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Clamp Unions

supplies high-quality Tri Clamp unions — also known as Triclamp or clamp unions — made from 316L stainless steel to BS 4825 Part 3 and compatible with ASME BPE and ISO standards. These hygienic fittings are widely used in food, dairy, brewery, beverage, pharmaceutical, and biotech processing systems.

Tri Clamp unions are designed for:

  • Tool-free, quick assembly and disassembly

  • CIP/SIP compatibility for clean and steam-in-place systems

  • Secure sealing with a clamp, ferrules, and a hygienic gasket

A standard Tri Clamp union consists of:

  • 2 x ferrules (weld or plain end)

  • 1 x clamp (single hinge or double bolt)

  • 1 x gasket (available in EPDM, silicone, Viton, or PTFE)

These fittings are ideal for systems that require frequent cleaning, maintenance, or reconfiguration. Available in imperial sizes from 1” to 4” OD, with all components fully traceable and stocked for rapid UK-wide delivery from .

0.50" & 0.75" OD (1/2" & 3/4" OD) HIGH PRESSURE TRI CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Double Bolted High Pressure Construction
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£ 15.30 per item 15.3 GBP
0.50" (1/2" NB) CLAMP UNION WELD FERRULE SS 316 (21.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 1/2" Universal Clamp Union
Material: Stainless 316
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£ 9.06 per item 9.06 GBP
0.50" OD CLAMP UNION BLANK SS 316
Suits a 1/2" Universal Clamp Union
Material: Stainless 316
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£ 2.25 per item 2.25 GBP
0.50" OD CLAMP UNION BLUE EPDM UN-LIPPED SEAL (CLAMP PART 3 OF 3)
Suits a 1/2" Universal Clamp Union
Material: EPDM
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£ 0.15 per item 0.15 GBP
0.50" OD CLAMP UNION GREEN VITON O RING (CLAMP PART 3 OF 3)
Suits a 1/2" Universal Clamp Union
Material: Viton
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£ 4.62 per item 4.62 GBP
0.50" OD CLAMP UNION WELD FERRULE SS 316 (21.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 1/2" Universal Clamp Union
Material: Stainless 316
See more
£ 2.49 per item 2.49 GBP
0.50" OD CLAMP UNION WELD FERRULE SS 316 (28MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 1/2" Universal Clamp Union
Material: Stainless 316
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£ 11.25 per item 11.25 GBP
0.50" OD CLAMP UNION WELD FERRULE SS 316 (44.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 1/2" Universal Clamp Union
Material: Stainless 316
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£ 23.13 per item 23.13 GBP
0.50" OD CLAMP UNION WHITE PTFE O RING (CLAMP PART 3 OF 3)
Suits a 1/2" Universal Clamp Union
Material: PTFE
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£ 5.04 per item 5.04 GBP
0.50" OD (1/2" OD) HEAVY DUTY TRI CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Heavy Duty Construction
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£ 4.68 per item 4.68 GBP
0.75" OD CLAMP UNION BLANK SS 316
Suits a 3/4" Universal Clamp Union
Material: Stainless 316
See more
£ 2.97 per item 2.97 GBP
0.75" OD CLAMP UNION BLUE EPDM O RING (CLAMP PART 3 OF 3)
Suits a 3/4" Universal Clamp Union
Material: EPDM
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£ 0.15 per item 0.15 GBP
0.75" OD CLAMP UNION GREEN VITON O RING (CLAMP PART 3 OF 3)
Suits a 3/4" Universal Clamp Union
Material: Viton
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£ 6.78 per item 6.78 GBP
0.75" OD CLAMP UNION WELD FERRULE SS 316 (21.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 3/4" Universal Clamp Union
Material: Stainless 316
See more
