Double acting seals, the sealing effect is achieved by the deformation of the section of the O-Rings, and the deformation is determined by the depth of the installation groove. Under pressure, the O-ring has a large surface tension like liquid, used for static sealing more. It is only recommended for better conditions in dynamic applications. System lubrication, pressure, temperature, sealing clearance, speed, medium and surface quality of metal parts determine the service life of O-Rings. It is not recommended if the lubrication is not sufficient during rotary motion.
O Ring description.
NBR(nitrile butadiene rubber)
*Service Temperature For NBR the service temperature can be designed from -55 C to 100 C or up to 130 C depending on differenacrylonitrile content and formula.
*Application NBR compounds have excellent resistance to abrasion, non-polar oils and solvent, water and permeation (higher acrylonitrile content will be better). NBR also can be used in conditions of dilute acids, alkalis and salt solution at low temperatures.
*Service Temperature For general type FKM the service temperature is better limited to approximately from -26 C to 232 C in static applications, though the service temperature can arrive to 275 C at short time In dynamic applications, it is suitable between -15 C and 200 C.
*Application Because FKM has excellent resistance of high temperature, oil, solvent, flame, chemicals and weathering, it is usually applied in automotive, chemical processing, aerospace and many other industries.
Silicone Rubber (Q, MQ, VMQ, PVMQ)
*Service Temperature For Silicones the service temperatures are from -60 C to 225 C. Some special types can be used in extreme temperature up to 300 C and down to -100 C.
*Application Silicone rubber performs well under environmental and temperature extremes. It is usually applied in automotive and aerospace industries where flexibility and longevity are important. It is also a suitable material for parts that need FDA approval for food handling equipment and appliances.
-45 to 120 °C
PU displays higher mechanical strength, high abrasion, wear and extrusion resistance, high pressure load capacity, as well as a high tear and elongation at break resistance.
PU is suitablefor for application in mineral oils and greases, hydraulic oils, silicone oils and greases, highly non-flammable hydraulic fluids HFA and HFB and water uo to 50℃.
PTFE's mechanical properties are low compared to other plastics, but its properties remain at a useful level over a wide temperature range of -100°F to +400°F (-73°C to 204°C).
PTFE is the common sealing material used for making wear ring, backing-up ring, o ring, gasket, etc. It can be found in metallurgy machinery, petrochemical machinery, engineering machinery, and light industrial machinery.
Ethylene Propylene Rubber (EPM, EPDM)
*Service Temperature For EPDM the service temperature can be designed from -55 C to 125 C or up to 150 C (for peroxide cured systems). *Application In phosphate-ester based hydraulic fluids and glycol based brake fluids systems Ethylene Propylene Rubber is good choice for sealing parts. EPDM is also is usually used in hot water or steam applications up to 150 C.
We recommended using a vernier caliper for measurement. Accurate to 0.01mm.
In addition to the standard size of o-ring, we can also custom non-standard size as required.
1. Preparing time: we need several days to prepare your order or sample, production time will depend
on the quanlity of your order.
2. Shipping time: we will do strict quality control tests and pack the items carefully before shipment.
we support various shipping ways to delivery your order with a best price.
Please know that this is a reference time, we will provide the best shipping
service for you.
Express Mail Service
1. Established in 2013. 2.Passed ISO9001-2000, TS16949, and CE. 3.Supply OEM/ODM manufacturing. 4.Our product such as Silicone Kitchen Tools, Silicone Promotion Gifts, Silicone O-Ring, Silicone Tubes and Silicone Auto Spare Parts have been exported to many country like USA, German, Sounth American. 5.1 Hour drive to Guangzhouo or Shenzhen Airport.
1) Are you factory or trading company?
We are manufactor responsilble for R&D, production and sales.
2) Can you accept small quantity order?
Surely we can accept it and we will value each of our clients.
3) Why do you choose us?
You will find a good supplier when you received the sample from us. We can support free sample service for testing quality.
4) Can you customized color for client?
Yes, we customized any color according to pantone color.
5) Can you add the customer's logo on the products?
Yes, we can add your logo on products with print, debossed, embossed or heat-trasfer.
6) What's your common package?can be custom?
Our common package is opp bag, colorful box, kraft box, pvc box etc. we can also custom package according to your package artwork.
7) What is the lead time?
Our sample time will be 3-5 days and the lead time for 1000 pieces will be 7-10 days. If you have urgent orders, you can discuss with our sales person for prioritized production.
8) What is your payment terms?
We can accepteT/T, Bank transfer,PayPal, Alibaba assurance and LC, if you need other payment terms, please discuss with our sales manager.