Super Duplex Needle Valves

At Instinox, we believe that ‘practice makes a process perfect’ and we are here since two decades, and surely the masters in our processes. We aim to provide the right quality product at the right place and at the right time. We keep ourselves a large stock, ready for delivery immediately against the receipt of the purchase order. Our reasonably priced products and fast delivery makes us the most trusted Indian manufacturers and suppliers of super duplex needle valves. Place any order in the Indian subcontinent, it is bound to reach us as we are the only major source for supreme quality needle valves, to the small and medium-sized manufacturers. We have an extremely efficient manufacturing and logistics team who provide with customised making, packing, and delivery according to the purchaser’s needs and wants. Our production team, our logistics team, and our merchandisers all around the world work with great coordination to make us what we are today.

About super duplex stainless steel:
Super duplex is the name due to its usage of wide range of materials in its manufacture. This is the topmost grade in the stainless steel family. It is an extremely corrosion resistant and very useful in high temperature as well as in seawater applications. It is the newest and the most promising entrant in this category. It is a perfect combination of many elements which makes it the most popularly used alloy. It belongs to the category of super alloys.

About needle valves:
In simple words, super duplex needle valves manufacturers are basically the instrument which helps in deviating or differentiating the flow of the liquid from the designated path. A needle valve directs, controls, regulates the flow simply obstructing. Super duplex stainless steel needle valves is a type of valve having a very small port and threaded, needle-shaped plunger on the surface. In addition, stainless steel needle valves have an added advantage of highest durability than the other elements. It allows precise regulation of the flow of fluid, although it is generally only able of relatively low flow rates. There is a volume control valve, which helps in controlling the pressure of the fluid flow. The fluid goes through the valve turns 90 degrees and then passes through an aperture that is the seat for a rod with cone shaped tip. An aperture is basically is an opening, just like in the case of the human body we have nostrils. The size of the orifice is changed by locating the cone in alliance to the seat. Needle valves are more often used to control flow into precise gauges which might be damaged by the sudden direct flow of fluid under pressure. Needle valves are moreover used to control the closure of a work cycle, where it is covetable for a motion to be brought slowly to a halt and at other points where particular adjustments of flow are mandatory and where a small rate of flow is expecting the way of passing the fluid.
Instrumentation equipment and can be installed to control, equaliser, calibrate, measure, drain, isolate or vent (an opening that allows gas or liquid to pass out of or into a confined space) the pressure of gases and liquids. Needle Valves come in various styles, sizes, end connections and stem types. They are available in forged construction as well as bar stock. We also provide with customised making as per the order requirements.

Differentiation in hardness between the stems.
Bluntness in the tip of the stem.
Hardened stem and cold formed body threads.
The life cycle of the product is improved.
Hundred percent in-house testing of goods.
Less than one percent rejection rate of our products.
Choice of PTFE packing or Elastomeric O-ring
Needle stem which decreases at the end.
Stem seals.
Pattern: inline and angle.
Wide variety of US Customary and SI ports
Mountable panels.
100% in house, in factory testing of goods.
Less than one percent rejection rate.
Option for colour coded handles.

Applications like flow metering applications use needle valves, especially when a consistent, measured, low flow rate must be upheld for some time, such as the stagnant fuel flow in a carburettor. Needle valves are used in changing the direction of the flow.
Note that the float valve of a carburettor (controls the fuel level within the carburettor) is not a needle valve, although it is described as one. It uses a blunt conical needle, but it seats against a square edged seat rather than a matching cone. The aim here is to obtain a well-defined set between 2 narrow joining surfaces, giving firm shutoff of the outflow from only a light float pressure. Since flow rates are less and many bends of the valve stem are required to fully open or close, needle valves are not used for simple on the go applications. The force advantage of the fine threaded stem is more since the opening is narrow. Needle valves are usually easy to shut off completely, with solely finger tight pressure. The spindle of a needle valve made from brass, when shutting off the flow can be easily damaged by extra turning force. Small simple needle valves are often used as bleed valves (hydraulic valves that combine
one or more block/isolate valves,) in water heating applications. It is not easy to tell from examining the handle position and check whether the valve is open or closed, unlike a ball valve or valves with a rising stem.

A super duplex needle valves suppliers uses a tapered (reduce in thickness towards one end) pin to slowly open up space for subtle control of flow. The flow can be controlled and regulated with the use of a spindle (a slender rounded rod with tapered ends). An super duplex needle valves has a comparatively small opening with a long, tapered seat, and a needle-shaped plunger (part of a device or mechanism that works with a plunging) on the end of a screw, which exactly fits the seat. As soon as the screw is turned and the plunger retracts, flow is possible between the seat and the plunger, however, until the plunger is completely retracted, the fluid flow is significantly impeded. Since it takes many spins of the fine threaded screw to retract the plunger, precise regulation of the flow rate is possible. The specification of the needle valve is from the vernier (a vernier scale is a device that lets the user measure more precisely than it could be done unaided when reading a circular measurement scale) effect of the ratio between the needle’s length and its diameter, or the difference in diameter between needle and seat. A long travel axially (control input) makes for a very small and significant change radially (affecting the resultant flow). Super Duplex needle valves may also be used in vacuum cleaner systems, when a specific control of gas flow is required, at low pressure, such as gas filled vacuum tubes, gas lasers and similar devices. We are our merchandisers, who have helped us in gaining an advantage and a trusted brand in the whole market. Here, you just place the order, and we are there to look after the rest.

We are an ISO 9001:2008, an ISO 14001:2004, and also an OHSAS 18001:2007 certification. We have our merchandisers all around the world, which provide with customised packing and packaging according to the client requirements. Just place the order, and we are there to worry about the rest. Due to our high-quality techniques, we have an overwhelming record of less than one percent rejection rate, as we follow a hundred percent in house checking of goods before doing it any further. We provide a perfect deal of your money and time. We value our employees as much we value our customers. Just place the order, we are there to worry about the rest procedures. Instinox is consistently engaged in exploring new and unique ways to become the monopoly in the industry.