NPTLOK Needle Valve

  • Pressure Test Report
  • Competitive Price
  • On-time Delivery
  • Mature Technology

Needle Valve Manufacturer

NPTLOK is a manufacturer of needle valve for more than 20 years with good quality, competitive prices, and mature technology.

NPTLOK Needle valve size range is from 1/8”-1”(3mm-25.4mm), which is available in a wide range of ports including male/female threads, tube ends, butt/socket weld, and flange. The threads could be NPT, BSPP, or Metric. The application is used to control the flow rates.

NPTLOK needle valve pressure is from 3,000psi to 10,000psi according to application requirements in systems. For the temperature, PTFE packing is for normal temperature requirements from -54℃ to 232℃. Graphite packing is for high-temperature requirements from -240℃to 469℃

NPTLOK needle valve types are double ferrule needle valve, male/female thread needle valve, flange needle valve, butt/socket weld needle valve, and block bleed needle valve.

Choose needle valve types according to your requirements

Female Thread Needle Valve
Female Thread Needle Valve

Connection: Female thread

Size: 1/4”-1” (6mm-25.4mm)

Body: Barstock, forging parts can be chosen.

Pressure: up to 6000psi

Butt Welding Needle Valve
Butt Welding Needle Valve

Connection: Butt Weld

Size: 1/4”-1” (6mm-25.4mm)

Body: Barstock, forging parts can be chosen.

Pressure: up to 10,000psi

Double Ferrule Needle Valve
Double Ferrule Needle Valve

Connection: Double Ferrule

Size: 1/4”-1” (6mm-25.4mm)

Body: Barstock, forging parts can be chosen.

Pressure: up to 6000psi

Socket Weld Needle Valve
Socket Weld Needle Valve

Connection: Socket Weld

Size: 1/4”-1” (6mm-25.4mm)

Body: Barstock, forging parts can be chosen.

Pressure: up to 6000psi

Flange Needle Valve
Flange Needle Valve

Connection: Flange

Size: 1/4”-1” (6mm-25.4mm)

Body: Barstock

Pressure: up to 6000psi

Block Bleed Needle Valve
Block Bleed Needle Valve

Connection: Female/male thread

Size: 1/4”-1” (6mm-25.4mm)

Body: Barstock

Pressure: up to 6000psi

male female thread angle needle valve
Double Ferrule Angle Needle Valve

Connection: male thread and tube end

Size: 1/4”-1” (6mm-25.4mm)

Body: Barstock, forging parts can be chosen.

Pressure: up to 6000psi

Socket weld angle needle valve
Socket Weld Angle Needle Valve

Connection: Socket Weld

Size: 1/4”-1” (6mm-25.4mm)

Body: Barstock, forging parts can be chosen.

Pattern: Angle

Female Thread Angle Needle Valve
Female Thread Angle Needle Valve

Connection: Female thread

Size: 1/4”-1” (6mm-25.4mm)

Body: Barstock, forging parts can be chosen.

Pattern: Angle

9 Products Found.

Needle Valve Materials

NPTLOK needle valve materials are available in stainless steel, brass, or special materials according to application requirements.

For chemical resistance, the most common needle valve materials are stainless steel and brass. For special applications, special materials are required, for example, Monel, Alloy, and so on.

  • Stainless steel

    Stainless steel material can resist high pressure and high temperature and is very durable in corrosive liquids. So stainless steel needle valve can have chemical resistance to the media.

  • Brass material
    Brass Material

    Brass material is suitable for non-corrosive water, especially for drinking water. It is not used for seawater. The brass needle valve is used in gas piping, drinking water, and hydraulic systems.

  • Monel Material
    Special Material

    If special applications including seawater, hydrofluoric acid, strong alkali medium, reducing acids, and HF Acid plants are required, special materials like Monel and Titanium should be used here.

Needle Valve Feature Box

stem
Packing Choice

PTFE or Graphite packing is available

OEM
OEM Service

NPTLOK accepts OEM service

Needle Valve Flow Control
Flow Control

The NPTLOK needle valve is for flow control

Needle valve symbol
Needle Valve Symbol

NPTLOK needle valve indicates symbol

Needle Valve OEM Service

NPTLOK offers OEM service for the needle valve. You will have specific requirements for needle valve including customized size, flow pattern, and so on. It is better to send us your drawings with your requirements or needle valve samples for our technician to check them.  With NPTLOK’s 20 years of experience in manufacturing, our technician will give you a better solution for your OEM requirements.

