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Ferrule Tube Fittings, Pipe Fittings & Instrumentation Valves

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Instrumentation Valves

Isolation Needle Valves, High-Pressure Needle Valves, High-Temperature Needle Valve, SS Needle Valves, Duplex Steel Needle Valves, Carbon Steel Needle Valves, Double Ferrule Needle Valves, NPT Threaded Needle Valves, Double Bonnet Needle Valves, 10000PSI Needle Valves, 6000PSI Needle Valves, Needle Valve Exporter, and Manufacturer in Mumbai, India.

Tech Tubes & Fittings Offer a wide range and all types of Needle Valves.

A needle valve is a type of valve having a small port and a threaded, needle-shaped plunger. It allows precise regulation of flow, although it is generally only

Needle Valve Connection: We have a female end, screwed type needle Valve, Male Needle Valve, Female x Male thread needle Valve, Socket weld type needle Valve, Ferrule end needle Valve, Tube end Needle valve,  Union Bonnet type needle valve.

Size Range:

  • For Tube Ends: 1.6mm to 50mm or 1/16” OD to 2” OD
  • For Threaded Ends: 1/16" to 2"
  • Type of Threads: BSP, NPT, ISO, BSPT, UNF, etc.,


Pressure Range:

  • 30 Bar to 825 Bar
  • 435 Psi to 12000 Psi


Grade:

  • SS 304, SS 304/L, SS 316, SS 316/L
  • Duplex / Super Duplex Stainless Steel
  • Brass
  • (Incoloy®)* Alloy 600, Alloy 601, Alloy 625, Alloy 800, Alloy 825
  • (Monel®)* Alloy 400, Alloy K500, Alloy R405
  • (Hastelloy®) Alloy C276, Alloy C22, Alloy B2
  • Titanium
  • Carbon Steel / Mild Steel 

Needle Valve

Nut & Ferrule Needle Valve

Hydraulic Needle Valve

Hydraulic Needle Valve

Hex Needle Valve

Hex Needle Valve

Male & Female Needle Valve

Male & Female Needle Valve

Needle Valve - Step by Step Complete Guide

What is Needle Valve?

A needle valve is also known as Isolation Needle Valve or Control Needle Valve sometimes is a valve used to regulate the flow of a substance – liquid or gas usually, through an appliance or system. The valve includes a small plunger with a shape like a needle – this is a unique feature of a Needle Valve. A small handle either Wheel type or Bar type is used to enable easy, slow, and precise turning of the valve which in turn helps to regulate the flow to the Needle Valve from High to Low and vice versa. When the elongated stem of the Needle Valve is fully tightened, it fits exactly into the seat to restrict the flow of the medium (gas or liquid).

Similarly, when the handle is turned and the valve has opened the space between the needle and the seat opens up – resulting in the passage of a minimal amount of liquid/gas through the Needle Valve.

The needle valve is designed in such a way that it required multiple turns to open up completely or shut completely. This ensures that the valve both the ways either during opening or closing – opens up or shuts smoothly and slowly. Also enabling a gradual, precise, and accurate control over the amount of liquid or gas that can pass through the Needle Valve. Additionally, preventing damage to gauges and other equipment that could be affected due to sudden bursts of gas or liquid. In fewer words, a Needle Valve helps in better control and regulation.   

 

How Are Needle Valves Made?

Manufacturing a Needle Valve consists of various factors.
A Needle Valve when in use will be under stress to hold larger amounts of gas and liquids. These gases and liquids may contain chemicals that may cause damage to many materials and thus it is very important in fact most essential to choose highly durable.  

The most common choice for Needle Valves is Stainless Steel especially Stainless Steel 304 / 304L or Stainless Steel 316/316L. This type of Stainless Steel is resistant to chemical damage to some extent and also proves to be corrosion proof if the liquid or gas is compatible. This way the maintenance cost remains low. Carbon Steel, Brass stands as a general choice for Needle Valve.

Apart from Stainless Steel, Carbon Steel, and Brass, these Needle Valves are also manufactured in a variety of highly durable materials like Inconel, Duplex Stainless Steel, Super Duplex steel, Monel, Hastelloy, Incoloy, Titanium, Cupro Nickel. The Needle Valves should be used only depending on their compatibility with the medium. Incompatible materials prove to be a risk for the long run causing severe corrosion and rust in Needle Valves.

A very critical characteristic of Needle Valves is that they should be able to withstand extreme temperatures. Often, the gases or liquids pushed through these Needle Valves are extremely hot or cold (cryogenic environment). Both these variables can be damaging for these valves. However, a smart choice can always be made by choosing the right material and right seal which can withstand the high or low temperature to which the Needle Valve will be exposed to.

There are a variety of Needle Valves for a variety of settings and applications considering the type of material, type of seal, different types of ends, mounting, different construction, etc., Needle Valves should be chosen considering the multiple factors and their critical nature of use.

