Hydraulic Spare Parts Piston Seals UKH

UKH

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1. Application and properties

It is suitable for single-acting sealing of hydraulic reciprocating motion piston rod, and has good sealing performance at high, medium and low pressures, with almost no leakage under normal conditions.

Good extrusion resistance, small compression deformation, impact resistance, easy installation, and good wear resistance. The groove is closed and easy to install. The biggest feature is small leakage.

2. Standard material

NBR/HNBR

3. Working conditions

Working Conditions

Diameter

Range

Pressure

Range

Temperature

Range°C

Speed

Medium

18～500mm

0～40MPa

-35～110℃

0.5m/s

hydraulic oil

4. Related Dimensions

R1=0.2～0.5; R2=0.1～0.2; e=0.1～0.3; C=(0.7～1.0)L；The specific value is selected according to the size of the section of the seal, and the remaining values are listed in the Installation Dimensions table.

5. Marking method

Mark it with the dimension of installation groove as below：

UKH “Bore Diameter D” × “Groove Diameter d” × “Groove Width L”

For example: UKH100×80×13 means , Groove Dimension: Bore Dia. 100, Groove Dia.80, Groove width13 (If the back-up ring is added, the actual groove width is 16)

6. Installation Dimensions

Bore	Groove	Groove	Groove Width	Bore	Groove	Groove	Groove Width
Dia.	Dia.	Width	adding back-up ring	Dia.	Dia.	Width	adding back-up ring
D	d	L	L1	D	d	L	L1
18	7.5	8.5	10.5	95	80	10	13
20	10	7	9	100	80	13	16
20	10	9	11	100	80	16	19
20	12	5.7	7.7	105	85	16	19
22	14	5.7	7.7	110	90	13	16
25	15	7	9	110	95	11	14
25	15	9	11	115	95	16	19
26	16	8.5	10.5	120	100	13	16
28	15	11	13	120	105	11	14
28	20	5.7	7.7	125	105	13	16
30	20	5.7	7.7	125	110	11	14
30	20	9	11	130	110	13	16
31	18	11	13	130	115	11	14
33	20	11	13	140	120	13	16
35	22	11	13	140	120	17	20
35	25	7	9	140	125	11	14
35	25	9	11	150	125	20	23
38	25	11	13	150	130	13	16
40	25	10	12	150	135	11	14
40	27	9	12	160	135	20	23
40	30	9	12	160	140	13	16
41	28	11	14	160	145	11	14
45	30	10	13	165	140	20	23
45	30	11	14	165	140	21	24
45	35	9	12	170	145	20	23
50	34	11	14	170	150	13	16
50	35	10	13	170	155	11	15
50	35	13	16	180	155	17	21
50	40	9	12	180	155	21	25
55	40	10	13	180	160	17	21
55	40	9	12	180	165	11	15
56	40	11	14	185	160	20	24
56	40	13	16	190	165	17	21
56	46	9	12	190	170	13	17
60	45	10	13	190	175	11	15
60	50	9	12	200	175	17	21
63	47	11	14	200	180	17	21
63	53	9	12	210	185	17	21
65	50	10	13	210	190	17	21
65	50	11	14	220	195	17	21
65	55	9	12	220	200	17	21
70	50	13	16	225	200	17	21
70	55	10	13	220	205	17	21
70	60	9	12	230	205	17	21
71	51	13	16	230	205	21	24
71	55	11	14	230	210	17	21
71	56	10	13	240	215	17	21
71	61	9	12	240	220	17	21
75	55	13	16	250	225	17	21
75	60	10	13	250	225	21	25
75	65	9	12	250	230	17	21
80	60	13	16	260	235	17	21
80	64	11	14	260	240	17	21
80	70	9	12	270	245	17	21
85	65	13	16	270	250	17	21
85	75	9	12	280	250	20	24
90	70	13	16	290	260	20	24
90	75	10	13	300	270	20	24
90	80	9	12	300	270	26	30
95	75	13	16	300	275	20	24

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