
MDP™ Performance Non-Return Valve
- Lowest pressure drop in industry
- 6-7 year extended service life
- Universal polymer compatibility




Patent Protected Technology
Made in USA
Premium 2-inch non-return valves engineered for injection molding applications. Our patented valve technology delivers exceptional shutoff performance, extended service life, and universal polymer compatibility. Available in sizes from 14mm to 260mm, these precision-engineered valves reduce energy consumption and ensure consistent shot-to-shot quality for automotive, medical, and industrial plastics manufacturing.
Talk to our experts for custom solutions and tailored guidance.
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What size range is available for non-return valves?
Our non-return valves are available in all sizes from 14mm to 260mm diameter to fit any injection molding machine configuration.
How long is the service life of these valves?
Are these valves compatible with all polymer types?
Do the automatic shut-off valves require decompression?
Can these valves retrofit existing injection molding machines?
What industries use these non-return valves?
What is the pressure drop performance of these valves?
Talk to our experts for custom solutions and tailored guidance.

Precision non-return valves for automotive plastic component production requiring consistent quality and minimal variance.

High-precision valves ensuring sterile plastic components and exact shot-to-shot consistency for medical applications.

Reliable shutoff performance for high-volume plastic housing and component production in electronics manufacturing.

Robust valve solutions for demanding industrial injection molding and extrusion operations across all polymer types.
Talk to our experts for custom solutions and tailored guidance.



Over 8 granted patents in plasticating technology, including low-pressure valve designs that deliver industry-leading performance and efficiency.
Since 1999, helping injection molders maximize profitability through advanced plasticating components backed by decades of engineering knowledge.
Direct consultation with founder Mike Durina for personalized system design, ensuring optimal valve configuration for your specific machine requirements.
Our technical experts will respond promptly with custom pricing and engineering recommendations tailored to your injection molding requirements.
For immediate assistance, feel free to give us a direct call at 3304825100 You can also send us a quick email at info@mdplastics.com
For immediate assistance, feel free to give us a direct call at 3304825100 You can also send us a quick email at info@mdplastics.com