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Seals

Integraflow supplies a full range of SMS Seals, also known as SMS Gaskets, designed to provide a leak-tight, hygienic seal between SMS union components in stainless steel process pipelines. These gaskets are critical for ensuring hygienic integrity in systems used across food, beverage, dairy, pharmaceutical, and biotech industries.

SMS seals are fitted between the male liner and female ferrule and compressed by the union nut to create a hygienic seal that’s resistant to high pressures, cleaning cycles, and process media.

Available in multiple material options:

  • EPDM – excellent resistance to steam, water, and cleaning agents (CIP/SIP compatible)

  • Silicone – flexible and stable across a wide temperature range

  • PTFE – chemically resistant and ideal for aggressive or sticky media

  • Viton (FKM) – high temperature and chemical resistance, ideal for pharmaceutical applications

Features:

  • Compliant with SMS 1149 union dimensions

  • Sizes from DN25 (1”) to DN100 (4”)

  • Suitable for use in CIP/SIP systems

  • Options available with FDA and USP Class VI certification

  • Compatible with Integraflow’s SMS Male Parts, Ferrules, and Nuts

All seals are pressure-ratedfully batch traceable, and available for rapid UK-wide dispatch from Integraflow – your hygienic pipework specialist.

1.00" OD SMS UNION BLACK EPDM O RING (SMS PART 4 OF 4)
Suits a 1" SMS Union
Material: EPDM
Colour: Black
SMS Union: Part 4 of 4
£7.98 each
List Price – Sign in to view Trade Prices 7.98 GBP
1.00" OD SMS UNION BLACK NITRILE O RING (SMS PART 4 OF 4)
Suits a 1" SMS Union
Material: NITRILE
Colour: Black
SMS Union: Part 4 of 4
£7.98 each
List Price – Sign in to view Trade Prices 7.98 GBP
1.00" OD SMS UNION BLUE EPDM O RING (SMS PART 4 OF 4)
Suits a 1" SMS Union
Material: EPDM
Colour: BLUE
SMS Union: Part 4 of 4
£1.12 each
List Price – Sign in to view Trade Prices 1.12 GBP
1.00" OD SMS UNION GREEN VITON O RING (SMS PART 4 OF 4)
Suits a 1" SMS Union
Material: Viton
Colour: Green
SMS Union: Part 4 of 4
£5.95 each
List Price – Sign in to view Trade Prices 5.95 GBP
1.00" OD SMS UNION WHITE PTFE O RING (SMS PART 4 OF 4)
Suits a 1" SMS Union
Material: PTFE
Colour: White
SMS Union: Part 4 of 4
£23.94 each
List Price – Sign in to view Trade Prices 23.94 GBP
1.50" OD SMS UNION BLACK EPDM O RING (SMS PART 4 OF 4)
Suits a 1.1/2" SMS Union
Material: EPDM
Colour: Black
SMS Union: Part 4 of 4
£9.38 each
List Price – Sign in to view Trade Prices 9.38 GBP
1.50" OD SMS UNION BLACK NITRILE O RING (SMS PART 4 OF 4)
Suits a 1.1/2" SMS Union
Material: NITRILE
Colour: Black
SMS Union: Part 4 of 4
£11.97 each
List Price – Sign in to view Trade Prices 11.97 GBP
1.50" OD SMS UNION BLUE EPDM O RING (SMS PART 4 OF 4)
Suits a 1.1/2" SMS Union
Material: EPDM
Colour: BLUE
SMS Union: Part 4 of 4
£1.26 each
List Price – Sign in to view Trade Prices 1.26 GBP
1.50" OD SMS UNION GREEN VITON O RING (SMS PART 4 OF 4)
Suits a 1.1/2" SMS Union
Material: Viton
Colour: Green
SMS Union: Part 4 of 4
£8.05 each
List Price – Sign in to view Trade Prices 8.05 GBP
1.50" OD SMS UNION WHITE PTFE O RING (SMS PART 4 OF 4)
Suits a 1.1/2" SMS Union
Material: PTFE
Colour: White
SMS Union: Part 4 of 4
£25.27 each
List Price – Sign in to view Trade Prices 25.27 GBP
2.00" OD SMS UNION BLACK EPDM O RING (SMS PART 4 OF 4)
Suits a 2" SMS Union
Material: EPDM
Colour: Black
SMS Union: Part 4 of 4
£10.01 each
