequent. The connectors are economical and do facilitate easy component replacement. The screw type quick disconnect has a shut-off in the external (male) end of the fitting.