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Needle Valve

Needle Valve
Your Professional Needle Valve Supplier

 

WENZHOU ZHONGTOU VALVE/ZT VALVE is a leading valve manufacturer specializing in the production of various types of butterfly valves. Our products are extensively utilized in fluid systems across industries such as oil and gas, chemical, petrochemical, power generation, shipbuilding, and machinery.

 

Rich Experience

Our founders possess over three decades of experience in the stainless steel industry and have been exporting stainless steel products for more than 15 years.

 

Quality Control

We implement a scientific informatization management system and rigorous quality control processes. CAD and CAPP systems are employed for design and innovation, while PDM and ERP systems support our information management infrastructure.

 

Professional Team

We boast a highly skilled technical team, including five engineers with an average of over ten years of experience. This expertise enables efficient production arrangements and rapid business growth.

 

Sales Market

Our products are exported to over 30 countries, including European nations like Spain and the United Kingdom, North American markets such as the United States, Middle Eastern countries like Iran, and Southeast Asian countries such as Vietnam, Malaysia, and Singapore.

 

 
 

 

Parameter

 

Material

Stainless steel

Size

1/8"-1"

Nominal pressure

6000-10000 PSI

Technics

Forged

Thread Standard

NPT,BSP,BSPT,G,SAE,PT,RP,ISO and etc

Applicable medium

Oil,gas,water or other medium

Payment term

Stock products 100% payment before shipping out. In generally,30%deposit , 70% balance before shipment, L/C is also acceptable

Other detail

1) Material test report;
2) Testing to guarantee the system;
3) Specified specification available upon request;
4) Quality assurence;

Warranty:

1 year

Price:

Zhe Jiang, China

Brand Name:

According to customer requirements

Certificate:

ISO CE

Market:

Europe/North America/South America/Middle East/ Africa/Asia

Advantage:

High technology ; Good surface ; High quality etc

 

Types of Needle Valve

The needle valves produced by our company mainly include the following types:

 
 

Straight Needle Valves

These are the most common type. They have a linear, straight design, making them ideal for applications requiring fine control.

 
 
 

Angle Needle Valves

These valves have an angled body, which can help with space constraints or when the fluid needs to change direction.

 
 
 

Multi-turn Needle Valves

As the name suggests, these valves require multiple turns to open or close fully. They offer even more precise control but may take a bit longer to adjust.

 

 

Materials of Needle Valve

 

ITEM

PART

MATERIAL

1

BODY

CF8M

CF8

WCB

2

DISC

CF8M

CF8

WCB

3

PIN

304

4

GASKET

PTFE

5

GASKET

PTFE

6

CAP

CF8M

CF8

WCB

 

Pressure Rating of Needle Valves

 

Size

Media Temperature

Media Pressure

1/8 inches

-20˚C to 230˚C

0 to 408 bar

¼ inches

-20˚C to 230˚C

0 to 408 bar

3/8 inches

-20˚C to 230˚C

0 to 408 bar

½ inches

-20˚C to 230˚C

0 to 408 bar

¾ inches

-20˚C to 230˚C

0 to 408 bar

1 inch

-20˚C to 230˚C

0 to 408 bar

 

Needle Valve Ss316

 

Needle Valve Installation Precautions

●Ensure that the application conditions are compatible with the valve's specifications.

 

● Ensure the inside of the valve body and the piping is free of dirt, dust, and other particles.

 

● Make sure the valve seat is clean.

 

● Conduct a complete open/close cycle to ensure the valve's components function correctly.

 

● Ensure there is no pressure in the piping.

 

● Make sure there is enough space around the valve's installation location for it to operate correctly.

 

● Orient the needle valve correctly so that the arrow on the valve faces the same way as the flow direction.

 

Customizable Options for Needle Valves

● Body Material

 

● Connection Type

 

● Stem Tip Design

 

● Seal Material

Flow Coefficient (Cv)

Handle Design

Actuator Options

 

Packaging and Shipping

 

Packaging

Export standard

Carton or wooden case

Shipping

We will help you to choose the best shipping way according to your detail requirements. By sea, by air, or by express, etc.

 

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Our Services

 

 

1. Pre-sale service

ZHONGTOU VALVE has a technical team with rich experiences in fluid control system, and we own industry-leading installation and inspection equipments. From drawing to installation, ZHONGTOU VALVE will provide you with the most professional services, technical assistance and quality assurance, to optimize your system operation in the best state.

 

2. Sale of services

● Fast delivery

We are a factory with a large inventory of stock, which guarantees that the goods will be shipped within the fastest day from the date of signing the contract.

● Quality Inspection

Our products are manufactured in strict accordance with national and international standards, and we test each product before delivery. If you would like to view our quality certification and various test reports, please ask us.

● Project Tracking

ZHONGTOU VALVE will establish a dedicated project team for every solution order, in order to provide a better aftermarket service.

 

3. After-sales service

According to the contract to provide product certification, production license, inspection reports, installation instructions.

In the correct installation and use of the product quality problems, the company will be responsible for in the end.

 

Our Factory

 

WENZHOU ZHONGTOU VALVE/ZT VALVE is located in Wenzhou City, Zhejiang Province, a place with a very developed stainless steel industry. There is a well-established and mature supply chain here. We mainly export to over 30 countries in North America, South America, Europe, Asia and other states. With persistence and effort, we have become one of the leading enterprises of valves fittings and flanges in China.

 

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FAQ

Q: What is the main function of a needle valve?

A: Needle valves are commonly used to control flow and protect delicate gauges from damage caused by sudden pressure surges of liquids and gases. They're ideal for systems using lighter and less viscous materials with low flow rates.

Q: How do I know if my needle valve is bad?

A: Flooding: One of the most common symptoms.
Hard Starting: The engine might be difficult to start due to the incorrect amount of fuel being delivered.
Poor Idle: The engine might idle roughly or stall due to an imbalanced air-fuel mixture.

Q: How do I choose a needle valve?

A: Ensure that the type of needle valve connection is appropriate.
Confirm that the needle valve can operate at system temperature.
The working pressure of the needle valve must match the system pressure.
The material of the needle valve and its packing must be compatible with the fluid.

Q: How do I shut off a needle valve?

A: Find the valve. Rotate the handle slowly, until fully turned off. Verify gauge to read zero. And that's it!

Q: Do needle valves fail?

A: Needle valves have some problems in the long-term use of the process. These include problems with the valve body, spool, sealing surface, etc., and also blocking faults, air leakage faults, valve slippage, inflexible operation and other faults.

Q: How do you tighten a needle valve?

A: Depressurize the system.
Open the needle valve completely.
Use a torque wrench to apply torque to the packing nut according to the valve manufacturer's specifications.
If a torque wrench is unavailable, tighten the nut approximately 1/16 turn.

As one of the leading needle valve manufacturers and suppliers in China, we warmly welcome you to buy discount needle valve from our factory. All our products are with high quality and competitive price. Contact us for quotation.

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