Needle Valves 
The needle valve made by Hongji Instrument& Valve Manufacturing Co., Ltd. is a type of valve with a small port and a threaded, needle-shaped plunger. It allows precise regulation of flow, They are also usually used in flow-metering applications, especially when a constant, calibrated, flow rate must be maintained for a certain duration, such as the idle fuel flow in a carburetor, steam in the pipe from the power plant, as well as to provide shut off for the pressure gauge or on applicators in many industries.
1. Needle Valve Features& Applications:

• Accurate& Precise control flow rate and pressure.
• Provide reliable cutoff.
• Precise adjustment of flow, bearing resistance, and pressure regulation.
• Also can be used in pump start, turbine by-pass, flow discharge, air regulation, and Reservoir inlet.
• Small Size.

• Inlet/Outlet: Straight type, Tee Type, Elbow Type, Y type

• Pressure Range: 5000Psi-15000Psi(344Bar-10343Bar)
• Working temperatures: -54°C-649°C (-65°F-1200°F)
• Size:1/8''-1''(NPT), DN6-DN20, 
• Connection: Dual Ferrules, Flange, Thread, Welding.
• Application: Liquid or Gas, Steam, Water
• Body Material:304, 316,316L, 321, Alloy, HC276, Monel400, Enel 600/625, 2205(S31803), 2507

• Oil& Gas
• Power Plant
• Nuclear Energy 
• Petrochemical
• Chemicals
• Water Treatment
• Semi-Conductor 
• Food& Beverage

Background
Hongji Instrument& Valve Manufacturing Co., Ltd. Was founded in 2009. The campus of Hongji Instrument& Valve Manufacturing Co., Ltd. Covers approximately 46000 square-meter lands and is located in Tianchang City, Anhui Province, China. Our plants and office buildings have been established on a high standard level and applied to the ISO quality system to ensure the products we build and the service we provide meet the highest requirement. Our company has committed to producing forged stainless steel or alloy ball valves, needle valves, valve sets, pipe unions, air distributors, and welded joints. With years of dedication, we have developed and maintained a good business relationships with many leading companies in different industries, Such as Qinshan Nuclear Power Plant. Conventional Island Nuclear Power Plant, Siemens, Ningde Chemical, PetroChina, Sinopec, CNOOC, Saudi oil fields, etc., in order to fulfill the increasing needs in terms of harsh application usage from our client side, Hongji has made a partial acquisition of another valve plant in 2023, the engineering and technical team members have been increased up to 8 personals, total manufacturing capacity includes 36 CNCs, 28 high precision horizontal lathes, to utilize the fine manufacturing process effectively. Our target aims to provide clients with the best products and services.

1. Can I get a Sample?
We do provide some small specific samples accordingly based on the process we situate in.  
2. Do you provide customized products?
We are good to offer customized services in terms of logo labeling, manufacturing based on samples or blueprints, etc. 
3. Will communication be a problem? 
Our sales team had great knowledge of our products and acquired solid English communication skills in both written and speaking; the communication can be accessed either literally or verbally via any social networking platform. 
4. Payment Method.
L/C, T/T, PayPal, Western Union, etc.  Principally we do not accept third-party transactions via China's mainland region channel. 
5. Why Choose us?

• Quality: 100% leakage, material, and functionality test in process and before shipping.
• Variety:  Highly customizable flexibility. 
• Reliability:15 years of manufacturing experience.
• Efficiency: Quick& Effective response.
• Utility: Direct link from Manufacturer.
• Flexibility:  OEM/ODM are provided.
• Authentication: Real-time plant audit provided.
• Competitiveness: Price is negotiable on large volumes