A list of primary qualifications for a well-constructed and well-performing Needle Valve will be:

  1.  Durable
  2. Chemical Resistant
  3. Withstanding pressure as per the application
  4. Withstanding temperature as per the application

How Does a Needle Valve Work?

Needle Valves can operate manually or automatically.  Our scope consists only of manually operated Needle Valves. Manually Operated Needle Valves use a handwheel or a similar arrangement to control the distance between the spindle tip and valve set. When the handle is turned in one position it opens the valve and causes the liquid/gas to flow in. Similarly, in the Needle valve and opposite action of closing the Needle Valve causes the shutting down of the flow of liquid or gas.  However, the most distinguishing feature of the Needle Valve is that unlike a Ball Valve which is used only to shut down or open up the flow a Needle Valve can be used to decrease or increase the flow. This means it does not need only to be completely shut off or shut down to operate, it can be used at a middle position which enables the medium–gas or liquid to flow slowly or comparatively faster. 

Uses of Needle Valve?

A Needle Valve is used usually in flow metering applications, where a constant calibrated or low flow rate should be maintained for some time. Eg., Idle fuel flow in a carburetor.

  • Needle Valves are commonly used to provide shut off for a pressure gauge.
  • Needle Valves are also used for shut off of the supply of Anhydrous Ammonia applications.
  • The Needle Valves are generally not used in simple shutoff applications like Ball Valve
  • The orifice of the needle valve is smaller and the force advantage of the finely threaded stem is high.
  • Needle Valves are easy to shut off due to the fine thread stem even when the pressures are high.
  • Needle Valves can be tightened just by the fingers.

Needle Valve Construction and Design


Needle Valves are to an extent similar to shutoff valves. They are used to start, regulate and stop

Needle valves are similar to shutoff valves. They’re used to start, stop, and regulate the flow rate within a pipeline.

When compared to shut off valves, Needle Valves are designed differently. Needle Valves have a tapered, long, needle-like point. This needle-like point is located at the end of the needle valve stem.

Needle Valves have a hand wheel or a simple handle made from a round bar which of course helps in regulating, starting, or stopping the flow.

There are a variety of designs for needle valves, Screwed end – BSP (British Standard Pipe) threaded, NPT (National Pipe Thread) threaded, BSPT which is a tapered thread like NPT, Socket Weld End, Flanged end are different ends these are available in.

The most commonly used in the Instrumentation field is Tube End Needle Valves also known as Double Compression Needle Valve or Single Compression Needle Valve.

The Needle Valves are available in a variety of grades as per the below list-

 

Material Of Construction

Monel :
Grade: Monel 400, Monel 401, Monel 404, Monel K500, Monel R-405

Nickel :
Grade: Nickel 200, Nickel 201

Inconel :
Grade: Inconel 600, Inconel 601, Inconel 602, Inconel 625, Inconel 725, Inconel X750

Incoloy :
Grade: Incoloy 800, Inconel 825

Hastelloy :
Grade: Hastelloy C276, Hastelloy C22, Hastelloy B2, Hastelloy G30, Hastelloy G35

Titanium :
Grade: Gr1, Gr2, Gr3, Gr5

Stainless Steel :
Grade: ASME / ASTM SA / A182 SA 304, 304L, 316, 316L, 304/304L, 304H, 316H, 316/316L, 321, 330, 347, 309/S, 310/S, 317/L, 410/S,
DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404, SS 304/L, SS 316/L, SS 310, SS 321, SS 347H, SS 317L, SS 410, SS 416, SS 420, SS 430, SS 904L, SS 17-4-PH, SS 15-5-PH

Carbon Steel :
Grade: ASTM A 105

Duplex Steel:
Grade: UNS S31803, UNS S32205, UNS S32750, UNS S32760, UNS S32950, A182 F51, A182 F55, A182 F44, A182 F60

Alloy Steel:
Grade : ASTM SA 182 - F11, F22, F91, F9, P11, P22, P91, P9, P5, P92, EN42J, EN8, EN19

 

Application in Various Industries 

  • Power Projects
  • Railways
  • Chemical
  • Petrochemicals & Fertilizers
  • Oil & Gas
  • Turnkey & EPC
  • Marine
  • Aerospace

Shop Tactlok Needle Valves Products Today at Tech Tubes & Fittings

Have you made up your mind to purchase needle valves today? Then we’d like to invite you to shop our catalog of options here at Tech Tubes & Fittings Products. Enjoy equipment that goes above and beyond doing the job of a simple needle valve.

 

 

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LEGAL DISCLAIMER


All registered names, trademarks, copyrights and part numbers like Inconel, Monel, Hastelloy, Zeron etc., remain the property of their respective owners. All use of OEM names, part, model and item numbers are for reference and identification purposes only. TECH TUBES & FITTINGS is not an endorsed reseller or representative of any of above listed Materials / Brands or their respective products. TECH TUBES & FITTINGS products do not infringe on Trade Marks Act 1995 or Copyright Act 1968, and to the best of our knowledge and through investigation we are not in contravention of any current patents