Product Overview
This Exhaust Valve Reed Shim is a precision-engineered replacement component designed
specifically for Edwards E2S series two-stage, oil-sealed rotary vane vacuum pumps, including the E2S45, E2S65, and E2S85 models. As a critical internal part of the pump's exhaust
mechanism, this reed shim is responsible for ensuring the efficient
and sealed expulsion of gases, preventing backstreaming and
maintaining the pump's specified ultimate vacuum pressure (e.g., 3.0E-03 mbar without gas ballast for the E2S85).
A worn or damaged exhaust valve reed is a common cause of
performance loss in these reliable industrial pumps. This
OEM-quality replacement part is manufactured to meet strict
original equipment specifications, guaranteeing a perfect fit and
reliable operation. It is an essential item for the routine
maintenance and overhaul of these pumps, helping to restore and
maintain their pumping speed and ultimate vacuum performance.
Key Features & Benefits
Precision Fit: Manufactured to exact Edwards OEM dimensions and tolerances for a
perfect fit and seamless operation within E2S45, E2S65, and E2S85
vacuum pumps.
Restored Pump Performance: Replaces worn or damaged valve reeds to help the pump achieve its
specified ultimate vacuum pressure and maintain consistent pumping speed, directly addressing issues
like the inability to reach base pressure.
Durable Construction: Made from high-quality, fatigue-resistant spring steel or similar
durable material, designed to withstand the continuous mechanical
impact and chemical environment inside the pump's oil reservoir,
ensuring a long service life.
Prevents Oil Backstreaming: A properly functioning exhaust valve is crucial for preventing oil
and vapor from flowing back into the pump chamber and the vacuum
system, protecting your process and product quality.
Easy Maintenance: This part is a key component in routine pump overhaul and
maintenance kits, allowing for straightforward replacement by a
qualified technician to resolve common performance issues.
Technical Specifications
Applications & Industries
This exhaust valve reed shim is essential for maintaining Edwards
E2S series pumps, which are known for balancing performance, cost,
and availability. These pumps are widely used in various sectors:
Industrial Processing: Plastic thermoforming, vacuum degassing, and impregnation.
General Manufacturing: Standard applications requiring reliable medium-vacuum.
Laboratory & Research: Environments where reduced noise levels (e.g., 60 dB(A) for E2S85
at 50Hz) are beneficial.
Compatibility Information
This exhaust valve reed shim is designed as a direct replacement
for the following Edwards vacuum pump models:
Edwards E2S45
Edwards E2S65
Edwards E2S85
Verification is Crucial: Always verify your pump's full model number from the unit's
nameplate before purchase. Cross-reference with your pump's parts
list or consult the official documentation for confirmation.
Symptoms of a Failing Exhaust Valve Reed
Be aware of these common signs that may indicate the need for a
valve reed replacement:
Poor Ultimate Vacuum: The pump cannot reach its base pressure (e.g., 3.0E-03 mbar) even
after adequate pumping time.
Slow Pumping Speed: The time required to evacuate a vessel increases significantly.
Increased Noise: Unusual operational noises from the pump can indicate valve
issues.
Oil Backstreaming: Visible oil mist or contamination in the vacuum line or chamber.
Why Choose Our Exhaust Valve Reed Shim?
Guaranteed Compatibility: Precision-manufactured to ensure perfect integration with your
Edwards E2S series pump, restoring its original performance and
reliability.
Proven Reliability: Made from quality materials to provide a durable and long-lasting
repair, minimizing equipment downtime and supporting the pump's
reputation for robust design.
Expert Support: We specialize in vacuum pump parts and can provide assistance to
ensure you select the correct component.
Frequently Asked Questions (FAQ)
Q: How can I confirm this exhaust valve reed shim is compatible
with my specific Edwards pump model?
A: This reed shim is designed for the E2S45, E2S65, and E2S85
models. For absolute certainty, please check the full model number
on your pump's nameplate. Our support team can also assist with
verification.
Q: Is this a genuine Edwards OEM part?
A: This is a high-quality aftermarket replacement part manufactured
to strict OEM specifications, offering reliable performance and a
perfect fit at a competitive price.
Q: What other components should I replace when performing
maintenance?
A: For a comprehensive overhaul, we strongly recommend inspecting
and replacing other wear parts simultaneously. Consider replacing
the vanes (rotary blades), the entire maintenance kit which may include O-rings, seals, gaskets, and filters (air intake filter, oil filter). It is also an ideal time to
change the vacuum pump oil.
Q: Do you provide technical data sheets for this part?
A: Specifications and compatibility information are provided here.
For detailed engineering drawings, please contact our support team.
Shipping & Returns
We process and ship orders promptly to minimize your equipment
downtime.
We stand behind our products with a clear and fair return policy
for unused items.
This part is backed by a warranty against manufacturing defects.
