Carbon Steel Needle Valve

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Carbon Steel Needle Valve

Material: Carbon Steel(A105，AISI1020), Stainless Steel (SS304, SS316)

Size Range: 1/4″ to 2″ (DN6 to DN50)

Connection Options: Female Thread, NPT, BSPT, BSPP (G)

Working Pressure: 3000 PSI to 10000 PSI (206.7 bar to 689 bar)

Working Temperature: -53°C to +540°C (-63.4°F to +1004°F)

Sealing Options: PTFE, VITON, PEEK, Graphite

Manufacturing Method: Forging

Applicable Medium: Oil, Gas, Water

Manufacturing Standard: ANSI, ASME, GB, JIS, DIN, Customize as per customer’s drawing

Product Overview

Needle valves are precision-engineered valves designed to provide accurate regulation of fluid flow in a pipeline. With a finely threaded stem, they are ideal for applications that require tight control and smooth adjustment. These valves can handle a wide range of media, including water, gas, oil, Working Pressure: 3000 PSI to 10000 PSI (206.7 bar to 689 bar)and other non-corrosive fluids.

Operating Mechanism (Drive Mode):

Manual Operation: Needle valves are manually operated with a handwheel for precise flow control.
Optional Actuation: Some needle valves can be equipped with motorized or pneumatic actuators for remote control in specialized applications.

Materials

Body Material Options: Stainless Steel (304, 316, 316L), Carbon Steel, Brass, Alloy Steel for high-temperature and high-pressure applications
Handle: Stainless Steel or Aluminum
Stem: Stainless Steel
Seat Materials:
- Soft Seals: PTFE, EPDM for low and medium temperature applications
- Metal-to-Metal Seals: Stainless Steel, Inconel for high-temperature and high-pressure applications

Certifications:

Compliance: API, ISO 9001, CE, PED certifications for pressure-containing equipment
Optional Explosion-Proof Certification: Available for applications in hazardous environments, particularly where valves may need to integrate with automated systems.

Product Features

Precision Flow Control: Tapered needle stem design allows for accurate flow regulation with minimal backlash.

Leakage Prevention: High-quality sealing material ensures zero leakage even in challenging conditions.

Corrosion Resistant: Made of stainless steel or other corrosion-resistant materials to extend valve life.

Robust Construction: Engineered for durability and reliable performance in demanding conditions.

Compact Design: Suitable for installations with limited space.

Wide Compatibility: Suitable for various media types, including gas, water, oil, and other non-corrosive fluids.

Specification Parameters

Structural Length Standard: GB/T 12221, ASME B16.10 (Defines face-to-face and end-to-end dimensions for flanged, threaded, and welded connections)

Connection Forms Standards: Flanged Connections (HG/T 20592-20605, GB/T 9112-9124, ASME B16.5), Threaded Connections (BSP, NPT, ISO 7-1), Welded Connections (ASME B16.25)

Available Sizes (Caliber): 1/4″ ~ 2″ (DN6 ~ DN50), custom sizes available upon request

Pressure-Temperature Rating: GB/T 12224, ASME B16.34

Pressure Range: PN2.5 MPa ~ PN42 MPa / Class 150 ~ Class 2500

Temperature Range: -53°C to +540°C (-63.4°F to +1004°F), depending on body and seat materials

Specification Applications

Industries:

Oil & Gas
Petrochemical Processing
Power Generation (Steam, Thermal, Nuclear)
Water Treatment and Distribution
Chemical Processing
HVAC Systems
Industrial Manufacturing
Laboratory Equipment

Specific Applications:

Precision flow regulation in instrumentation lines
Isolation and calibration in pressure gauges and test equipment
Control and shut-off in high-pressure pipelines
Use in small-scale systems requiring fine adjustment of flow

Installation Instructions:

Ensure the pipeline is depressurized before installation.
Use PTFE tape or appropriate sealing compound for threaded connections.
Tighten the valve body with the appropriate tools, ensuring not to over tighten and damage threads.

Valve Actuation

Process Optimization

Precision Engineering

Pipeline Solutions

Industrial Valves

Flow Control