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Prices are current as of Wednesday, 22/05/2019.
Prices are GST exclusive. Tax is added at checkout.

$17.00
Availability: 4 In Stock
Product Code: VOR-V-KF16

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Depending on pressure on the O-ring, environment and service temperature, O-rings need to be renewed to ensure leak-free seals. Use the O-rings to service the NW/KF connections on your vacuum systems.

Viton is well known for its excellent resistance to heat and to aggressive fuels and chemicals. Used for high vacuum applications, temperature range from -54 deg. C to 250 deg. C. Viton is a registered trademark of DuPont Performance Elastomers.

Silicone is a popular O-Ring which is commonly red in colour and is used for chemical applications. Made of elastomeric materials made from silicone, oxygen, hydrogen and carbon. Excellent material for static service at extreme (hot or cold) temperatures. Outstanding flex and fatigue life. Very good for ozone and UV radiation as well as for resistance to fungal and biological attack. Limitations: Avoid chlorinated solvents, aliphatic and aromatic hydrocarbons and petroleum oils. Silicones are generally very permeable to gases and have poor physical strength and abrasion resistance. Temperature Range from -85 deg. C to 232 deg. C. LPCVD/Oxidation, Dry Etch, Resist Stripping.

Buna-N, also known as Standard Nitrile, is used for non-critical and low vacuum applications, temperature range from -54 deg. C to 150 deg. C. Excellent resistance to petroleum-based oils and fuels, water and alcohols. Nitrile also has good resistance to acids and bases, except those with a strong oxidising effect. Limitations: Avoid highly polar solvents (Acetone, MEK, etc.) and direct exposure to ozone and sunlight.

Size ID (mm) [B] OD (mm) Thickness (mm) [A]
KF16 18.5 29 5
KF25 28.5 37 5
KF40 41.5 50 5
KF50 55 65 5
O-ring Materials Comparison Table
Property Buna-N Viton ; Silicone
Common Name Nitrile Fluor Elastomere Silicone Rubber
Tear Resistance Good Good Good
Abrasive Resistance Good Good Poor
Ozone Resistance Poor Excellent Excellent
Weather Resistance Fair Excellent Excellent
Heat Resistance Fair Excellent Excellent
Chemical Resistance Fair Excellent Good
Oil Resistance Poor Excellent Poor
Acid Resistance
Fair
Excellent
Good
Alkali Resistance
Good
Good
Fair
Steam Resistance
Fair
Fair
Poor
Minimum Usable Temperature
-54 deg. C
-54 deg. C
-85 deg. C
Maximum Usable Temperature
150 deg. C
260 deg. C
232 deg. C
Color
Black
Black / Brown
Red
Impermeability
Fair
Good
Poor
Tensile Strength
Good
Good
Poor
Cost
Low
High
Medium

O-rings for locating rings

Shipping

Orders with items in stock are packed within 24 hours. We ship with our best choice of courier, depending on goods ordered and shipping address provided.

Location

Standard delivery

Express delivery

Townsville/Local

Next day

N/A

Queensland

2-3 business days

N/A

NSW

4-10 business days

2-3 business days

SA/Tas/Vic/WA

6-14 business days

2-3 business days

Overseas

N/A

5-14 business days

*Note: Delivery times are as provided by our carriers and are estimates only. Delays may occur during peak periods, and due to factors outside the carriers' control.

Standard shipping is $15 in Australia (free on orders over $200). Add $5 to ship Express (under 2kg only)

Pickup

Order online and collect from our warehouse in Townsville.

Location

Freight Charge

Ready for collection

11 Carlton Street, Kirwan

$0

Once invoice has been emailed
(Less than 1 business day)



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