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NXF UNS S31603/1.4404 OD 1/2-10'' Pressure 3000-9000PSI Hydraulic Instrumentation Valve All Metal Gas Cylinder Angle Valve
2026-10-27 15:22 NXF GROUP
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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;[2] 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,[3][4] wastewater treatment,[5] in marine applications[6] and architectural applications near the seashore or in urban areas.[7][8]
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,[3][4] wastewater treatment,[5] in marine applications[6] and architectural applications near the seashore or in urban areas.[7][8]
316L Hydraulic Instrumentation Valve All Metal Gas Cylinder Angle Valve Introduction
This 316L All Metal Gas Cylinder Angle Valve is a heavy-duty high-pressure angle valve specially designed for gas cylinder,
hydraulic and instrumentation pipeline systems, marked with a 6000PSI pressure rating. The entire wetted structure is forged and machined from 316L stainless steel, delivering reliable all-metal sealing performance for high-pressure gas and clean fluid media.
Material performance: 316L stainless steel with low carbon and molybdenum alloying elements provides excellent resistance to pitting corrosion, crevice corrosion and intergranular corrosion. It maintains stable mechanical strength under high pressure and wide temperature ranges, compatible with inert gas, oxygen, nitrogen and many non-corrosive or weakly corrosive media. All media contact components adopt 316L to prevent galvanic corrosion.
hydraulic and instrumentation pipeline systems, marked with a 6000PSI pressure rating. The entire wetted structure is forged and machined from 316L stainless steel, delivering reliable all-metal sealing performance for high-pressure gas and clean fluid media.
Material performance: 316L stainless steel with low carbon and molybdenum alloying elements provides excellent resistance to pitting corrosion, crevice corrosion and intergranular corrosion. It maintains stable mechanical strength under high pressure and wide temperature ranges, compatible with inert gas, oxygen, nitrogen and many non-corrosive or weakly corrosive media. All media contact components adopt 316L to prevent galvanic corrosion.
Pressure & sealing: Rated working pressure up to 6000PSI. It adopts precision lapped all-metal sealing pair, which avoids aging and failure problems of rubber or PTFE soft seals. The metal-to-metal seal ensures stable sealing performance under ultra-high pressure, frequent pressure impact and high/low temperature cycling conditions.
Structure & operation: It is equipped with an integrated solid stainless steel handwheel. The disc-shaped handwheel provides large torque output for easy opening and closing even under maximum working pressure. The valve body is a multi-port angle type with clearly stamped flow direction arrow on the body for correct installation. Threaded ports are protected by blue plastic thread caps to keep threads clean and undamaged during storage and transportation. Connection method: It supports standard external thread cylinder connection and instrument thread connection. It can be directly installed on gas cylinders or matched with instrument pipelines, easy for on-site assembly and disassembly. Application: Widely used in high-pressure gas cylinders, gas distribution cabinets, hydraulic test systems, petrochemical instrumentation, laboratory high-pressure gas circuits and energy equipment for switching and shut-off control of high-pressure gas and hydraulic media.
Advantages: Full metal sealing structure, no non-metal sealing parts, ultra-high pressure resistance, long service life, good temperature adaptability, compact valve body, easy operation, stable shut-off performance, suitable for severe working conditions where soft seals cannot work reliably.
316L Hydraulic Instrumentation Valve All Metal Gas Cylinder Angle Valve Drawing
316L Chemical Composition And Mechanical Properties
Factory and Product Pictures
316L Hydraulic Instrumentation Valve All Metal Gas Cylinder Angle Valve Product Pictures
316L PMI spectral testing proves
Video of a customer visiting us
Product processing
316L Hydraulic Instrumentation Valve All Metal Gas Cylinder Angle ValveProduct Processing
1.Raw Material Inspection:
Select certified 316L stainless steel round bar as the valve body raw blank. Conduct spectral composition analysis to verify alloy elements conform to 316L standard requirements. Perform sampling tests including hardness, tensile strength and ultrasonic non-destructive flaw detection to check for internal shrinkage cavities, inclusions and hidden cracks. Visually inspect the bar surface for pits, scratches and folding defects. Record batch number, test results and supplier information for full production traceability. Auxiliary spare parts such as valve stem, all-metal sealing assembly, packing gland and polished stainless steel handwheel are subject to independent incoming inspection before production.
2.CNC Precision Machining:
3.Sealing Surface Lapping & Internal Channel Cleaning:
4.Ultrasonic Cleaning & Dust-free Assembly:
5.High Pressure Air Tightness & Hydraulic Burst Test:
6.Final Inspection & Packaging:
2.CNC Precision Machining:
Fix the qualified 316L bar on CNC lathe and machining center. Complete rough turning and finish turning of the valve body blank, accurately machine cylinder connection thread, outlet thread, internal flow passage, valve cavity and valve seat sealing groove strictly according to drawing tolerance. Process the conical sealing tip of the valve stem. Strictly control the surface roughness of the sealing matching area to guarantee stable all-metal sealing performance. Remove cutting chips and perform preliminary deburring after machining is finished.
3.Sealing Surface Lapping & Internal Channel Cleaning:
Carry out precision matching lapping between the valve stem cone and valve seat sealing surface with ultra-fine abrasive paste. The all-metal sealing pair after lapping can realize zero leakage under high-pressure gas cylinder working conditions. Thoroughly clean all internal runners, thread holes and sealing grooves to remove tiny burrs, lapping abrasive residues and metal scraps, so as to avoid scratching the sealing surface during assembly and affect the sealing effect.
4.Ultrasonic Cleaning & Dust-free Assembly:
Put all machined metal components into the ultrasonic cleaning tank with neutral degreasing agent to remove cutting fluid, polishing compound and fine metal dust. Rinse repeatedly with purified water and dry completely with clean hot air. Assemble the valve stem, metal sealing component, packing, gland and polished handwheel in sequence inside a low-dust workstation. Adjust the packing compression properly to achieve reliable stem sealing while keeping the handwheel opening and closing operation smooth and stable.
5.High Pressure Air Tightness & Hydraulic Burst Test:
Carry out shell hydraulic strength test and seat gas tightness test according to the rated pressure standard of the gas cylinder angle valve, hold pressure for the specified time. Check leakage at threaded joints, stem packing and all-metal sealing position. Repeatedly test opening and closing stroke and adjustment feel. Rework or scrap unqualified products with leakage, jamming or poor sealing. After passing the pressure test, use laser marking to print model, pressure rating, material grade 316L and medium flow direction arrow on the valve body.
6.Final Inspection & Packaging:
Carry out comprehensive final inspection, including dimensional tolerance, thread integrity, lapped sealing surface quality, marking clarity, handwheel operating smoothness and internal channel cleanliness. Install blue plastic thread protective caps on all connection ports to protect threads and sealing surfaces. Wrap the finished gas cylinder angle valve with anti-corrosion protective film, put it into a sealed bag with desiccant, then pack into export cartons or wooden cases for moisture-proof and shock-resistant storage and transportation.
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.
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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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