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.