Company Advantages1. Moreover, we will cultivate our business little by little and perform each task step by step. Abiding by the management principle of 'Three-Good & One-Fairness (good quality, good credibility, good services, and reasonable price), we are looking forward to welcoming the new era with you.DMS Seals manufacturer owns a team of professional R&D group and skilled technicians
2. The R&D teams have the ability to design and develop seals for various of complicated working condition of sealing system. DMS Seal Manufacturer believes the achievement of customer expectation will enhance the customer satisfication.
3. The best part about this piston seals is the pneumatic piston seals, which features hydraulic piston seals sizes. DMS Seal manufacturer is a technology enterprise which specialized in the R&D and production of seals.
Installation Recommendation

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.
Sealing ring: filled PTFE
O-Ring: NBR / FKM
Back-up ring: filled PTFE / PA
Guide ring: filled PTFE / PA
Working Conditions
Working Conditions |
Diameter Range | Pressure Range | Temperature Range | Speed | Medium |
3-1600mm | 0-45MPa | -30℃+200℃ | 1 m/s | hydraulic oil, flame retardant liquid, water and others |
Installation Dimensions
D | d | b | d2 | d3 | a | c | f | e | Order No. |
40
45
50 | 26
31
34 | 32
32
39 | 32
37
42 | 36
41
46 | 3.5
3
3 | 15.5
15.5
20.5 | 8.25
8.25
9.25 | 7
7
7 | DDKK40*26*32
DDKK45*31*32
DDKK50*34*39 |
56
60
63 | 40
44
47 | 39
39
39 | 48
52
55 | 52
56
59 | 3
3
3 | 20.5
20.5
20.5 | 9.25
9.25
9.25 | 7
7
7 | DDKK56*40*39
DDKK60*44*39
DDKK63*47*39 |
65
70
75 | 49
54
59 | 39
39
39 | 57
62
67 | 61
66
71 | 3
3
3 | 20.5
20.5
20.5 | 9.25
9.25
9.25 | 7
7
7 | DDKK65*49*39
DDKK70*54*39
DDKK75*59*39 |
80
85
90 | 62
67
72 | 43
43
43 | 72
77
82 | 76
81
86 | 3
3
3 | 22.5
22.5
22.5 | 10.25
10.25
10.25 | 7
7
7 | DDKK80*62*43
DDKK85*67*43
DDKK90*72*43 |
95
100
105 | 77
82
87 | 43
43
43 | 87
92
97 | 91
96
101 | 3
3
3 | 22.5
22.5
22.5 | 10.25
10.25
10.25 | 7
7
10 | DDKK95*77*43
DDKK100*82*43
DDKK105*87*43 |
110
115
120 | 92
97
102 | 43
43
43 | 102
107
112 | 106
111
116 | 3
3
3 | 22.5
22.5
22.5 | 10.25
10.25
10.25 | 10
10
10 | DDKK110*92*43
DDKK115*97*43
DDKK120*102*43 |
125
130
140 | 103
108
118 | 53
53
53 | 115
120
130 | 121
126
136 | 4
4
4 | 26.5
26.5
26.5 | 13.25
13.25
13.25 | 10
10
10 | DDKK125*103*53
DDKK130*108*53
DDKK140*118*53 |
150
160
165 | 128
138
143 | 53
53
57 | 140
150
155 | 146
156
161 | 4
4
6 | 26.5
26.5
26.5 | 13.25
13.25
15.25 | 10
10
10 | DDKK150*128*53
DDKK160*138*53
DDKK165*143*57 |
170
180
190 | 148
158
165 | 57
57
64 | 160
170
180 | 166
176
186 | 6
6
4.5 | 26.5
26.5
31.5 | 15.25
15.25
16.25 | 10
10
10 | DDKK170*148*57
DDKK180*158*57
DDKK190*165*64 |
195
200
210 | 170
175
185 | 64
64
71 | 185
190
200 | 191
196
206 | 4.5
4.5
8 | 31.5
31.5
31.5 | 16.25
16.25
19.75 | 10
10
12 | DDKK195*170*64
DDKK200*175*64
DDKK210*185*71 |
Company Features1. Inquire! DMS Seal Manufacturer Is Looking For Creditable piston seals, pneumatic piston seals, hydraulic piston seals sizes Wholesale Agents All Over The World. Do Feel Free To Contact Us.
2. DMS Seal Manufacturer is committed to wining wide market with its core competitiveness. Inquiry!