We offer a range of low-cost, high quality instrument needle valve

FD-LOK valves engineers and manufactures a range of instrument needle valve and Manifolds for use in the Oil, Gas and Petrochemical industries.
We are able to provide our needle valve manifolds with plugs. Each of our manifold valves have stainless steel colour coded identity tags affixed to individual valve head units. Our needle valves and manifolds may be degreased for oxygen service to Air Products AO3 standard. Our Firesafe needle valves and manifolds are constructed in austenitic stainless steel.
Count on us for Needle valves for safe, secure and leak-free connections, even in the harshest settings. We offer a range of low-cost, high quality instrument needle valve.  All direct mount instrument valve manifolds are supplied with Teflon gaskets and high tensile carbon steel bolts. Graphite gaskets and stainless steel bolts are available on request.

Fd-lok stainless steel needle valves have been at the forefront of needle valve technology

Fd-lok stainless steel needle valves have been at the forefront of needle valve technology. Since our formation in the befor 90's, we have pioneered the Needle Valve concept. Our range of needle valves and instrument valve manifolds offer true reliability and safety under high pressure. Our needle valves are the most unique valves on the market today, offering a diverse range of features and added extras to ensure that our customers are able to benefit from maximum efficiency through the Oil and Gas extraction process.
All our products are compatible with ISO 9001,our In-House testing facility assures, verify and confirm high quality of products that are available to our customers at the most competitive prices and in the timeliest manner possible.

Fd-lok provide them with products that suit their particular specifications

Welcome to Fd-lok - your destination ultimate for all your instrument needle valve and fittings needs. We are leading instrument valves manufacturers providing our customers with products that are of international standard at the most cost-effective prices in the market.  We are your best choice as industrial valves manufacturers as we give you products that are cost effective, highly durable, easily installable, low maintenance as well corrosion resistance. We cater to an extensive range of industries working in different segments and provide them with products that suit their particular specifications. These industries include:
• Sugar
• Textile
• Oil and gas
• Power
• Water and waste water treatment
• Chemical process industries
• Food
• Pharmaceuticals

Fd-lok is the preferred choice of its customers for offering an extensive assemblage of stainless steel needle valves.

Our company is the preferred choice of its customers for offering an extensive assemblage of stainless steel needle valves. Optimum quality raw materials procured from our reliable vendors are used for manufacturing these robust and high durability valves. These high pressure needle valves are suitable for reducing the torque requirements.
The series of needle valves are specially designed and manufactured for use in corrosive and hazardous environments. These valves are for use in process control, instrumentation and flow control applications. Non rotating Vee tip design, which forms a bearing joint with the stem eliminating any rotation between the plug and seat on closure ensuring long life.

Instrument type needle valve series

Fd-lok instrument needle valve controls the opening of a small orifice in a channel with a bar-shaped needle, controlling the flow by changing the channel resistance. The valve thus acts as a resistance. The flow changes when the pressure applied to the valve changes. A to make the pressure applied to the valve constant, thereby obtaining constant flow. This is an inexpensive method which is commonly used when the pressure loss on the valve outlet side does not change. Use a simplified type, precision type, or high pressure needle valves according to the usage.
This valve series is typically used with differential pressure and multivariable transmitters. Additionally, a Block and instrument valve manifolds design is used with inline gage and absolute pressure transmitters. A single block valve provides instrument isolation and a plug valve provides drain/vent capabilities.

Featuring the World’s most comprehensive range of instrumentation needle valves

Featuring the world’s most comprehensive range of instrumentation needle valves. The Fd-lok stainless steel needle valves range is designed and manufactured to the highest standards to meet the requirements of the severe applications anticipated for these valves. They have a split stem design, which ensures accurate seating, and a bubble tight seal. They are general-purpose valves for use on liquid or gas applications where the isolation of flow, equalisation and venting of pressure are the main criteria.
Our instrument check valves and needle valves are available in various materials. Sizes of our valves range from 1/8" up to 1" and beyond for custom applications. Fd-lok check valves and needle valves are ideal for water, oil, gas, chemical and air. If there is a valve you have question on, or if you do not see a valve that meets your specifications, please contact our sales staff for immediate assistance.

Needle valve has performance and reliability

Instrument needle valve provides easy flow regulation in all applications, including shut off and throttling for pressure gages and instruments.  With a one piece, hot forged brass body construction, years of maintenance-free service can be expected.  The needle valve, with its tamper-proof design and blowout-proof stem, provides excellent performance and reliability. FD-LOK instrument valves are designed for positive leak tight shut-off and regulation of fluids in process, power, and instrumentation applications. The series needle valves provide the user with the utmost in flexibility when designing miniaturized tubing or piping systems.

Acclaimed type needle valve

We are highly acclaimed in global market place for manufacturing and exporting an extensive range of high pressure needle valves. FD-LOK valves cater to wide requirements of industries such as aerospace, climate control equipment, filtration, hydraulics, process control and pneumatic. Manufactured in strict accordance with industry standards using high quality stainless steel, these stainless steel needle valves are available in different standard sizes. We offer these stainless steel needle valves to clients at competitive prices.
Features:
Rust proof finish
Easy to install
Can sustain high temperatures and pressures
Stainless Steel Needle Valves Series
With years of experience and industrial domain aptitude, we are occupied with offering a broad scope of Stainless Steel Needle Valves Series. These valves find application zone where the stream of high weight, grating loaded mediums should be controlled.
Forged or bar stock body construction.

