316 stainless steel ball valve Description
316 stainless steel ball valve is a valve with 316 stainless steel as the core material. The "316" in its name represents the specific composition combination of austenitic stainless steel: containing 16-18% chromium, 10-14% nickel and 2-3% molybdenum, forming a ferrite-austenite duplex structure. The addition of molybdenum significantly improves the resistance to corrosive media such as chlorides and sulfuric acid, and is particularly suitable for marine environments and chemical scenes.
Core structure and classification
Main structure:
The valve body is made of 316L (low carbon type) or 316 material, formed by casting or forging process;
The ball is precision machined from 316 stainless steel, and the surface can be plated with hard alloy (such as nickel-based coating) to improve wear resistance.
Seal design:
Soft seal: PTFE or graphite material, applicable temperature -29℃~200℃, leakage level up to VI;
Hard seal: Stellite alloy surfacing sealing surface, temperature resistance up to 538℃, suitable for medium containing particles.
316 stainless steel ball valve Specification
|
item |
value |
|
Warranty |
1.5 years |
|
Type |
Ball Valves |
|
Certification |
CE, ISO |
|
Customized support |
OEM |
|
Place of Origin |
China |
|
Henan |
|
|
Brand Name |
GNEE |
|
Model Number |
2 Piece Ball Valve |
|
Application |
General |
|
Temperature of Media |
High Temperature |
|
Power |
manual |
|
Media |
gas |
|
Port Size |
1/2" to 2" |
|
Structure |
BALL |
316 stainless steel ball valve
Applications
Petrochemical Industry:
When transporting sulfur-containing crude oil and sour natural gas, 316 material can resist H₂S corrosion;
V-type regulating ball valve is used for flow control of medium containing particles.
LNG Storage and Transportation:
Deep-cold ball valve (-196℃) is used in liquefied natural gas loading and unloading system, and the valve body is cryogenically treated to prevent brittle cracking.
Food and Pharmaceuticals:
316L stainless steel meets hygiene standards and is used for sterile fluid pipelines.
Selection Points
Material Comparison:
316 vs 304: 316 contains molybdenum, and its resistance to chloride ion corrosion is increased by more than 3 times, and the cost is about 20% higher;
316 vs 316L: 316L (low carbon type) is more suitable for welding scenarios and reduces the risk of intergranular corrosion.
Standard Adaptation:
American standard models (such as Q41Y-150LB) comply with API 6D and ASME B16.34 standards;
Flange connections must match ANSI B16.5 or GB/T 9113 standards.
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