Gold Member Since 2016
Audited Supplier
Hebei Saixuan Import & Export Trading Co., Ltd.

O Ring, Seal, Rubber Seal manufacturer / supplier in China, offering As568 FKM FPM Viton Ffkm NBR HNBR Silicone EPDM O-Ring, Hammer Union Seals (Lip Seals) for Oilfield, 1502 Hammer Union Seals API 1′′/1.5′′/2′′/3′′/4′′/5′′/6′′/8′′ and so on.

(/ )

Supplier Homepage Product O-rings&O-ring Kits As568 FKM FPM Viton Ffkm NBR HNBR Silicone EPDM O-Ring

As568 FKM FPM Viton Ffkm NBR HNBR Silicone EPDM O-Ring

FOB Price: US $0.01 / Piece
Min. Order: 1,000 Pieces
Min. Order FOB Price
1,000 Pieces US $0.01/ Piece
Get Latest Price
Port: Tianjin, China
Production Capacity: 1000000pieces/Day
Payment Terms: L/C, T/T, Western Union, Paypal

Request a custom order and have something just for you!

Send Customized Request
Basic Info
  • Model NO.: 5A, 5B, 5C
  • Application: Hydraulic Oil, Water,Pump Ect.
  • Performance: Corrosion
  • Standard: Standard, Nonstandard
  • Color: Blue,Brown,Black or Other Colors You Need
  • Hardness: 50~ 90 Shore a
  • Service: OEM or Stock
  • Company Type: Manufacturer
  • Quality Assurance: SGS,Ce,CIQ,RoHS...
  • Transport Package: PP Bag/Cartons or Customized
  • Origin: Hebei China
  • Material: NBR, FKM,Silico
  • Type: Oil Seal
  • Shape: O-Ring
  • Working Medium: Lubricant,Oil,Water
  • 3D/CAD Drawing: Accept
  • Function: Anti Water and Oil
  • Trial Order: Acceptable
  • Factory Visit: Avaiable
  • Trademark: SAIXUAN
  • Specification: AS568
  • HS Code: 8484200010
Product Description
As568 FKM FPM Viton Ffkm NBR HNBR Silicone EPDM O-Ring
DetailSilicon o-ring seal kit
MaterialNBR and NBR cloth
(Temperature<100ºC)
Working
Temperature
NBR
(-30ºC~ +100ºC)
FKM and FKM cloth
( Temperture>180ºC)
FKM
(-20ºC~  +250ºC)
Tensile StrengthNBR (14 Mpa)
FKM (12Mpa)
Hardness50~90 shore A
Working MediumLubricant, oil, water
ColorBlack or other colors you need
SizeCustomize
3D/CAD drawingAccept
UsageUsed in static applications or in dynamic applications where there is relative motion between the parts and the O-ring
ScopeRotationg pump shafts, Hydraulic cylinder piston
ShippingDHL, UPS, FEDEX, TNT, air freight, sea shipping or based on customer arrangement

Description
Product group: OR O-rings
Material
NBR 70   
Colour
NBR 70, black
Tolerances: as per DIN 3771 / ISO 3601
Materials with approvals and/or conformity tests for special applications (gas, drinking water, foodstuffs) are available, as required.

Operational application limits 
Temperature EPDM 70: -45 °C to +130 °C
Temperature FKM: -15 °C to +200 °C
Temperature HNBR 70: -30 °C to +150 °C
Temperature NBR: -30 °C to +100 °C
Temperature VMQ 70: -55 °C to +200 °C

Function
O-rings are closed circular rings of circular cross-section. They are made through vulcanisation from form tools as a complete ring. The sealing function of the O-ring is achieved by the deformation of the cross-section when installed and compressed in its housing. The O-ring can be compressed either radially or axially in its installation housing. In operating conditions the pressure exerted by the media reinforces the sealing function, as under pressure the elastomer material functions as a non-compressible fluid.

