Equivalent to:

● Flowserve RO-A & Flowserve RO-B Multi Springs Mechanical Seal

Operating Limits:

● Temperature: -20℃ - +180℃

● Pressure：≤ 10bar

● Speed: ≤ 15m/s

● Shaft Size: 20mm - 100mm

Materials:

● Seal Rings: A,B,Q1/12,Q2/22, U1/12,U2/22

● Elastomer: VITON, EPDM, NBR, FFKM, AFLAS

● Metal Part: SS304, SS316

Assembly Dwg:

Dimensions (mm):

D	D3	L1	RO-A					RO-B
D	D3	L1	L2	L3	L7	D2	D7	L4	L5	D6	D8
20	34	35	23	25	18	36	42	13	21	29	35
22	36	35	23	25	18	38	44	13	21	31	37
24	38	35	23	25	18	40	46	13	21	33	39
25	39	35	23	25	18	41	47	13	21	34	40
28	42	35	23	25	18	44	50	13	21	37	43
30	44	35	23	25	18	46	52	13	21	39	45
32	46	35	23	25	18	48	54	13	21	42	48
33	47	35	23	25	18	49	55	13	21	42	48
35	49	35	23	25	18	51	57	13	21	44	50
38	54	39	25	27	20	58	64	13	21	50	56
40	56	39	25	27	20	60	66	13	21	52	58
42	58	39	25	27	20	62	68	/	/	/	/
43	59	39	25	27	20	63	69	13	21	55	61
45	61	39	25	27	20	65	71	13	21	57	63
48	64	39	25	27	20	68	74	13	21	60	66
50	66	39	25	27	20	70	76	13	21	62	68
52	68	40	25	27	20	72	78	/	/	/	/
53	69	40	25	27	20	73	79	13	21	65	71
55	71	40	25	27	20	75	81	13	21	67	73
58	76	41	28	30	22	83	89	16	24	70	79
60	78	41	28	30	22	85	91	16	24	72	81
62	80	41	28	30	22	87	93	/	/	/	/
63	81	41	28	30	22	88	94	16	24	75	84
65	83	41	28	30	22	90	96	16	24	77	86
68	86	41	30	32	24	93	99	16	24	81	90
70	90	42	30	32	24	95	101	16	24	83	92
75	95	42	30	32	24	104	110	16	24	88	97
80	100	42	31	33	25	109	115	16	24	96	105
85	105	43	31	33	25	114	120	16	24	101	110
90	110	45	31	33	25	119	125	16	24	106	115
95	115	45	31	33	25	124	130	16	24	111	120
100	120	45	31	33	25	129	135	16	24	116	125

Related Introduction

The technical requirements for mechanical seals are relatively high, and a variety of knowledge theories coexist. Take mechanical seals or floating ring seals as an example. To solve these sealing problems, it is necessary to consider the influence of the deformation of the stator and rotor components due to the force and temperature, as well as the impact of vibration and wear on the hydrodynamic characteristics of the fluid film. That is to say, it is necessary to study and analyze the sealing problem from the aspects of fluid dynamics, elastic theory, heat transfer, tribology and vibration theory. This is the theoretical foundation and basic knowledge that engineers and technicians engaged in sealing technology should possess.

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ROA Mechanical Seal