£ 2.34 per item 2.34 GBP
0.75" OD CLAMP UNION WELD FERRULE SS 316 (28MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 3/4" Universal Clamp Union
Material: Stainless 316
See more
£ 11.85 per item 11.85 GBP
0.75" OD CLAMP UNION WELD FERRULE SS 316 (44.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 3/4" Universal Clamp Union
Material: Stainless 316
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£ 23.70 per item 23.7 GBP
0.75" OD CLAMP UNION WHITE PTFE O RING (CLAMP PART 3 OF 3)
Suits a 3/4" Universal Clamp Union
Material: PTFE
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£ 5.04 per item 5.04 GBP
0.75" OD (3/4" OD) HEAVY DUTY TRI CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Heavy Duty Construction
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£ 3.99 per item 3.99 GBP
1" & 1.50" OD HEAVY DUTY TRI CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Heavy Duty Construction
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£ 7.17 per item 7.17 GBP
1.00" & 1.50" OD CLAMP UNION BLANK SS 316
Suits a 1" or 1.1/2" Universal Clamp Union
Material: Stainless 316
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£ 4.02 per item 4.02 GBP
1.00" OD CLAMP UNION BLUE EPDM O RING (CLAMP PART 3 OF 3)
Suits a 1" Universal Clamp Union
Material: EPDM
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£ 0.48 per item 0.48 GBP
1.00" OD CLAMP UNION GREEN VITON O RING (CLAMP PART 3 OF 3)
Suits a 1" Universal Clamp Union
Material: Viton
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£ 3.12 per item 3.12 GBP
1.00" OD CLAMP UNION WELD EXPANDED FERRULE SS 316 (FOR SWAGING)
Suits a 1" Universal Clamp Union
Material: Stainless 316
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£ 7.68 per item 7.68 GBP
1.00" OD CLAMP UNION WELD FERRULE SS 316 (21.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 1" Universal Clamp Union
Material: Stainless 316
See more
£ 3.48 per item 3.48 GBP
1.00" OD CLAMP UNION WELD FERRULE SS 316 (28MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 1" Universal Clamp Union
Material: Stainless 316
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£ 9.06 per item 9.06 GBP
1.00" OD CLAMP UNION WELD FERRULE SS 316 (44.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 1" Universal Clamp Union
Material: Stainless 316
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£ 28.44 per item 28.44 GBP
1.00" OD CLAMP UNION WHITE PTFE O RING (CLAMP PART 3 OF 3)
Suits a 1" Universal Clamp Union
Material: PTFE
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£ 5.64 per item 5.64 GBP
1.00" OD HIGH PRESSURE TRI CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Double Bolted High Pressure Construction
See more
£ 15.60 per item 15.6 GBP
1.50" OD CLAMP UNION BLACK EPDM O RING (CLAMP PART 3 OF 3)
Suits a 1.1/2" Universal Clamp Union
Material: EPDM
See more
£ 0.48 per item 0.48 GBP
1.50" OD CLAMP UNION GREEN VITON O RING (CLAMP PART 3 OF 3)
Suits a 1.1/2" Universal Clamp Union
Material: Viton
See more
£ 6.48 per item 6.48 GBP
1.50" OD CLAMP UNION WELD FERRULE SS 316 (21.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 1.1/2" Universal Clamp Union
Material: Stainless 316
See more
£ 3.12 per item 3.12 GBP
1.50" OD CLAMP UNION WELD FERRULE SS 316 (28MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 1.1/2" Universal Clamp Union
Material: Stainless 316
See more
£ 9.99 per item 9.99 GBP
1.50" OD CLAMP UNION WELD FERRULE SS 316 (44.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 1.1/2" Universal Clamp Union
Material: Stainless 316
See more
£ 30.84 per item 30.84 GBP
1.50" OD CLAMP UNION WHITE PTFE O RING (CLAMP PART 3 OF 3)
Suits a 1.1/2" Universal Clamp Union
Material: PTFE
See more
