Company Advantages1. High-end talents and advanced technology have enabled DMS
o-ring seal quality to reach the industry's leading level. As one of the unique feature, pneumatic piston seals successfully makes hydraulic piston seals sizes more popular among customers. High-end talents and advanced technology have enabled DMS o-ring seal quality to reach the industry's leading level
2. Dms Seals Technology Co.,limited, well-known for its superior quality, will provide first-class service. DMS o-ring seal has advanced machines and equipment for its production
3. And we want to ensure that the piston seals we develop is right for you and the end user – Our passionate, problem-solving, engineering-design teams are formed on a foundation of creativity, collaborative working and experience. DMS Seals provides professional design and production of high-grade o-ring seals
Installation Recommendation
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Installation Sizes
D H8 | d h9 | L+0.2 | H |
˂96 | D-16.3 | 8 | 7.5 |
96-190 | D-20 | 10 | 9.5 |
191-380 | D-28 | 13 | 12.5 |
381-1000 | D-36 | 20 | 19.5 |
Application and properties
Apply to hydraulic piston sealing, Consisting of a seal ring, two L-shaped POM back-up rings and an acting force O-Ring. The back-up ring acts as a support and guide to ensure a tight sealing environment. High wear resistance, low friction, no crawling phenomenon, easy installation.
Sealing ring: filled PTFE
O-Ring: NBR / FKM
L-Ring: POM / PA
Working Conditions
Working Conditions |
Diameter Range | Pressure Range | Temperature Range | Speed | Medium |
3-1600mm | 0-45MPa | -30℃+100℃ | 1 m/s | hydraulic oil, flame retardant liquid, water and others |
Installation Dimensions
D H8 | d h9 | H | L | e | Order No. |
40
45
50 | 23.2
28.2
33.2 | 7.5
7.5
7.5 | 8
8
8 | 7
7
7 | DGDA40*23.2*7.5
DGDA45*28.2*7.5
DGDA50*33.2*7.5 |
56
63
65 | 39.2
46.2
48.2 | 7.5
7.5
7.5 | 8
8
8 | 7
7
7 | DGDA56*39.2*7.5
DGDA63*46.2*7.5
DGDA65*48.2*7.5 |
70
75
80 | 53.2
58.2
63.2 | 7.5
7.5
7.5 | 8
8
8 | 7
7
7 | DGDA70*53.2*7.5
DGDA75*58.2*7.5
DGDA80*63.2*7.5 |
85
90
95 | 68.2
73.2
78.2 | 7.5
7.5
7.5 | 8
8
8 | 7
7
7 | DGDA85*68.2*7.5
DGDA90*73.2*7.5
DGDA95*78.2*7.5 |
100
105
110 | 80
85
90 | 9.5
9.5
9.5 | 10
10
10 | 10
10
10 | DGDA100*80*9.5
DGDA105*85*9.5
DGDA110*90*9.5 |
115
120
125 | 95
100
105 | 9.5
9.5
9.5 | 10
10
10 | 10
10
10 | DGDA115*95*9.5
DGDA120*100*9.5
DGDA125*105*9.5 |
130
135
140 | 110
115
120 | 9.5
9.5
9.5 | 10
10
10 | 10
10
10 | DGDA130*110*9.5
DGDA135*115*9.5
DGDA140*120*9.5 |
145
150
155 | 125
130
135 | 9.5
9.5
9.5 | 10
10
10 | 10
10
10 | DGDA145*125*9.5
DGDA150*130*9.5
DGDA155*135*9.5 |
160
170
180 | 140
150
160 | 9.5
9.5
9.5 | 10
10
10 | 10
10
10 | DGDA160*140*9.5
DGDA170*150*9.5
DGDA180*160*9.5 |
190
200
210 | 170
172
182 | 9.5
12.5
12.5 | 10
13
13 | 10
12
12 | DGDA190*170*9.5
DGDA200*172*12.5
DGDA210*182*12.5 |
220
225
235 | 192
197
207 | 12.5
12.5
12.5 | 13
13
13 | 12
12
12 | DGDA220*192*12.5
DGDA225*197*12.5
DGDA235*207*12.5 |
Company Features1. There is strict testing for quality of piston seals to make satisfying products for customers.
2. Our hydraulic piston seals have been well sold to all over the world known as its pneumatic piston seals. Welcome to visit our factory!