New safety seal piston ring company company for light and medium hydraulic systems

Company Advantages
1. DMS Seal Manufacturer is manufactured with quality components and parts. They are finely fabricated, welded, honed, polished, and painted by the professional technicians. DMS Seals takes the lead in grasping the development trend of the industry
2. This product has significantly changed the way we live or work. It makes life or working much easier, saving efforts for many daily tasks. To reduce costs with high-efficiency work is the DMS's purpose
3. This kind of product with high-quality has the advantages of certain flexibility and can bear a strong impact. We can support OEM and ODM
4. This product is known for its system reliability. It can perform the same task endlessly in the same way without loss. Our products mainly include rod seals, piston seals, scraper seals, rotary seals, rubber seal products and spring seals
5. The product can last for a long time. It has passed the fatigue test, except for continuous operation response, its transient regimes are analyzed as well (start-up, short circuit, etc.). DMS Seals provides professional design and production of high-grade o-ring seals

1. Installation Recommendation 

2. 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.

3. Standard materials

Sealing ring: filled PTFE

O-Ring: NBR / FKM

Back-up ring: POM / PA

4. 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

5. Installation Dimensions

Nominal Size of Packing, and Housing dimensions			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 Features
1. Dms Seals Technology Co.,limited has a full set of advanced production and testing equipment.
2. Our goal is to provide clients with the best product solution and help their businesses grow. We attach importance to clients' problems and requirements and develop a strong and effective solution that works perfectly in their markets. Get an offer!