BU-Lok Valves & Fitting India Pvt Ltd is a leading manufacturer of Needle Valves in India. With over a decade of expertise, we are known for delivering top-quality Needle Valves renowned for their durability, precision, and performance excellence. They are ideal for various industries, including oil and gas, power generation, water treatment, HVAC, and zoological science.
Engineered to withstand temperature variations, vibrations, and high pressures, our Needle Valves are designed to meet the unique requirements of each industry. Explore our comprehensive range of Needle Valves and experience the commitment to quality, reliability, and affordability in fluid control solutions.
A needle valve is a specialized type of valve designed for precise control of fluid flow. Its distinguishing feature is a slender, tapered stem that resembles a needle. This stem is turned by a handle or knob, allowing for minute adjustments in the opening or closing of the valve. Needle valves are employed in industries where accuracy in controlling flow rates is critical, such as laboratories for precise experiments, the oil and gas sector for regulating fluid flow in pipelines, and aerospace applications for managing the flow of fuel and hydraulic fluids. These valves are prized for their ability to provide fine-tuned control, ensuring processes are efficient and safe.
Within a needle valve, the tapered stem interacts with a seating surface, known as the seat, located within the valve body. As the stem is turned, the gap between the tapered end and the seat is adjusted, allowing for precise modulation of fluid flow. Needle valves come in various materials, including stainless steel and brass, making them suitable for applications with corrosive or high-pressure fluids. Their use of fine threads on the stem facilitates incremental adjustments, ensuring operators can achieve the exact flow rates required. Whether in research laboratories, industrial settings, or critical aerospace applications, needle valves are indispensable tools for achieving accurate and controlled fluid flow.
Tapered Stem: The most distinctive feature of a needle valve is its elongated, tapered stem or spindle, which resembles a needle. This stem is turned to control the opening or closing of the valve, allowing for precise adjustments in flow.
Threading: Needle valves often have fine threads on the stem, which enables users to make gradual and highly accurate adjustments to the valve's position.
Body: The valve body houses the internal components and provides the connection points for piping or tubing. It can be made from various materials, including stainless steel, brass, or other corrosion-resistant alloys.
Seat: Inside the valve body, there is a small orifice with a sealing surface known as the seat. The tapered end of the stem interacts with this seat to control the flow of fluid. As the stem is turned, the gap between the tapered end and the seat increases or decreases, regulating the flow.
Bonnet: The bonnet is the top part of the valve that encloses the stem and provides a means to secure the stem and seat assembly in place. It may have a threaded or bolted design.
Handle or Knob: Needle valves are typically operated manually using a handle or knob attached to the stem. This handle allows users to precisely control the position of the stem and, consequently, the flow of fluid through the valve.
Perhaps the most notable benefit of needle valves is their ability to provide highly accurate and precise control over fluid flow rates. The tapered stem design allows for fine adjustments, enabling operators to achieve the exact flow rate required for a given process or system.
Needle valves are known for their excellent sealing properties. The close interaction between the tapered stem and the seat within the valve body minimizes the chances of leaks, ensuring system integrity and preventing fluid wastage.
Needle valves are available in various sizes, materials, and configurations, making them suitable for a wide range of applications. They can handle different types of fluids, including glasses and liquids, and can be used in environments with varying pressures and temperatures.
High-quality needle valves are typically constructed from robust materials such as stainless steel, brass, or other corrosion-resistant alloys. This construction ensures durability and long-term reliability, even in harsh or corrosive environments.
Needle valves are often compact and have a streamlined design, making them ideal for installations with limited space. Their 90-degree angle (in the case of angle needle valves) can further save space in tight configurations.
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Specification |
Details |
|
Valve Size |
1/8" To 2" / 6 Mm To 50 Mm |
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Thread |
Npt, Bspp, Bspt, Jic, Metric, Unf |
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Connection |
Threaded, Tube End, Butt Weld, Socket Weld, Flange End |
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Flow Pattern |
Straight, Angle, Cross Patterns |
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Function |
2 Way, 3 Way |
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Body Shape |
Square, Round, Hexagon |
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Pressure Rating |
1500 Psi, 3000 Psi, 6000 Psi, 10000 Psi, 15,000 Psi, 20000 Psi |
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Orifice Size |
2 Mm To 9.5 Mm |
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Media |
Hydraulic Oil, Air, Water, Gas, Steam, Hot Water, Cold Water, Sea Water, Chemical |
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Media Temperature |
(-120°c To 500°c) Range As Per Pressure |
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Body Type |
Bar Stock, Forged |
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Handle |
Bar T-Handle, Knob Handle, Wheel Handle |
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Packing Details |
Box Packing, Wooden Pallet |
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Material |
Ss 304, Ss 316, Ss 316 Ti, Brass, Copper, Cs, Duplex, Super Duplex, Inconel, Monel, Hastelloy, Smo 254, Alloy 20, Titanium, 904l & All Other Alloys |
Needle valves must adhere to industry standards to ensure quality and safety. Common standards include:
ASME B16.34: Governs the design and testing of industrial valves.
ISO 9001: Ensures quality management systems are in place.
- These are the most basic and commonly used needle valves.
- They feature a linear flow path, allowing for precise control of fluid flow by adjusting the position of the needle-shaped stem within the valve body.
- Straight needle valves are suitable for applications where a straight-line flow path is preferred and where precise control over flow rates is essential.
- Angle needle valves are designed with a 90-degree bend in the valve body, creating an L-shape.
- This design is advantageous in applications where space is limited or where the valve needs to be installed in tight corners or confined areas.
- Angle needle valves maintain the precision flow control characteristics of straight needle valves while offering a space-saving configuration.