List Price – Sign in to view Trade Prices 10.01 GBP
2.00" OD SMS UNION BLACK NITRILE O RING (SMS PART 4 OF 4)
Suits a 2" SMS Union
Material: NITRILE
Colour: Black
SMS Union: Part 4 of 4
£13.16 each
List Price – Sign in to view Trade Prices 13.16 GBP
2.00" OD SMS UNION BLUE EPDM O RING (SMS PART 4 OF 4)
Suits a 2" SMS Union
Material: EPDM
Colour: BLUE
SMS Union: Part 4 of 4
£1.54 each
List Price – Sign in to view Trade Prices 1.54 GBP
2.00" OD SMS UNION GREEN VITON O RING (SMS PART 4 OF 4)
Suits a 2" SMS Union
Material: Viton
Colour: Green
SMS Union: Part 4 of 4
£10.85 each
List Price – Sign in to view Trade Prices 10.85 GBP
2.00" OD SMS UNION WHITE PTFE O RING (SMS PART 4 OF 4)
Suits a 2" SMS Union
Material: PTFE
Colour: White
SMS Union: Part 4 of 4
£34.58 each
List Price – Sign in to view Trade Prices 34.58 GBP
2.50" OD SMS BLACK EPDM O RING (SMS PART 4 OF 4)
Suits a 2.1/2" SMS Union
Material: EPDM
Colour: Black
SMS Union: Part 4 of 4
£14.63 each
List Price – Sign in to view Trade Prices 14.63 GBP
2.50" OD SMS BLACK NITRILE O RING (SMS PART 4 OF 4)
Suits a 2.1/2" SMS Union
Material: NITRILE
Colour: Black
SMS Union: Part 4 of 4
£13.58 each
List Price – Sign in to view Trade Prices 13.58 GBP
2.50" OD SMS BLUE EPDM O RING (SMS PART 4 OF 4)
Suits a 2.1/2" SMS Union
Material: EPDM
Colour: BLUE
SMS Union: Part 4 of 4
£2.10 each
List Price – Sign in to view Trade Prices 2.1 GBP
2.50" OD SMS GREEN VITON O RING (SMS PART 4 OF 4)
Suits a 2.1/2" SMS Union
Material: Viton
Colour: Green
SMS Union: Part 4 of 4
£13.65 each
List Price – Sign in to view Trade Prices 13.65 GBP
2.50" OD SMS WHITE PTFE O RING (SMS PART 4 OF 4)
Suits a 2.1/2" SMS Union
Material: PTFE
Colour: White
SMS Union: Part 4 of 4
£37.94 each
List Price – Sign in to view Trade Prices 37.94 GBP
3.00" OD SMS UNION BLACK EPDM O RING (SMS PART 4 OF 4)
Suits a 3" SMS Union
Material: EPDM
Colour: Black
SMS Union: Part 4 of 4
£15.96 each
List Price – Sign in to view Trade Prices 15.96 GBP
3.00" OD SMS UNION BLACK NITRILE O RING (SMS PART 4 OF 4)
Suits a 3" SMS Union
Material: NITRILE
Colour: Black
SMS Union: Part 4 of 4
£15.40 each
List Price – Sign in to view Trade Prices 15.4 GBP
3.00" OD SMS UNION BLUE EPDM O RING (SMS PART 4 OF 4)
Suits a 3" SMS Union
Material: EPDM
Colour: BLUE
SMS Union: Part 4 of 4
£2.24 each
List Price – Sign in to view Trade Prices 2.24 GBP
3.00" OD SMS UNION GREEN VITON O RING (SMS PART 4 OF 4)
Suits a 3" SMS Union
Material: Viton
Colour: Green
SMS Union: Part 4 of 4
£18.20 each
List Price – Sign in to view Trade Prices 18.2 GBP
3.00" OD SMS UNION WHITE PTFE O RING (SMS PART 4 OF 4)
Suits a 3" SMS Union
Material: PTFE
Colour: White
SMS Union: Part 4 of 4
£45.92 each
List Price – Sign in to view Trade Prices 45.92 GBP
4.00" OD SMS UNION BLACK NITRILE O RING (SMS PART 4 OF 4)
Suits a 4" SMS Union
Material: NITRILE
Colour: Black
SMS Union: Part 4 of 4
£21.28 each
List Price – Sign in to view Trade Prices 21.28 GBP
4.00" OD SMS UNION BLUE EPDM O RING (SMS PART 4 OF 4)
Suits a 4" SMS Union
Material: EPDM
Colour: BLUE
SMS Union: Part 4 of 4
£3.36 each
List Price – Sign in to view Trade Prices 3.36 GBP
4.00" OD SMS UNION GREEN VITON O RING (SMS PART 4 OF 4)
Suits a 4" SMS Union
Material: Viton
Colour: Green
SMS Union: Part 4 of 4
£23.38 each
List Price – Sign in to view Trade Prices 23.38 GBP
4.00" OD SMS UNION WHITE PTFE O RING (SMS PART 4 OF 4)
Suits a 4" SMS Union
Material: PTFE
Colour: White
SMS Union: Part 4 of 4
£68.53 each
List Price – Sign in to view Trade Prices 68.53 GBP