Pneumatic Seal-Industrial Seals, Rubber Ring & Custom Sealing Solutions

Pneumatic Seal

DEDE Pneumatic seals are sealing devices that use compressed air to seal the gap of the rotating shaft to prevent the working medium from leaking. An annular groove is machined on the housing, and compressed air enters to seal the gap of the rotating shaft to prevent the leakage of lubricating oil.

Pneumatic seal have the characteristics of simple structure, but require a certain pressure of air supply, so the consumption of compressed air is large, and the air source pressure is 0.03~0.05Mpa greater than the pressure of the sealing medium. Pneumatic oil seals are not limited by speed and temperature. They are usually used for sealing rotating mechanical equipment with small pressure difference, for sealing liquid media, and can also be used for sealing gas media, such as to prevent the leakage of lubricating oil in the bearing chamber. Sometimes it can be used in combination with labyrinth seals or spiral seals.

	D (H11)	d (h9)	H	d1	s	h
K25-020	20	5.2	8	12.2	1	1.4
K25-025	25	8	12	14.5	3	4
K25-025/2	25.4	6.35	12.7	9.4	2.5	3.5
K25-026	26	8	12	15.5	3	4
K25-028	28.58	6.35	12.7	12.58	2.5	3.5
K25-031	31.75	6.35	14.29	15.75	2.5	3.5
K25-032	32	8	15	16	3	4
K25-034	34.93	6.35	14.3	17.94	2.5	3.5
K25-035	35	8	15	19	3	4
K25-036	36	8	15	20	3	4
K25-040	40	10	18	23	4	5
K25-044	44.45	6.35	14.28	23.46	2.5	3.5
K25-050	50	10	18	29	4	5
K25-050/2	50	16	20.5	25	4	5
K25-050/7	50.8	9.53	15.88	15.75	3	4
K25-057	57.15	9.53	15.88	34.65	3	4
K25-060	60	12	22	36.8	4	5
K25-060/1	60.33	9.53	15.88	37.83	3	4
K25-062	62	15	22	39	5	6
K25-063	63	12	22	40.5	5	6
K25-063/4	63.5	9.53	15.88	41	3	4
K25-069	69.85	9.53	19.05	47.35	4	5.5
K25-070	70	12	22	47	5	6
K25-073	73.03	9.53	19.05	48.03	4	5.5
K25-075	75	15	22	52	5	6
K25-075/1	75	12	22.5	52	5	6
K25-076	76.2	12.7	19.05	51.2	4	5
K25-080	80	16	25	55	5	6.5
K25-080/3	80	12	25	55	5	6.5
K25-080/4	80	16	22.5	55.2	5	6.5
K25-080/5	80	20	22.5	55.2	5	6.5
K25-082	82.55	12.7	19.05	57.55	4	5
K25-082/1	82.55	22.23	19.05	57.56	4	5
K25-088	88.9	12.7	22.23	63.9	5	6
K25-090	90	16	25	65	5	6.5
K25-090/1	90	12	24	65	6	7.5
K25-095	95.25	12.7	22.23	70.26	5	6
K25-100	100	16	25	75	5	6.5
K25-100/1	100	20	25	75	5	6.5
K25-100/4	100	12	25	75	5	6.5
K25-100/6	100	20	26	75	5	6.5
K25-100/10	100	18	25	75	5	6.5
K25-101	101.6	12.7	22.23	76.6	5	6
K25-102	102	16	25	77	5	6.5
K25-107	107.95	12.7	22.23	82.96	5	6
K25-110	110	18	25	85	6	7.5
K25-114	114.3	19.05	22.23	79.3	5	6
K25-125	125	20	30	90	8	10
K25-125/1	125	20	26	90	6	7.5
K25-125/3	125	18	30	90	8	10
K25-127	127	19.05	25.4	92	6	7.5
K25-130	130	20	29	95	8	10
K25-140	140	20	30	95	10	12
K25-146	146.05	19.05	25.4	101.06	6	7.5
K25-150	150	20	30	105	10	12
K25-152	152.4	19.05	25.4	107.4	6	7.5
K25-160	160	27	31	115	10	12
K25-160/3	160	20	30	130	10	10.7
K25-165	165.1	19.05	25.4	120.1	6	7.5
K25-177	177.8	31.75	28.58	132.8	8	10
K25-180	180	27	31	135	10	12
K25-190	190	20	30	160.4	10	12
K25-190/1	190	12	35	140	10	13
K25-200	200	27	35	150	12	15
K25-200/2	200	20	35	150	12	15
K25-200/4	200	20	30	150	12	15.5
K25-200/5	200	30	35	150	8	10.6
K25-202	202.2	31.75	38.1	150.5	10	11
K25-203	203.2	31.75	28.58	153.2	8	10
K25-250	250	30	35	200	12	16.5
K25-253	253	44.45	41.27	180	12	15
K25-260	260	16	35	210	12	15.5
K25-300	300	30	35	250	12	15.5
K25-320	320	36	40	278.5	15	18.6
K25-400	400	40	50	320	20	23