Company Advantages1. DMS Seals manufacturer owns a team of professional R&D group and skilled technicians. DMS Seal Manufacturer factory has established itself as a leading manufacturer, trader, and manufacture of pneumatic piston seals in the market.
2. DMS O Ring Manufacturers strictly follows the ISO9001 international quality certification system for production management. DMS Seal Manufacturer is full of vitality, energy and warrior spirit.
3. Finally, Dms Seals Technology Co.,limited provides a detailed cost-reduction strategy for each product. piston seals enhances the value of key components and eliminates unnecessary elements wherever possible to improve the overall product value while decreasing total cost of ownership. High-end talents and advanced technology have enabled DMS o-ring seal quality to reach the industry's leading level
Installation Recommendation

Application and properties
Standard double acting sealing, a wide range of applications. Friction resistance is very low, no crawling phenomenon, strong wear resistance, and saving installation space.
Sealing ring: filled PTFE
O-Ring: NBR / FKM
Working Conditions
Working Conditions |
Diameter Range | Pressure Range | Temperature Range | Speed | Medium |
3-1600mm | 0-35MPa | -30℃+200℃ | 1.5 m/s | hydraulic oil, flame retardant liquid, water and others. |
Installation Dimensions
Nominal Size of Packing, and Housing dimensions | L +0.2 | Order No. |
D | d | H |
20
25
30 | 14
19
21.5 | 3
3
3.8 | 3.2
3.2
4 | DPO20*14*3.2
DPO25*19*3.2
DPO30*21.5*4 |
31.5
32
35 | 23
23.5
26.5 | 3.8
3.8
3.8 | 4
4
4 | DPO31.5*23*4
DPO32*23.5*4
DPO35*26.5*4 |
35.5
40
45 | 27
31.5
36.5 | 3.8
3.8
3.8 | 4
4
4 | DPO35.5*27*4
DPO40*31.5*4
DPO45*36.5*4 |
50
53
55 | 41.5
44.5
46.5 | 3.8
3.8
3.8 | 4
4
4 | DPO50*41.5*4
DPO53*44.5*4
DPO55*46.5*4 |
56
60
63 | 47.5
51.5
49 | 3.8
3.8
6.3 | 4
4
6.5 | DPO56*47.5*4
DPO60*51.5*4
DPO63*49*6.5 |
65
70
71 | 51
56
57 | 6.3
6.3
6.3 | 6.5
6.5
6.5 | DPO65*51*6.5
DPO70*56*6.5
DPO71*57*6.5 |
75
80
85 | 61
66
71 | 6.3
6.3
6.3 | 6.5
6.5
6.5 | DPO75*61*6.5
DPO80*66*6.5
DPO85*71*6.5 |
90
95
100 | 76
81
86 | 6.3
6.3
6.3 | 6.5
6.5
6.5 | DPO90*76*6.5
DPO95*81*6.5
DPO100*86*6.5 |
105
110
112 | 91
96
98 | 6.3
6.3
6.3 | 6.5
6.5
6.5 | DPO105*91*6.5
DPO110*96*6.5
DPO112*98*6.5 |
115
120
125 | 101
106
111 | 6.3
6.3
6.3 | 6.5
6.5
6.5 | DPO115*101*6.5
DPO120*106*6.5
DPO125*111*6.5 |
130
135
140 | 116
121
126 | 6.3
6.3
6.3 | 6.5
6.5
6.5 | DPO130*116*6.5
DPO135*121*6.5
DPO140*126*6.5 |
150
160
170 | 136
146
150 | 6.3
6.3
9.8 | 6.5
6.5
10.0 | DPO150*136*6.5
DPO160*146*6.5
DPO170*150*10 |
180
190
200 | 160
170
180 | 9.8
9.8
9.8 | 10.0
10.0
10.0 | DPO180*160*10
DPO190*170*10
DPO200*180*10 |
Company Features1. Dms Seals Technology Co.,limited is a leading piston seals enterprise which has superiority in innovation. - Dms Seals Technology Co.,limited has a strong and complete production capacity.
2. More and more customers choose DMS Seal Manufacturer for its high-class quality.
3. DMS Seal Manufacturer's technology is of professional level. - We are committed to delivering operational excellence and the lowest cash cost of production.