Stainless Steel Angle Needle Valve
JX-0205
- Brand Name: Plumberstar
- Type: F & M Angle-type Needle Valve
- Temperature of Media: High Temperature
- Power:Manual
- Media: Oil, acid, water
- Port Size:1/8″~3/4″
- Structure:Angle
- Material: Stainless Steel 316SS304L, SS316L
- pressure:6000PSI
- Flow pattern: Straight/ Angle
- Certificate: ISO9001:2008, CE
- Working Temperature:315℃(600°F)
- Connection: NPT, BSPT, BSPP
Orifice::0.08~0.25(in), 2~6.4mm
Stainless Steel 316 Angle Needle Valve
An angle needle valve’s inlet and exhaust apertures are angled at 90 °. Particular applications are more suitable for the angle needle valve due to its reduced pressure loss. When space is limited or the fluid must change direction, the angled body of these valves can assist. Instead of an in-line flow, these needle valves reverse the flow from the inlet by 90 degrees. While the operational principle remains unchanged, the 90-degree angle facilitates enhanced system integration.
Testing Conducted On SS316 Angle Needle Valve
Systems of processing plants, refineries, and LPG that are challenging to deactivate due to solid particles, corrosion, and particulate substances.
Standard Test: Seat and packing leakage of each valve is evaluated using nitrogen at 1000 psi, with a maximum allowable leak rate of 0.1 standard cm3/min.
Hydro Test: conducted at 1.5 times the working pressure using purified water. On request, temperature and helium leak evaluations are provided at a maximum working pressure of 10,000 psi (700 bar).
SS316 Angle Needle Valve Selection Criteria
Material, pressure, dimension, and temperature are the primary attributes and application prerequisites when choosing a needle valve.
Material composition
The particular application determines the material of the needle valve enclosure. Brass and stainless steel are the most frequently used materials for valve housings due to their broad spectrum of chemical resistance; however, alternative materials are also accessible to cater to specific applications.
- Steel stainless steel
Angle needle valves made of stainless steel are chemically resistant to all media. The material is resilient and resistant to high pressures and temperatures. Unless the stainless steel is subjected to continuous exposure to salinity, it remains compatible with aggressive and corrosive environments such as seawater; otherwise, corrosion may occur.
- Port & orifice size
The port and orifice dimensions of needle valves vary widely. Ends on the connection terminals may be either male or female. The National Pipe Thread (NPT), the British Standard Pipe (BSP), and the metric system (ISO standards) are frequently employed thread standards. The most prevalent needle valve dimensions are 2 to 12 mm (1/8″ to 2″). Ensuring proper port and orifice dimensions promotes efficient flow and system operation, reducing the likelihood of erosion and leakage.
- Pressure
Comprehending the pressure application specifications in a given system is crucial to selecting the appropriate angle needle valve. At 100°F, robust needle valves can withstand pressures between 275 and 413 bar or 4,000 to 5,000 psi (equivalent to 275 to 413 bar). For high-pressure hydraulic applications, for instance, high-performance valves are accessible; these valves have a maximum pressure capacity of 10,000 psi (689 bar) at 100°F (38°C). The vacuum needle configuration is resistant to low pressure.
- Temperature
Angle needle valves are appropriate for applications involving high or low temperatures. Specify the packing/sealing material and valve housing accordingly, particularly for extreme temperatures, to ensure they can withstand the specifications. For a temperature range of -65°F to 450°F (-54°C to 232°C), the two most prevalent sealing materials are PTFE (Teflon) and PEEK (Polyether Ether Ketone), which provide enhanced resistance to temperatures up to 600°F (315 °C).
How Is an Angle Needle Valve Manufactured?
There is normally a sequence of processes involved in the manufacturing of needle valves. The first step is to select materials for the valve components, considering the requirements. Stainless steel, brass, and other alloys are materials commonly used. Machines are then used to manufacture the different components of the needle valve, including the valve body, stem, seat, and other internal pieces. These components are created by machining the selected materials. Precision machining is essential to achieve extremely tight tolerances and a clean surface finish.
After machining, the components are assembled to form the complete needle valve. This process ensures that everything is precisely aligned and secure. Following the completion of the assembly process, the needle valve is subjected to tightness testing to ensure there are no leaks and that the valve can efficiently regulate fluid flow.
Polishing and coating are two common surface finishes applied to the outer surfaces of the needle valve. These treatments improve the valve’s overall look and increase its resistance to corrosion. Quality control procedures are carried out at different stages of the production process to ensure that the valve meets industry standards and requirements. Measurements such as pressure testing, dimensional inspections, and other quality assurance procedures are included here.
Applications of SS316 Angle Needle Valve
It is highly suitable for demanding oil and gas installations, such as processing plants and refineries, hydraulic applications, water treatment facilities, and power plants.
