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How are O-ring sizes specified?

How are O-ring sizes specified?

O-rings are measured in millimeters. Determine the inside diameter. Use a ruler or calipers to measure from one inner edge to another. To measure the outside diameter, use a ruler or calipers to measure from one outer corner of the O-ring to the other outer corner.

What is a Viton O-ring?

Viton® O-Rings Viton is a brand of synthetic rubber and fluoropolymer elastomer commonly used in O-rings and other molded extruded goods. Viton is a registered trademark of DuPont and is sometimes generically referred to as FKM.

What is the smallest size O-ring?

US seal manufacturer Precision Associates Inc has successfully manufactured what it believes is the world’s smallest O-ring. The moulded O-ring has a cross-section of 0.15 mm (0.006 in) and an inside diameter of 0.2 mm (0.008 in).

What size is a 212 O-ring?

Specifications for this item

Brand Name Mr O-Ring
Model Number 212
Nominal Inside Diameter 0.859 inches
Nominal Outside Diameter 1-1/8 inches
Nominal Width 0.139 inches

How do you calculate o-ring?

To measure the outside diameter, use a ruler to measure from one outer edge to the other of the o-ring. You can determine the third diameter of the O-ring with 2 diameters using the following equation: Outside Diameter (OD) = Inside Diameter + (2 x Cross Section). Inside Diameter (ID) = OD – (2 x Cross Section).

Are Viton O-rings better?

While both materials are suitable for moderate temperature applications, Viton® is the superior choice for high temperatures. Viton® standard compounds can withstand temperatures up to 446℉, while Buna o-rings can only handle up to 257℉.

How big is a size 0 ring?

(On a device? Best viewed in landscape)

Inside Diameter: Ring Sizes:
MM Inches Numerical (USA, Canada, etc.)
11.6 mm 0.458″ 0
11.8 mm 0.466″ 1/4
12 mm 0.474″ 2/4

What size is a #11 o-ring?

9/16 in
Product Details. Install DANCO #11 O-Rings (10-Pack) on a faucet (not included) to help eliminate leaks and drips at the spout. These replacements O-rings are constructed from durable rubber that withstands harsh chemicals. Inside diameter is 9/16 in.

What size is a 211 O-ring?

Tech Specs

Size Code 211
Cross Section 0.139 in (3.53 mm)
Inside Diameter 0.796 in (20.22 mm)
Outside Diameter 1.074 in (27.28 mm)
Part Number V1007-211

How Do You measure o-rings for replacement?

How to Measure O-Rings

  1. Place the O-ring on a clean, flat, level surface.
  2. Determine the inside diameter by using a ruler to measure from one inner edge to another.
  3. Use a ruler to measure the diameter, from one outer corner of the O-ring to the other outer corner.
  4. Finally, measure the cross-section.

What size ring is N?

(On a device? Best viewed in landscape)

Inside Diameter: Ring Sizes:
MM Inches Alphabetical (Australia, UK, NZ, etc.)
17.1 mm 0.674″ N
17.3 mm 0.682″ N 1/2
17.5 mm 0.69″ O

What is a dash number for o-rings?

O-ring Size Chart

Dash Number Inches mm
ID ID
-004 0.070 1.78
-005 0.101 2.57
-006 0.114 2.90

Are Viton o-rings better?

Is Viton harder than nitrile?

This makes Viton® far superior to Nitrile in these regards. They are also designed to resist most oils and lubricants, more importantly petroleum-based lubricants. Applications: Viton® functions well in different automotive, chemical and appliance-processing industries.

Is Viton better than Teflon?

Viton vs Teflon (PTFE) – Viton offers a greater temperature resistance but falls short of Teflons(PTFE) chemical resistance. Also, Teflon is slightly less thermally resistant but offers much more in the way of non-adhesive properties.

What size ring does a 10 year old wear?

Size 3 to 3 1/2 is most appropriate for kids 6 – 9 years of age, and finally, ring sizes 4 and 5 work well for kids who are 10 and 11.