Definition
Needle Valve is an important part of the instrument measurement pipeline system, is a valve that can accurately adjust and cut off the fluid, the valve core is a very sharp cone, generally used for smaller flow, higher pressure gas or liquid, the structure is similar to the shape of the shut-off valve, its function is to open or cut off the pipeline passage with the valve.
Our advantages
High Pressure Capability: This needle valve can withstand pressures up to 3000 psi (100 bar), making it suitable for demanding applications involving high pressures.
Versatile: The valve can be used in a variety of media, including water, non-toxic gases, making it a versatile choice for different industries.
User-friendly design: The manual operation of the valve is easy to control and adjust, adapting to a variety of user preferences. Compact size that doesn't take up extra space.
Custom support: With available OEM and ODM support, users can customize the valve to meet their specific requirements, such as changing port size or material.
Cost-effective: Manual operation is easy to install and maintain, and the cost is low.
Specification
No. | Item | Data |
1 | Nominal diameter | 1/2inch(12.7mm) |
2 | Connection | Female thread |
3 | Thread types | G,NPT,BSPP,BSPT |
4 | Body material | Stainless steel 316 |
5 | working pressure | 3000psi(100bar) |
6 | working temperature | -20ºC~+200ºC |
7 | sealing material | Soft seal (such as PTFE,PFA) and hard sealing |
8 | Needle valve height | 9.6cm |
9 | Needle valve length | 8.6cm |



Selling Units:Single item
Single package size:12.5 X 9.5 X 7 cm
Single gross weight:0.50 kg
Founded in 2011, Wofly Technology specializes in high-purity fluid control valves and components, and provides integrated gas distribution systems. Our ISO 9001-certified product portfolio-including diaphragm valves, pressure regulators, and precision instrumentation valves-complies with CE, RoHS, and SEMI S2 standards.
Engineered for critical applications in semiconductor fabrication, hydrogen energy infrastructure, and photovoltaic manufacturing, our solutions ensure leak-tight performance in ultra-clean environments.
With 14-year commitment to advancing gas handling safety, Wofly delivers certified reliability through rigorous quality management systems, supporting global clients in mission-critical industries.
The founding team has been engaged in the design and development of semiconductor high-purity pipe valves for nearly 20 years, the introduction of the core technology of the valve industry in the United States, and constantly explore and innovate the development of high-quality and cost-effective ultra-high-purity diaphragm valves, pressure reducing valves, automatic switching systems and related products, and is committed to becoming a first-class ultra-high-purity fluid system fitting provider.

Q1: What materials are the valve body and stem made of?
A1: Common valve body materials include stainless steel, brass, etc. The stem is usually made of stainless steel.
Q2: How is the quality of the product guaranteed? Are there any certifications?
A2: The products have undergone strict quality testing in the production process, in line with relevant industry standards, and have ISO and other quality certifications.
Q3: How about the sealing performance of the needle valve?
A3: The use of high quality sealing materials can ensure a good seal at 3000psi pressure and the leakage rate is very low.
Q4: How accurate is the flow control of the needle valve?
A4: Precise flow control can be achieved by fine-tuning the stem.
Q5: What are the precautions for installation?
A5: Make sure the pipeline is clean before installation, pay attention to the alignment and tightening strength of the threads during installation to avoid damage caused by too tightness.
Q6: How to carry out daily maintenance and repair?
A6: Check the condition of the seal regularly, clean the inside and outside of the valve, and replace the seal regularly according to the frequency of use and the medium.
Q7: What does after-sales service include?
A7: It usually includes the return and exchange of product quality problems, free maintenance and technical support within a certain period of time.