£ 5.94 per item 5.94 GBP
1.50" OD HIGH PRESSURE TRI CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Double Bolted High Pressure Construction
See more
£ 19.35 per item 19.35 GBP
2.00" OD CLAMP BLACK EPDM O RING (CLAMP PART 3 OF 3)
Suits a 2" Universal Clamp Union
Material: EPDM
See more
£ 0.48 per item 0.48 GBP
2.00" OD CLAMP BLACK METAL DETECTABLE EPDM O RING (CLAMP PART 3 OF 3)
Suits a 2" Universal Clamp Union
Material: EPDM (Metal Detectable)
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£ 5.46 per item 5.46 GBP
2.00" OD CLAMP BLUE METAL DETECTABLE EPDM O RING (CLAMP PART 3 OF 3)
Suits a 2" Universal Clamp Union
Material: EPDM (Metal Detectable)
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£ 9.21 per item 9.21 GBP
2.00" OD CLAMP GREEN VITON O RING (CLAMP PART 3 OF 3)
Suits a 2" Universal Clamp Union
Material: Viton
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£ 7.83 per item 7.83 GBP
2.00" OD CLAMP GREEN VITON O RING TO SUIT NON RETURN VALVE
Suits a 2" Tri-Clamp Non Return Valve
Material: Viton
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£ 27.00 per item 27.0 GBP
2.00" OD CLAMP UNION BLANK SS 316
Suits a 2" Universal Clamp Union
Material: Stainless 316
See more
£ 2.16 per item 2.16 GBP
2.00" OD CLAMP UNION FERRULE SS 316 (21.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 2" Universal Clamp Union
Material: Stainless 316
See more
£ 2.70 per item 2.7 GBP
2.00" OD CLAMP UNION FERRULE SS 316 (28MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 2" Universal Clamp Union
Material: Stainless 316
See more
£ 11.85 per item 11.85 GBP
2.00" OD CLAMP UNION FERRULE SS 316 (44.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 2" Universal Clamp Union
Material: Stainless 316
See more
£ 33.78 per item 33.78 GBP
2.00" OD CLAMP WHITE PTFE O RING (CLAMP PART 3 OF 3)
Suits a 2" Universal Clamp Union
Material: PTFE
See more
£ 6.51 per item 6.51 GBP
2.00" OD HEAVY DUTY TRI CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Heavy Duty Construction
See more
£ 6.54 per item 6.54 GBP
2.00" OD HIGH PRESSURE TRI CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Double Bolted High Pressure Construction
See more
£ 29.31 per item 29.31 GBP
2.50" OD CLAMP BLACK O RING (CLAMP PART 3 OF 3)
Suits a 2.1/2" Universal Clamp Union
Material: EPDM
See more
£ 1.08 per item 1.08 GBP
2.50" OD CLAMP GREEN VITON O RING (CLAMP PART 3 OF 3)
Suits a 2.1/2" Universal Clamp Union
Material: Viton
See more
£ 5.61 per item 5.61 GBP
2.50" OD CLAMP UNION BLANK SS 316
Suits a 2.1/2" Universal Clamp Union
Material: Stainless 316
See more
£ 7.02 per item 7.02 GBP
2.50" OD CLAMP UNION WELD FERRULE SS 316 (21.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 2.1/2" Universal Clamp Union
Material: Stainless 316
See more
£ 5.31 per item 5.31 GBP
2.50" OD CLAMP UNION WELD FERRULE SS 316 (28MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 2.1/2" Universal Clamp Union
Material: Stainless 316
See more
£ 14.34 per item 14.34 GBP
2.50" OD CLAMP UNION WELD FERRULE SS 316 (44.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 2.1/2" Universal Clamp Union
Material: Stainless 316
See more
£ 35.58 per item 35.58 GBP
2.50" OD CLAMP WHITE PTFE O RING (CLAMP PART 3 OF 3)
Suits a 2.1/2" Universal Clamp Union
Material: PTFE
See more
£ 8.31 per item 8.31 GBP
2.50" OD HEAVY DUTY TRI CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Heavy Duty Construction
See more
£ 8.58 per item 8.58 GBP
2.50" OD HIGH PRESSURE TRI CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Double Bolted High Pressure Construction
See more
£ 20.76 per item 20.76 GBP
3.00" NB HEAVY DUTY TRI UNION CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Heavy Duty Construction
