Mechanical Piston Seals UKL for Water Pump

UKL

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1. Application and properties

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

It has a smaller cross-section, smaller groove size for installation, and lower friction coefficient with the cylinder barrel.

Good impact resistance and wear resistance.

The grooves are closed for easy installation. Mainly used in the work of the internal leakage requirements, and the speed of the piston movement is not particularly high in the low pressure cylinder.

2. Standard material

NBR/HNBR

3. Working conditions

Working Conditions

Diameter

Range

Pressure

Range

Temperature

Range°C

Speed

Medium

35～500mm

0～20MPa

-35～110℃

0.5m/s

hydraulic oil

4. Marking method

Mark it with the dimension of installation groove as below：

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

For example: UKL100×85×10 means Groove Dimension: Bore Dia. 100, Groove Dia.85, Groove width 10

Installation Dimensions:

Bore	Groove	Groove	导入长	Bore	Groove	Groove	导入长
Dia.	Dia.	Width	导入长	Dia.	Dia.	Width	导入长
D	d	L	C	D	d	L	C
35	27	5.7	2	115	100	10	4
35.5	27.5	5.7	2	120	105	10	4
35.5	28	5.7	2	120	106	9.5	4
40	30	7	2.5	125	112	9.5	4
41.5	31.5	7	2.5	125	112	10	4
45	35	7	2.5	130	115	10	4
45	35.5	7	2.5	140	125	10	4
50	40	7	2.5	145	130	10	4
55	45	7	2.5	150	135	10	4
56	45	8	2.5	150	136	9.5	4
56	46	7	2.5	155	140	10	4
60	50	7	2.5	160	145	10	4
63	53	7	2.5	170	155	10	4
65	55	7	2.5	175	160	10	4
66	56	7	2.5	180	165	10	4
70	60	7	2.5	190	175	10	4
71	60	8	2.5	200	180	13	4
71	61	7	2.5	210	190	13	4
73	63	7	2.5	220	200	13	5
75	65	7	2.5	224	204	13	5
77	67	7	2.5	225	205	13	5
80	70	7	2.5	230	210	13	5
80	71	7	2.5	240	220	13	5
85	75	7	2.5	250	230	13	5
90	80	7	2.5	260	240	13	5
100	85	10	4	270	250	13	5
105	90	10	4	280	255	17	6.5
110	95	10	4	290	265	17	6.5
112	98	9.5	4	300	275	17	6.5

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