The universal adoption of Camlock couplings is largely thanks to their standardized typing system. This system ensures that couplings from different manufacturers can interoperate seamlessly. Understanding these Camlock coupling types is the most critical step in building a safe and functional fluid transfer system.
Introduction to Camlock Coupling Types
Camlock types are identified by letters (A, B, C, D, E, F, M, DP). Each type defines a specific function and connection style. The most basic and essential rule to remember is: Type A (Male) always connects to Type B (Female). All other types are variations designed to connect to different equipment.
The Complete Breakdown of Camlock Coupling Types
Here is a detailed guide to each standard Camlock adapter type:
Type A – Male Adapter
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Description: This is the standard “plug” or male end. It features two lugs and a built-in O-ring for sealing.
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Connects To: Type B (Female Coupler).
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Primary Use: The male half of a standard hose-to-hose connection.
Type B – Female Coupler
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Description: This is the standard “socket” or female end. It has a grooved body and a rotating collar with cam arms.
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Connects To: Type A (Male Adapter).
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Primary Use: The female half of a standard hose-to-hose connection.
Type C – Female Threaded Adapter
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Description: This is a Male Adapter (like Type A) but with female NPT threads on its tail end.
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Connects To: Type B (Female Coupler).
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Primary Use: To connect a female-threaded pipe or hose fitting to a Type B coupler.
Type D – Male Threaded Adapter
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Description: This is a Female Coupler (like Type B) but with male NPT threads on its tail end.
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Connects To: Type A (Male Adapter).
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Primary Use: To connect a male-threaded pipe or hose fitting to a Type A adapter.
Type E – Female Threaded Coupler
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Description: This is a less common type that functions as a female coupler with female NPT threads.
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Connects To: Type A (Male Adapter).
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Primary Use: A specialized adapter for specific plumbing configurations.
Type F – Male Threaded Coupler
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Description: This is a less common type that functions as a male adapter with male NPT threads.
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Connects To: Type B (Female Coupler).
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Primary Use: A specialized adapter for specific plumbing configurations.
Type M – Blanking Plug
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Description: A solid plug with a groove, designed to seal an unused female coupler.
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Connects To: Type B (Female Coupler).
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Primary Use: Safety and contamination prevention by capping open ends.
Type DP – Dust Plug
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Description: A cap designed to cover and protect an unused male adapter.
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Connects To: Type A (Male Adapter).
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Primary Use: To protect the O-ring and threads of a male adapter from damage and dirt.
Camlock Coupling Type Compatibility Chart
| Your Equipment Has… | You Need This Camlock Type |
|---|---|
| A Hose End | Type A (Male) or Type B (Female) |
| Female NPT Threads | Type C (F NPT Adapter) or Type E (F NPT Coupler) |
| Male NPT Threads | Type D (M NPT Adapter) or Type F (M NPT Coupler) |
| To Cap a Female Coupler | Type M (Blanking Plug) |
| To Cap a Male Adapter | Type DP (Dust Plug) |
Still Unsure Which Camlock Type You Need? Contact our experts today for free technical support and ensure you get the right connection every time.