See more
£ 33.78 per item 33.78 GBP
3.00" NB SCH10 CLAMP UNION WELD FERRULE SS 316 (21.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 3" Universal Clamp Union
Material: Stainless 316
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£ 26.67 per item 26.67 GBP
3.00" OD CLAMP BLACK EPDM O RING (CLAMP PART 3 OF 3)
Suits a 3" Universal Clamp Union
Material: EPDM
See more
£ 0.72 per item 0.72 GBP
3.00" OD CLAMP BLACK METAL DETECTABLE EPDM O RING (CLAMP PART 3 OF 3)
Suits a 3" Universal Clamp Union
Material: EPDM (Metal Detectable)
See more
£ 6.87 per item 6.87 GBP
3.00" OD CLAMP BLUE EPDM O RING (CLAMP PART 3 OF 3)
Suits a 3" Universal Clamp Union
Material: EPDM
See more
£ 1.08 per item 1.08 GBP
3.00" OD CLAMP BLUE METAL DETECTABLE EPDM O RING (CLAMP PART 3 OF 3)
Suits a 3" Universal Clamp Union
Material: EPDM (Metal Detectable)
See more
£ 15.06 per item 15.06 GBP
3.00" OD CLAMP GREEN VITON O RING (CLAMP PART 3 OF 3)
Suits a 3" Universal Clamp Union
Material: Viton
See more
£ 10.08 per item 10.08 GBP
3.00" OD CLAMP UNION BLANK SS 316
Suits a 3" Universal Clamp Union
Material: Stainless 316
See more
£ 11.40 per item 11.4 GBP
3.00" OD CLAMP UNION WELD FERRULE SS 316 (21.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 3" Universal Clamp Union
Material: Stainless 316
See more
£ 5.61 per item 5.61 GBP
3.00" OD CLAMP UNION WELD FERRULE SS 316 (28MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 3" Universal Clamp Union
Material: Stainless 316
See more
£ 15.90 per item 15.9 GBP
3.00" OD CLAMP UNION WELD FERRULE SS 316 (44.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 3" Universal Clamp Union
Material: Stainless 316
See more
£ 46.80 per item 46.8 GBP
3.00" OD CLAMP WHITE PTFE O RING (CLAMP PART 3 OF 3)
Suits a 3" Universal Clamp Union
Material: PTFE
See more
£ 9.48 per item 9.48 GBP
3.00" OD HEAVY DUTY TRI UNION CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Heavy Duty Construction
See more
£ 8.73 per item 8.73 GBP
3.00" OD HIGH PRESSURE TRI UNION CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Double Bolted High Pressure Construction
See more
£ 22.05 per item 22.05 GBP
3/4" NB/26.9MM CLAMP UNION WELD FERRULE SS 316 (21.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits 26.9mm
Material: Stainless 316
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£ 9.06 per item 9.06 GBP
4" OD CLAMP UNION BLANK SS 316
Suits a 4" Universal Clamp Union
Material: Stainless 316
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£ 13.80 per item 13.8 GBP
4" OD CLAMP UNION FERRULE SS 316 (21.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 4" Universal Clamp Union
Material: Stainless 316
See more
£ 6.87 per item 6.87 GBP
4" OD CLAMP UNION FERRULE SS 316 (28MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 4" Universal Clamp Union
Material: Stainless 316
See more
£ 21.21 per item 21.21 GBP
4" OD CLAMP UNION FERRULE SS 316 (44.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 4" Universal Clamp Union
Material: Stainless 316
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£ 62.25 per item 62.25 GBP
4.00" OD CLAMP BLUE EPDM O RING (CLAMP PART 3 OF 3)
Suits a 4" Universal Clamp Union
Material: EPDM
See more
£ 0.93 per item 0.93 GBP
4.00" OD CLAMP GREEN VITON O RING (CLAMP PART 3 OF 3)
Suits a 4" Universal Clamp Union
Material: Viton
See more
£ 11.94 per item 11.94 GBP
4.00" OD CLAMP WHITE PTFE O RING (CLAMP PART 3 OF 3)
Suits a 4" Universal Clamp Union
Material: PTFE
See more
£ 14.22 per item 14.22 GBP
4.00" OD OD HEAVY DUTY TRI UNION CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Heavy Duty Construction
See more
£ 9.99 per item 9.99 GBP
