Company Advantages1. DMS Seals piston seal manufacturers is designed and crafted as we firmly follow international standards. The high pressure seals have strong wear resistance to hard conditions
2. It is promoted in the field due to strong applicability. We can support OEM and ODM
3. The product meets international standards in all aspects, such as performance, durability, availability and more. DMS Seals' production equipment and test equipment are on the leading level in the industry
4. The product USES the reliable examination instrument to carry on the examination, guarantees the product quality to be reliable, the performance is good. High-end talents and advanced technology have enabled DMS
o-ring seal quality to reach the industry's leading level
5. The product's unparalleled features due to its stable performance and powerful features have been widely praised by customers. DMS O Ring Manufacturers strictly follows the ISO9001 international quality certification system for production management
Installation Recommendation
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Installation Sizes
Groove Diameter DN H9 | Groove Diameter | Groove Width | Radius | Radial Clearance S max. | O-Ring Cross Section | X-Ring Seal Cross Section |
Standard Application | Heavy Duty Application | d1 h9 | L1+0.2 | R1 | 10MPa | 20MPa | 30MPa | d2 | W |
40 - 79.9 | 25 - 140 | DN - 10.0 | 6.3 | 0.6 | 0.3 | 0.2 | 0.15 | 2.62 | 1.78 |
80 - 132.9 | 50 - 250 | DN - 13.0 | 8.3 | 1.0 | 0.4 | 0.3 | 0.15 | 3.53 | 2.62 |
133 - 252.9 | 100 - 480 | DN - 18.0 | 12.3 | 1.3 | 0.4 | 0.3 | 0.20 | 5.33 | 3.53 |
463 - 700 | 425 - 700 | DN - 31.0 | 16.3 | 1.8 | 0.5 | 0.4 | 0.30 | 7.00 | 5.33 |
Application and properties
Apply to the working condition of fast speed, high pressure, and the necessary pressure keeping. Available for piston accumulator, clamping cylinder and positioning cylinder, especially recommended for heavy duty and large diameter applications. Double safety with low friction and high elasticity, Low gas permeability, excellent sliding performance in high pressure applications, no crawling phenomenon, simple groove structure, easy installation.
Sealing ring: filled PTFE
O-Ring: NBR / FKM
X-Ring: NBR / FKM
Working Conditions
Working Conditions |
Diameter Range | Pressure Range | Temperature Range | Speed | Medium |
3-1600mm | 0-60MPa | -30℃+200℃ | 3 m/s | hydraulic oil, flame retardant liquid, water and others |
Installation Dimensions
Bore Dia. | Groove Dia. | Groove Width | Order No. | O-Ring Dimension |
d h9 | D1 H9 | L1+0.2 |
40 42 45 | 30 32 35 | 6.3 6.3 6.3 | DAQ2-40*30*6.3 DAQ2-42*32*6.3 DAQ2-45*35*6.3 | 29.82*2.62 31.42*2.62 34.59*2.62 |
48 50 52 | 38 40 42 | 6.3 6.3 6.3 | DAQ2-48*38*6.3 DAQ2-50*40*6.3 DAQ2-52*42*6.3 | 37.77*2.62 39.34*2.62 40.94*2.62 |
55 60 63 | 45 50 53 | 6.3 6.3 6.3 | DAQ2-55*45*6.3 DAQ2-60*50*6.3 DAQ2-63*53*6.3 | 44.12*2.62 48.90*2.62 52.07*2.62 |
65 70 75 | 55 60 65 | 6.3 6.3 6.3 | DAQ2-65*55*6.3 DAQ2-70*60*6.3 DAQ2-75*65*6.3 | 53.64*2.62 58.42*2.62 63.17*2.62 |
80 85 90 | 67 72 77 | 8.3 8.3 8.3 | DAQ2-80*67*8.3 DAQ2-85*72*8.3 DAQ2-90*77*8.3 | 66.27*3.53 69.44*3.53 75.79*3.53 |
95 100 105 | 82 87 92 | 8.3 8.3 8.3 | DAQ2-95*82*8.3 DAQ2-100*87*8.3 DAQ2-105*92*8.3 | 78.97*3.53 85.32*3.53 91.67*3.53 |
110 115 120 | 97 102 107 | 8.3 8.3 8.3 | DAQ2-110*97*8.3 DAQ2-115*102*8.3 DAQ2-120*107*8.3 | 94.84*3.53 101.19*3.53 104.37*3.53 |
125 130 135 | 112 117 117 | 8.3 8.3 12.3 | DAQ2-125*112*8.3 DAQ2-130*117*8.3 DAQ2-135*117*12.3 | 110.72*3.53 113.89*3.53 113.67*5.33 |
140 150 160 | 122 132 142 | 12.3 12.3 12.3 | DAQ2-140*122*12.3 DAQ2-150*132*12.3 DAQ2-160*142*12.3 | 120.02*5.33 129.54*5.33 139.07*5.33 |
Company Features1. Dms Seals Technology Co.,limited now is a manufacturer with a reputation at home and abroad. We have got various kinds of awards issued by the government such as the advanced enterprise of the quality management system. This means our quality and business reliability are recognized by the Chinese government.
2. Covering a large area, our factory features reasonable production conditions. Its layout is in line with international regulations and standards, including illumination condition and standard production facilities.
3. We have increased customer base in recent years. The customer retention rate has increased by 5%, mainly because we continuously maximize customer’s lifetime values during cooperation. Dms Seals Technology Co.,limited will offer suggestions and feasible solutions to increase productivity for our customers. Inquire!