The JT1064-5: A Slender, Ultra-Soft Silicone Duckbill Valve for Gentle Fluid Control
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In the design of sensitive medical devices, the physical interaction between a component and a fluid or tissue can be as critical as the component’s primary function. At DuckBill Valve Factory, our ISO13485-certified cleanroom and 17 years of specialized molding expertise allow us to create valves with nuanced physical properties. Today, we are pleased to introduce the JT1064-5, a silicone duckbill check valve featuring a unique slender profile and an exceptionally soft, 45-55 durometer formulation.
The JT1064-5 is engineered for applications where space is constrained in one dimension, and where an extremely gentle, low-pressure sealing action is paramount. Its 15.20mm diameter and 22.61mm height create a elongated shape ideal for insertion into deeper ports or tubing, while its ultra-soft material ensures minimal resistance and a compliant seal.
JT1064-5: Specifications for Gentle, Space-Efficient Integration
This model is defined by its slender geometry, ultra-soft material, and medical-grade purity:
- Critical Dimensions: With a moderate outer diameter of 15.20mm and a more elongated height of 22.61mm, the JT1064-5 features a slender, probe-like profile. This shape is purpose-designed for applications requiring a deeper insertion into a manifold port, a connector, or the end of a tube, where a wider, shorter valve might not fit.
- Material Composition (Silicone): This valve is manufactured from high-quality, medical-grade silicone. Silicone is the material of choice for countless medical applications due to its exceptional biocompatibility, wide temperature tolerance (-50°C to +200°C), and inherent flexibility. It is non-toxic, odorless, and resists microbial growth.
- Ultra-Soft Material Hardness: It features a precisely controlled shore hardness of 45-55 degrees. This places the JT1064-5 at the softer end of our silicone valve range. This ultra-soft formulation is a key feature, ensuring the valve’s elongated lips are extremely pliable. This results in an exceptionally low cracking pressure and an extremely gentle, compliant seal—ideal for fragile biological fluids or low-pressure systems.
- Technical Drawing: For precise integration, the official technical drawing for the JT1064-5 is available, detailing all critical tolerances, the specific lip geometry of its slender design, and recommended mounting specifications.
Primary Applications: Where Gentle Action and Slender Profile Matter
Given its medical-grade silicone, ultra-soft 45-55 durometer flexibility, and slender 15.20mm x 22.61mm shape, this valve is ideally suited for:
- Neonatal and Pediatric Drainage Systems: In delicate drainage applications for infants, the ultra-soft valve provides a reliable anti-reflux seal with minimal flow resistance, while its slender shape allows for integration into small-diameter tubing sets.
- Catheter Tube Management: Used as a one-way valve within the hub or along the length of a drainage or irrigation catheter, its elongated shape fits snugly, and the soft lips prevent backflow without exerting pressure on the surrounding structures.
- Low-Pressure Suction Regulators: In medical vacuum or suction systems where precise, low-pressure control is needed, the JT1064-5 acts as a sensitive check valve, opening readily to allow flow and sealing instantly to maintain vacuum integrity.
- Bioprocessing Sample Ports: For aseptic sampling ports on single-use bioreactors or bags, its slender shape can be inserted through a port, and the ultra-soft silicone provides a self-sealing function after a needle or spike is withdrawn.
Material and Performance Characteristics
The JT1064-5 is manufactured under strict ISO13485 protocols in our cleanroom facilities.
- Medical-Grade Silicone Advantages: Silicone offers unparalleled biocompatibility, making it suitable for contact with drugs, blood, and tissue. It is also highly resistant to repeated sterilization (autoclaving, EtO, gamma) without significant degradation, and its clarity aids in visual inspection.
- Ultra-Soft Action (45-55 Shore A): The 45-55 durometer formulation is the defining performance feature. It provides an exceptionally gentle sealing action, resulting in a minimal cracking pressure—often the lowest in our silicone valve line. This makes the valve ideal for gravity-fed systems or applications where any resistance to flow could affect accuracy or damage sensitive fluids (e.g., shear-sensitive biologics).
- Molding Precision for Slender Geometry: Our advanced molding processes ensure that the elongated 22.61mm geometry, with its thin, flexible walls, is reproduced with flawless consistency, guaranteeing reliable performance and preventing issues like wall collapse or inconsistent lip sealing.
Frequently Asked Questions about the JT1064-5
Q1: What is the primary advantage of the slender 22.61mm height?
A: The 22.61mm height allows the JT1064-5 to function effectively as a “check valve probe.” It can be inserted more deeply into a female luer fitting, a manifold port, or the end of a tube, placing the sealing lips exactly where they are needed within the flow path. This can simplify manifold design by eliminating the need for a separate valve housing.
Q2: How does the ultra-soft 45-55 durometer benefit this valve?
A: This is the softest durometer range we offer for silicone valves of this size. It ensures the elongated lips open with virtually no resistance (lowest possible cracking pressure) and seal with a “feather-light” touch. This is critical when handling delicate cells, shear-sensitive proteins, or when operating in ultra-low-pressure gravity feed systems.
Q3: Is the JT1064-5 suitable for use as a one-way valve in a urine drainage bag?
A: Yes, it is an excellent choice for this application. Its ultra-soft silicone provides a reliable, anti-reflux seal that prevents backflow of urine, which is crucial for infection control. The slender shape allows for easy integration into the drainage tubing, and the material is compatible with standard cleaning and disinfection protocols.
Q4: What is the typical cracking pressure for such a soft valve?
A: The 45-55 durometer silicone results in an extremely low cracking pressure, typically well below 0.2 PSI (approximately 1.4 Kpa). It is designed to respond to the slightest forward pressure differential. Exact, tested data can be provided upon request.
Q5: Can this valve be used in a peristaltic pump tubing assembly?
A: While the JT1064-5 itself is a check valve and not designed for the repeated occlusion of a peristaltic pump roller, it is commonly placed downstream of such pumps. Its primary function there is to act as a final one-way barrier, preventing backflow or siphonage when the pump stops, thereby protecting the fluid path and ensuring dosing accuracy. Its low cracking pressure ensures it doesn’t impede the pump’s output.
Conclusion
The JT1064-5 Duckbill Valve exemplifies our ability to engineer nuanced solutions for specific clinical needs. With its slender 15.20mm x 22.61mm profile and ultra-soft 45-55 durometer silicone, it offers a uniquely gentle and space-efficient solution for one-way flow control in sensitive medical drainage, suction, and fluid delivery applications.
For design engineers seeking a reliable, ultra-soft, and slender check valve for their next-generation medical device, the JT1064-5 delivers the quality and performance expected from an ISO13485-certified manufacturer. To request the detailed technical drawing, discuss custom modifications, or order evaluation samples, please contact our engineering sales team today.
