APG Hydraulic Seals Catalog

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Vee Packings
APG Vee Packings are multiple-lip (chevron) seals comprised of a
group of endless rings and are popular for sealing rods and pistons.
They can be used for low or high pressure applications and with single
or double acting cylinders.
Female Adapter (Top)
APG presently stocks Female and Male Adapters (top and bottom) in
fabric reinforced Nitrile and Nylon. V-Rings (center rings) are stocked
in fabric reinforced Nitrile and in homogeneous 90 Durometer Nitrile.
(Call for availability of other compounds) In general, fabric Vees are
for high pressure, and homogeneous Vees are for low pressure. The
selection of fabric or homogeneous compounds should be made on the
basis of operating pressure, temperature, and the type of gaseous or
fluid medium with which the packing must function.
V-Ring (Center Ring)
Male Adapter (Bottom)
Installation Data
Properly installed Vee Packings will generally outperform other lip-type seals. They are always installed in sets. Each set
contains a number of V-Rings (based upon the pressure) plus male and female adapters.
The V-Rings in each set are referred to as pressure rings. Refer to the table below to determine the number of V-Rings per
set based on solid rings. This table applies to the majority of installations. There will be exceptions, depending upon special
operating conditions, where the table guidelines do not apply.
Recommended Number of V-Rings per Set
(Based on Solid Rings)
Pressure
(PSI)
Fabric Reinforced
Nitrile
Zero to 500 3
500 to 1500 4
1500 to 3000 4
3000 to 5000 5
5000 to 10,000 6
10, 000 and over —
Standard Vee Packings use a 90° included angle (commonly referred to as 45°) measured on one side only.
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