- Multiport needle valves, as the name suggests, have multiple inlet and outlet ports.
- These valves are ideal for complex fluid systems or applications that require the redirection of flow to different paths.
- They enable flexibility in fluid distribution and are commonly used in hydraulic and pneumatic systems.
- Metering needle valves are designed for applications where extremely fine and accurate control of flow rates is critical.
- They often feature micrometer-like adjustments, making them suitable for precision instruments and scientific equipment.
- Metering needle valves are commonly used in laboratories and research settings.
- These valves combine two functions in one: blocking and bleeding.
- They are used in applications where isolation (blocking) of fluid flow and controlled release (bleeding) are necessary for safety or maintenance purposes.
- Block and bleed needle valves help prevent pressure buildup in closed systems.
- Instrumentation needle valves are designed with specific features to meet the requirements of instrumentation and process control systems.
- They often come with fine-threaded stems and are compatible with instrumentation tubing and fittings.
- These valves are essential for applications requiring precise control in process industries.
- High-pressure needle valves are engineered to handle extreme pressure conditions.
- They are constructed from robust materials and designed to provide reliable performance in demanding industrial environments.
- Low-flow needle valves are designed for applications where extremely low flow rates need to be controlled accurately.
- They are often used in analytical instruments and scientific experiments.
- Laboratory and Scientific Instruments
- Oil and Gas Industry (Pipelines, Wellheads, Pressure Gauges)
- Chemical Processing
- Aerospace and Aviation
- Hydraulic Systems
- Process Control and Instrumentation
- Pressure Gauges and Manifolds
- Power Plants (Steam and Cooling Systems)
- Petrochemical and Refining
- HVAC Systems (Refrigerant Flow Control)
- Water Treatment and Desalination
- Food and Beverage Industry (Liquid and Gas Flow Control)
Needle valves are primarily used to precisely control the flow rate of fluids, whether they are gasses or liquids. Their design allows for fine-tuned adjustments to regulate flow, making them invaluable in applications where accurate control is critical. This capability is particularly important in laboratories, scientific experiments, and industrial processes where even minor flow rate variations can impact outcomes or product quality.
Needle valves are extensively utilized in laboratory settings to control the flow of reagents, gasses, or other fluids with high precision. Researchers rely on them to maintain stable and controlled conditions during experiments, ensuring the reliability and reproducibility of results.
In applications where pressure regulation is essential, such as in pressure measurement systems or hydraulic circuits, needle valves are used to fine-tune and stabilize pressure levels. These valves allow for gradual adjustments to maintain consistent pressure, ensuring the safety and accuracy of equipment.
Needle valves are commonly employed in calibration equipment and instrumentation setups. They help calibrate and adjust measurement devices like pressure gauges, flow meters, and analytical instruments to ensure that they provide accurate readings.
Hydraulic systems in various industries, including construction and manufacturing, rely on needle valves to control the flow of hydraulic fluid. By adjusting the flow rate, these valves help regulate the speed and movement of hydraulic actuators, ensuring precise control over heavy machinery and equipment.
Needle valves play a crucial role in the aviation and aerospace industries by controlling the flow of fuel, hydraulic fluids, and other critical fluids in aircraft and spacecraft. Their precise control is essential for safety, efficiency, and flight control.
In chemical plants, needle valves are used to manage the flow of corrosive or hazardous chemicals. The ability to control flow accurately is crucial for maintaining the integrity of the process and ensuring the safety of personnel and equipment.
The oil and gas industry employs needle valves in various applications, including regulating the flow of crude oil, natural gas, and hydraulic fluids in pipelines, wellheads, and pressure gauge systems. Accurate flow control is essential for efficient and safe operations.
Industries such as pharmaceuticals, petrochemicals, and water treatment rely on needle valves for process control and automation. These valves help maintain precise fluid levels, pressures, and flow rates, ensuring product quality and operational efficiency.
Needle valves are used for pressure relief and isolation in systems where pressure needs to be safely vented or where specific sections of a fluid system need to be isolated for maintenance or safety reasons.
In the food and beverage industry, needle valves are used to control the flow of liquids and gasses during various production and packaging processes, ensuring consistent product quality and safety.
At BU-Lok Valves & Fitting India Pvt Ltd, we take great pride in being your trusted partner for all your critical fluid control needs. When it comes to choosing the perfect needle valve, we stand as a beacon of reliability, known for our unwavering commitment to quality, technical expertise, and ensuring customer satisfaction.
Our extensive range of needle valves is meticulously designed to not only meet but exceed the highest industry standards. We understand that precision and reliability are paramount in fluid control, which is why our needle valves are engineered with utmost care. Whether your application demands precise flow adjustments, the ability to handle high pressures, or resistance to corrosive environments, we as the Manufacturer of Needle Valves have the solution.
What truly sets us apart is our dedicated team of highly skilled professionals. They are not just experts in the field but also your trusted advisors. We understand the importance of selecting the right components for your projects, and we're here to share our knowledge and guide you every step of the way. Your unique needs are our top priority.
But our commitment doesn't end with exceptional products. At BU-Lok Valves & Fitting India Pvt Ltd, we take pride in providing unmatched customer service and support. From the moment you connect with us to the seamless delivery of your order, our team is fully committed to ensuring your absolute satisfaction.
In conclusion, when it comes to finding the perfect needle valve to enhance the precision and reliability of your fluid control system, BU-Lok Valves & Fitting India Pvt Ltd is the name you can rely on. Our steadfast dedication to quality and customer support has made us the go-to source for needle valves and related components. Reach out to BU-Lok Valves & Fitting India Pvt Ltd today to explore our comprehensive product range and experience firsthand how we can elevate your fluid control requirements.
