Hard Black Brown Flat Gasket AS568 90A Silicone O Ring

Product Specification

Low Price OEM Size Customized Flat Silicone Rubber Sheet Gasket Rubber O Ring

Applied industry:

extensively used in chemical industry, petroleum industry, medical technique, food industry, sewage-disposal industry, steel industry, semi-conduct industry and so on.

Applied equipment:
mechanical sealing, pressure vessel, gas compressor, reaction vessel, heatexchanger, boiler, filter and so on.

Main advantage:
1) excellent anti-chemical character. It almost applies to all mediums.
2) temperature range is very wide.
3) anti oil function is very good.
4) long service life.

Operation conditions:
Pressure:<50MPa
Temperature:-20°C ~ 220°C

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.

FKM, (Fluorocarbon)

*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.

PU (Polyurethane)

*Service Temperature

-45 to 120 °C

*Application

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 O-Rings

* Service Temperature

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).

* Application

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.

Our Service

1) Your Inquiry Will Be Replied Within 2 Hours During Working Time,Within 24hours When Rest Time.

2) Our Working Time Is 7.30 AM --17:30 PM,Monday To Saturday.

3) General Samples Time Can Be Arranged Within 2--5days.

4) Orders Will Be Produced Exactly As Request And Approved Samples.

5) When Mass Production,We Send Photos To Show The Production Line.And Confirm The Estimate Time Again.

6) At The End Of Mass Production,Photos And Samples Will Send To You For Approval.You Can Arrange The Inspection.

7) Before Shipment,Our QC Will Have Inspection To Make Sure The Quality.

8) We Always Try Best To Ensure Every Order To Delivery In Time.

Payment Terms

1) T/T,Cash,L/C.

2) 30% Deposit,70% Balance Before Shipment.

3) Lead Time: 15 Days After Received Deposited For 2tons.

4) Delivery Way: By Sea,By Air, By EMS,DHL,UPS,TNT,FedEx.

Packing & Delivery

For Sample: By EMS,DHL,UPS,TNT,FedEx

Around 5--7 Working Days To Arrive

For Bulk Order:

1. Qty Of 2tons,Within 15 Days.

2. Via Sea

3. Delivery Time:we Will Finish Production In 15days For 2tons.

4. For 20 GP,May Nee Around 30days.

Our Company