Valve Stem Seals
Reducing Emissions One Seal At A Time.
The first positive valve stem seal was a Dana invention in 1958. Whether it’s an automotive
gasoline engine or a heavy-duty diesel engine, Dana’s flexibility allows it to seal applications
ranging from line trimmers to locomotives.
Valve Stem Seals
Reducing Emissions One Seal At A Time
Valve stem seals are designed to provide
a precise amount of lubrication at the
interface between the valve stem and the
valve guide. Excessive oil in this area can
lead to higher hydrocarbon and particulate
emissions, fouling exhaust after-treatment
devices over time. This is not a concern
with a Victor Reinz® valve stem seal.
Each valve stem seal design is evaluated
Innovative Designs Testing Yields Benefits
on an oil-metering rate bench test to Dana’s new AllBond™ patented seal design technology Each Victor Reinz® valve stem seal design is evaluated on an
ensure optimum oil-metering rate for the combines the benefits of a high-port pressure design with oil-metering rate bench test to optimize valve train durability,
best valve train durability, oil consumption, a one-piece construction. oil consumption, and emissions balance.
and emissions balance.
Dana’s proprietary fluoroelastomer
compounds are mixed in-house and fully
tested, allowing ultimate control over quality
and performance. Each valve stem seal is
taken through a state-of-the-art molding
and assembly process. Every application
uses custom designs and processes that best
meet customer goals of cost, performance,
and timing. Prototype and production parts
are made in the same facility to ensure a Finite Element Analysis (FEA) Using FEA coupled with Computational Fluid Dynamics (CFD), Dana simulates oil leakage through
smooth launch to high-volume production. a valve stem seal, which involves complex Fluid Structure Interaction (FSI) between a moving valve stem, oil, and the rubber seal.
Dana’s more modern valve stem seals Product Features Product Benefits
are all made of a fluoroelastomer and • F luoroelastomer sealing element • Reduced emissions
possess superior oil and heat resistance.
Material research is continuous to ensure •C
ase-hardened valve spring seat • Improved oil economy
materials are compatible with the latest (integral seals) • Design creativity
industry oil specifications. • P recise oil metering • Increased component life
•C
ustom design solutions • F EA
Dana’s new AllBond patented seal design
™
technology combines the benefits of a •M
ultiple rubber colors for product
high-port pressure design with a one-piece differentiation
construction. The benefits are robust •D
iverse product offering
performance through steel reinforcement
• E xclusive designs for high-port pressures
and lower cost using a reduced number
of components.
dana.com/ptg/contact
Application Policy
Capacity ratings, features, and specifications vary depending upon the model and type of service. Application approvals must be obtained from Dana; contact your representative for application approval.
We reserve the right to change or modify our product specifications, configurations, or dimensions at any time without notice.
©2017 Dana Limited SEA81_DPTG61324_042017
