BS4825-3 Gaskets

BS4825:1991 is the British Standard for stainless steel tubes and fitting for the food industry and other hygienic applications.
Part 3 - specification for clamp type couplings relates to the elastomer gaskets which are used to seal these couplings.

PPE manufactures Hyclamp™ gaskets to BS4825-3 in various imperial sizes from 1" to 4" (nominal), including Type I (unlipped) and Type II (lipped) variations. Use the HyClamp Look-up Tool to find sizes and PPE part numbers.

BS4825-3 hygienic gaskets are molded in several elastomer material grades, including EPDM, silicone, FKM and FFKM. This range of materials provides a solution for every application including X-ray/metal detectable elastomers. PPE's HyClamp™ materials meet various international sanitary standards and approvals including FDA, USP Class VI, 3A 18-03 Sanitary Standards and EC1935/EC2023, in addition to being free from animal derived ingredients (ADI-free). More information on each of the materials is provided below.

HyClamp Elastomer Material Range

HyClamp hygienic gaskets are available in the following elastomer materials

PPE Material	Material Type	Color	Temp Range °C	FDA	USP	3A 18-03	Metal Detectable
Perlast® G74S	FFKM	White	-15 to +260	A-F	87+88	Class I	No
V70SW	FKM	White	-10 to +200	A-F	87+88	Class I	No
Detectaseal XE7A	EPDM	Blue	-40 to +150	A-F	--	--	Yes
Detectaseal XS7H	Silicone (VMQ)	Black	-60 to +200	A-F	88	--	Yes