DMS SEALS TECHNOLOGY CO.,LIMITED
The Professional Sealing Solution Supplier(O Ring Suppliers & Oil Seal Manufacturers).
DMS Seals - Hydraulic Seals and Oil Ring Seals Manufacturer & Supplier
1. Installation Recommendation
2. Installation Sizes
Rod Diameter  | Outer Diameter  | Groove Width  | Install Chamfer  | Radius  | Radial Clearance S max.  | ||
d f8  | D H8  | L+0.2  | L1  | R1  | 10MPa  | 20MPa  | 40MPa  | 
50-69.9  | d+15.0  | 7.5  | 5.0  | 0.4  | 0.5  | 0.4  | 0.3  | 
70-149.9  | d+20.0  | 10.1  | 6.0  | 0.4  | 0.7  | 0.5  | 0.4  | 
200-244.9  | d+25.0  | 12.5  | 8.5  | 0.4  | 0.8  | 0.6  | 0.5  | 
245-519.9  | d+30.0  | 15.0  | 10.0  | 0.8  | 0.9  | 0.7  | 0.6  | 
520-769.9  | d+35.0  | 17.5  | 13.0  | 1.2  | 1.0  | 0.8  | 0.7  | 
770-1500  | d+40.0  | 20.0  | 15.0  | 1.2  | 1.0  | 0.8  | 0.7  | 
3. Application and properties
Applied for larger diameter piston rods and heavy-duty hydraulic rod sealing system in hard working conditions. High pressure resistance, excellent resistance to gap extrusion, wear-resisting.
4. Standard materials
Sealing ring: filled PTFE
O-Ring: NBR / FKM
5. Working Conditions
Working Conditions  | ||||
Diameter Range  | Pressure Range  | Temperature Range  | Speed  | Medium  | 
3 - 1600mm  | 0 - 60MPa  | -30℃ +100℃  | 5 m/s  | hydraulic oil, flame retardant liquid, water, gas  | 
6. Installation Dimensions
Outer Dia.  | Groove Width  | Order No.  | |
d f8  | D H8  | L+0.2  | |
50 60 70  | 65 75 85  | 7.5 7.5 7.5  | GSJ-W50*65*7.5 GSJ-W60*75*7.5 GSJ-W70*85*7.5  | 
75 80 100  | 95 100 120  | 10 10 10  | GSJ-W75*95*10 GSJ-W80*100*10 GSJ-W100*120*10  | 
110 115 120  | 130 135 140  | 10 10 10  | GSJ-W110*130*10 GSJ-W115*135*10 GSJ-W120*140*10  | 
130 140 145  | 150 160 165  | 10 10 10  | GSJ-W130*150*10 GSJ-W140*160*10 GSJ-W145*165*10  | 
150 160 170  | 170 180 190  | 10 10 10  | GSJ-W150*170*10 GSJ-W160*180*10 GSJ-W170*190*10  | 
175 180 200  | 195 200 220  | 10 10 10  | GSJ-W175*195*10 GSJ-W180*200*10 GSJ-W200*220*10  | 
230 240 250  | 255 265 275  | 12.5 12.5 12.5  | GSJ-W230*255*12.5 GSJ-W240*265*12.5 GSJ-W250*275*12.5  | 
260 265 270  | 285 290 295  | 12.5 12.5 12.5  | GSJ-W260*285*12.5 GSJ-W265*290*12.5 GSJ-W270*295*12.5  | 
280 290 300  | 305 315 325  | 12.5 12.5 12.5  | GSJ-W280*305*12.5 GSJ-W290*315*12.5 GSJ-W300*325*12.5  | 
CONTACT US
TEL: +86-757-86235767
Contact Person: Teresa Chen
E-mail:
dms@dmsseals.com
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