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Packing, Rider, Piston and Wiper
Rings
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Type 313 Wiper Ring
Tangent to the Rod Wiper Rings.
Available in Iron, Bronze, or Babbit (as shown)
This type 313 oil wiper ring is used in reciprocating compressors to
prevent oil from the crankcase traveling along the piston rod with no
clearance at the bore. Each ring is an independent seal with a deep
wiping edge and wide oil groove at the I.D. The oil groove acts as a
second wiping edge and uses drilled holes to allow the wiped oil to
drain away from the rod. This wiper ring has a tapered wiping edge on
the face of the ring to more effectively strip the oil coating from the
piston rod. |
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Type 320 Radial Wiper Rings
Available in Iron, Bronze, or Babbit
The type 320 radial oil scraper ring is designed to be used pinned in
sets as a wiper assembly. Its function is to wipe oil from the piston
rod and prevent it from traveling into the packing area. The 320 design
includes the unique tapered wiping edge, deep oil groove in the bore and
large oil ports to allow rapid removal of oil wiped from the rod. It is
utilized in many gas and process compressors depending on the design of
the compressor manufacturer.
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Joy Compressor Parts
We have a complete line of compressor piston rings, bull rings, wiper
rings and packing for all standard JOY air compressors. Each product is
manufactured from quality materials and incorporates special features to
maximize performance. The Teflon piston rings and rider rings utilize
AVA17 glass filled Teflon molded and heat treated to increase material
wear properties and extend ring life. Each part is individually
inspected to ensure quality of manufacture. |
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One Piece Piston Ring
Piston Rings are available in
Angle Cut-TYPE 410, Butt Cut-TYPE 412, or Step Cut- TYPE 411
The standard one piece piston ring is utilized by itself or in
combination to seal gases and liquids in a variety of application. Ring
design and materials vary based on the product sealed, temperature,
pressure, and condition of the service. These piston rings are for all
applications from standard air using one piece angle cut rings to high
pressure specialized gas services where pressure balancing and special
materials are required. Proper clearance design and selection of ring
material are critical to provide quality performance and extended ring
life. |
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Solid Rider- Type 450
Solid riders or wear rings, Type 450, are required where the ring groove
on the piston travels out into the valve area or cylinder counter bore.
The solid, stretch on ring is designed to stretch over the piston
diameter and then fit tightly on the ring groove. Proper strain and
memory considerations are important to ensure that the solid ring
remains tightly on the piston during operating temperatures and
pressures. Pressure relief designs are available in high temperature
applications where riders have a tendency to come loose on the piston in
service. This allows gas, trapped under the ring, to bleed away, thus
eliminating rapid wear of the ring and possible breakage |
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Split Rider Ring-Type 430
The rider split or wear ring is part of all piston designs where there
is no lubrication or the possibility of loss of lubrication exists
during operation. New process compressors have rider rings included
whether the compressor is lubricated or non-lubricated. The rider
supports the weight of the piston and prevents contact with the cylinder
wall It is designed taking into consideration the weight of the piston
and rod, the physical properties of the ring material, the operating
conditions and the desired ring life. The type 430 split rider ring is
recommended unless the ring travels out into the counter bore area. Side
and face grooves can be added to ensure the rider ring does not act as a
piston ring. The large surface area would generate significant
frictional heat Therefore grooves are necessary to prevent the ring from
sealing. The split rider is available in step, angle or |
Please call or fax our office for pricing and availability. (661) 257-6026
Fax: (661) 257-4706
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