ISO Stainless ISO Vacuum Centering Ring Seal O Ring Outer Aluminum Rings

ISO Flange Assembly Instructions

Optional fastener flanges are joined around the periphery with clamps.
Double claw clamps are used when a pair of OF flanges are joined (See diagram A.),
or single claw clamps are used to join an OF flange to a tapped nonrotatable on a pump or gate valve. (See diagram B.)
This fastening method allows the OF flange to be rotateforease of component alignment. Additionally, a rotatable bolt ring can be used to fasten an OF flange to a nonrotatable flange using bolts. (See diagram C.)
A retainer ring prevents the OF flange from slipping through the bolt ring. Nonrotatable ISO flanges are assembled with bolts.
(See diagram D.) They do not allow rotation of bolt holes on mating flanges to align components.

Center Ring with Space Ring & O Ring

*Center Ring Material: SS304

*Outer Ring Material: Aluminum

*O-Ring Material: Viton or NBR

	Model No for Alu+SS304+Viton	Size	A/mm	B/mm	N.W./g
	FLG31N1S63348	ISO63	94	68	62.8
	FLG31N1S80348	ISO80	109	81	76.3
	FLG31N1S100348	ISO100	128	100	96.3
	FLG31N1S125348	ISO125	148	124	116.8
	FLG31N1S160348	ISO160	179	148	148.2
	FLG31N1S200348	ISO200	239	210	199.3
	FLG31N1S250348	ISO250	287	257.5
	FLG31N1S320348	ISO320	346.33	312
	FLG31N1S400348	ISO400	428.8	394
	FLG31N1S500348	ISO500	535	494