Hygienic Pump Connections
An Overview of Hygienic Pump Connections Available on Pumps
Pumps can be fitted with a variety of different socketed pipework connections with different features and hygiene ratings. The below overview aims to cover some of the differences between the various types of connections available on pumps as although certain types of fitting may be hygienic they are not cleaning in place friendly meaning to maintain an effective hygiene program, the pump must be frequently dissassembled and cleaned manually:
Image of Fitting | Fitting Type | Description |
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DIN11851 Union | This type of fitting is used extensively in Europe and the middle east within Dairies, food, pharmaceutical and chemical plants. Used in conjunction with a union to seal it is used with a flush lipped D shaped seal. Due to the crevice between the faces this joint is not suitable for CIP. |
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BSP- Male | Fittings can be Parallel or tapered. A thread which is parallel requiring a seal ring to seal. Care must be taken to ensure product does not come into contact and remain in threads. Clamp on fittings without threads are more hygienic and less likely to allow dead zones. Not CIP Friendly. |
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BSP-Female |
An internally threaded connection designed to accommodate a male BSP thread. Threads can be Parallel requiring a sealing ring to seal, or tapered. C are is required to ensure product does not come into contact and remain in the threads. Clamp on fittings without threads are more hygienic and less likely to allow dead zones. Not CIP Friendly. |
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Macon | A joint which links a Male Coupling with a female coupling via a sealing gasket. A nut links both couplings. Suitable for CIP |
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Triclover / Triclamp
| Couplings are joined via a clamp compressing and retaining the joint allowing disassembly without tools. The triclover fitting contains grooves to accommodate a seal. This seal offers a very high level of hygiene as well as unrestricted flow. Suitable for CIP |
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SMS |
SMS is a Swedish standard of threaded coupling used within the Dairy and Food industries. It features a flat sealing face allowing easy disassembly. Couplings can be male, female or utilize slotted nuts for sealing. CIP Suitable |
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BSM (RJT) |
RJT Connections consist of a threaded coupling, containing at Whitworth imperial threaded used historically in UK Dairy and Food plants. These types of connections are not suitable for CIP (Cleaning in Place) |
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Friederich |
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