Needle valve / Manufacturer of High-Quality Dual Plate Check Valves | Taiwan Valve Centre Co., Ltd.

Needle valve / 20 years of experiences in producing dual plate check valve, excellent after-sales support, OEM / ODM, oil industry, shipbuilding, seawater desalination, cooling system, nuclear industry.

Needle valve - Needle valve
  • Needle valve - Needle valve

Needle valve

TN1

Needle valve

TVCCL needle valve used to precisely regulate the flow of a substance, typically gas or water, within an appliance or system. Its defining feature is a slender plunger, resembling a needle, equipped with a handwheel for easy and accurate adjustment. When closed, the needle's tapered end fits snugly into the valve seat, effectively halting flow. Turning the valve creates a gap between the needle and the seat, allowing controlled passage of the substance. The design of most needle valves requires multiple turns to create a slight opening, facilitating gradual and precise flow control. This feature is particularly beneficial for protecting gauges from sudden surges of liquid or gas and ensures overall better regulation.

TVCCL needle valve is a durable valve that features a needle-shaped plunger. While it can withstand high pressure, it is not optimal for high flow situations due to its small opening.
Needle valves are commonly used in applications that require precise flow adjustments, the valve allows fluid to flow through a small opening in its housing. The plunger is designed to block flow until it is fully retracted. As a result, it requires many turns of a fine threaded screw to fully retract.
TVCCL needle valve's small opening makes it ideal for precise regulation of flow, commonly used for liquids and gases in delicate gauges. It is also useful in situations where you need to stop or slow down flow over time or make a gradual adjustment.

Features
  • TVCCL needle valve is T-handle operate.
  • Needle valve is having a small seat ring and a pin-shaped, it allows precise regulation of flow rate.
  • Needle valves are not only usually used in flow metering applications but used in low flow rate must be maintained for some time.
  • 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).
  • The needle valve cannot be used in high temperatures.

Advantages of Needle Valve
The small opening of needle valve enables it to handle high pressure, making it an excellent choice for applications that require precise measurements. The valve allows for very small adjustments, which helps regulate flow accurately and achieve an unprecedented level of efficiency.
TVCCL needle valves are frequently utilized to regulate liquid flow due to their unparalleled precision, which enables them to be adjusted in small increments and control the flow rate with great accuracy.

Limitations of Needle Valves
The use of a needle valve is limited to low-flow systems due to inherent limitations. Although the small opening of a needle valve is ideal for small-volume applications, the risk of clogging is a major disadvantage, solid particles can cause damage to the valve if lodged in the seat, making them unsuitable for high-flow systems. Although a needle valve can handle high pressure, it is not recommended for high-flow situations. Additionally, it can be difficult to determine if the valve is open or closed due to its small opening.

Specification
  • Size: 1/4" ~ 1"
  • Pressure Rating For 6000 PSI
  • Connection:Thread
Applications
  • The needle valve is suitable for flow control in the low flow range.Needle valves are usually used in flow-metering applications, especially when a constant, calibrated, low flow rate must be maintained for some time, such as the idle fuel flow in a carburettor.
  • Needle valves usually used in flow-metering applications, especially when a constant
  • Needle valves are not used for simple shutoff applications.
  • Needle valves are used to control the flow precisely.
  • Needle valves can be used for almost any clean gas or fluid.
  • Most commonly used location for needle valves is to monitor gas flow, like propane, in a system.
More Knowledge about TVCCL valve:

A needle valve is a type of valve having a small port and a threaded, needle-shaped plunger. The needle valve is a fine-tuning valve whose valve appearance is needle-shaped and is mainly used to regulate the air flow. The fine-tuning valve requires that the valve opening is gradually enlarged, and the maximum fine adjustment can be continuously performed from the closing to the opening. Needle valve can achieve this function. The overall construction of the needle valve is the same as the ball valve, but the valve seat is needle-shaped, which allows the needle valve to adjust the flow rate more accurately, and is used for fine adjustment of high pressure gas and control small flow. The needle valve operation is divided into a hand wheel handle and a one-shaped handle.

Related Products
Ball Valve - Ball Valve
Ball Valve
TB1

The central component of TVCCL ball valve is a spherical ball with bore through its center,...

Details
Files Download
TVCCL Valves Catalogue
TVCCL Valves Catalogue

Catalogue for TVCCL valves

Download

Needle valve - Needle valve | Made in Taiwan Dual Plate Check Valves Manufacturer | Taiwan Valve Centre Co., Ltd.

Located in Taiwan since 1998, Taiwan Valve Centre Co., Ltd. has been a dual plate check valve manufacturer with all the valves sold to 1,500 clients in 80 countries worldwide. Their main valve products, including Needle valve, dual plate check valves, dual plate full lining type, retainerless check valves, bypass check valves, short and long wafer check valves and spring wafer type for industries, such as oil, shipbuilding, seawater desalination, cooling system and nuclear.

TVCCL has a competitive pricing, reliable quality product and excellent after-sales support, well-down packing. We have received good reputation as being a well-known supplier in supplying reliable quality and competitive price check valves from customers. 20 years of experiences in producing dual plate check valve, excellent after-sales support, OEM / ODM, oil industry, shipbuilding, seawater desalination, cooling system, nuclear industry.

TVCCL, TAIWAN VALVE has been offering customers high-quality and durable industrial check valves for any applications since 1998, both with advanced technology and 25 years of experience, TVCCL, TAIWAN VALVE ensures each customer's demands are met.