Applications
O-rings are used predominantly for sealing non-moving machine and system components (static application) and media in liquid and gas form, e.g. flange and cover seals, threaded tube connections and the cylinder head and cylinder bottom for hydraulic cylinders. Under certain conditions it is also possible to use O-rings with reciprocating, rotating and helical movements (dynamic application). If the installation housing is finished properly, the construction design is right and the proper materials are selected, it is possible for pressures of up to 1000 bar to be sealed, with the use of back-up rings, where required. O-rings are used in many sectors, such as the fields of hydraulics, pneumatics, vacuum applications, the fittings industry, the automotive industry and in plant and mechanical engineering.

Installation housings
The installation housings (grooves) for O-rings should if possible be produced with right angles and should be processed with care. Burrs, scratches and notches should be avoided. The dimensions for the required depth and width of the groove depend on the particular application and cross-section. You will find recommendations for construction and dimension tables in our O-Ring Catalogue. To facilitate installation, a variety of surface coatings can be supplied on application.

Selection and design 
To ensure sound sealing effect, O-rings should be selected to offer the largest possible cross-section. The hardness of the O-ring material selected depends on the pressure, gap widths, type of sealing (static/dynamic) and the surface quality of the machine parts. For standard applications we recommend a material hardness of 70 Shore A. Careful consideration should also be given to the correct compression, elongation or compaction and the degree to which the groove in the installation housing is filled.

Suitability for specific media
EPDM
Good resistance to hot water and steam, detergents, caustic potash solutions, silicone oil and greases, many polar solvents, and many diluted acids and chemicals, along with a high level of ozone resistance. EPDM materials are totally unsuitable for use with all mineral oil products (lubricants, fuels).

FKM
Good chemical resistance to mineral oils and greases, synthetic oils and greases, engine, transmission and ATF oils to approx. +150°C, fuels, non-flammable hydraulic pressure fluids HFD, aliphatic, aromatic and chlorinated hydrocarbons, water to max. +80°C, excellent resistance to weathering, ozone and ageing, very low gas permeability (and therefore excellent for vacuum application) and resistance to a wide range of chemicals.

HNBR
HNBR is obtained by fully or partially hydrogenating NBR. It leads to considerable improvement in resistance to heat, ozone and ageing, and gives it very good mechanical properties, e.g. good resistance to wear. The media resistance compares to that of NBR. HNBR has a good resistance to some refrigerants. The temperature application range is from -30°C to +150°C.
NBR
Good chemical resistance to mineral oils and greases, hydraulic oils H, HL, HLP, non-inflammable hydraulic pressure fluids HFA, HFB, HFC to approx. +50°C and water to max. +80°C 

VMQ
Good resistance to water (up to 100 °C), aliphatic engine and transmission oils, animal and plant oils and fats. VMQ is generally not resistant to fuels, aromatic mineral oils, steam (short term up to 120 °C possible), silicone oils and greases, acids and alkaline compounds.

Installation
Avoid damaging the O-ring during installation, as this will cause leakage. Observe the following:
-  The O-ring must not be expanded to its elongation limit.
-  Edges must be burr-free, radii and angles applied smoothly.
-  Dust, dirt, metal chips and other particles must be removed.
-  Tips of screws and installation housings for other sealing and guiding elements should be covered by an assembly sleeve.
-  A suitable grease to be applied to the assembly surfaces and O-rings.
-  Elastomer materials are made smoother if they are heated in oil or hot water to approx. 80 °C. This makes it easier to stretch the O-ring for assembly.
-  Any assembly tools used, such as expansion mandrels or sleeves, should be made of a soft material (e.g. POM) and not have any sharp edges.
-  The O-ring should not be rolled over assembly surfaces. Ensure the O-ring is not twisted as it slots into the groove.
 As568 FKM FPM Viton Ffkm NBR HNBR Silicone EPDM O-Ring
 
 
Send your message to this supplier
Avatar
Ms. Lisa Guo
Sales Manager
*From:
To: Ms. Lisa Guo
*Message:

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now