Company Advantages1. Owing to its elegant look and sturdy design, these sets are highly in demand amongst our customers.
2. Dms Seals Technology Co.,limited works hard to make the quality and performance of piston seals products more in line with the needs of customers. DMS Seals provides professional design and production of high-grade 
o-ring seals
3. Throughout your project, our hydraulic piston seals management teams work on your behalf bringing substantial experience in communication, resourcing and gateway management. DMS Seal manufacturer was established in 2008 and now has more than 10 years professional experience
4. o-ring seal provides rapid pneumatic piston seals, a superior finish and eliminates the need for hydraulic piston seals sizes. To reduce costs with high-efficiency work is the DMS's purpose.
Installation Recommendation
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Application and properties
Suitable for long stroke, a wide range of fluids and high temperature occasions. The application of heavy duty double acting piston sealing under high pressure conditions is excellent. Applicable to larger piston clearance , it has good leakage control, extrusion resistance and wear resistance in heavy duty and construction machinery cylinder piston sealing system. Good static sealing property, simple groove structure, larger extrusion clearances can be allowed, be able to work in dusty condition.
Sealing ring: filled PTFE
O-ring: NBR / FKM
Back-up ring: POM / PA
Working Conditions
Working  Conditions  | 
Diameter Range  | Pressure Range  | Temperature Range  | Speed  | Medium  | 
50-350mm  | 0-50MPa  | -30℃ +100℃  | 1.5 m/s  | hydraulic oil, flame retardant liquid, water and others  | 
Installation Dimensions
Groove Sizes  | L+0.2  | Order No.   | 
D1  | dN  | H  | 
50 
 55 
 60  | 36 
 41 
 46  | 8.5 
 8.5 
 8.5  | 9 
 9 
 9  | SPGW50*36*8.5 
 SPGW55*41*8.5 
 SPGW60*46*8.5  | 
63 
 65 
 70  | 48 
 50 
 55  | 10.5 
 10.5 
 10.5  | 11 
 11 
 11  | SPGW63*48*10.5 
 SPGW65*50*10.5 
 SPGW70*55*10.5  | 
75 
 80 
 85  | 60 
 65 
 70  | 10.5 
 10.5 
 10.5  | 11 
 11 
 11  | SPGW75*60*10.5 
 SPGW80*65*10.5 
 SPGW85*70*10.5  | 
90 
 95 
 100  | 75 
 80 
 85  | 10.5 
 10.5 
 12  | 11 
 11 
 12.5  | SPGW90*75*10.5 
 SPGW95*80*10.5 
 SPGW100*85*12  | 
105 
 110 
 115  | 90 
 95 
 100  | 12 
 12 
 12  | 12.5 
 12.5 
 12.5  | SPGW105*90*12 
 SPGW110*95*12 
 SPGW115*100*12  | 
120 
 125 
 130  | 105 
 102 
 107  | 12 
 15.5 
 15.5  | 12.5 
 16 
 16  | SPGW120*105*12 
 SPGW125*102*15.5 
 SPGW130*107*15.5  | 
135 
 140 
 145  | 112 
 117 
 122  | 15.5 
 15.5 
 15.5  | 16 
 16 
 16  | SPGW135*112*15.5 
 SPGW140*117*15.5 
 SPGW145*122*15.5  | 
150 
 155 
 160  | 127 
 132 
 137  | 15.5 
 15.5 
 15.5  | 16 
 16 
 16  | SPGW150*127*15.5 
 SPGW155*132*15.5 
 SPGW160*137*15.5  | 
165 
 170 
 180  | 142 
 147 
 157  | 15.5 
 15.5 
 15.5  | 16 
 16 
 16  | SPGW165*142*15.5 
 SPGW170*147*15.5 
 SPGW180*157*15.5  | 
185 
 190 
 200  | 162 
 167 
 177  | 15.5 
 15.5 
 15.5  | 16 
 16 
 16  | SPGW185*162*15.5 
 SPGW190*167*15.5 
 SPGW200*177*15.5  | 
210 
 220 
 225  | 187 
 197 
 202  | 15.5 
 15.5 
 17  | 16 
 16 
 17.5  | SPGW210*187*15.5 
 SPGW220*197*15.5 
 SPGW225*202*15.5  | 
230 
 240 
 250  | 207 
 217 
 222  | 17 
 17 
 17  | 17.5 
 17.5 
 17.5  | SPGW230*207*15.5 
 SPGW240*217*15.5 
 SPGW250*222*17  | 
260 
 270 
 280  | 232 
 242 
 252  | 17 
 17 
 17  | 17.5 
 17.5 
 17.5  | SPGW260*232*17 
 SPGW270*242*17 
 SPGW280*252*17  | 
300 
 320 
 350  | 272 
 292 
 322  | 17 
 17 
 17  | 17.5 
 17.5 
 17.5  | SPGW300*272*17 
 SPGW320*292*17 
 SPGW350*322*17  | 
 Company Features1. Dms Seals Technology Co.,limited gathers industry elites to produce the best piston seals.
2.  Our professional technician strictly operate machines to ensure its normal operation and produce high quality hydraulic piston seals.
3.  We can customize solutions to making o-ring seal for your own pneumatic piston seals use.