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NXF UNS S31603/1.4404/SUS316L OD 1/2-10'' Pressure 3000-9000PSI 316L High-Temperature Liquid and Gas Control Angle Valve
2026-10-26 17:20 NXF GROUP
2
Products Description
316L Introduction
SAE 316L stainless steel is an austenitic stainless steel and the second most common stainless steel after SAE 304 stainless steel. Its primary alloying constituents after iron are chromium (16–18%), nickel (10–12%), and molybdenum (2–3%). Up to 2% manganese and small (<1%) quantities of silicon, phosphorus, and sulfur are also present. The addition of molybdenum provides greater corrosion resistance than 304, with respect to localized corrosive attack by chlorides, hydrogen embrittlement and to general corrosion by reducing acids, and other acids such as sulfuric acid;while sulfur is added to improve ease-of-tooling/machinability. 316L grade is the low carbon version of 316 stainless steel, which improves relative corrosion-resistance. When cold worked, 316 can produce high yield and tensile strengths similar to duplex stainless steel grades.
It is commonly used in chemical and petrochemical industry, in food processing, pharmaceutical equipment, medical devices, jewellery, luxury watches (especially diver's watches), in potable water piping,wastewater treatment,in marine applications and architectural applications near the seashore or in urban areas.
It is commonly used in chemical and petrochemical industry, in food processing, pharmaceutical equipment, medical devices, jewellery, luxury watches (especially diver's watches), in potable water piping,wastewater treatment,in marine applications and architectural applications near the seashore or in urban areas.
316L High-Temperature Liquid and Gas Control Angle Valve Introduction
This 316L High-Temperature Liquid and Gas Control Angle Valve is a high-pressure manual needle control valve designed for precise regulation and shut-off of liquid and gaseous media. It is forged from premium 316L stainless steel, featuring excellent resistance to corrosion, oxidation and high temperature, which makes it suitable for harsh working conditions. Material performance: 316L stainless steel contains molybdenum element and low carbon content. It delivers superior anti-corrosion performance against acids, alkalis and humid media, with stable mechanical strength at elevated temperatures and great resistance to intergranular corrosion.
Pressure rating: The valve is rated at 3000PSI working pressure, capable of withstanding high pressure in fluid pipelines. The flow direction is clearly marked on the valve body to ensure correct installation.
Structure & operation: It adopts manual handwheel adjustment structure. Rotating the black multi-edge handwheel can accurately control the opening of the valve core, realizing fine flow regulation or complete shut-off. The cross-type valve body integrates multiple connection ports, supporting flexible pipeline layout. It is equipped with compression ferrule and threaded connections for fast, leak-free assembly.
Sealing & reliability: Precision machined sealing surface ensures reliable sealing performance, effectively preventing medium leakage. All contact parts are 316L material to avoid galvanic corrosion.
Application: Widely used in petrochemical, laboratory gas circuits, hydraulic systems, instrumentation pipelines, energy and power industries for controlling steam, oil, water, nitrogen and various corrosive liquids and gases.
Advantages: Compact structure, easy operation, high pressure bearing capacity, stable performance, long service life, convenient maintenance and strong adaptability for both high-temperature liquid and gas medium control.
316L High-Temperature Liquid and Gas Control Angle Valve Drawing
316L Chemical Composition And Mechanical Properties
Factory and Product Pictures
316L High-Temperature Liquid and Gas Control Angle Valve Product Pictures
316L PMI spectral testing proves
Video of a customer visiting us
Product processing
316L High-Temperature Liquid and Gas Control Angle Valve Product Processing
1.Raw Material Inspection:
Adopt certified 316L stainless steel bar stock as the main raw material. Perform spectral composition analysis, hardness testing and ultrasonic internal flaw inspection to verify alloy composition and metallurgical quality. Eliminate blanks with internal porosity, inclusions, cracks and surface defects. Record all test data for batch traceability, and only qualified raw materials can enter the machining process. Auxiliary parts such as valve stem, sealing gasket and handwheel also undergo incoming material inspection separately.
2.CNC Precision Machining:
3.Precision Grinding & Sealing Surface Lapping:
4.Parts Cleaning & Assembly:
5.Pressure & Sealing Performance Test:
6.Final Inspection & Packaging:
2.CNC Precision Machining:
Clamp the qualified 316L bar on the CNC lathe and machining center. Complete rough turning and finish turning of the valve body blank, process the external thread, internal flow channel, ferrule connection port and mounting sealing surface strictly according to drawing tolerances. Carry out milling for the valve body outer profile, flow cavity and valve seat sealing groove. Control the surface roughness of the sealing area to meet the sealing requirement. Remove cutting chips after machining and perform preliminary deburring.
3.Precision Grinding & Sealing Surface Lapping:
Grind the valve seat and valve plug sealing contact surface to achieve high flatness. Carry out manual or mechanical lapping treatment between the valve core and valve seat with abrasive paste, to form a tight matching sealing pair. This step ensures excellent tightness under high pressure of liquid and gas medium, and reduces the risk of medium leakage. All flow passages are cleaned to remove tiny burrs and lapping residues.