What Do You Do When a Needle Valve Is Not Working Properly?
There are a variety of operational challenges and safety concerns that may arise from a failed needle valve. Leakage, uneven flow control, operating difficulties, corrosion and erosion, sticking or jamming, damage to internal components, and possible disturbances to the system are common issues associated with a needle valve that is not performing at its full capacity. Typically, to address these concerns, it is necessary either to replace the malfunctioning needle valve with a new one or to repair it to restore its initial performance. It is vital to perform routine maintenance on the needle valves and replace them at the appropriate time to avoid these issues and ensure the system continues to function unassisted.
FAQs
1. What is the material of the SS316 needle valve stem packing?
Our Plumberstar SS316 needle valves come standard with filled modified PTFE stem packing. We stack several PTFE ring layers and fit stainless steel support washers on the top and bottom during assembly. This standard PTFE packing works steadily from -60℃ to 232℃ for long-term use. It creates little friction, resists wear well, and barely reacts with most chemicals. It cuts down the force needed to twist the valve stem, and stops seal breakdown caused by corrosive liquids after years of use. This packing fits all our SS316 needle valve sizes from 1/8″ up to 3/4″, and works with versions rated for up to 6000 PSI pressure.
We offer two alternate packing types for harsh setups, such as hot steam or strong corrosive liquids. You can swap in these upgraded packs without changing the valve body, stem, or main internal structure.
- First, flexible graphite packing (Grafoil). It handles hot steam and heat transfer fluid between 232℃ and 650℃. It holds up well through repeated temperature shifts and frequent valve turns, and keeps tight seals under extreme heat. We help you pick this packing based on your working setup, and run heat resistance tests if you need proof.
- Second, glass fiber-filled PTFE composite packing. It keeps PTFE’s great anti-corrosion ability, and adds stronger resistance against deformation under constant pressure. It lowers leaks that happen when packing loosens over long compression cycles.
We compress all optional packing materials in layered stacks when building each valve. After full assembly, every needle valve goes through stem seal tests and pressure hold trials. We only ship units that pass our internal seal standards. This ensures steady, leak-free performance during regular use. We can also run extra custom seal tests for valves built for unique, tough working environments, if you ask us to.
2. Does the SS316 needle valve conform to international standards?
Every SS316 needle valve made by Plumberstar is designed, built, and checked following widely recognized global industrial valve rules. We forge valve bodies from ASTM A182 F316 or F316L stainless steel. Thread ends follow two common global types: NPT and BSP. All internal valve structures are built to ASME B16.34 rules. Our factory pressure tests follow either ISO 5208 or API 598 standards. The valve shell gets tested at 1.5 times its rated working pressure, and we run tightness tests on the sealing seats as stated in official standard rules.
3. Can you supply this SS316 needle valve with a different handle type?
We offer many custom handle choices for Plumberstar SS316 needle valves. The valve body, stem, sealing packing, and inner flow paths stay fully the same. You just swap out the operating handle to fit your equipment and daily operation habits. No new stainless steel forging molds are needed for this change. Our needle valves range from 1/8 inch to 1 inch. We supply matching standard handles for every size. Each design balances turning force and comfortable operation. We have four ready-made handle types for different industrial uses. There are grooved non-slip plastic grips, long stainless steel strip handles, lockable T-shaped handles to stop accidental adjustment, and square anti-slip aluminum handwheels. They work well on chemical equipment, measuring instruments, gas control lines, and general industrial piping.
4. What is the payment for the SS316 needle valve?
We accept all mainstream global trade payment methods for Plumberstar SS316 needle valves. We work out flexible payment plans based on how long we’ve cooperated, your order size, and your buying needs. These plans work for sample batches, small mixed container shipments, full container loads, and long-term partnership projects.
T/T wire transfer is our most common payment option. It’s the standard choice for new buyers and regular bulk orders. You pay a 30% deposit first to lock your order and start production. We also accept irrevocable sight L/C for big construction project orders or overseas clients who prefer letter of credit payments. We can discuss minimum order values and exact payment rules together. The bank opening your L/C needs good global standing and reliable credit scores.
5. What documentation is provided with the SS316 needle valve shipment?
Plumberstar supplies full sets of customs and project inspection papers for every SS316 needle valve shipment. We split these files into physical original copies and digital PDF versions. Standard shipping paperwork covers commercial invoices, packing lists, sea or air freight bill copies, and certificates of origin. Every file is printed with batch numbers, valve sizes, SS316 material grades, and ordered quantities. All data matches the actual products exactly, so customs officers from any country can clear your goods smoothly. We put all hard copies inside your shipping container. Digital PDF files will land in your specified email within 24 hours once the cargo finishes loading on the transport vessel.
