Hygienic Union Parts GC Supplies UK Ltd. carry a large stock of union parts available for immediate despatch. Listed below are the five most common within the UK market. There are other variations not listed such as ACME that have to be specially ordered. Please enquire if you cannot see the type you require or are unsure and need verification. | 
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RJT (Ring Joint Type) | | This is probably the most common union used in the UK. | | The complete union comprises of a Nut, a Male part, a Liner and a Seal. | | The Nut is usually hexagonal and the Liner usually pressed. |
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Pressed Blanks, Blank Caps and Chains, Spanners, Hose Liners and Adaptors are also stock items. ILC (In Line Clean) is also available ex-stock. Available size range: 1" up to 6" Available seals: Nitrile, EPDM, Viton and PTFE. |
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Clamp | | This is the most common union used in the Pharmaceutical industry. | | The complete union comprises of two Ferrules, a Clamp and a Seal. | | Blanks and Adaptors are also stock items. |
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Available size range: | BS4825: ½"O/D up to 12"O/D | | DIN: DIN10 up to DIN300 | SMS: NS10 to NS101.6 |
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Available Clamps: Single Hinge, Double Hinge and High Pressure (bolt together). Available seals: Lipped and Non-Lipped styles in EPDM, Silicone (Translucent), PTFE and PTFE/Viton Envelope type. White Silicone, Viton and Nitrile are available on special order. |
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SMS (Swedish Metric Standard) | | This union is fairly common in the UK, probably second only to RJT. It has good hygienic properties and provides a robust joint. | | The complete union comprises of a Male part, a Liner, a Nut and a Seal. |
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The Nut is usually round with 6 slots. Blanks, Adaptors and C-Spanners are also stock items. Available size range: 1" up to 4" Available seals: EPDM, Viton and Nitrile. |
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DIN (DIN Standard) | | Used extensively on the continent, mainly in and around Germany, this union can be found being used in the UK on imported machinery and equipment. It is probably the least popular union held in our stocks, yet it provides a robust and reliable joint. | | The union comprises of a Male part, a Liner, a Nut and a Seal. |
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The Nut is usually round with 4 slots (size 10 to 50) or 6 slots (size 65 to 150) and the Male part interlocks with the Liner. Blanks, Adaptors and C-Spanners are also available from stock. Available size range: NW10 up to NW150 Available seals: Nitrile (Perbunan), Viton, Silicone (Translucent), EPDM and PTFE. |
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IDF | | Though not as common as RJT, IDF can be found being used extensively within the UK, mainly within the Dairy related industry. | | The union comprises of a Male part, a Liner, a Nut and a Seal. |
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The Nut is usually hexagonal. Blanks, Adaptors and Spanners are also available from stock. Available size range: 1" up to 4" Available seals: Nitrile, Viton and EPDM. |
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