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We are a leading ISO13485 certified manufacturer of duckbill valves since 2009. Specializing in micro plastic and rubber duck bill valves for precise flow control. With 17 years of experience, we ensure precision and reliability in medical, industrial, and chemical applications.

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The medical industry’s constant Duckbill Check One Way Not Return Valve Assemblies that embody both reliability and precision. Download our brochure for an in-depth look into the features and applications of the medical-grade duckbill check valves on our Web https://duckbillvalvefactory.com
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JT1003-2 Diameter 8mm Height 10.75mm Red Duckbill Valve

Precision Micro-Valve Spotlight: The JT1003-2 Duckbill Check Valve for Medical-Grade Flow Control

Blog URL Source: https://duckbillvalvefactory.com

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In the realm of micro-fluidic systems, particularly within medical devices, the reliability of a component that weighs less than a gram can be a matter of critical importance. At DuckBill Valve Factory, our 17 years of ISO13485-certified manufacturing experience culminates in products designed for this exacting precision. Today, we are detailing our JT1003-2, a miniature duckbill check valve engineered for applications where space is limited, but the demand for performance is not.

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JT1003 2.DuckBill Valve Factory.Drawings2. 2026 03 16 160941 452

The JT1003-2 is a testament to micro-scale engineering. Designed and manufactured in our ISO13485 facility, it ensures the highest standards of quality and traceability required by the medical and pharmaceutical industries.

JT1003-2: Specifications and Visual Design

This model is defined by its compact, precise dimensions and distinct visual coding:

  • Critical Dimensions: With an outer diameter of just 8mm and a height of 10.75mm, the JT1003-2 is purpose-built for integration into handheld devices, catheters, or manifold assemblies where every millimeter counts.
  • Material Hardness: It features a shore hardness of 50-60 degrees. This specific range provides an ideal balance—soft enough to ensure a “drop-tight” seal under low back pressure, yet firm enough to resist deformation and maintain a consistent cracking pressure.
  • Visual Identification: The valve is manufactured in a distinct red color. This is not merely aesthetic; it serves a practical purpose in manufacturing and assembly, allowing for instant visual confirmation of the correct valve type during the production of complex medical devices, reducing the risk of assembly errors.
  • Technical Drawing: For precise integration, the official technical drawing for the JT1003-2 is available. This drawing provides all necessary details on tolerances, lip configuration, and recommended seating dimensions for secure and optimal performance.

Primary Applications: Precision in Critical Systems

Given its size, material properties, and our ISO13485 certification, the JT1003-2 is ideally suited for single-use and reusable medical devices:

  • Infusion Pumps & Sets: Its primary role is to act as a one-way gate, ensuring that life-sustaining fluids, medications, or nutrients flow precisely toward the patient and cannot reflux back into the reservoir or tubing, which could lead to contamination or inaccurate dosing.
  • Respiratory & Anesthesia Equipment: Used in pressure monitoring lines or as a one-way valve in breathing circuits, its low cracking pressure ensures sensitive pressure readings are accurate and that gases flow in the intended direction.
  • Diagnostic Devices & Sample Collection: In micro-fluidic chips or urine collection systems, the JT1003-2 prevents cross-contamination by ensuring that samples or reagents move in one direction only, maintaining the integrity of the test.
  • Pressure Relief in Catheters: Its small footprint makes it suitable for incorporation into catheter balloons or drainage systems to provide precise, one-way pressure relief or fluid drainage.

Material and Performance Characteristics

The JT1003-2 is manufactured from high-grade, medical-compatible elastomers in our ISO13485 certified cleanroom environment.

  • Biocompatibility: The materials are selected to be compatible with a wide range of pharmaceuticals and bodily fluids, ensuring patient safety and device efficacy.
  • Low-Pressure Sensitivity (50-60 Shore Hardness): The 50-60 durometer formulation is key. It creates a very flexible “bill” that opens with an extremely low cracking pressure (often < 1 psi). This is critical for gravity-fed infusions or devices driven by subtle pressure differentials. Simultaneously, it provides an instant, positive seal against reverse flow.
  • Consistency and Reliability: Our advanced micro-molding processes ensure that every JT1003-2, from the first to the millionth, performs with identical precision. The strict QC process, highlighted on our website, guarantees this reliability.
  • Chemical Resistance: The chosen materials resist degradation from common medical sterilants and cleaning agents.

Frequently Asked Questions about the JT1003-2

Q1: Is the JT1003-2 suitable for applications involving sterile fluids?
A: Yes, absolutely. The JT1003-2 is manufactured under our ISO13485 certified quality management system, which mandates strict controls for cleanliness and traceability. The materials themselves are selected for their compatibility with sterile fluids and common sterilization methods (like EtO or gamma radiation).

Q2: How does the 50-60 shore hardness affect valve performance compared to a firmer valve?
A: The 50-60 durometer range makes the JT1003-2 exceptionally sensitive. It requires less forward pressure to open (low cracking pressure) and seals more softly and completely against low back pressures. This makes it ideal for delicate medical fluid applications where you cannot use high-pressure pumps, unlike a firmer valve (e.g., 70-80 shore) which might be used in higher-pressure industrial sprayers.

Q3: What is the primary advantage of the red color?
A: The primary advantage is quality control and assembly verification. In a cleanroom environment where hundreds of tiny, similar-looking components might be handled, the distinct red color of the JT1003-2 provides immediate visual confirmation that the correct valve is being installed. This simple feature helps prevent mix-ups and ensures device integrity.

Q4: Can the dimensions be customized for a specific manifold design?
A: As noted on our website, we specialize in OEM and ODM custom solutions. While the JT1003-2 is a standard model with fixed 8mm OD and 10.75mm height, our engineering team can work with you to modify these dimensions, the hardness, or the material to perfectly fit your unique device architecture.

Q5: What is the expected cracking pressure range?
A: While dependent on the exact fluid and installation, the JT1003-2 is designed for ultra-low pressure opening. It is typical for valves in this size and hardness range to open consistently at pressures well below 0.5 PSI. The technical drawing or datasheet will provide more specific, tested values.

Conclusion

The JT1003-2 Duckbill Valve is more than just a tiny component; it is a precision-engineered solution for the most demanding fluid control challenges in modern medicine. With its compact 8mm x 10.75mm size, optimized 50-60 durometer softness, and distinct red color for assembly assurance, it embodies the quality and expertise of an ISO13485-certified manufacturer.

For engineers and device designers seeking a reliable, miniature, one-way valve, the JT1003-2 offers a proven, high-performance solution. To request the detailed technical drawing, discuss customizations, or request samples for your prototyping phase, please contact our engineering sales team today.

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DuckBill Valve Inner diameter from 1.83mm to 100mm

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