o-ring seal,hydraulic piston seals sizes

Rod seal for excavator parts for hydraulic cylinder parts/hydraulic seals

FKM Encapsulated Silicone O-ring,PTFE Encapsulated Silicone O-ring

High Pressure Black Double Lips Stainless Steel PTFE Oil Seal For Mechanical SeaL

Carbon fiber filled PTFE spring energized seal

Product Information
Customer Reviews

Installation Recommendation

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Application and properties

Apply to cylinder piston，Consisting of a seal ring, an O-Ring, a pair of retaining rings and a pair of guide sleeves. The seal ring and cylinder bore conforming to be a symmetric section to achieve the sealing performance, with double acting sealing performance.

Standard materials

Sealing ring: filled PTFE

O-Ring: NBR / FKM

Guide ring: filled PTFE / PA

Working Conditions

Working Conditions
Diameter Range	Pressure Range	Temperature Range	Speed	Medium
3-1600mm	0-45MPa	-30℃+100℃	1 m/s	hydraulic oil, water and emulsion

Installation Dimensions

D	d	b	d2	d3	a	c	f	e	Order No.
40 45 50	26 31 34	30 30 32	32 37 42	36 41 46	3.5 3 3	15.5 15.5 20.5	7.25 7.25 5.8	7 7 7	DKDF402630 DKDF453130 DKDF503432
56 60 63	40 44 47	32 32 32	48 52 55	52 56 59	3 3 3	20.5 20.5 20.5	5.8 5.8 5.8	7 7 7	DKDF564032 DKDF604432 DKDF634732
65 70 75	49 54 59	32 32 32	57 62 67	61 66 71	3 3 3	20.5 20.5 20.5	5.8 5.8 5.8	7 7 7	DKDF654932 DKDF705432 DKDF755932
80 85 90	62 67 72	36 36 36	72 77 82	76 81 86	3 3 3	22.5 22.5 22.5	6.8 6.8 6.8	7 7 7	DKDF806236 DKDF856736 DKDF907236
95 100 105	77 82 87	36 36 36	87 92 97	91 96 101	3 3 3	22.5 22.5 22.5	6.8 6.8 6.8	7 7 10	DKDF957736 DKDF1008236 DKDF1058736
110 115 120	92 97 102	36 36 36	102 107 112	106 111 116	3 3 3	22.5 22.5 22.5	6.8 6.8 6.8	10 10 10	DKDF1109236 DKDF1159736 DKDF12010236
125 130 135	103 108 113	43 43 43	115 120 125	121 126 131	4 4 4	26.5 26.5 26.5	8.3 8.3 8.3	10 10 10	DKDF12510343 DKDF13010843 DKDF13511343
140 145 150	118 123 128	43 43 43	130 135 140	136 141 146	4 4 4	26.5 26.5 26.5	8.3 8.3 8.3	10 10 10	DKDF14011843 DKDF14512343 DKDF15012843
155 160 170	133 138 148	43 43 48	145 150 160	151 156 166	4 4 6	26.5 26.5 26.5	8.3 8.3 10.8	10 10 10	DKDF15513343 DKDF16013843 DKDF17014848
180 190 195	158 165 170	48 48 48	170 180 185	176 186 191	6 4.5 4.5	26.5 31.5 31.5	10.8 8.3 8.3	10 10 10	DKDF18015848 DKDF19016548 DKDF19517048
200 210 220	175 185 195	48 58 58	190 200 210	196 206 216	4.5 8 8	31.5 31.5 31.5	8.3 13.3 13.3	10 12 12	DKDF20017548 DKDF21018558 DKDF22019558
235 240 250	210 215 225	74 74	225 230 240	231 236 246	15 15 15	31.5 31.5 31.5	21.3 21.3 21.3	12 12 12	DKDF23521074 DKDF24021574 DKDF25022574
265 270 275	240 245 250	74 74 74	255 260 265	261 266 271	15 15 15	31.5 31.5 31.5	21.3 21.3 21.3	12 12 12	DKDF26524074 DKDF27024574 DKDF27525074