Furthermore, you can also print your logo on a needle valve to create your own brand in your market.

Packing in the ball valve

Needle Valve Packing

PTFE or Graphite is available in needle valve packing upon the operating temperatures. PTFE is used in the needle valve for normal temperature requirements. Its operating temperature is from -429℉ to 400℉.

If the operating environment requires a higher temperature, Graphite is ideal for the needle valve packing. Its operating temperature is from -400℉ to 875℉.

The cost of Graphite packing is higher than PTFE packing.

Choose the suitable packing according to your project requirements.

Needle Valve Flow Control

The primary function of the needle valve is flow control. The flow will be determined by the stem type, orifice sizes, and stem positions. The flow pattern includes straight, angle, and cross.

Choose the needle valve according to your project flow control requirements.

Needle valve flow control
needle valve symbol

Needle Valve Symbol

NPTLOK prints symbols on the needle valve, which shows the basic function and the flow direction of the needle valve. Engineers and operators are able to clearly communicate by the needle valve symbol. They can quickly identify the type and function of each component, which make sure effective operation.

Needle Valve Company

Why to choose us
OEM Manufacturing

NPTLOK is a needle valve manufacturer with more than 20 years of experience with mature technology, on-time delivery time, and competitive price.

NPTLOK is a registered brand of our factory. It enters into the needle valve business in 1999. Our factory has state-of-the-art equipment and skilled operators. Our technicians understand well customers’ requirements, you will have smooth communication with us about your needs. Around our factory, there are many mature supply chains with more than 20 years, which supply some spare parts. We can offer a qualified needle valve to you.

As NPTLOK is a real factory, and we own mature supply chains. The cost is much more friendly for you. Our needle valve will save costs for your project.

Delivery time may be your most concerned issue. As I mentioned, besides our own production, we also have mature supply chains nearby our factory. We manufacture orders according to our production plan, and some other spare parts are offered on time by our suppliers. Our factory can control the delivery time. You can get the needle valve as scheduled.

With mature technology, good price, and on-time delivery time, why not choose us? Contact us now!

Needle Valve Advantages and Disavantages

Needle Valve Advatanges
Needle Valve Advantages

NPTLOK needle valve has many advantages due to its accuracy and smaller size. The flow rate is able to be controlled precisely, which is very important in working with sensitive systems like medical applications in which precise pressure should be maintained to ensure safety.

Because of the smaller size, the needle valve can be easily shut off and have an affordable price.

Needle Valve Disadvantages
Needle Valve Disavantages

Besides needle valve advantages, there are some disadvantages to using the needle valve.

The needle valve is only suitable for low-flow rate piping systems. If the fluid contains solid particles, it will damage the needle and seats. Because the needle valve is suitable for applications with high restriction of fluid flow, it has a higher-pressure loss, which will increase operating costs

Needle Valve Applications

Needle Valve Catalog

Choose your required needle valve by searching the part number:

Needle Valve Catalog

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Needle Valve Function

The main function of the needle valve is to control and regulate fluid flow, protecting the gauges from damage. The needle valve is used in low-pressure chemical processing, hydraulic systems, and gas and liquid services. The needle valve is also used to monitor gas flow and accurately control flow rates of clean gases or liquids.

Can I get a sample of needle valve?

Yes

What is the max pressure of needle valve?

NPTLOK needle valve max pressure can reach 10,000psig. The body is forging parts

What about the delivery time of needle valve?

It depends on the order quantity. For example, one of our customers placed an order for a 120 pcs needle valve, and the production time is about 15 worker days.

Could I have a price list of needle valve?

Yes, Please give me your Email, and I will send you a price list of regular needle valves for your reference

Is NPTLOK a real factory of needle valve?

Yes, NPTLOK is a registered brand. We have had a factory for manufacturing the needle valve for more than 20 years.

Do you have a pressure test of needle valve before delivery?

Yes

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