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FKM Food Grade Orings Waterproof , Industrial O Ring Excellent Chemical Resistance

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Dongguan Ruichen Sealing Co., Ltd.

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FKM Food Grade Orings Waterproof , Industrial O Ring Excellent Chemical Resistance

Brand Name : ORK

Model Number : Customized

Certification : FDA,ROHS,ISO9001,TS16949

Place of Origin : Guangdong,China

MOQ : 100 USD

Price : 0.006 ~ 7 USD / PCS

Payment Terms : L/C,Paypal, T/T

Supply Ability : 30000000 PCS / Month

Delivery Time : 7-45 work days

Packaging Details : PE inside , Carton Outside

Material : FKM

Hardness : 30 ~ 90 shore

Color : Black Brown Green RED

Heat Range : -40 ~180 ℃

Acild Resistant : Acceptable

Size : Any size acceptable

Lead time : 5-8 work days

Standard : AS568 BS1516

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FKM Food Grade Orings Waterproof , Industrial O Ring Excellent Chemical Resistance

FKM® or fluorocarbon elastomers were first introduced in the mid 1950's. Since then they have become of major importance in the seal industry. Due to its good chemical resistance, high temperature range and its low compression set, fluorocarbon rubber is the most significant single elastomer development in recent history. The working temperature range ifor FKM® is considered to be -15 to +400 degrees F (-29 to +204 degrees C), but it will take temperatures up to 600 degrees F (316 degrees C) for short periods of time. Du Pont's Kalrez® is normally recommended up to 500 degrees F (260 degrees C). On the low end, FKM® compounds have been known to seal at -65 degrees F (-54 degrees C) in some special static applications, however the normal low temperature limit is -15 degrees F (-26 degrees C). Fluorocarbon 0-rings should be considered for seal use in aircraft, automobile, scientific instruments and other mechanical devices requiring maximum resistance to elevated temperature and to many functional fluids. They are widely used in diffusion pumps on vacuum systems and on vacuum flanges on mass spectrometers and electron microscopes. FKM® is recommended for most applications and Kalrez® is only used where the additional temperature range can be justified by the increased cost.

FKM® and Kalrez® are recommended for:

Petroleum oils. Di-ester base lubricants (MIL-L-7808, MIL-L-6085).
Silicate ester base lubricants (MLO 8200, MLO 8515, OS-45.)
Silicone fluids and greases.
Halogenated hydrocarbons (carbon tetrachloride, trichloroethylene).
Selected phosphate ester fluids. Acids.

FKM is not recommended for:

Ketones (MEK, acetone). Skydrol fluids.
Amines (UDMH), anhydrous ammonia.
Low molecular weight esters and ethers.
Hot hydrofluoric or chlorosulfonic acids.

ORIENTAL STAR TEST REPORT
V7501 COMPOUND
ASTM D2000 M2HK 710 A1-10 B37 B38 EO78 EF31 F13 Z=Hardness 75±5
Press Cure
Sheet : 5min 175℃
Button : 10 min 175℃
ORIGINAL PROPERTIES	SPECIFICATION	TEST RESULT
HARDNESS SHORE A	75°±5	73
TENSILE STRENGTH, MPA, MIN	10	10.9
ULTIMATE ELONGATION, ％, MIN	150	213
SPECIFIC GRAVITY (g/cm3)	1.85+/-0.08	1.87

HEAT RESISTANCE 70 H . AT 250℃(A1-10)
CHANGE IN HARDNESS, POINTS	+10	+5
CHANGE IN TENSILES STRENGTH, %	-25	+26
CHANGE IN ULTIMATE ELONGATION,MAX %	-25	-18
COMPRESSION SET, MAX, 22H AT 175℃ (B37 )	50	21.5

COMPRESSION SET, MAX, 22H AT 200℃ (B38 )	50	28.3

FLUID RESISTANCE FUEL.101. 70H AT 200℃ (EO78)
CHANGE IN HARDNESS, POINTS	-15~+5	-13
CHANGE IN TENSILES STRENGTH, MAX %	-40	-20.7
CHANGE IN ULTIMATE ELONGATION,MAX %	-20	-8.3
CHANGE IN VOLUME %	0~+15	+10.5

FLUID RESISTANCE FUEL C, 70H AT 23℃(EF31)
CHANGE IN HARDNESS, POINTS	±5	-4
CHANGE IN TENSILES STRENGTH, MAX %	-25	-20.2
CHANGE IN ULTIMATE ELONGATION,MAX %	-20	-18.6
CHANGE IN VOLUME %	0~+10	+5

ORK is a leading supplier of FKM® O-rings and custom molded seals. We offer both genuine FKM® and standard fluorocarbon materials for general purpose and high performance applications. Selecting the type of FKM® that best fits your application is important, but it isn't complicated, and help is available from ORK. We also offer gaskets made out of FKM®

Product Tags:

FKM oring

fluorine rubber o ring

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