Needle Valve


  • Hardened Stainless Steel Body
  • Integral Bonnet Design
  • Nonrotating needle aid in leak-tight shutoff
  • Long service life

Technical Information

  • Temperature Range: 220ᵒC – PTFE (Max Operating Temperature)
  • Temperature Range: 540ᵒC – Graphite (Max Operating Temperature)
  • Temperature Range: 180ᵒC – TA-Luft (Operating Temperature)
  • Surface Material: Available on request

Material of Constructions

  • Model: Valve Needle Valve (Mainly for the high-pressure reactor)
  • Material type: Stainless steel 316/316L (Wetted Part), SS 304 (Non-Wetted Part) & PTFE
  • Packaging Material – PTFE

Specifications and Description Needle Valve

The Needle Valve is a small valve that manages fluid flow in different systems. It regulates the amount of fluid passing through a pipe or tube. In high and low-pressure operations, it enables sufficient pressure shutoff and precisely controls the system’s flow at a preferred temperature. The valve creates pressure seals for many applications and is available in various stem designs, sealing patterns, materials, and end connections, with integral bonnets and union bonnets being standard options.

The hardened stainless steel, integral bonnet design, and nonrotating needle aid in leak-tight shutoff and long service life. The valve stem threads are isolated from the media. It has a compact design and a stainless-steel stop pin. It includes high-temperature packing, a bonnet seal option, an antitamper, and a lockable handle. It is available in straight as well as angular patterns.

What is a Needle Valve?

It consists of a slender, tapered pin called a “Needle” and a valve body with a small opening. The needle has a pointed end that fits into the valve seat, forming a seal. Turning the valve handle allows the user to adjust the fluid flow by moving the needle closer.

How Does It Work?

When the needle is fully extended, the fluid flows freely through the valve. The aperture gets smaller as the valve is rotated clockwise because the hand gets closer to the seat. A managed and controlled flow rate is produced due to the constriction’s creation of fluid flow resistance. More fluid can flow through the valve by turning the handle counterclockwise.

Precision Control:

The valve provides accurate and precise flow control. Its tapered shape and thread pitch can change the flow rate. It is used in places where exact measurements or delicate control are required.


  1. The Needle Valve allows fluid flow to be precisely managed. It accurately regulates the fluid parting through the valve, allowing minor modifications.
  2. It is ideal for places with less spaces, requiring very little space. It is compact and small, making it easy to fit anywhere.
  3. It is made of strong materials like stainless steel and brass, resulting in a longer lifespan and less maintenance.
  4. It is capable enough to handle both gases and liquids, which allows many industries and applications to take advantage of this.
  5. The tight seal created by the needle-end valve seat controls fluid leakage.

Applications of Needle Valve:

 The Needle Valve is used for several applications in various industries. Specifically, when accurate fluid flow regulation is required, it is widely used in industries such as science laboratories, where precise control of liquids and gases is required. It is useful for tests and experiments or in the pharmaceutical industry, where control of fluids such as oil, chemicals, and gas is needed. It is also beneficial during dosing, mixing, and sampling procedures. HVAC systems use the valve to manage the flow of refrigerants, ensuring maximum cooling or heating efficiency. In water treatment facilities, it is used to control chemical flow and modify pH levels during the treatment process.

How to use Needle Valve?

  • Needle Valve can operate manually or automatically. To use it, follow these steps:
  • Determine the appropriate valve material and size for temperature and pressure.
  • Install the Needle Valve valve in the pipeline.
  • To lift the plunger and open the valve, turn the handwheel in one direction.
  • To control the flow rate, readjust the handwheel.
  • To move the plunger closer to the seat, decrease the flow rate, or close the valve, turn the handwheel in the other direction.

Safety Guidelines

Needle Valve is pressure equipment, so appropriate safety measures must be taken into account.

  • Handle the valve carefully to avoid any shocks damaging the coating.
  • Use appropriate personal protective equipment (PPE) like a flame-resistant or Nomex lab coat, insulating gloves, and safety glasses.
  • Use tubing or hose that fits the gas valve outlet and burner inlet.
  • Check the compatibility of the valve material with the fluid or gas used.
  • Use durable materials like stainless steel for the valve to withstand the stress of holding back large amounts of liquid or gas.
  • Ensure that the valve is secure.
  • Regularly inspect the valve for damage or wear and tear
  • Follow the manufacturer’s valve assembly, use, and maintenance instructions.

Why Choose Us?

Techinstro is a leading manufacturer and supplier of Needle Valve. We provide quality products at affordable prices. We believe in providing our customers with expertise, quality, customer-centricity, customization, timely delivery, competitive pricing, and excellent customer support.

With over ten years of experience, we know what is best needed for the industry and follow stringent quality checks to match industry standards. We have the latest technology and state-of-the-art machinery to meet our clients’ requirements. We ship worldwide. So get in touch with us for customized solutions and affordable packages.