4.Parts Cleaning & Assembly:
Put all machined metal components into ultrasonic cleaning tank with special degreasing liquid to remove cutting oil, polishing paste and metal dust. Rinse thoroughly with pure water and dry completely. Assemble valve seat, valve core, valve stem, packing, gland and black handwheel in order under a dust-controlled workstation. Adjust the packing compression amount properly to avoid leakage at the valve stem while ensuring smooth opening and closing operation.
5.Pressure & Sealing Performance Test:
Carry out air tightness test and hydrostatic pressure test according to 3000PSI rated working pressure standard. First conduct shell pressure test on the valve body, then perform seat sealing test. Check for leakage at the ferrule ports, thread joints and sealing surface when the valve is closed. Adjust or rework unqualifie products. Mark the flow direction, pressure rating “3000PSI” and material “316L” by laser marking after passing the test.
6.Final Inspection & Packaging:
Inspect overall dimensions, thread quality, marking clarity, switching flexibility and surface finish. Double-check no scratch, dent or residual impurity inside the flow channel. Wrap the finished valve with anti-corrosion protective film and protective caps for all ports to prevent thread damage and contamination. Place into sealed packaging bag with desiccant, then pack into export carton or wooden case for storage and shipment.
Our NXF GROUP advantage as follow
1.Our NXF GROUP have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can give you the lowest price based on best quality.
2.Our NXF GROUP can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality,Such as PMI and size testing.
3.Our NXF GROUP biggest advantage is 3S service. Small quantity, short time, special materials.
4.Our NXF GROUP have excellent quality certificate system and trademark certificate.
5.Our NXF GROUP have a comprehensive after-sales service guarantee, such as the transaction guarantee provided by Alibaba International Station, as well as remote technical guidance and services.
6.Our NXF GROUP have a well-established logistics support system that can save you both time and money, providing you with a one-stop service.
2.Our NXF GROUP can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality,Such as PMI and size testing.
3.Our NXF GROUP biggest advantage is 3S service. Small quantity, short time, special materials.
4.Our NXF GROUP have excellent quality certificate system and trademark certificate.
5.Our NXF GROUP have a comprehensive after-sales service guarantee, such as the transaction guarantee provided by Alibaba International Station, as well as remote technical guidance and services.
6.Our NXF GROUP have a well-established logistics support system that can save you both time and money, providing you with a one-stop service.
Packing & Delivery
Packing
Delivery
Company Profile
New XiFei (SuZhou) Business Co.,Ltd is one of the leading and most respected manufacturers in China. Our products include metals,machinery, containers, construction materials, mechanical products, electrical systems, and medical accessories.Established in1980, XIFEI has been working diligently ever since to embrace the needs of our global customer base.We work to ensure absolute customer satisfaction. Our team has dedicated itself to perfecting our three core components, "Service, Management and Craftsmanship." Our advantage:3S Service(Small Quantity/Short Time/Special Material)
Certification
FAQ
1. who are we?
We are based in Jiangsu, China, start from 2021,sell to South Asia(30.00%),Eastern Asia(10.00%),Mid East(10.00%),Eastern Europe(10.00%),South America(10.00%),Domestic Market(5.00%),North America(5.00%),Northern Europe(5.00%),Central America(5.00%),Africa(5.00%),Southeast Asia(5.00%). There are total about 101-200 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Pipe,Flange,Steel plate,Pipe fittings,Alloy products
4. why should you buy from us not from other suppliers?
Our advantage:
We are based in Jiangsu, China, start from 2021,sell to South Asia(30.00%),Eastern Asia(10.00%),Mid East(10.00%),Eastern Europe(10.00%),South America(10.00%),Domestic Market(5.00%),North America(5.00%),Northern Europe(5.00%),Central America(5.00%),Africa(5.00%),Southeast Asia(5.00%). There are total about 101-200 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Pipe,Flange,Steel plate,Pipe fittings,Alloy products
4. why should you buy from us not from other suppliers?
Our advantage:
1.Our NXF GROUP have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can give you the lowest price based on best quality.
2.Our NXF GROUP can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality,Such as PMI and size testing.
3.Our NXF GROUP biggest advantage is 3S service. Small quantity, short time, special materials.
4.Our NXF GROUP have excellent quality certificate system and trademark certificate.
5.Our NXF GROUP have a comprehensive after-sales service guarantee, such as the transaction guarantee provided by Alibaba International Station, as well as remote technical guidance and services.
6.Our NXF GROUP have a well-established logistics support system that can save you both time and money, providing you with a one-stop service.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU；
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,Credit Card,PayPal;
Language Spoken:English,Chinese,Spanish,Russian
2.Our NXF GROUP can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality,Such as PMI and size testing.
3.Our NXF GROUP biggest advantage is 3S service. Small quantity, short time, special materials.
4.Our NXF GROUP have excellent quality certificate system and trademark certificate.
5.Our NXF GROUP have a comprehensive after-sales service guarantee, such as the transaction guarantee provided by Alibaba International Station, as well as remote technical guidance and services.
6.Our NXF GROUP have a well-established logistics support system that can save you both time and money, providing you with a one-stop service.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU；
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,Credit Card,PayPal;
Language Spoken:English,Chinese,Spanish,Russian
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