- Internally mounted inward leakage, singe face, single spring, unbalanced, rubber bellows structure.
- The rotary ring is driven by rubber bellows, good floating

Materials(to DIN24960)

- Rotary Ring: B, U1, U2, Q1, Q2
- Stationary Ring: U1, U2,Q1,Q2, V1,V2
- Auxiliary Seal: P, E, V
- Spring and Other Parts: F, G

Operating limits

- Pressure: ≤ 1.0MPa
- Temperature: -20~150℃
- Speeds: ≤10m/sec

Applications

Used in auto-cooling pumps, centrifugal pumps, submersible pumps, and general industrial pumps

Medium

Oil, water, and other weak corrosive fluid

Size Information

Model	d1	d3	D7	d14	L1	L2	L3	L4	L25	L26
BIA-14	14	27.0	30	22.4	23.7	4.5	18.7	5.0	9.7	2.5
BIA-16	16	28.5	32	23.0	26.0	4.5	21.0	5.0	12.0	2.5
BIA-18	18	30.5	35	25.5	30.0	6.0	22.5	7.5	13.0	2.5
BIA-20	20	31.8	35	26.0	29.0	6.5	21.0	8.0	11.5	3.0
BIA-25	25	39.0	40	34.0	33.5	6.5	25.5	8.0	15.0	3.0
BIA-28	28	42.0	43	36.5	33.5	6.5	25.5	8.0	15.0	3.0
BIA-30	30	44.0	45	38.5	34.5	7.5	25.5	9.0	15.0	3.0
BIA-32	32	46.0	48	40.0	42.5	7.5	33.5	9.0	21.0	4.5
BIA-33	33	47.0	48	40.5	42.5	7.5	33.5	9.0	21.0	4.5
BIA-35	35	49.0	50	42.5	42.5	7.5	33.5	9.0	21.0	4.5
BIA-38	38	54.0	56	46.5	42.5	7.5	33.5	9.0	21.0	4.5
BIA-40	40	56.0	58	48.0	42.5	7.5	33.5	9.0	21.0	4.5
BIA-43	43	59.0	61	51.0	46.0	8.0	36.5	9.5	24.0	5.5
BIA-45	45	61.0	63	52.5	47.5	8.0	38.0	9.5	24.0	5.5
BIA-48	48	64.0	66	55.5	47.5	8.0	38.0	9.5	24.0	5.5
BIA-50	50	66.0	70	57.0	47.5	8.0	38.0	9.5	24.0	5.5
BIA-53	53	69.0	73	60.0	50.5	8.0	41.0	9.5	26.0	6.0
BIA-55	55	71.0	75	62.0	50.5	8.0	41.0	9.5	26.0	6.0
BIA-58	58	78.0	78	68.0	51.5	8.0	42.0	9.5	26.0	6.0
BIA-60	60	80.0	80	70.0	51.5	8.0	42.0	9.5	26.0	6.0
BIA-70	70	90.0	92	80.0	56.0	9.5	45.0	11.0	28.0	6.0
BIA-80	80	104.0	104	90.0	67.0	10.0	55.0	12.0	37.0	8.0
BIA-85	85	108.0	109	95.0	76.2	10.0	64.2	12.0	48.0	8.0
BIA-90	90	113.0	114	100.0	78.2	10.2	66.2	12.0	50.0	8.0

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