Place of Origin:
Guangdong,China
Brand Name:
ORK
Certification:
FDA,ROHS,ISO9001,TS16949
Model Number:
Customized
ORK pioneered the design and production of four-lobed seals with the Quad-Ring® Brand seal design. These seals are used today around the world for a wide variety of static and dynamic sealing applications.
Avoiding Spiral Twist
To minimize breakaway friction, an O-Ring groove must be wide enough to allow rolling or twisting of the seal. In the long stroke of a reciprocating seal application, this twisting action can strain and eventually tear the rubber, causing a failure mode known as spiral twist.
To prevent spiral twist, the Quad-Ring® Brand seal's four-lobed configuration is designed to withstand the distortion and extrusion often caused by high or pulsating pressure. To accommodate these forces, a Quad-Ring® Brand seal uses a narrower groove than a comparable O-Ring seal.
Longer Seal Life
Because less squeeze means less friction with the four-lobe design, seals last longer. Therefore, equipment in which the Quad-Ring® Brand seal is installed will operate longer and require less maintenance.
No Parting Line on Sealing Surface
Unlike O-Rings, where parting lines are on the sealing surface, Quad-Ring® Brand seals' parting lines lie between the lobes, away from the sealing surface. This design eliminates the problems of leakage resulting from a parting line's irregular surface.
| Materials | ||
| Materials & Temperature Ranges |
Fluid Examples | |
| Suitable With | Not Suitable With | |
| Nitrile (NBR) -40ºC to 120ºC -40ºF to 248ºF |
Petroleum Oils Hydraulic Oils Water |
Brake Fluids Ketones Phosphate Esters Strong Acids (H2S) |
| Hydrogenated Nitrile (HNBR) -40ºC to 150ºC -40ºF to 302ºF |
Petroleum Oils H2S (10%) Water |
Polar Solvents Brake Fluids Strong Acids |
| Ethylene Propylene(EPDM) -50ºC to 150ºC -58ºF to 302ºF |
Brake Fluids Water/ Hot Water Steam |
Mineral Oils Ozone at High Temperatures |
| Fluoroelastomer (FKM) -20ºC to 200ºC -4ºF to 392ºF |
Petroleum Oils Silicone Oils Gasoline |
Brake Fluids Ammonia Gas Steam |
| Perfluoroelastomer (FFKM) -20ºC to 320ºC -4ºF to 608ºF |
Most Media | Liquid Sodium & Potassium Fluorinated Solvents & Refrigerants |
| Silicone (VMQ) -70ºC to 220ºC -94ºF to 428ºF |
Vegetable Oil Water Ozone |
Acids &Alkalis Hot Water & Steam (>120ºC) |
| Neoprene (CR) -40ºC to 120ºC -40ºF to 248ºF |
Ammonia Refrigerants Ozone |
Aromatic Hydrocarbons Polar Solvents Toluene |
| PTFE -200ºC to 280ºC -148ºF to 536ºF |
Most Media | Fluorine Molten Alkali Metals Strong Oxidizing Agents |
| Polyurethane (PU) -40ºC to 90ºC -40ºF to 194ºF |
Most Petroleum Oils | Brake Fluids Hot Water Steam |
| PEEK -70ºC to 260ºC -94ºF to 500ºF |
Most Media | Hydrochloric, Nitric & Sulfuric Acids |
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