Needle Valves:
Smooth and Reliable Operation with Leak-Tight Performance
CPV needle valves are meticulously designed to masterfully control and regulate fluid and gas flow within pipelines. Engineered with soft-seated, bubble-tight performance and unparalleled durability for high-pressure applications, these valves redefine precision and performance.
The tapered button (guide tip) enables precise flow regulation and gradual flow adjustment during closure, ensuring smooth and reliable operation in any scenario. Experience a new level of control and efficiency.
Needle Valves
Features and Benefits:
- Water, oil and gas (WOG) compatible which reduces the need to purchase multiple types of needle valves, improves reliability and lowers the risk of leaks and failures.
- Exceptional leak-tight performance over metal-seated valves, ensuring the utmost security and system efficiency, even when working with elusive gases like hydrogen and helium.
- Customize with ease by selecting from a diverse range of seat, stem, and bonnet seal elastomer options to precisely match your unique requirements.
- Interchangeable cartridge design provides easy component replacement which reduces downtime and simplifies in-service maintenance.
| ATTRIBUTE | VALUE |
|---|---|
| Pressure Rating | From vacuum up to 6000 PSIG (414 BAR); Select products up to 7500 PSIG (517 BAR) |
| Temperature Rating | -70°F to 400°F (-56°C to 205°C) |
| Line Size Options | 1/8” through 3.00” Pipe Sizes; 1/4” through 3.50” Tube Sizes |
Configure Product and Download Datasheets
Please use the guide below to find valves with specifications to meet the demands of your specific application. Begin by selecting a valve type and the selection tool will help you identify the part number of the product. From there you can view the data sheet or request a quote for the product you need. As a leading valve manufacturer and supplier, CPV has check, shutoff, and needle valves for sale.
Frequently Asked Questions
What are the primary functions of needle valves?
Needle valves are specialized components used to regulate the flow of high-pressure fluids and gases within pipelines. They derive their name from their plunger design, which resembles that of a sewing needle. This innovative design enables needle valves to achieve precision control over fluid and gas flow. Moreover, they serve the vital role of protecting sensitive gauges from potential damage caused by abrupt pressure changes.
How are hydraulic needle valves different from shut-off valves?
Hydraulic needle valves play a crucial role in controlling flow bidirectionally within pipelines. While they share similarities with shut-off valves, a key distinction lies in their design. Needle valves are characterized by a long plunger, manipulated using a handwheel. The precision control of fluid or gas flow is achieved through the interaction of this plunger with a seat, distinguishing needle valves in their meticulous flow regulation capabilities.
What material are needle valves made of?
Needle valves offer versatility in material choices, with stainless steel and brass being prominent options. Stainless steel needle valves are favored for their durability, longevity and low maintenance requirements. They excel in environments with extreme temperatures.
What are high-pressure needle valves used for?
High-pressure needle valves are used for precise flow control of liquids and gases in demanding systems, such as gas filling plants and petrochemical processing. Their tapered plunger allows for gradual adjustment of flow rates, making them ideal for regulating pressure and protecting delicate gauges from surges.
CPV’s Solution: CPV’s FloMaster® air-operated needle valves are engineered for these exact conditions. They provide reliable regulation up to 6,000 PSI, ensuring that critical systems in the Navy and industrial gas sectors maintain precise control without leakage.
How do needle valves handle high pressure?
Needle valves handle high pressure through a robust body design and a fine-threaded stem that provides significant mechanical leverage. This allows the needle to seat firmly against the orifice, ensuring a bubble-tight shutoff even against extreme differential pressures (often up to 6,000 PSI or more).
CPV’s Solution: CPV utilizes a unique soft-seated design in their needle valves that ensures a bubble-tight seal with low operating torque. This design minimizes wear on the valve seat, extending the service life even in high-cycle, high-pressure applications.
What are the advantages of using needle valves in high-pressure systems?
The primary advantage is precision. Unlike ball valves that are on/off, needle valves offer fine-tuned control over flow rates. They also provide reliable shutoff, vibration resistance, and the ability to throttle high-pressure media without cavitation damage, which is critical for system safety and efficiency.
CPV’s Solution: CPV’s needle valves offer the added benefit of being part of the O-SEAL® System, allowing for leak-proof connections that can be easily installed or removed without springing the line. This combination of precision control and easy maintenance makes them superior for critical infrastructure.