The safety of the needle valve

Fd-lok make stainless steel needle valves come in bar stock as well as in forged construction various sizes, sealing styles, end connections and stem types.  High pressure needle valve is that its stems are interchangeable with any of its valves of the similar configurations thus resulting in low cost and less inventory.  We offer a range of needle valve that are fabricated from qualitative raw material and are as per the international standards.

Installation and long term maintenance issues

All of our instrument needle valve is ISO 9001 certified products.   Maximum pressure after many tests before shipment  to ensure leak free performance upon installation.  Our advanced design helps ensure years of leak free service, and our manufacturing processes ensure that our products are produced to the same high quality standards time after time.  Monoflange needle valve and manifolds are fully marked (permanently) to aid in installation and long term maintenance issues and our bonnets are color coded to aid in operation and maintenance of the valves and manifolds.  Innovative design, unbeatable quality proven by unequalled testing and competitive pricing make PRECISION 'The New Standard' in instrument manifolds and valves.

Fd-lok needle valve is suitable for all instrument isolation applications

Fd-lok needle valve is suitable for all instrument isolation applications, giving repeatable bubble tight shut off. Its operation is simple, economical and effective.
Inconel needle valve in a line or instrument very cost savings.  Top Sealing Bonnet style,Robust HIGH pressure design.  It has strong high pressure design, low torque operation, wide end connection with compact size. Fd-lok needle valve is maintenance free and all the material tracking,even at high temperatures is also very pressure.

Features and Specifications

Stainless steel needle valves features and specifications
Pressure rating to 10000psig(690bar).
Temperature rating from -65°F to 1200°F (-54°C to 649°C) with standard PTFE packing.
Compact and rugged body design.
Size from 1/8" to 1" and 3mm to 25mm.
Body Material is standard in 316 stainless steel.
Monoflange needle valve  is available in a wide range of configurations up to 1”. For extremely accurate flow metering, the Series offers the most precise control of fluids and gases.

Fd-lok instrument needle valve offers a wide range of sizes

Rugged and compactly designed, Fd-lok instrument needle valve  offers a wide range of sizes,  that work well for a variety of applications, including hydraulic and pneumatic systems.  Hy-Lok needle valves are meticulously designed for the flow, temperature and system required. High pressure needle valves is used in high pressure fluid handling components for the chemical/petrochemical, research, oil and gas.

Stainless steel needle valve maintenance

Stainless steel needle valves within a block and bleed function help achieve positive isolation within maintenance operations of a live process plant.  These work well in non-critical processes like with non-hazardous fluids or a low pressure system. Not only for maintenance. Fd-lok high pressure needle valves  also work well in flow-metering operations, and are especially good at maintaining a calibrated and constant low flow rate.

Meet your varying needs

Fd-lok Instrument needle valve has a one-piece forged body and PTFE packing.All designed to handle the extreme conditions of high pressure and high temperature services such as those in super-heated steam power plant services. With a multitude of configurations available, you will find a model to meet your varying needs. To withstand the extreme temperatures this valve is designed for,high pressure needle valve can be specified in either materials.

Available in a wide variety of connections

Needle Valves are designed to regulate flow to an instrument or other industrial application. Gauges needle valves are rugged enough for the oil & gas market, and suitable for most industrial applications.  Available in a wide variety of connections in 316 stainless steel and carbon steel bodies.
The instrument valves can be used for shutting off impulse lines or for isolation of pressure instruments. All valves are standard stainless steel and optional available in exotic materials, such as Hastelloy and Monel. This valve has a non-rotatable conical tip to ensure perfect alignment.

The virtue of the needle valve

The virtue of the needle valve is from the vernier 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 (the control input) makes for a very small and precise change radially (affecting the resultant flow).
Needle valves may also be used in vacuum systems, when a precise control of gas flow is required, at low pressure,[1] such as when filling gas-filled vacuum tubes, gas lasers and similar devices.
Please make a selection from our High pressure needle valve in various materials or our range of rugged instrument manifold valves. They are suitable for isolation, bleeding, calibration, and testing of pressure instruments.

A needle valve has a relatively small orifice

An instrument needle valve uses a tapered pin to gradually open a space for fine control of flow. The flow can be controlled and regulated with the use of a spindle. A needle valve has a relatively small orifice with a long, tapered seat, and a needle-shaped plunger on the end of a screw, which exactly fits the seat.
As the screw is turned and the plunger retracted, flow between the seat and the plunger is possible; however, until the plunger is completely retracted, the fluid flow is significantly impeded. Since it takes many turns of the fine-threaded screw to retract the plunger, precise regulation of the flow rate is possible.

manifold valves and needle valves

General manifold valves and needle valves are engineered considering the specific process requirements and available in wide range of materials. General offers 2-Valve Manifolds, 3-Valve Manifolds, 5-Valve manifolds and Needle valves based on international standards. General is committed to ensure the highest quality of products and each manufactured product undergoes strict quality control and check at full fledged quality control laboratory.
Needle Valve provides easy flow regulation in all applications, including shut off and throttling for pressure gages and instruments.  With a one piece, hot forged brass body construction, years of maintenance-free service can be expected.  With its tamper-proof design and blowout-proof stem, provides excellent performance and reliability.

Instrument needle valve are manufactured

Instrument needle valve are manufactured in 316 stainless steel or in any machinable metals. stainless steel needle valves can be manufactured in accordance with specification .
Ensuring quality is one of the more important considerations in the production process at BULK.
It is not only inspected the final product but all the stage manufacturing steps are surveyed in detail.
Production of all components is carefully controlled from design through final testing.
Records are maintained to verify specification compliance in raw material procurement and testing.