| 6000PSI/10000PSI Needle Valve |
| Forged steel Body and Cap, Size:1/4 to 1 inches |
| Thread Ends:ANSI B1.20.1(NPT),BS7/1 (DIN2999),ISO7/1(ISO228) Materials:F316,F304,A105 |
- Dual ultra-high pressure rating: 6000PSI / 10000PSI, designed for extreme high-pressure pipeline systems, stable performance under harsh working conditions.
- Body & cap made of forged steel, higher strength, better pressure resistance and impact resistance than cast products, not easy to deform or crack.
- Precision needle valve design, with fine flow control performance, can accurately adjust the medium flow rate, suitable for occasions requiring precise flow regulation.
- Multi-thread standards available: ANSI B1.20.1 (NPT), BS7/1 (DIN2999), ISO7/1 (ISO228), fully adapting to global market and different pipeline connection requirements.
- Wide material selection: F316, F304 stainless steel and A105 carbon steel, corrosion-resistant, high-temperature resistant, suitable for various corrosive and non-corrosive media.
- Size range: 1/4″ to 1″, compact structure, suitable for small-diameter, high-pressure pipeline applications where space is limited.
- Screwed end design, easy to install, disassemble and maintain, no complicated welding process, reducing installation and maintenance costs.
- Strictly compliant with industrial standards (consistent with high-pressure valve design specifications), reliable sealing performance, no leakage under high pressure, long service life.
- Widely used in high-pressure industrial fields, with strong applicability and stable performance in long-term operation.
Full Technical Parameters
1. Basic Specification
- Valve Type: Precision Needle Valve
- Pressure Rating: 6000PSI / 10000PSI (dual rating optional, suitable for ultra-high pressure service)
- Design & Manufacturing Standard: ASME B16.34 (compliant with high-pressure valve design requirements)
- Inspection & Test Standard: API 598 (100% shell test, seat tightness test, pressure test before delivery)
- Operation Mode: Manual (handwheel operation, precise flow adjustment)
- Flow Direction: One-way (optional two-way for special requirements)
- Valve Core: Precision needle type (tungsten carbide or stainless steel, wear-resistant and corrosion-resistant)
2. Size & End Connections
- Nominal Size (NPS): 1/4″ ~ 1″
- End Type: Screwed End (Threaded End)
- Thread Standards:
- ANSI B1.20.1 (NPT) – American Standard Pipe Thread, widely used in North American markets
- BS7/1 (DIN2999) – British Standard Pipe Thread, applicable to European and Southeast Asian markets
- ISO7/1 (ISO228) – International Standard Pipe Thread, universal in global industrial applications
- Thread Precision: High-precision processing, ensuring tight connection and no leakage under high pressure
3. Body & Cap
- Construction Process: Forged Steel (forging process ensures uniform material structure, high density, and strong pressure-bearing capacity)
- Material Options:
- A105: Carbon Steel, suitable for non-corrosive media (water, oil, gas) in general high-pressure pipelines, cost-effective.
- F304 (AISI 304 Stainless Steel): Good corrosion resistance, suitable for mild corrosive media, widely used in chemical, water treatment industries.
- F316 (AISI 316 Stainless Steel): Excellent corrosion resistance, resistant to seawater, acid-base media, suitable for harsh industrial environments (marine, chemical, petrochemical).
- Surface Treatment: Anti-rust treatment (galvanizing or polishing), external surface smooth, internal surface polished to reduce flow resistance and prevent medium accumulation.
4. Internal Structure & Parts
- Needle (Valve Core): Precision machined, material consistent with body or tungsten carbide, sharp and wear-resistant, ensuring precise flow control.
- Seat: Reinforced PTFE or metal seat (optional), high temperature resistance, high pressure resistance, good sealing performance, no leakage under ultra-high pressure.
- Handwheel: Stainless steel or carbon steel handwheel, ergonomic design, easy to operate, can achieve fine adjustment of flow.
- Stem: Stainless steel, hardened treatment, high strength, good wear resistance, no deformation during operation.
- Packing: High-temperature resistant, high-pressure resistant packing (graphite or PTFE), ensuring stem sealing, no medium leakage.
5. Temperature Range
- Standard Temperature Range: -29°C ~ 200°C (depends on seat and packing material; can be customized to -40°C ~ 300°C for special high-temperature requirements).
6. Application
- Suitable for media: Water, oil, gas, chemical reagents, acid-base solutions, seawater and other media (depending on material selection).
- Applicable industries: Petroleum, petrochemical, natural gas, offshore oil platforms, high-pressure hydraulic systems, chemical processing, power plants, etc.
- Installation Note: Installed in a horizontal or vertical position, ensuring the handwheel is easy to operate; the flow direction should be consistent with the arrow mark on the valve body; avoid installation in places with strong vibration to prevent loosening and leakage.
Working Cases (Practical Application Scenarios)
The 6000PSI/10000PSI forged steel needle valve is widely used in ultra-high pressure industrial scenarios, with proven stable performance and reliable operation. The following are typical working cases for reference:
Case 1: Offshore Oil Platform High-Pressure Pipeline System (10000PSI)
- Application Site: Offshore oil platform in the Gulf of Mexico (a North American oil company)
- Valve Configuration: 10000PSI needle valve, size 3/8″, material F316 stainless steel, NPT thread, metal seat.
- Working Condition: The valve is installed in the offshore oil wellhead high-pressure pipeline, used to adjust the flow rate of crude oil and natural gas mixture, working pressure 9500PSI, working temperature 150°C, medium containing seawater and crude oil (corrosive).
- Application Effect: The forged steel body and F316 material effectively resist corrosion and seawater erosion; the 10000PSI ultra-high pressure rating ensures no leakage under extreme pressure; the precision needle design realizes fine adjustment of flow, ensuring stable operation of the wellhead system. The valves have been in continuous operation for 2 years without failure, reducing maintenance frequency and cost.
Case 2: Petrochemical High-Pressure Chemical Reactor Pipeline (6000PSI)
- Application Site: A large petrochemical plant in Southeast Asia (chemical reagent production line)
- Valve Configuration: 6000PSI needle valve, size 1″, material A105 carbon steel, BSP thread, reinforced PTFE seat.
- Working Condition: Installed in the high-pressure pipeline of the chemical reactor, used to control the flow of acid-base chemical reagents, working pressure 5800PSI, working temperature 180°C, medium is corrosive chemical solution.
- Application Effect: The forged A105 body has strong pressure-bearing capacity, adapting to the high-pressure working environment of the reactor; the reinforced PTFE seat ensures good sealing performance, preventing leakage of corrosive media; the precise flow adjustment function ensures the stability of the chemical reaction, improving product quality. The valves have been put into use for 1.5 years, with stable performance and meeting the plant’s production requirements.
Case 3: High-Pressure Hydraulic System in Power Plant (6000PSI)
- Application Site: A thermal power plant in Europe
- Valve Configuration: 6000PSI needle valve, size 1/4″, material F304 stainless steel, ISO thread, PTFE packing.
- Working Condition: Installed in the high-pressure hydraulic control system of the power plant’s steam turbine, used to adjust the flow of hydraulic oil, working pressure 5500PSI, working temperature 120°C, medium is high-temperature hydraulic oil.
- Application Effect: The compact size of the valve is suitable for the limited space of the hydraulic system; the F304 material resists the oxidation of high-temperature hydraulic oil; the precise adjustment function ensures the stable operation of the hydraulic system, avoiding the failure of the steam turbine due to unstable hydraulic pressure. The valves have been operating stably for 3 years, with low failure rate and easy maintenance.