（11） Spiral Wound Gasket to BS 1560 raised face flange（table 1.1.25）

Products （VALQUA No.）	Product Dimension Standard	Applicable Flange Standard
●Spiral Wound Gasket with outer ring (6591)、(7591)、8591 ●Spiral Wound Gasket with inner/outer ring 6596、7596、8596	BS 3381-1989	BS 1560

Table 1．1．25　 Unit mm

Nominal Dia		Outer Ring OD D4						Gasket OD D3	Gasket ID D2			Inner Ring ID D1(1)
A	B	Class 150	Class 300	Class 600	Class 900	Class 1500	Class 2500		Class 150	Class 300 to 1500	Class 2500
15	½	47.6	54.0	54.0	63.5	63.5	69.9	32.2	†18.7	†18.7	†18.7	14.3
20	¾	57.2	66.7	66.7	69.9	69.9	76.2	40.1	†26.6	†25.0	†25.0	20.6
25	1	66.7	73.0	73.0	79.4	79.4	85.7	48.0	†32.9	†31.4	†31.4	27.0
32	1¼	76.2	82.6	82.6	88.9	88.9	104.8	60.7	†45.6	†44.1	†39.3	34.9
40	1½	85.7	95.3	95.3	98.4	98.4	117.5	70.3	53.6	†50.4	†47.2	41.3
50	2	104.8	111.1	111.1	142.9	142.9	146.1	86.1	69.5	66.3	58.3	52.4
65	2½	123.8	130.2	130.2	165.1	165.1	168.3	98.8	82.2	79.0	69.5	63.5
80	3	136.5	149.2	149.2	168.3	174.6	196.9	121.1	101.2	94.9	91.7	77.8
100	4	174.6	181.0	193.7	206.4	209.6	235.0	149.6	126.6	120.3	117.1	103.2
125	5	196.9	215.9	241.3	247.7	254.0	279.4	178.2	153.6	147.2	142.5	128.5
150	6	222.3	250.8	266.7	288.9	282.6	317.5	210.0	180.6	174.2	171.1	154.0
200	8	279.4	308.0	320.7	358.8	352.4	387.4	263.9	231.4	225.0	215.5	203.2
250	10	339.7	362.0	400.1	435.0	435.0	476.3	317.9	286.9	280.6	269.5	254.0
300	12	409.6	422.3	457.2	498.5	520.7	549.6	375.1	339.3	333.0	323.5	303.2
350	14	450.9	485.8	492.1	520.7	577.9	－	406.8	371.1	364.7	-	342.9
400	16	514.4	539.8	565.2	574.7	641.4	－	464.0	421.9	415.5	-	393.7
450	18	549.3	596.9	612.8	638.2	704.9	－	527.5	475.9	469.5	-	444.5
500	20	606.4	654.1	682.6	698.5	755.7	－	578.3	526.7	520.3	-	495.3
600	24	717.6	774.7	790.6	838.2	901.7	－	686.2	631.4	625.1	-	596.9

*(1) Inner Ring ID（D1）is minimum dimension..

【Note】
1. Dimension of gasket with mark † is not compatible with Slip-on flnage and Threaded flnage.
2. Spiral Wound Gasket with inner/outer ring is recommneded in case of filler material of VALQUAFOIL and PTFE..