4.00" OD OD HIGH PRESSURE TRI UNION CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Double Bolted High Pressure Construction
See more
£ 32.01 per item 32.01 GBP
5.00" METRIC (DN125) HEAVY DUTY TRI CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Heavy Duty Construction
See more
Contact us for pricing 0.0 GBP
£ 103.80 per item 103.8 GBP
6" NB CLAMP UNION BLUE EPDM O RING (CLAMP PART 3 OF 3)
Suits a 6" NB Universal Clamp Union
Material: EPDM
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£ 17.61 per item 17.61 GBP
6" OD CLAMP UNION BLUE EPDM O RING (CLAMP PART 3 OF 3)
Suits a 6" Universal Clamp Union
Material: EPDM
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£ 1.26 per item 1.26 GBP
6" OD CLAMP UNION GREEN VITON O RING (CLAMP PART 3 OF 3)
Suits a 6" Universal Clamp Union
Material: Viton
See more
£ 30.84 per item 30.84 GBP
6" OD CLAMP UNION WHITE PTFE O RING (CLAMP PART 3 OF 3)
Suits a 6" Universal Clamp Union
Material: PTFE
See more
£ 65.22 per item 65.22 GBP
6.00" METRIC (DN154) HEAVY DUTY TRI CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Double Bolted High Pressure Construction
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£ 28.08 per item 28.08 GBP
6.00" METRIC (DN154) HEAVY DUTY TRI CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
Stainless 304
Heavy Duty Construction
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£ 27.00 per item 27.0 GBP
6.00" NB (DN150 6.5/8" / 168.1MM) HEAVY DUTY TRI CLAMP SS 304 (TRI-CLAMP PART 2 OF 3)
TO SUIT NB PIPE
Stainless 304
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£ 158.46 per item 158.46 GBP
DN10 CLAMP UNION BLUE EPDM O RING (CLAMP PART 3 OF 3)
Suits a DN10 Universal Clamp Union
Material: EPDM
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£ 3.27 per item 3.27 GBP
DN10 CLAMP UNION WELD FERRULE SS 316/L (21.5MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a DN10 Universal Clamp Union
Material: Stainless 316
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£ 19.56 per item 19.56 GBP
DN125 (5" OD) CLAMP UNION FERRULE SS 316 (28MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 5" Universal Clamp Union
Material: Stainless 316
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£ 30.90 per item 30.9 GBP
DN129 (5" OD) CLAMP UNION BLANK SS 316
Suits a 5" Universal Clamp Union
Material: Stainless 316
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£ 65.22 per item 65.22 GBP
DN15 CLAMP UNION BLUE EPDM O RING (CLAMP PART 3 OF 3)
Suits a DN15 Universal Clamp Union
Material: EPDM
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£ 1.59 per item 1.59 GBP
DN154 (6" OD) CLAMP UNION BLANK SS 316
Suits a 6" Universal Clamp Union
Material: Stainless 316
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£ 43.02 per item 43.02 GBP
DN154 (6" OD) CLAMP UNION FERRULE SS 316 (28MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 6" Universal Clamp Union
Material: Stainless 316
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£ 27.45 per item 27.45 GBP
DN204 (8" OD) CLAMP UNION BLANK SS 316
Suits a 8" Universal Clamp Union
Material: Stainless 316
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£ 124.50 per item 124.5 GBP
DN204 (8" OD) CLAMP UNION FERRULE SS 316 (28MM LONG) (CLAMP UNION PART 1 OF 3)
Suits a 8" Universal Clamp Union
Material: Stainless 316
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£ 45.24 per item 45.24 GBP
DN25 CLAMP UNION BLUE EPDM O RING (CLAMP PART 3 OF 3)
Suits a DN10 Universal Clamp Union
Material: EPDM
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£ 3.57 per item 3.57 GBP
DN254 (10" OD) CLAMP UNION BLANK SS 316
Suits a 10" Universal Clamp Union
Material: Stainless 316
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£ 170.04 per item 170.04 GBP